Repository: Qix-/tortellini
Branch: master
Commit: b47a39af410e
Files: 10
Total size: 883.8 KB

Directory structure:
gitextract_w1n33c92/

├── .editorconfig
├── .github/
│   ├── FUNDING.yml
│   └── workflows/
│       └── ci.yml
├── .gitignore
├── CMakeLists.txt
├── README.md
├── catch2/
│   ├── catch_amalgamated.cpp
│   └── catch_amalgamated.hpp
├── include/
│   └── tortellini.hh
└── test.cc

================================================
FILE CONTENTS
================================================

================================================
FILE: .editorconfig
================================================
root = true

[*]
indent_style = tab
indent_size = 4
tab_width = 4
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

[{*.json,*.json.example,*.gyp,*.yml,*.yaml}]
indent_style = space
indent_size = 2

[{*.py,*.asm}]
indent_style = space

[*.py]
indent_size = 4

[*.asm]
indent_size = 8

[*.md]
trim_trailing_whitespace = false

# Ideal settings - some plugins might support these.
[*.js]
quote_type = single

[{*.c,*.cc,*.h,*.hh,*.cpp,*.hpp,*.m,*.mm,*.mpp,*.js,*.java,*.go,*.rs,*.php,*.ng,*.jsx,*.ts,*.d,*.cs,*.swift}]
curly_bracket_next_line = false
spaces_around_operators = true
spaces_around_brackets = outside
# close enough to 1TB
indent_brace_style = K&R


================================================
FILE: .github/FUNDING.yml
================================================
github: qix-


================================================
FILE: .github/workflows/ci.yml
================================================
name: Test
on: [push]

jobs:
  buildlinux:
    name: Test
    runs-on: ubuntu-latest
    timeout-minutes: 3
    steps:
      - uses: actions/checkout@v2
      - name: Install CMake
        run: |
          sudo apt install cmake
      - name: Configure
        run: |
          mkdir build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=ON
      - name: Build
        run: |
          cmake --build build
      - name: Test
        run: |
          cd build && ctest -VV


================================================
FILE: .gitignore
================================================
/build/
/.cache/


================================================
FILE: CMakeLists.txt
================================================
project (tortellini)
cmake_minimum_required (VERSION 3.2)

add_library (tortellini INTERFACE)
target_include_directories (tortellini INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}/include")
target_sources (tortellini INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}/include/tortellini.hh")

if (BUILD_TESTING)
	enable_testing ()
	add_executable (tortellini-tests test.cc catch2/catch_amalgamated.hpp catch2/catch_amalgamated.cpp)
	target_link_libraries (tortellini-tests PRIVATE tortellini)

	target_compile_options (tortellini-tests PRIVATE
		$<IF:$<CXX_COMPILER_ID:MSVC>,/W4,-Wall -Wextra -Werror -pedantic>
	)

	add_test (
		NAME tortellini-test
		COMMAND $<TARGET_FILE:tortellini-tests> -s
	)
endif ()


================================================
FILE: README.md
================================================
<h1 align="center">
	<img height="250" src="logo.png" alt="Tortellini">
</h1>

The stupid - _and I mean really, really stupid_ - INI file reader and writer for C++11 and above. Calorie free (no dependencies)!

```c++
#include <tortellini.hh>

// (optional)
#include <fstream>

int main() {
	tortellini::ini ini;

	// (optional) Read INI in from a file.
	// Default construction and subsequent assignment is just fine, too.
	std::ifstream in("config.ini");
	in >> ini;

	// Retrieval
	//
	// All value retrievals must be done via the "default" operator
	// (the pipe operator).
	//
	// The right-hand-side type is what is returned. Anything other
	// than a string-like type causes a parse (see caveats section below).
	//
	// All keys are case-INsensitive. This includes section headers.
	std::string s          = ini["Section"]["key"] | "default string";
	int i                  = ini["Section"]["key"] | 42;    // default int
	long l                 = ini["Section"]["key"] | 42L;   // default long
	long long ll           = ini["Section"]["key"] | 42LL;  // default long long
	unsigned int u         = ini["Section"]["key"] | 42u;   // default unsigned int
	unsigned long ul       = ini["Section"]["key"] | 42UL;  // default unsigned long
	unsigned long long ull = ini["Section"]["key"] | 42ULL; // default unsigned long long
	float f                = ini["Section"]["key"] | 42.0f; // default float
	double d               = ini["Section"]["key"] | 42.0;  // default double
	long double ld         = ini["Section"]["key"] | 42.0L; // default long double
	bool b                 = ini["Section"]["key"] | true;  // default bool

	// Assignment
	//
	// (This example uses the same key, but of course
	// in reality this would just be overwriting the
	// same key over and over again - probably not
	// what you'd really want. I would hope I wouldn't
	// have to explain this, but you never know.)
	ini["New Section"]["new-key"] = "Noodles are tasty.";
	ini["New Section"]["new-key"] = 1234;
	ini["New Section"]["new-key"] = 1234u;
	ini["New Section"]["new-key"] = 1234L;
	ini["New Section"]["new-key"] = 1234UL;
	ini["New Section"]["new-key"] = 1234LL;
	ini["New Section"]["new-key"] = 1234ULL;
	ini["New Section"]["new-key"] = 1234.0f;
	ini["New Section"]["new-key"] = 1234.0;
	ini["New Section"]["new-key"] = 1234.0L;
	ini["New Section"]["new-key"] = true;

	// "Naked" section (top-most key/value pairs, before a section header)
	// denoted by empty string in section selector
	ini[""]["naked-key"] = "I'll be at the very top, without a section";

	// You can also iterate over all sections
	for (auto &pair : ini) {
		std::cout << pair.name << "\n"; // the name of the section
		int v = pair.section["some-key"] | 1234;
		std::cout << "some-key=" << v << "\n";
	}

	// (optional) Write INI to file.
	std::ofstream out("config.ini");
	out << ini;
}
```

# Things you should know.

This library has very few bells and whistles. It doesn't do anything fancy.

Here are the guarantees/features:

- Case-insensitive keys and section headers. Reading from a key/section with different cases will work fine, and writing to an existing section/key will preserve the casing.
- Untouched output (from using `stream << ini`) is guaranteed to be parsable (by using `stream >> ini`).
- Barring I/O issues or exceptions coming from the standard library, Tortellini will not throw or abort (see below section about "invalid data").
- _Pasta in, pasta out._ Source strings (from a parse) are preserved to the output. If you use `yes` instead of `true`, Tortellini will preserve that (unless the application overwrites the value).
- `yes`, `1` and `true` are all parsable as `bool(true)`. All other values equate to `false`. **NOTE:** This means that `ini[""]["b"] | true` will return `false`, _not_ `true`, if the key exists but is not a valid, parsable truth-ey value. This may be counter-intuitive for some users.
- All values are inherently string, and only parsed when retrieved.

Here are the caveats:

- **Do not store or share anything returned from the subscript operators (`[]`).** They return temporary objects that are meant for short-lived interactions. They are NOT lifetime safe and expect the underlying `tortellini::ini` instance to subsist beyond their own lifetimes.
- Invalid keys, values or section names skip the line entirely. This condition is henceforth referred to as "invalid data".
- Integer overflows when parsing are invalid data.
- Mismatched `]` for a `[` line is invalid data. Yes, keys _will_ bleed into the preceding section name. That's user error, not your application's. _Embrace it._
- Empty keys or empty values (excluding leading/trailing whitespace!) are "invalid data" in that they might be valid but not included in the resulting data and thus _won't_ be re-emitted.
- Empty sections (or sections with 100% invalid data as key/value pairs) are themselves invalid data and are not emitted.
- `[]` is a valid section name. It means the "naked" section. Re-emitting the INI will move those keys to the top regardless of where `[]` is positioned in the input file.
- No comments are supported; `;` is a valid (string) character.
- No caching or memoization; if you retrieve anything but a `std::string`, there _will_ be a parse. I never said Tortellini was hyper-over-optimized.

# Testing
You can test by running:

```bash
mkdir build && cd build
cmake .. -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Debug
cmake --build .
ctest
```

# License

You have two choices in license. Pick whichever one you want.
Tortellini is uncucumbered. Go crazy. Eat some pasta.

### Unlicense

```
This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.

In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

For more information, please refer to <http://unlicense.org/>
```

### MIT License

```
Copyright (c) 2020 Josh Junon

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
```


================================================
FILE: catch2/catch_amalgamated.cpp
================================================
//              Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
//   (See accompanying file LICENSE.txt or copy at
//        https://www.boost.org/LICENSE_1_0.txt)

// SPDX-License-Identifier: BSL-1.0

//  Catch v3.4.0
//  Generated: 2023-07-13 13:23:09.554273
//  ----------------------------------------------------------
//  This file is an amalgamation of multiple different files.
//  You probably shouldn't edit it directly.
//  ----------------------------------------------------------

#include "catch_amalgamated.hpp"


#ifndef CATCH_WINDOWS_H_PROXY_HPP_INCLUDED
#define CATCH_WINDOWS_H_PROXY_HPP_INCLUDED


#if defined(CATCH_PLATFORM_WINDOWS)

// We might end up with the define made globally through the compiler,
// and we don't want to trigger warnings for this
#if !defined(NOMINMAX)
#  define NOMINMAX
#endif
#if !defined(WIN32_LEAN_AND_MEAN)
#  define WIN32_LEAN_AND_MEAN
#endif

#include <windows.h>

#endif // defined(CATCH_PLATFORM_WINDOWS)

#endif // CATCH_WINDOWS_H_PROXY_HPP_INCLUDED




namespace Catch {
    namespace Benchmark {
        namespace Detail {
            ChronometerConcept::~ChronometerConcept() = default;
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch




namespace Catch {
    namespace Benchmark {
        namespace Detail {
            BenchmarkFunction::callable::~callable() = default;
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch




#include <exception>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            struct optimized_away_error : std::exception {
                const char* what() const noexcept override;
            };

            const char* optimized_away_error::what() const noexcept {
                return "could not measure benchmark, maybe it was optimized away";
            }

            void throw_optimized_away_error() {
                Catch::throw_exception(optimized_away_error{});
            }

        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch


// Adapted from donated nonius code.



#include <cassert>
#include <cstddef>
#include <numeric>
#include <random>


#if defined(CATCH_CONFIG_USE_ASYNC)
#include <future>
#endif

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            namespace {

                template <typename URng, typename Estimator>
                static sample
                resample( URng& rng,
                          unsigned int resamples,
                          std::vector<double>::const_iterator first,
                          std::vector<double>::const_iterator last,
                          Estimator& estimator ) {
                    auto n = static_cast<size_t>( last - first );
                    std::uniform_int_distribution<decltype( n )> dist( 0,
                                                                       n - 1 );

                    sample out;
                    out.reserve( resamples );
                    // We allocate the vector outside the loop to avoid realloc
                    // per resample
                    std::vector<double> resampled;
                    resampled.reserve( n );
                    for ( size_t i = 0; i < resamples; ++i ) {
                        resampled.clear();
                        for ( size_t s = 0; s < n; ++s ) {
                            resampled.push_back(
                                first[static_cast<std::ptrdiff_t>(
                                    dist( rng ) )] );
                        }
                        const auto estimate =
                            estimator( resampled.begin(), resampled.end() );
                        out.push_back( estimate );
                    }
                    std::sort( out.begin(), out.end() );
                    return out;
                }

                static double outlier_variance( Estimate<double> mean,
                                                Estimate<double> stddev,
                                                int n ) {
                    double sb = stddev.point;
                    double mn = mean.point / n;
                    double mg_min = mn / 2.;
                    double sg = (std::min)( mg_min / 4., sb / std::sqrt( n ) );
                    double sg2 = sg * sg;
                    double sb2 = sb * sb;

                    auto c_max = [n, mn, sb2, sg2]( double x ) -> double {
                        double k = mn - x;
                        double d = k * k;
                        double nd = n * d;
                        double k0 = -n * nd;
                        double k1 = sb2 - n * sg2 + nd;
                        double det = k1 * k1 - 4 * sg2 * k0;
                        return static_cast<int>( -2. * k0 /
                                                 ( k1 + std::sqrt( det ) ) );
                    };

                    auto var_out = [n, sb2, sg2]( double c ) {
                        double nc = n - c;
                        return ( nc / n ) * ( sb2 - nc * sg2 );
                    };

                    return (std::min)( var_out( 1 ),
                                       var_out(
                                           (std::min)( c_max( 0. ),
                                                       c_max( mg_min ) ) ) ) /
                           sb2;
                }

                static double erf_inv( double x ) {
                    // Code accompanying the article "Approximating the erfinv
                    // function" in GPU Computing Gems, Volume 2
                    double w, p;

                    w = -log( ( 1.0 - x ) * ( 1.0 + x ) );

                    if ( w < 6.250000 ) {
                        w = w - 3.125000;
                        p = -3.6444120640178196996e-21;
                        p = -1.685059138182016589e-19 + p * w;
                        p = 1.2858480715256400167e-18 + p * w;
                        p = 1.115787767802518096e-17 + p * w;
                        p = -1.333171662854620906e-16 + p * w;
                        p = 2.0972767875968561637e-17 + p * w;
                        p = 6.6376381343583238325e-15 + p * w;
                        p = -4.0545662729752068639e-14 + p * w;
                        p = -8.1519341976054721522e-14 + p * w;
                        p = 2.6335093153082322977e-12 + p * w;
                        p = -1.2975133253453532498e-11 + p * w;
                        p = -5.4154120542946279317e-11 + p * w;
                        p = 1.051212273321532285e-09 + p * w;
                        p = -4.1126339803469836976e-09 + p * w;
                        p = -2.9070369957882005086e-08 + p * w;
                        p = 4.2347877827932403518e-07 + p * w;
                        p = -1.3654692000834678645e-06 + p * w;
                        p = -1.3882523362786468719e-05 + p * w;
                        p = 0.0001867342080340571352 + p * w;
                        p = -0.00074070253416626697512 + p * w;
                        p = -0.0060336708714301490533 + p * w;
                        p = 0.24015818242558961693 + p * w;
                        p = 1.6536545626831027356 + p * w;
                    } else if ( w < 16.000000 ) {
                        w = sqrt( w ) - 3.250000;
                        p = 2.2137376921775787049e-09;
                        p = 9.0756561938885390979e-08 + p * w;
                        p = -2.7517406297064545428e-07 + p * w;
                        p = 1.8239629214389227755e-08 + p * w;
                        p = 1.5027403968909827627e-06 + p * w;
                        p = -4.013867526981545969e-06 + p * w;
                        p = 2.9234449089955446044e-06 + p * w;
                        p = 1.2475304481671778723e-05 + p * w;
                        p = -4.7318229009055733981e-05 + p * w;
                        p = 6.8284851459573175448e-05 + p * w;
                        p = 2.4031110387097893999e-05 + p * w;
                        p = -0.0003550375203628474796 + p * w;
                        p = 0.00095328937973738049703 + p * w;
                        p = -0.0016882755560235047313 + p * w;
                        p = 0.0024914420961078508066 + p * w;
                        p = -0.0037512085075692412107 + p * w;
                        p = 0.005370914553590063617 + p * w;
                        p = 1.0052589676941592334 + p * w;
                        p = 3.0838856104922207635 + p * w;
                    } else {
                        w = sqrt( w ) - 5.000000;
                        p = -2.7109920616438573243e-11;
                        p = -2.5556418169965252055e-10 + p * w;
                        p = 1.5076572693500548083e-09 + p * w;
                        p = -3.7894654401267369937e-09 + p * w;
                        p = 7.6157012080783393804e-09 + p * w;
                        p = -1.4960026627149240478e-08 + p * w;
                        p = 2.9147953450901080826e-08 + p * w;
                        p = -6.7711997758452339498e-08 + p * w;
                        p = 2.2900482228026654717e-07 + p * w;
                        p = -9.9298272942317002539e-07 + p * w;
                        p = 4.5260625972231537039e-06 + p * w;
                        p = -1.9681778105531670567e-05 + p * w;
                        p = 7.5995277030017761139e-05 + p * w;
                        p = -0.00021503011930044477347 + p * w;
                        p = -0.00013871931833623122026 + p * w;
                        p = 1.0103004648645343977 + p * w;
                        p = 4.8499064014085844221 + p * w;
                    }
                    return p * x;
                }

                static double
                standard_deviation( std::vector<double>::const_iterator first,
                                    std::vector<double>::const_iterator last ) {
                    auto m = Catch::Benchmark::Detail::mean( first, last );
                    double variance =
                        std::accumulate( first,
                                         last,
                                         0.,
                                         [m]( double a, double b ) {
                                             double diff = b - m;
                                             return a + diff * diff;
                                         } ) /
                        ( last - first );
                    return std::sqrt( variance );
                }

            } // namespace
        }     // namespace Detail
    }         // namespace Benchmark
} // namespace Catch

namespace Catch {
    namespace Benchmark {
        namespace Detail {

#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
            bool directCompare( double lhs, double rhs ) { return lhs == rhs; }
#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic pop
#endif

            double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last) {
                auto count = last - first;
                double idx = (count - 1) * k / static_cast<double>(q);
                int j = static_cast<int>(idx);
                double g = idx - j;
                std::nth_element(first, first + j, last);
                auto xj = first[j];
                if ( directCompare( g, 0 ) ) {
                    return xj;
                }

                auto xj1 = *std::min_element(first + (j + 1), last);
                return xj + g * (xj1 - xj);
            }

            OutlierClassification
            classify_outliers( std::vector<double>::const_iterator first,
                               std::vector<double>::const_iterator last ) {
                std::vector<double> copy( first, last );

                auto q1 = weighted_average_quantile( 1, 4, copy.begin(), copy.end() );
                auto q3 = weighted_average_quantile( 3, 4, copy.begin(), copy.end() );
                auto iqr = q3 - q1;
                auto los = q1 - ( iqr * 3. );
                auto lom = q1 - ( iqr * 1.5 );
                auto him = q3 + ( iqr * 1.5 );
                auto his = q3 + ( iqr * 3. );

                OutlierClassification o;
                for ( ; first != last; ++first ) {
                    const double t = *first;
                    if ( t < los ) {
                        ++o.low_severe;
                    } else if ( t < lom ) {
                        ++o.low_mild;
                    } else if ( t > his ) {
                        ++o.high_severe;
                    } else if ( t > him ) {
                        ++o.high_mild;
                    }
                    ++o.samples_seen;
                }
                return o;
            }

            double mean( std::vector<double>::const_iterator first,
                         std::vector<double>::const_iterator last ) {
                auto count = last - first;
                double sum = 0.;
                while (first != last) {
                    sum += *first;
                    ++first;
                }
                return sum / static_cast<double>(count);
            }


            double erfc_inv(double x) {
                return erf_inv(1.0 - x);
            }

            double normal_quantile(double p) {
                static const double ROOT_TWO = std::sqrt(2.0);

                double result = 0.0;
                assert(p >= 0 && p <= 1);
                if (p < 0 || p > 1) {
                    return result;
                }

                result = -erfc_inv(2.0 * p);
                // result *= normal distribution standard deviation (1.0) * sqrt(2)
                result *= /*sd * */ ROOT_TWO;
                // result += normal disttribution mean (0)
                return result;
            }

            bootstrap_analysis analyse_samples(double confidence_level,
                                               unsigned int n_resamples,
                                               std::vector<double>::iterator first,
                                               std::vector<double>::iterator last) {
                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
                CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
                static std::random_device entropy;
                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

                auto n = static_cast<int>(last - first); // seriously, one can't use integral types without hell in C++

                auto mean = &Detail::mean;
                auto stddev = &standard_deviation;

#if defined(CATCH_CONFIG_USE_ASYNC)
                auto Estimate = [=](double(*f)(std::vector<double>::const_iterator,
                                               std::vector<double>::const_iterator)) {
                    auto seed = entropy();
                    return std::async(std::launch::async, [=] {
                        std::mt19937 rng(seed);
                        auto resampled = resample(rng, n_resamples, first, last, f);
                        return bootstrap(confidence_level, first, last, resampled, f);
                    });
                };

                auto mean_future = Estimate(mean);
                auto stddev_future = Estimate(stddev);

                auto mean_estimate = mean_future.get();
                auto stddev_estimate = stddev_future.get();
#else
                auto Estimate = [=](double(*f)(std::vector<double>::const_iterator,
                                               std::vector<double>::const_iterator)) {
                    auto seed = entropy();
                    std::mt19937 rng(seed);
                    auto resampled = resample(rng, n_resamples, first, last, f);
                    return bootstrap(confidence_level, first, last, resampled, f);
                };

                auto mean_estimate = Estimate(mean);
                auto stddev_estimate = Estimate(stddev);
#endif // CATCH_USE_ASYNC

                double outlier_variance = Detail::outlier_variance(mean_estimate, stddev_estimate, n);

                return { mean_estimate, stddev_estimate, outlier_variance };
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch



#include <cmath>
#include <limits>

namespace {

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool marginComparison(double lhs, double rhs, double margin) {
    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
}

}

namespace Catch {

    Approx::Approx ( double value )
    :   m_epsilon( std::numeric_limits<float>::epsilon()*100. ),
        m_margin( 0.0 ),
        m_scale( 0.0 ),
        m_value( value )
    {}

    Approx Approx::custom() {
        return Approx( 0 );
    }

    Approx Approx::operator-() const {
        auto temp(*this);
        temp.m_value = -temp.m_value;
        return temp;
    }


    std::string Approx::toString() const {
        ReusableStringStream rss;
        rss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
        return rss.str();
    }

    bool Approx::equalityComparisonImpl(const double other) const {
        // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
        // Thanks to Richard Harris for his help refining the scaled margin value
        return marginComparison(m_value, other, m_margin)
            || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(std::isinf(m_value)? 0 : m_value)));
    }

    void Approx::setMargin(double newMargin) {
        CATCH_ENFORCE(newMargin >= 0,
            "Invalid Approx::margin: " << newMargin << '.'
            << " Approx::Margin has to be non-negative.");
        m_margin = newMargin;
    }

    void Approx::setEpsilon(double newEpsilon) {
        CATCH_ENFORCE(newEpsilon >= 0 && newEpsilon <= 1.0,
            "Invalid Approx::epsilon: " << newEpsilon << '.'
            << " Approx::epsilon has to be in [0, 1]");
        m_epsilon = newEpsilon;
    }

namespace literals {
    Approx operator "" _a(long double val) {
        return Approx(val);
    }
    Approx operator "" _a(unsigned long long val) {
        return Approx(val);
    }
} // end namespace literals

std::string StringMaker<Catch::Approx>::convert(Catch::Approx const& value) {
    return value.toString();
}

} // end namespace Catch



namespace Catch {

    AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression):
        lazyExpression(_lazyExpression),
        resultType(_resultType) {}

    std::string AssertionResultData::reconstructExpression() const {

        if( reconstructedExpression.empty() ) {
            if( lazyExpression ) {
                ReusableStringStream rss;
                rss << lazyExpression;
                reconstructedExpression = rss.str();
            }
        }
        return reconstructedExpression;
    }

    AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData&& data )
    :   m_info( info ),
        m_resultData( CATCH_MOVE(data) )
    {}

    // Result was a success
    bool AssertionResult::succeeded() const {
        return Catch::isOk( m_resultData.resultType );
    }

    // Result was a success, or failure is suppressed
    bool AssertionResult::isOk() const {
        return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
    }

    ResultWas::OfType AssertionResult::getResultType() const {
        return m_resultData.resultType;
    }

    bool AssertionResult::hasExpression() const {
        return !m_info.capturedExpression.empty();
    }

    bool AssertionResult::hasMessage() const {
        return !m_resultData.message.empty();
    }

    std::string AssertionResult::getExpression() const {
        // Possibly overallocating by 3 characters should be basically free
        std::string expr; expr.reserve(m_info.capturedExpression.size() + 3);
        if (isFalseTest(m_info.resultDisposition)) {
            expr += "!(";
        }
        expr += m_info.capturedExpression;
        if (isFalseTest(m_info.resultDisposition)) {
            expr += ')';
        }
        return expr;
    }

    std::string AssertionResult::getExpressionInMacro() const {
        if ( m_info.macroName.empty() ) {
            return static_cast<std::string>( m_info.capturedExpression );
        }
        std::string expr;
        expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
        expr += m_info.macroName;
        expr += "( ";
        expr += m_info.capturedExpression;
        expr += " )";
        return expr;
    }

    bool AssertionResult::hasExpandedExpression() const {
        return hasExpression() && getExpandedExpression() != getExpression();
    }

    std::string AssertionResult::getExpandedExpression() const {
        std::string expr = m_resultData.reconstructExpression();
        return expr.empty()
                ? getExpression()
                : expr;
    }

    StringRef AssertionResult::getMessage() const {
        return m_resultData.message;
    }
    SourceLineInfo AssertionResult::getSourceInfo() const {
        return m_info.lineInfo;
    }

    StringRef AssertionResult::getTestMacroName() const {
        return m_info.macroName;
    }

} // end namespace Catch



#include <fstream>

namespace Catch {

    namespace {
        static bool enableBazelEnvSupport() {
#if defined( CATCH_CONFIG_BAZEL_SUPPORT )
            return true;
#else
            return Detail::getEnv( "BAZEL_TEST" ) != nullptr;
#endif
        }

        struct bazelShardingOptions {
            unsigned int shardIndex, shardCount;
            std::string shardFilePath;
        };

        static Optional<bazelShardingOptions> readBazelShardingOptions() {
            const auto bazelShardIndex = Detail::getEnv( "TEST_SHARD_INDEX" );
            const auto bazelShardTotal = Detail::getEnv( "TEST_TOTAL_SHARDS" );
            const auto bazelShardInfoFile = Detail::getEnv( "TEST_SHARD_STATUS_FILE" );


            const bool has_all =
                bazelShardIndex && bazelShardTotal && bazelShardInfoFile;
            if ( !has_all ) {
                // We provide nice warning message if the input is
                // misconfigured.
                auto warn = []( const char* env_var ) {
                    Catch::cerr()
                        << "Warning: Bazel shard configuration is missing '"
                        << env_var << "'. Shard configuration is skipped.\n";
                };
                if ( !bazelShardIndex ) {
                    warn( "TEST_SHARD_INDEX" );
                }
                if ( !bazelShardTotal ) {
                    warn( "TEST_TOTAL_SHARDS" );
                }
                if ( !bazelShardInfoFile ) {
                    warn( "TEST_SHARD_STATUS_FILE" );
                }
                return {};
            }

            auto shardIndex = parseUInt( bazelShardIndex );
            if ( !shardIndex ) {
                Catch::cerr()
                    << "Warning: could not parse 'TEST_SHARD_INDEX' ('" << bazelShardIndex
                    << "') as unsigned int.\n";
                return {};
            }
            auto shardTotal = parseUInt( bazelShardTotal );
            if ( !shardTotal ) {
                Catch::cerr()
                    << "Warning: could not parse 'TEST_TOTAL_SHARD' ('"
                    << bazelShardTotal << "') as unsigned int.\n";
                return {};
            }

            return bazelShardingOptions{
                *shardIndex, *shardTotal, bazelShardInfoFile };

        }
    } // end namespace


    bool operator==( ProcessedReporterSpec const& lhs,
                     ProcessedReporterSpec const& rhs ) {
        return lhs.name == rhs.name &&
               lhs.outputFilename == rhs.outputFilename &&
               lhs.colourMode == rhs.colourMode &&
               lhs.customOptions == rhs.customOptions;
    }

    Config::Config( ConfigData const& data ):
        m_data( data ) {
        // We need to trim filter specs to avoid trouble with superfluous
        // whitespace (esp. important for bdd macros, as those are manually
        // aligned with whitespace).

        for (auto& elem : m_data.testsOrTags) {
            elem = trim(elem);
        }
        for (auto& elem : m_data.sectionsToRun) {
            elem = trim(elem);
        }

        // Insert the default reporter if user hasn't asked for a specific one
        if ( m_data.reporterSpecifications.empty() ) {
            m_data.reporterSpecifications.push_back( {
#if defined( CATCH_CONFIG_DEFAULT_REPORTER )
                CATCH_CONFIG_DEFAULT_REPORTER,
#else
                "console",
#endif
                {}, {}, {}
            } );
        }

        if ( enableBazelEnvSupport() ) {
            readBazelEnvVars();
        }

        // Bazel support can modify the test specs, so parsing has to happen
        // after reading Bazel env vars.
        TestSpecParser parser( ITagAliasRegistry::get() );
        if ( !m_data.testsOrTags.empty() ) {
            m_hasTestFilters = true;
            for ( auto const& testOrTags : m_data.testsOrTags ) {
                parser.parse( testOrTags );
            }
        }
        m_testSpec = parser.testSpec();


        // We now fixup the reporter specs to handle default output spec,
        // default colour spec, etc
        bool defaultOutputUsed = false;
        for ( auto const& reporterSpec : m_data.reporterSpecifications ) {
            // We do the default-output check separately, while always
            // using the default output below to make the code simpler
            // and avoid superfluous copies.
            if ( reporterSpec.outputFile().none() ) {
                CATCH_ENFORCE( !defaultOutputUsed,
                               "Internal error: cannot use default output for "
                               "multiple reporters" );
                defaultOutputUsed = true;
            }

            m_processedReporterSpecs.push_back( ProcessedReporterSpec{
                reporterSpec.name(),
                reporterSpec.outputFile() ? *reporterSpec.outputFile()
                                          : data.defaultOutputFilename,
                reporterSpec.colourMode().valueOr( data.defaultColourMode ),
                reporterSpec.customOptions() } );
        }
    }

    Config::~Config() = default;


    bool Config::listTests() const          { return m_data.listTests; }
    bool Config::listTags() const           { return m_data.listTags; }
    bool Config::listReporters() const      { return m_data.listReporters; }
    bool Config::listListeners() const      { return m_data.listListeners; }

    std::vector<std::string> const& Config::getTestsOrTags() const { return m_data.testsOrTags; }
    std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }

    std::vector<ReporterSpec> const& Config::getReporterSpecs() const {
        return m_data.reporterSpecifications;
    }

    std::vector<ProcessedReporterSpec> const&
    Config::getProcessedReporterSpecs() const {
        return m_processedReporterSpecs;
    }

    TestSpec const& Config::testSpec() const { return m_testSpec; }
    bool Config::hasTestFilters() const { return m_hasTestFilters; }

    bool Config::showHelp() const { return m_data.showHelp; }

    // IConfig interface
    bool Config::allowThrows() const                   { return !m_data.noThrow; }
    StringRef Config::name() const { return m_data.name.empty() ? m_data.processName : m_data.name; }
    bool Config::includeSuccessfulResults() const      { return m_data.showSuccessfulTests; }
    bool Config::warnAboutMissingAssertions() const {
        return !!( m_data.warnings & WarnAbout::NoAssertions );
    }
    bool Config::warnAboutUnmatchedTestSpecs() const {
        return !!( m_data.warnings & WarnAbout::UnmatchedTestSpec );
    }
    bool Config::zeroTestsCountAsSuccess() const       { return m_data.allowZeroTests; }
    ShowDurations Config::showDurations() const        { return m_data.showDurations; }
    double Config::minDuration() const                 { return m_data.minDuration; }
    TestRunOrder Config::runOrder() const              { return m_data.runOrder; }
    uint32_t Config::rngSeed() const                   { return m_data.rngSeed; }
    unsigned int Config::shardCount() const            { return m_data.shardCount; }
    unsigned int Config::shardIndex() const            { return m_data.shardIndex; }
    ColourMode Config::defaultColourMode() const       { return m_data.defaultColourMode; }
    bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
    int Config::abortAfter() const                     { return m_data.abortAfter; }
    bool Config::showInvisibles() const                { return m_data.showInvisibles; }
    Verbosity Config::verbosity() const                { return m_data.verbosity; }

    bool Config::skipBenchmarks() const                           { return m_data.skipBenchmarks; }
    bool Config::benchmarkNoAnalysis() const                      { return m_data.benchmarkNoAnalysis; }
    unsigned int Config::benchmarkSamples() const                 { return m_data.benchmarkSamples; }
    double Config::benchmarkConfidenceInterval() const            { return m_data.benchmarkConfidenceInterval; }
    unsigned int Config::benchmarkResamples() const               { return m_data.benchmarkResamples; }
    std::chrono::milliseconds Config::benchmarkWarmupTime() const { return std::chrono::milliseconds(m_data.benchmarkWarmupTime); }

    void Config::readBazelEnvVars() {
        // Register a JUnit reporter for Bazel. Bazel sets an environment
        // variable with the path to XML output. If this file is written to
        // during test, Bazel will not generate a default XML output.
        // This allows the XML output file to contain higher level of detail
        // than what is possible otherwise.
        const auto bazelOutputFile = Detail::getEnv( "XML_OUTPUT_FILE" );

        if ( bazelOutputFile ) {
            m_data.reporterSpecifications.push_back(
                { "junit", std::string( bazelOutputFile ), {}, {} } );
        }

        const auto bazelTestSpec = Detail::getEnv( "TESTBRIDGE_TEST_ONLY" );
        if ( bazelTestSpec ) {
            // Presumably the test spec from environment should overwrite
            // the one we got from CLI (if we got any)
            m_data.testsOrTags.clear();
            m_data.testsOrTags.push_back( bazelTestSpec );
        }

        const auto bazelShardOptions = readBazelShardingOptions();
        if ( bazelShardOptions ) {
            std::ofstream f( bazelShardOptions->shardFilePath,
                             std::ios_base::out | std::ios_base::trunc );
            if ( f.is_open() ) {
                f << "";
                m_data.shardIndex = bazelShardOptions->shardIndex;
                m_data.shardCount = bazelShardOptions->shardCount;
            }
        }
    }

} // end namespace Catch





namespace Catch {
    std::uint32_t getSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }
}



#include <cassert>
#include <stack>

namespace Catch {

    ////////////////////////////////////////////////////////////////////////////


    ScopedMessage::ScopedMessage( MessageBuilder&& builder ):
        m_info( CATCH_MOVE(builder.m_info) ) {
        m_info.message = builder.m_stream.str();
        getResultCapture().pushScopedMessage( m_info );
    }

    ScopedMessage::ScopedMessage( ScopedMessage&& old ) noexcept:
        m_info( CATCH_MOVE( old.m_info ) ) {
        old.m_moved = true;
    }

    ScopedMessage::~ScopedMessage() {
        if ( !uncaught_exceptions() && !m_moved ){
            getResultCapture().popScopedMessage(m_info);
        }
    }


    Capturer::Capturer( StringRef macroName,
                        SourceLineInfo const& lineInfo,
                        ResultWas::OfType resultType,
                        StringRef names ):
        m_resultCapture( getResultCapture() ) {
        auto trimmed = [&] (size_t start, size_t end) {
            while (names[start] == ',' || isspace(static_cast<unsigned char>(names[start]))) {
                ++start;
            }
            while (names[end] == ',' || isspace(static_cast<unsigned char>(names[end]))) {
                --end;
            }
            return names.substr(start, end - start + 1);
        };
        auto skipq = [&] (size_t start, char quote) {
            for (auto i = start + 1; i < names.size() ; ++i) {
                if (names[i] == quote)
                    return i;
                if (names[i] == '\\')
                    ++i;
            }
            CATCH_INTERNAL_ERROR("CAPTURE parsing encountered unmatched quote");
        };

        size_t start = 0;
        std::stack<char> openings;
        for (size_t pos = 0; pos < names.size(); ++pos) {
            char c = names[pos];
            switch (c) {
            case '[':
            case '{':
            case '(':
            // It is basically impossible to disambiguate between
            // comparison and start of template args in this context
//            case '<':
                openings.push(c);
                break;
            case ']':
            case '}':
            case ')':
//           case '>':
                openings.pop();
                break;
            case '"':
            case '\'':
                pos = skipq(pos, c);
                break;
            case ',':
                if (start != pos && openings.empty()) {
                    m_messages.emplace_back(macroName, lineInfo, resultType);
                    m_messages.back().message = static_cast<std::string>(trimmed(start, pos));
                    m_messages.back().message += " := ";
                    start = pos;
                }
            }
        }
        assert(openings.empty() && "Mismatched openings");
        m_messages.emplace_back(macroName, lineInfo, resultType);
        m_messages.back().message = static_cast<std::string>(trimmed(start, names.size() - 1));
        m_messages.back().message += " := ";
    }
    Capturer::~Capturer() {
        if ( !uncaught_exceptions() ){
            assert( m_captured == m_messages.size() );
            for( size_t i = 0; i < m_captured; ++i  )
                m_resultCapture.popScopedMessage( m_messages[i] );
        }
    }

    void Capturer::captureValue( size_t index, std::string const& value ) {
        assert( index < m_messages.size() );
        m_messages[index].message += value;
        m_resultCapture.pushScopedMessage( m_messages[index] );
        m_captured++;
    }

} // end namespace Catch




#include <exception>

namespace Catch {

    namespace {

        class RegistryHub : public IRegistryHub,
                            public IMutableRegistryHub,
                            private Detail::NonCopyable {

        public: // IRegistryHub
            RegistryHub() = default;
            ReporterRegistry const& getReporterRegistry() const override {
                return m_reporterRegistry;
            }
            ITestCaseRegistry const& getTestCaseRegistry() const override {
                return m_testCaseRegistry;
            }
            IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const override {
                return m_exceptionTranslatorRegistry;
            }
            ITagAliasRegistry const& getTagAliasRegistry() const override {
                return m_tagAliasRegistry;
            }
            StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
                return m_exceptionRegistry;
            }

        public: // IMutableRegistryHub
            void registerReporter( std::string const& name, IReporterFactoryPtr factory ) override {
                m_reporterRegistry.registerReporter( name, CATCH_MOVE(factory) );
            }
            void registerListener( Detail::unique_ptr<EventListenerFactory> factory ) override {
                m_reporterRegistry.registerListener( CATCH_MOVE(factory) );
            }
            void registerTest( Detail::unique_ptr<TestCaseInfo>&& testInfo, Detail::unique_ptr<ITestInvoker>&& invoker ) override {
                m_testCaseRegistry.registerTest( CATCH_MOVE(testInfo), CATCH_MOVE(invoker) );
            }
            void registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator ) override {
                m_exceptionTranslatorRegistry.registerTranslator( CATCH_MOVE(translator) );
            }
            void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) override {
                m_tagAliasRegistry.add( alias, tag, lineInfo );
            }
            void registerStartupException() noexcept override {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
                m_exceptionRegistry.add(std::current_exception());
#else
                CATCH_INTERNAL_ERROR("Attempted to register active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
#endif
            }
            IMutableEnumValuesRegistry& getMutableEnumValuesRegistry() override {
                return m_enumValuesRegistry;
            }

        private:
            TestRegistry m_testCaseRegistry;
            ReporterRegistry m_reporterRegistry;
            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
            TagAliasRegistry m_tagAliasRegistry;
            StartupExceptionRegistry m_exceptionRegistry;
            Detail::EnumValuesRegistry m_enumValuesRegistry;
        };
    }

    using RegistryHubSingleton = Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;

    IRegistryHub const& getRegistryHub() {
        return RegistryHubSingleton::get();
    }
    IMutableRegistryHub& getMutableRegistryHub() {
        return RegistryHubSingleton::getMutable();
    }
    void cleanUp() {
        cleanupSingletons();
        cleanUpContext();
    }
    std::string translateActiveException() {
        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
    }


} // end namespace Catch



#include <algorithm>
#include <cassert>
#include <exception>
#include <iomanip>
#include <set>

namespace Catch {

    namespace {
        const int MaxExitCode = 255;

        IEventListenerPtr createReporter(std::string const& reporterName, ReporterConfig&& config) {
            auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, CATCH_MOVE(config));
            CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << '\'');

            return reporter;
        }

        IEventListenerPtr prepareReporters(Config const* config) {
            if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()
                    && config->getProcessedReporterSpecs().size() == 1) {
                auto const& spec = config->getProcessedReporterSpecs()[0];
                return createReporter(
                    spec.name,
                    ReporterConfig( config,
                                    makeStream( spec.outputFilename ),
                                    spec.colourMode,
                                    spec.customOptions ) );
            }

            auto multi = Detail::make_unique<MultiReporter>(config);

            auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
            for (auto const& listener : listeners) {
                multi->addListener(listener->create(config));
            }

            for ( auto const& reporterSpec : config->getProcessedReporterSpecs() ) {
                multi->addReporter( createReporter(
                    reporterSpec.name,
                    ReporterConfig( config,
                                    makeStream( reporterSpec.outputFilename ),
                                    reporterSpec.colourMode,
                                    reporterSpec.customOptions ) ) );
            }

            return multi;
        }

        class TestGroup {
        public:
            explicit TestGroup(IEventListenerPtr&& reporter, Config const* config):
                m_reporter(reporter.get()),
                m_config{config},
                m_context{config, CATCH_MOVE(reporter)} {

                assert( m_config->testSpec().getInvalidSpecs().empty() &&
                        "Invalid test specs should be handled before running tests" );

                auto const& allTestCases = getAllTestCasesSorted(*m_config);
                auto const& testSpec = m_config->testSpec();
                if ( !testSpec.hasFilters() ) {
                    for ( auto const& test : allTestCases ) {
                        if ( !test.getTestCaseInfo().isHidden() ) {
                            m_tests.emplace( &test );
                        }
                    }
                } else {
                    m_matches =
                        testSpec.matchesByFilter( allTestCases, *m_config );
                    for ( auto const& match : m_matches ) {
                        m_tests.insert( match.tests.begin(),
                                        match.tests.end() );
                    }
                }

                m_tests = createShard(m_tests, m_config->shardCount(), m_config->shardIndex());
            }

            Totals execute() {
                Totals totals;
                for (auto const& testCase : m_tests) {
                    if (!m_context.aborting())
                        totals += m_context.runTest(*testCase);
                    else
                        m_reporter->skipTest(testCase->getTestCaseInfo());
                }

                for (auto const& match : m_matches) {
                    if (match.tests.empty()) {
                        m_unmatchedTestSpecs = true;
                        m_reporter->noMatchingTestCases( match.name );
                    }
                }

                return totals;
            }

            bool hadUnmatchedTestSpecs() const {
                return m_unmatchedTestSpecs;
            }


        private:
            IEventListener* m_reporter;
            Config const* m_config;
            RunContext m_context;
            std::set<TestCaseHandle const*> m_tests;
            TestSpec::Matches m_matches;
            bool m_unmatchedTestSpecs = false;
        };

        void applyFilenamesAsTags() {
            for (auto const& testInfo : getRegistryHub().getTestCaseRegistry().getAllInfos()) {
                testInfo->addFilenameTag();
            }
        }

    } // anon namespace

    Session::Session() {
        static bool alreadyInstantiated = false;
        if( alreadyInstantiated ) {
            CATCH_TRY { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
            CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
        }

        // There cannot be exceptions at startup in no-exception mode.
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
        if ( !exceptions.empty() ) {
            config();
            getCurrentMutableContext().setConfig(m_config.get());

            m_startupExceptions = true;
            auto errStream = makeStream( "%stderr" );
            auto colourImpl = makeColourImpl(
                ColourMode::PlatformDefault, errStream.get() );
            auto guard = colourImpl->guardColour( Colour::Red );
            errStream->stream() << "Errors occurred during startup!" << '\n';
            // iterate over all exceptions and notify user
            for ( const auto& ex_ptr : exceptions ) {
                try {
                    std::rethrow_exception(ex_ptr);
                } catch ( std::exception const& ex ) {
                    errStream->stream() << TextFlow::Column( ex.what() ).indent(2) << '\n';
                }
            }
        }
#endif

        alreadyInstantiated = true;
        m_cli = makeCommandLineParser( m_configData );
    }
    Session::~Session() {
        Catch::cleanUp();
    }

    void Session::showHelp() const {
        Catch::cout()
                << "\nCatch2 v" << libraryVersion() << '\n'
                << m_cli << '\n'
                << "For more detailed usage please see the project docs\n\n" << std::flush;
    }
    void Session::libIdentify() {
        Catch::cout()
                << std::left << std::setw(16) << "description: " << "A Catch2 test executable\n"
                << std::left << std::setw(16) << "category: " << "testframework\n"
                << std::left << std::setw(16) << "framework: " << "Catch2\n"
                << std::left << std::setw(16) << "version: " << libraryVersion() << '\n' << std::flush;
    }

    int Session::applyCommandLine( int argc, char const * const * argv ) {
        if( m_startupExceptions )
            return 1;

        auto result = m_cli.parse( Clara::Args( argc, argv ) );

        if( !result ) {
            config();
            getCurrentMutableContext().setConfig(m_config.get());
            auto errStream = makeStream( "%stderr" );
            auto colour = makeColourImpl( ColourMode::PlatformDefault, errStream.get() );

            errStream->stream()
                << colour->guardColour( Colour::Red )
                << "\nError(s) in input:\n"
                << TextFlow::Column( result.errorMessage() ).indent( 2 )
                << "\n\n";
            errStream->stream() << "Run with -? for usage\n\n" << std::flush;
            return MaxExitCode;
        }

        if( m_configData.showHelp )
            showHelp();
        if( m_configData.libIdentify )
            libIdentify();

        m_config.reset();
        return 0;
    }

#if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
    int Session::applyCommandLine( int argc, wchar_t const * const * argv ) {

        char **utf8Argv = new char *[ argc ];

        for ( int i = 0; i < argc; ++i ) {
            int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, nullptr, 0, nullptr, nullptr );

            utf8Argv[ i ] = new char[ bufSize ];

            WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, nullptr, nullptr );
        }

        int returnCode = applyCommandLine( argc, utf8Argv );

        for ( int i = 0; i < argc; ++i )
            delete [] utf8Argv[ i ];

        delete [] utf8Argv;

        return returnCode;
    }
#endif

    void Session::useConfigData( ConfigData const& configData ) {
        m_configData = configData;
        m_config.reset();
    }

    int Session::run() {
        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
            Catch::cout() << "...waiting for enter/ return before starting\n" << std::flush;
            static_cast<void>(std::getchar());
        }
        int exitCode = runInternal();
        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << '\n' << std::flush;
            static_cast<void>(std::getchar());
        }
        return exitCode;
    }

    Clara::Parser const& Session::cli() const {
        return m_cli;
    }
    void Session::cli( Clara::Parser const& newParser ) {
        m_cli = newParser;
    }
    ConfigData& Session::configData() {
        return m_configData;
    }
    Config& Session::config() {
        if( !m_config )
            m_config = Detail::make_unique<Config>( m_configData );
        return *m_config;
    }

    int Session::runInternal() {
        if( m_startupExceptions )
            return 1;

        if (m_configData.showHelp || m_configData.libIdentify) {
            return 0;
        }

        if ( m_configData.shardIndex >= m_configData.shardCount ) {
            Catch::cerr() << "The shard count (" << m_configData.shardCount
                          << ") must be greater than the shard index ("
                          << m_configData.shardIndex << ")\n"
                          << std::flush;
            return 1;
        }

        CATCH_TRY {
            config(); // Force config to be constructed

            seedRng( *m_config );

            if (m_configData.filenamesAsTags) {
                applyFilenamesAsTags();
            }

            // Set up global config instance before we start calling into other functions
            getCurrentMutableContext().setConfig(m_config.get());

            // Create reporter(s) so we can route listings through them
            auto reporter = prepareReporters(m_config.get());

            auto const& invalidSpecs = m_config->testSpec().getInvalidSpecs();
            if ( !invalidSpecs.empty() ) {
                for ( auto const& spec : invalidSpecs ) {
                    reporter->reportInvalidTestSpec( spec );
                }
                return 1;
            }


            // Handle list request
            if (list(*reporter, *m_config)) {
                return 0;
            }

            TestGroup tests { CATCH_MOVE(reporter), m_config.get() };
            auto const totals = tests.execute();

            if ( tests.hadUnmatchedTestSpecs()
                && m_config->warnAboutUnmatchedTestSpecs() ) {
                return 3;
            }

            if ( totals.testCases.total() == 0
                && !m_config->zeroTestsCountAsSuccess() ) {
                return 2;
            }

            if ( totals.testCases.total() > 0 &&
                 totals.testCases.total() == totals.testCases.skipped
                && !m_config->zeroTestsCountAsSuccess() ) {
                return 4;
            }

            // Note that on unices only the lower 8 bits are usually used, clamping
            // the return value to 255 prevents false negative when some multiple
            // of 256 tests has failed
            return (std::min) (MaxExitCode, static_cast<int>(totals.assertions.failed));
        }
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        catch( std::exception& ex ) {
            Catch::cerr() << ex.what() << '\n' << std::flush;
            return MaxExitCode;
        }
#endif
    }

} // end namespace Catch




namespace Catch {

    RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
        CATCH_TRY {
            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
        } CATCH_CATCH_ALL {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }

}



#include <cassert>
#include <cctype>
#include <algorithm>

namespace Catch {

    namespace {
        using TCP_underlying_type = uint8_t;
        static_assert(sizeof(TestCaseProperties) == sizeof(TCP_underlying_type),
                      "The size of the TestCaseProperties is different from the assumed size");

        TestCaseProperties operator|(TestCaseProperties lhs, TestCaseProperties rhs) {
            return static_cast<TestCaseProperties>(
                static_cast<TCP_underlying_type>(lhs) | static_cast<TCP_underlying_type>(rhs)
            );
        }

        TestCaseProperties& operator|=(TestCaseProperties& lhs, TestCaseProperties rhs) {
            lhs = static_cast<TestCaseProperties>(
                static_cast<TCP_underlying_type>(lhs) | static_cast<TCP_underlying_type>(rhs)
            );
            return lhs;
        }

        TestCaseProperties operator&(TestCaseProperties lhs, TestCaseProperties rhs) {
            return static_cast<TestCaseProperties>(
                static_cast<TCP_underlying_type>(lhs) & static_cast<TCP_underlying_type>(rhs)
            );
        }

        bool applies(TestCaseProperties tcp) {
            static_assert(static_cast<TCP_underlying_type>(TestCaseProperties::None) == 0,
                          "TestCaseProperties::None must be equal to 0");
            return tcp != TestCaseProperties::None;
        }

        TestCaseProperties parseSpecialTag( StringRef tag ) {
            if( !tag.empty() && tag[0] == '.' )
                return TestCaseProperties::IsHidden;
            else if( tag == "!throws"_sr )
                return TestCaseProperties::Throws;
            else if( tag == "!shouldfail"_sr )
                return TestCaseProperties::ShouldFail;
            else if( tag == "!mayfail"_sr )
                return TestCaseProperties::MayFail;
            else if( tag == "!nonportable"_sr )
                return TestCaseProperties::NonPortable;
            else if( tag == "!benchmark"_sr )
                return TestCaseProperties::Benchmark | TestCaseProperties::IsHidden;
            else
                return TestCaseProperties::None;
        }
        bool isReservedTag( StringRef tag ) {
            return parseSpecialTag( tag ) == TestCaseProperties::None
                && tag.size() > 0
                && !std::isalnum( static_cast<unsigned char>(tag[0]) );
        }
        void enforceNotReservedTag( StringRef tag, SourceLineInfo const& _lineInfo ) {
            CATCH_ENFORCE( !isReservedTag(tag),
                          "Tag name: [" << tag << "] is not allowed.\n"
                          << "Tag names starting with non alphanumeric characters are reserved\n"
                          << _lineInfo );
        }

        std::string makeDefaultName() {
            static size_t counter = 0;
            return "Anonymous test case " + std::to_string(++counter);
        }

        StringRef extractFilenamePart(StringRef filename) {
            size_t lastDot = filename.size();
            while (lastDot > 0 && filename[lastDot - 1] != '.') {
                --lastDot;
            }
            --lastDot;

            size_t nameStart = lastDot;
            while (nameStart > 0 && filename[nameStart - 1] != '/' && filename[nameStart - 1] != '\\') {
                --nameStart;
            }

            return filename.substr(nameStart, lastDot - nameStart);
        }

        // Returns the upper bound on size of extra tags ([#file]+[.])
        size_t sizeOfExtraTags(StringRef filepath) {
            // [.] is 3, [#] is another 3
            const size_t extras = 3 + 3;
            return extractFilenamePart(filepath).size() + extras;
        }
    } // end unnamed namespace

    bool operator<(  Tag const& lhs, Tag const& rhs ) {
        Detail::CaseInsensitiveLess cmp;
        return cmp( lhs.original, rhs.original );
    }
    bool operator==( Tag const& lhs, Tag const& rhs ) {
        Detail::CaseInsensitiveEqualTo cmp;
        return cmp( lhs.original, rhs.original );
    }

    Detail::unique_ptr<TestCaseInfo>
        makeTestCaseInfo(StringRef _className,
                         NameAndTags const& nameAndTags,
                         SourceLineInfo const& _lineInfo ) {
        return Detail::make_unique<TestCaseInfo>(_className, nameAndTags, _lineInfo);
    }

    TestCaseInfo::TestCaseInfo(StringRef _className,
                               NameAndTags const& _nameAndTags,
                               SourceLineInfo const& _lineInfo):
        name( _nameAndTags.name.empty() ? makeDefaultName() : _nameAndTags.name ),
        className( _className ),
        lineInfo( _lineInfo )
    {
        StringRef originalTags = _nameAndTags.tags;
        // We need to reserve enough space to store all of the tags
        // (including optional hidden tag and filename tag)
        auto requiredSize = originalTags.size() + sizeOfExtraTags(_lineInfo.file);
        backingTags.reserve(requiredSize);

        // We cannot copy the tags directly, as we need to normalize
        // some tags, so that [.foo] is copied as [.][foo].
        size_t tagStart = 0;
        size_t tagEnd = 0;
        bool inTag = false;
        for (size_t idx = 0; idx < originalTags.size(); ++idx) {
            auto c = originalTags[idx];
            if (c == '[') {
                CATCH_ENFORCE(
                    !inTag,
                    "Found '[' inside a tag while registering test case '"
                        << _nameAndTags.name << "' at " << _lineInfo );

                inTag = true;
                tagStart = idx;
            }
            if (c == ']') {
                CATCH_ENFORCE(
                    inTag,
                    "Found unmatched ']' while registering test case '"
                        << _nameAndTags.name << "' at " << _lineInfo );

                inTag = false;
                tagEnd = idx;
                assert(tagStart < tagEnd);

                // We need to check the tag for special meanings, copy
                // it over to backing storage and actually reference the
                // backing storage in the saved tags
                StringRef tagStr = originalTags.substr(tagStart+1, tagEnd - tagStart - 1);
                CATCH_ENFORCE( !tagStr.empty(),
                               "Found an empty tag while registering test case '"
                                   << _nameAndTags.name << "' at "
                                   << _lineInfo );

                enforceNotReservedTag(tagStr, lineInfo);
                properties |= parseSpecialTag(tagStr);
                // When copying a tag to the backing storage, we need to
                // check if it is a merged hide tag, such as [.foo], and
                // if it is, we need to handle it as if it was [foo].
                if (tagStr.size() > 1 && tagStr[0] == '.') {
                    tagStr = tagStr.substr(1, tagStr.size() - 1);
                }
                // We skip over dealing with the [.] tag, as we will add
                // it later unconditionally and then sort and unique all
                // the tags.
                internalAppendTag(tagStr);
            }
        }
        CATCH_ENFORCE( !inTag,
                       "Found an unclosed tag while registering test case '"
                           << _nameAndTags.name << "' at " << _lineInfo );


        // Add [.] if relevant
        if (isHidden()) {
            internalAppendTag("."_sr);
        }

        // Sort and prepare tags
        std::sort(begin(tags), end(tags));
        tags.erase(std::unique(begin(tags), end(tags)),
                   end(tags));
    }

    bool TestCaseInfo::isHidden() const {
        return applies( properties & TestCaseProperties::IsHidden );
    }
    bool TestCaseInfo::throws() const {
        return applies( properties & TestCaseProperties::Throws );
    }
    bool TestCaseInfo::okToFail() const {
        return applies( properties & (TestCaseProperties::ShouldFail | TestCaseProperties::MayFail ) );
    }
    bool TestCaseInfo::expectedToFail() const {
        return applies( properties & (TestCaseProperties::ShouldFail) );
    }

    void TestCaseInfo::addFilenameTag() {
        std::string combined("#");
        combined += extractFilenamePart(lineInfo.file);
        internalAppendTag(combined);
    }

    std::string TestCaseInfo::tagsAsString() const {
        std::string ret;
        // '[' and ']' per tag
        std::size_t full_size = 2 * tags.size();
        for (const auto& tag : tags) {
            full_size += tag.original.size();
        }
        ret.reserve(full_size);
        for (const auto& tag : tags) {
            ret.push_back('[');
            ret += tag.original;
            ret.push_back(']');
        }

        return ret;
    }

    void TestCaseInfo::internalAppendTag(StringRef tagStr) {
        backingTags += '[';
        const auto backingStart = backingTags.size();
        backingTags += tagStr;
        const auto backingEnd = backingTags.size();
        backingTags += ']';
        tags.emplace_back(StringRef(backingTags.c_str() + backingStart, backingEnd - backingStart));
    }

    bool operator<( TestCaseInfo const& lhs, TestCaseInfo const& rhs ) {
        // We want to avoid redoing the string comparisons multiple times,
        // so we store the result of a three-way comparison before using
        // it in the actual comparison logic.
        const auto cmpName = lhs.name.compare( rhs.name );
        if ( cmpName != 0 ) {
            return cmpName < 0;
        }
        const auto cmpClassName = lhs.className.compare( rhs.className );
        if ( cmpClassName != 0 ) {
            return cmpClassName < 0;
        }
        return lhs.tags < rhs.tags;
    }

    TestCaseInfo const& TestCaseHandle::getTestCaseInfo() const {
        return *m_info;
    }

} // end namespace Catch



#include <algorithm>
#include <string>
#include <vector>
#include <ostream>

namespace Catch {

    TestSpec::Pattern::Pattern( std::string const& name )
    : m_name( name )
    {}

    TestSpec::Pattern::~Pattern() = default;

    std::string const& TestSpec::Pattern::name() const {
        return m_name;
    }


    TestSpec::NamePattern::NamePattern( std::string const& name, std::string const& filterString )
    : Pattern( filterString )
    , m_wildcardPattern( toLower( name ), CaseSensitive::No )
    {}

    bool TestSpec::NamePattern::matches( TestCaseInfo const& testCase ) const {
        return m_wildcardPattern.matches( testCase.name );
    }

    void TestSpec::NamePattern::serializeTo( std::ostream& out ) const {
        out << '"' << name() << '"';
    }


    TestSpec::TagPattern::TagPattern( std::string const& tag, std::string const& filterString )
    : Pattern( filterString )
    , m_tag( tag )
    {}

    bool TestSpec::TagPattern::matches( TestCaseInfo const& testCase ) const {
        return std::find( begin( testCase.tags ),
                          end( testCase.tags ),
                          Tag( m_tag ) ) != end( testCase.tags );
    }

    void TestSpec::TagPattern::serializeTo( std::ostream& out ) const {
        out << name();
    }

    bool TestSpec::Filter::matches( TestCaseInfo const& testCase ) const {
        bool should_use = !testCase.isHidden();
        for (auto const& pattern : m_required) {
            should_use = true;
            if (!pattern->matches(testCase)) {
                return false;
            }
        }
        for (auto const& pattern : m_forbidden) {
            if (pattern->matches(testCase)) {
                return false;
            }
        }
        return should_use;
    }

    void TestSpec::Filter::serializeTo( std::ostream& out ) const {
        bool first = true;
        for ( auto const& pattern : m_required ) {
            if ( !first ) {
                out << ' ';
            }
            out << *pattern;
            first = false;
        }
        for ( auto const& pattern : m_forbidden ) {
            if ( !first ) {
                out << ' ';
            }
            out << *pattern;
            first = false;
        }
    }


    std::string TestSpec::extractFilterName( Filter const& filter ) {
        Catch::ReusableStringStream sstr;
        sstr << filter;
        return sstr.str();
    }

    bool TestSpec::hasFilters() const {
        return !m_filters.empty();
    }

    bool TestSpec::matches( TestCaseInfo const& testCase ) const {
        return std::any_of( m_filters.begin(), m_filters.end(), [&]( Filter const& f ){ return f.matches( testCase ); } );
    }

    TestSpec::Matches TestSpec::matchesByFilter( std::vector<TestCaseHandle> const& testCases, IConfig const& config ) const {
        Matches matches;
        matches.reserve( m_filters.size() );
        for ( auto const& filter : m_filters ) {
            std::vector<TestCaseHandle const*> currentMatches;
            for ( auto const& test : testCases )
                if ( isThrowSafe( test, config ) &&
                     filter.matches( test.getTestCaseInfo() ) )
                    currentMatches.emplace_back( &test );
            matches.push_back(
                FilterMatch{ extractFilterName( filter ), currentMatches } );
        }
        return matches;
    }

    const TestSpec::vectorStrings& TestSpec::getInvalidSpecs() const {
        return m_invalidSpecs;
    }

    void TestSpec::serializeTo( std::ostream& out ) const {
        bool first = true;
        for ( auto const& filter : m_filters ) {
            if ( !first ) {
                out << ',';
            }
            out << filter;
            first = false;
        }
    }

}



#include <chrono>

namespace Catch {

    namespace {
        static auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
            return std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();
        }
    } // end unnamed namespace

    void Timer::start() {
       m_nanoseconds = getCurrentNanosecondsSinceEpoch();
    }
    auto Timer::getElapsedNanoseconds() const -> uint64_t {
        return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
    }
    auto Timer::getElapsedMicroseconds() const -> uint64_t {
        return getElapsedNanoseconds()/1000;
    }
    auto Timer::getElapsedMilliseconds() const -> unsigned int {
        return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
    }
    auto Timer::getElapsedSeconds() const -> double {
        return getElapsedMicroseconds()/1000000.0;
    }


} // namespace Catch




#include <cmath>
#include <iomanip>

namespace Catch {

namespace Detail {

    namespace {
        const int hexThreshold = 255;

        struct Endianness {
            enum Arch { Big, Little };

            static Arch which() {
                int one = 1;
                // If the lowest byte we read is non-zero, we can assume
                // that little endian format is used.
                auto value = *reinterpret_cast<char*>(&one);
                return value ? Little : Big;
            }
        };

        template<typename T>
        std::string fpToString(T value, int precision) {
            if (Catch::isnan(value)) {
                return "nan";
            }

            ReusableStringStream rss;
            rss << std::setprecision(precision)
                << std::fixed
                << value;
            std::string d = rss.str();
            std::size_t i = d.find_last_not_of('0');
            if (i != std::string::npos && i != d.size() - 1) {
                if (d[i] == '.')
                    i++;
                d = d.substr(0, i + 1);
            }
            return d;
        }
    } // end unnamed namespace

    std::string convertIntoString(StringRef string, bool escape_invisibles) {
        std::string ret;
        // This is enough for the "don't escape invisibles" case, and a good
        // lower bound on the "escape invisibles" case.
        ret.reserve(string.size() + 2);

        if (!escape_invisibles) {
            ret += '"';
            ret += string;
            ret += '"';
            return ret;
        }

        ret += '"';
        for (char c : string) {
            switch (c) {
            case '\r':
                ret.append("\\r");
                break;
            case '\n':
                ret.append("\\n");
                break;
            case '\t':
                ret.append("\\t");
                break;
            case '\f':
                ret.append("\\f");
                break;
            default:
                ret.push_back(c);
                break;
            }
        }
        ret += '"';

        return ret;
    }

    std::string convertIntoString(StringRef string) {
        return convertIntoString(string, getCurrentContext().getConfig()->showInvisibles());
    }

    std::string rawMemoryToString( const void *object, std::size_t size ) {
        // Reverse order for little endian architectures
        int i = 0, end = static_cast<int>( size ), inc = 1;
        if( Endianness::which() == Endianness::Little ) {
            i = end-1;
            end = inc = -1;
        }

        unsigned char const *bytes = static_cast<unsigned char const *>(object);
        ReusableStringStream rss;
        rss << "0x" << std::setfill('0') << std::hex;
        for( ; i != end; i += inc )
             rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
       return rss.str();
    }
} // end Detail namespace



//// ======================================================= ////
//
//   Out-of-line defs for full specialization of StringMaker
//
//// ======================================================= ////

std::string StringMaker<std::string>::convert(const std::string& str) {
    return Detail::convertIntoString( str );
}

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
std::string StringMaker<std::string_view>::convert(std::string_view str) {
    return Detail::convertIntoString( StringRef( str.data(), str.size() ) );
}
#endif

std::string StringMaker<char const*>::convert(char const* str) {
    if (str) {
        return Detail::convertIntoString( str );
    } else {
        return{ "{null string}" };
    }
}
std::string StringMaker<char*>::convert(char* str) {
    if (str) {
        return Detail::convertIntoString( str );
    } else {
        return{ "{null string}" };
    }
}

#ifdef CATCH_CONFIG_WCHAR
std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
    std::string s;
    s.reserve(wstr.size());
    for (auto c : wstr) {
        s += (c <= 0xff) ? static_cast<char>(c) : '?';
    }
    return ::Catch::Detail::stringify(s);
}

# ifdef CATCH_CONFIG_CPP17_STRING_VIEW
std::string StringMaker<std::wstring_view>::convert(std::wstring_view str) {
    return StringMaker<std::wstring>::convert(std::wstring(str));
}
# endif

std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
    if (str) {
        return ::Catch::Detail::stringify(std::wstring{ str });
    } else {
        return{ "{null string}" };
    }
}
std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
    if (str) {
        return ::Catch::Detail::stringify(std::wstring{ str });
    } else {
        return{ "{null string}" };
    }
}
#endif

#if defined(CATCH_CONFIG_CPP17_BYTE)
#include <cstddef>
std::string StringMaker<std::byte>::convert(std::byte value) {
    return ::Catch::Detail::stringify(std::to_integer<unsigned long long>(value));
}
#endif // defined(CATCH_CONFIG_CPP17_BYTE)

std::string StringMaker<int>::convert(int value) {
    return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long>::convert(long value) {
    return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long long>::convert(long long value) {
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold) {
        rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
}

std::string StringMaker<unsigned int>::convert(unsigned int value) {
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long>::convert(unsigned long value) {
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold) {
        rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
}

std::string StringMaker<signed char>::convert(signed char value) {
    if (value == '\r') {
        return "'\\r'";
    } else if (value == '\f') {
        return "'\\f'";
    } else if (value == '\n') {
        return "'\\n'";
    } else if (value == '\t') {
        return "'\\t'";
    } else if ('\0' <= value && value < ' ') {
        return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
    } else {
        char chstr[] = "' '";
        chstr[1] = value;
        return chstr;
    }
}
std::string StringMaker<char>::convert(char c) {
    return ::Catch::Detail::stringify(static_cast<signed char>(c));
}
std::string StringMaker<unsigned char>::convert(unsigned char c) {
    return ::Catch::Detail::stringify(static_cast<char>(c));
}

int StringMaker<float>::precision = 5;

std::string StringMaker<float>::convert(float value) {
    return Detail::fpToString(value, precision) + 'f';
}

int StringMaker<double>::precision = 10;

std::string StringMaker<double>::convert(double value) {
    return Detail::fpToString(value, precision);
}

} // end namespace Catch



namespace Catch {

    Counts Counts::operator - ( Counts const& other ) const {
        Counts diff;
        diff.passed = passed - other.passed;
        diff.failed = failed - other.failed;
        diff.failedButOk = failedButOk - other.failedButOk;
        diff.skipped = skipped - other.skipped;
        return diff;
    }

    Counts& Counts::operator += ( Counts const& other ) {
        passed += other.passed;
        failed += other.failed;
        failedButOk += other.failedButOk;
        skipped += other.skipped;
        return *this;
    }

    std::uint64_t Counts::total() const {
        return passed + failed + failedButOk + skipped;
    }
    bool Counts::allPassed() const {
        return failed == 0 && failedButOk == 0 && skipped == 0;
    }
    bool Counts::allOk() const {
        return failed == 0;
    }

    Totals Totals::operator - ( Totals const& other ) const {
        Totals diff;
        diff.assertions = assertions - other.assertions;
        diff.testCases = testCases - other.testCases;
        return diff;
    }

    Totals& Totals::operator += ( Totals const& other ) {
        assertions += other.assertions;
        testCases += other.testCases;
        return *this;
    }

    Totals Totals::delta( Totals const& prevTotals ) const {
        Totals diff = *this - prevTotals;
        if( diff.assertions.failed > 0 )
            ++diff.testCases.failed;
        else if( diff.assertions.failedButOk > 0 )
            ++diff.testCases.failedButOk;
        else if ( diff.assertions.skipped > 0 )
            ++ diff.testCases.skipped;
        else
            ++diff.testCases.passed;
        return diff;
    }

}




namespace Catch {
    namespace Detail {
        void registerTranslatorImpl(
            Detail::unique_ptr<IExceptionTranslator>&& translator ) {
            getMutableRegistryHub().registerTranslator(
                CATCH_MOVE( translator ) );
        }
    } // namespace Detail
} // namespace Catch


#include <ostream>

namespace Catch {

    Version::Version
        (   unsigned int _majorVersion,
            unsigned int _minorVersion,
            unsigned int _patchNumber,
            char const * const _branchName,
            unsigned int _buildNumber )
    :   majorVersion( _majorVersion ),
        minorVersion( _minorVersion ),
        patchNumber( _patchNumber ),
        branchName( _branchName ),
        buildNumber( _buildNumber )
    {}

    std::ostream& operator << ( std::ostream& os, Version const& version ) {
        os  << version.majorVersion << '.'
            << version.minorVersion << '.'
            << version.patchNumber;
        // branchName is never null -> 0th char is \0 if it is empty
        if (version.branchName[0]) {
            os << '-' << version.branchName
               << '.' << version.buildNumber;
        }
        return os;
    }

    Version const& libraryVersion() {
        static Version version( 3, 4, 0, "", 0 );
        return version;
    }

}




namespace Catch {

    const char* GeneratorException::what() const noexcept {
        return m_msg;
    }

} // end namespace Catch




namespace Catch {

    IGeneratorTracker::~IGeneratorTracker() = default;

namespace Generators {

namespace Detail {

    [[noreturn]]
    void throw_generator_exception(char const* msg) {
        Catch::throw_exception(GeneratorException{ msg });
    }
} // end namespace Detail

    GeneratorUntypedBase::~GeneratorUntypedBase() = default;

    IGeneratorTracker* acquireGeneratorTracker(StringRef generatorName, SourceLineInfo const& lineInfo ) {
        return getResultCapture().acquireGeneratorTracker( generatorName, lineInfo );
    }

    IGeneratorTracker* createGeneratorTracker( StringRef generatorName,
                                 SourceLineInfo lineInfo,
                                 GeneratorBasePtr&& generator ) {
        return getResultCapture().createGeneratorTracker(
            generatorName, lineInfo, CATCH_MOVE( generator ) );
    }

} // namespace Generators
} // namespace Catch





std::uint32_t Catch::Generators::Detail::getSeed() { return sharedRng()(); }




namespace Catch {
    IResultCapture::~IResultCapture() = default;
}




namespace Catch {
    IConfig::~IConfig() = default;
}




namespace Catch {
    IExceptionTranslator::~IExceptionTranslator() = default;
    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
}



#include <string>

namespace Catch {
    namespace Generators {

        bool GeneratorUntypedBase::countedNext() {
            auto ret = next();
            if ( ret ) {
                m_stringReprCache.clear();
                ++m_currentElementIndex;
            }
            return ret;
        }

        StringRef GeneratorUntypedBase::currentElementAsString() const {
            if ( m_stringReprCache.empty() ) {
                m_stringReprCache = stringifyImpl();
            }
            return m_stringReprCache;
        }

    } // namespace Generators
} // namespace Catch




namespace Catch {
    IRegistryHub::~IRegistryHub() = default;
    IMutableRegistryHub::~IMutableRegistryHub() = default;
}



#include <algorithm>
#include <cassert>
#include <iomanip>

namespace Catch {

    ReporterConfig::ReporterConfig(
        IConfig const* _fullConfig,
        Detail::unique_ptr<IStream> _stream,
        ColourMode colourMode,
        std::map<std::string, std::string> customOptions ):
        m_stream( CATCH_MOVE(_stream) ),
        m_fullConfig( _fullConfig ),
        m_colourMode( colourMode ),
        m_customOptions( CATCH_MOVE( customOptions ) ) {}

    Detail::unique_ptr<IStream> ReporterConfig::takeStream() && {
        assert( m_stream );
        return CATCH_MOVE( m_stream );
    }
    IConfig const * ReporterConfig::fullConfig() const { return m_fullConfig; }
    ColourMode ReporterConfig::colourMode() const { return m_colourMode; }

    std::map<std::string, std::string> const&
    ReporterConfig::customOptions() const {
        return m_customOptions;
    }

    ReporterConfig::~ReporterConfig() = default;

    AssertionStats::AssertionStats( AssertionResult const& _assertionResult,
                                    std::vector<MessageInfo> const& _infoMessages,
                                    Totals const& _totals )
    :   assertionResult( _assertionResult ),
        infoMessages( _infoMessages ),
        totals( _totals )
    {
        if( assertionResult.hasMessage() ) {
            // Copy message into messages list.
            // !TBD This should have been done earlier, somewhere
            MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
            builder.m_info.message = static_cast<std::string>(assertionResult.getMessage());

            infoMessages.push_back( CATCH_MOVE(builder.m_info) );
        }
    }

    SectionStats::SectionStats(  SectionInfo&& _sectionInfo,
                                 Counts const& _assertions,
                                 double _durationInSeconds,
                                 bool _missingAssertions )
    :   sectionInfo( CATCH_MOVE(_sectionInfo) ),
        assertions( _assertions ),
        durationInSeconds( _durationInSeconds ),
        missingAssertions( _missingAssertions )
    {}


    TestCaseStats::TestCaseStats(  TestCaseInfo const& _testInfo,
                                   Totals const& _totals,
                                   std::string&& _stdOut,
                                   std::string&& _stdErr,
                                   bool _aborting )
    : testInfo( &_testInfo ),
        totals( _totals ),
        stdOut( CATCH_MOVE(_stdOut) ),
        stdErr( CATCH_MOVE(_stdErr) ),
        aborting( _aborting )
    {}


    TestRunStats::TestRunStats(   TestRunInfo const& _runInfo,
                    Totals const& _totals,
                    bool _aborting )
    :   runInfo( _runInfo ),
        totals( _totals ),
        aborting( _aborting )
    {}

    IEventListener::~IEventListener() = default;

} // end namespace Catch




namespace Catch {
    IReporterFactory::~IReporterFactory() = default;
    EventListenerFactory::~EventListenerFactory() = default;
}




namespace Catch {
    ITestCaseRegistry::~ITestCaseRegistry() = default;
}



namespace Catch {

    AssertionHandler::AssertionHandler
        (   StringRef macroName,
            SourceLineInfo const& lineInfo,
            StringRef capturedExpression,
            ResultDisposition::Flags resultDisposition )
    :   m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition },
        m_resultCapture( getResultCapture() )
    {
        m_resultCapture.notifyAssertionStarted( m_assertionInfo );
    }

    void AssertionHandler::handleExpr( ITransientExpression const& expr ) {
        m_resultCapture.handleExpr( m_assertionInfo, expr, m_reaction );
    }
    void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef message) {
        m_resultCapture.handleMessage( m_assertionInfo, resultType, message, m_reaction );
    }

    auto AssertionHandler::allowThrows() const -> bool {
        return getCurrentContext().getConfig()->allowThrows();
    }

    void AssertionHandler::complete() {
        m_completed = true;
        if( m_reaction.shouldDebugBreak ) {

            // If you find your debugger stopping you here then go one level up on the
            // call-stack for the code that caused it (typically a failed assertion)

            // (To go back to the test and change execution, jump over the throw, next)
            CATCH_BREAK_INTO_DEBUGGER();
        }
        if (m_reaction.shouldThrow) {
            throw_test_failure_exception();
        }
        if ( m_reaction.shouldSkip ) {
            throw_test_skip_exception();
        }
    }

    void AssertionHandler::handleUnexpectedInflightException() {
        m_resultCapture.handleUnexpectedInflightException( m_assertionInfo, Catch::translateActiveException(), m_reaction );
    }

    void AssertionHandler::handleExceptionThrownAsExpected() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }
    void AssertionHandler::handleExceptionNotThrownAsExpected() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }

    void AssertionHandler::handleUnexpectedExceptionNotThrown() {
        m_resultCapture.handleUnexpectedExceptionNotThrown( m_assertionInfo, m_reaction );
    }

    void AssertionHandler::handleThrowingCallSkipped() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }

    // This is the overload that takes a string and infers the Equals matcher from it
    // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str ) {
        handleExceptionMatchExpr( handler, Matchers::Equals( str ) );
    }

} // namespace Catch




#include <algorithm>

namespace Catch {
    namespace Detail {

        bool CaseInsensitiveLess::operator()( StringRef lhs,
                                              StringRef rhs ) const {
            return std::lexicographical_compare(
                lhs.begin(), lhs.end(),
                rhs.begin(), rhs.end(),
                []( char l, char r ) { return toLower( l ) < toLower( r ); } );
        }

        bool
        CaseInsensitiveEqualTo::operator()( StringRef lhs,
                                            StringRef rhs ) const {
            return std::equal(
                lhs.begin(), lhs.end(),
                rhs.begin(), rhs.end(),
                []( char l, char r ) { return toLower( l ) == toLower( r ); } );
        }

    } // namespace Detail
} // namespace Catch




#include <algorithm>
#include <ostream>

namespace {
    bool isOptPrefix( char c ) {
        return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
               || c == '/'
#endif
            ;
    }

    std::string normaliseOpt( std::string const& optName ) {
#ifdef CATCH_PLATFORM_WINDOWS
        if ( optName[0] == '/' )
            return "-" + optName.substr( 1 );
        else
#endif
            return optName;
    }

} // namespace

namespace Catch {
    namespace Clara {
        namespace Detail {

            void TokenStream::loadBuffer() {
                m_tokenBuffer.clear();

                // Skip any empty strings
                while ( it != itEnd && it->empty() ) {
                    ++it;
                }

                if ( it != itEnd ) {
                    auto const& next = *it;
                    if ( isOptPrefix( next[0] ) ) {
                        auto delimiterPos = next.find_first_of( " :=" );
                        if ( delimiterPos != std::string::npos ) {
                            m_tokenBuffer.push_back(
                                { TokenType::Option,
                                  next.substr( 0, delimiterPos ) } );
                            m_tokenBuffer.push_back(
                                { TokenType::Argument,
                                  next.substr( delimiterPos + 1 ) } );
                        } else {
                            if ( next[1] != '-' && next.size() > 2 ) {
                                std::string opt = "- ";
                                for ( size_t i = 1; i < next.size(); ++i ) {
                                    opt[1] = next[i];
                                    m_tokenBuffer.push_back(
                                        { TokenType::Option, opt } );
                                }
                            } else {
                                m_tokenBuffer.push_back(
                                    { TokenType::Option, next } );
                            }
                        }
                    } else {
                        m_tokenBuffer.push_back(
                            { TokenType::Argument, next } );
                    }
                }
            }

            TokenStream::TokenStream( Args const& args ):
                TokenStream( args.m_args.begin(), args.m_args.end() ) {}

            TokenStream::TokenStream( Iterator it_, Iterator itEnd_ ):
                it( it_ ), itEnd( itEnd_ ) {
                loadBuffer();
            }

            TokenStream& TokenStream::operator++() {
                if ( m_tokenBuffer.size() >= 2 ) {
                    m_tokenBuffer.erase( m_tokenBuffer.begin() );
                } else {
                    if ( it != itEnd )
                        ++it;
                    loadBuffer();
                }
                return *this;
            }

            ParserResult convertInto( std::string const& source,
                                      std::string& target ) {
                target = source;
                return ParserResult::ok( ParseResultType::Matched );
            }

            ParserResult convertInto( std::string const& source,
                                      bool& target ) {
                std::string srcLC = toLower( source );

                if ( srcLC == "y" || srcLC == "1" || srcLC == "true" ||
                     srcLC == "yes" || srcLC == "on" ) {
                    target = true;
                } else if ( srcLC == "n" || srcLC == "0" || srcLC == "false" ||
                            srcLC == "no" || srcLC == "off" ) {
                    target = false;
                } else {
                    return ParserResult::runtimeError(
                        "Expected a boolean value but did not recognise: '" +
                        source + '\'' );
                }
                return ParserResult::ok( ParseResultType::Matched );
            }

            size_t ParserBase::cardinality() const { return 1; }

            InternalParseResult ParserBase::parse( Args const& args ) const {
                return parse( args.exeName(), TokenStream( args ) );
            }

            ParseState::ParseState( ParseResultType type,
                                    TokenStream const& remainingTokens ):
                m_type( type ), m_remainingTokens( remainingTokens ) {}

            ParserResult BoundFlagRef::setFlag( bool flag ) {
                m_ref = flag;
                return ParserResult::ok( ParseResultType::Matched );
            }

            ResultBase::~ResultBase() = default;

            bool BoundRef::isContainer() const { return false; }

            bool BoundRef::isFlag() const { return false; }

            bool BoundFlagRefBase::isFlag() const { return true; }

} // namespace Detail

        Detail::InternalParseResult Arg::parse(std::string const&,
                                               Detail::TokenStream const& tokens) const {
            auto validationResult = validate();
            if (!validationResult)
                return Detail::InternalParseResult(validationResult);

            auto remainingTokens = tokens;
            auto const& token = *remainingTokens;
            if (token.type != Detail::TokenType::Argument)
                return Detail::InternalParseResult::ok(Detail::ParseState(
                    ParseResultType::NoMatch, remainingTokens));

            assert(!m_ref->isFlag());
            auto valueRef =
                static_cast<Detail::BoundValueRefBase*>(m_ref.get());

            auto result = valueRef->setValue(remainingTokens->token);
            if (!result)
                return Detail::InternalParseResult(result);
            else
                return Detail::InternalParseResult::ok(Detail::ParseState(
                    ParseResultType::Matched, ++remainingTokens));
        }

        Opt::Opt(bool& ref) :
            ParserRefImpl(std::make_shared<Detail::BoundFlagRef>(ref)) {}

        std::vector<Detail::HelpColumns> Opt::getHelpColumns() const {
            std::ostringstream oss;
            bool first = true;
            for (auto const& opt : m_optNames) {
                if (first)
                    first = false;
                else
                    oss << ", ";
                oss << opt;
            }
            if (!m_hint.empty())
                oss << " <" << m_hint << '>';
            return { { oss.str(), m_description } };
        }

        bool Opt::isMatch(std::string const& optToken) const {
            auto normalisedToken = normaliseOpt(optToken);
            for (auto const& name : m_optNames) {
                if (normaliseOpt(name) == normalisedToken)
                    return true;
            }
            return false;
        }

        Detail::InternalParseResult Opt::parse(std::string const&,
                                       Detail::TokenStream const& tokens) const {
            auto validationResult = validate();
            if (!validationResult)
                return Detail::InternalParseResult(validationResult);

            auto remainingTokens = tokens;
            if (remainingTokens &&
                remainingTokens->type == Detail::TokenType::Option) {
                auto const& token = *remainingTokens;
                if (isMatch(token.token)) {
                    if (m_ref->isFlag()) {
                        auto flagRef =
                            static_cast<Detail::BoundFlagRefBase*>(
                                m_ref.get());
                        auto result = flagRef->setFlag(true);
                        if (!result)
                            return Detail::InternalParseResult(result);
                        if (result.value() ==
                            ParseResultType::ShortCircuitAll)
                            return Detail::InternalParseResult::ok(Detail::ParseState(
                                result.value(), remainingTokens));
                    } else {
                        auto valueRef =
                            static_cast<Detail::BoundValueRefBase*>(
                                m_ref.get());
                        ++remainingTokens;
                        if (!remainingTokens)
                            return Detail::InternalParseResult::runtimeError(
                                "Expected argument following " +
                                token.token);
                        auto const& argToken = *remainingTokens;
                        if (argToken.type != Detail::TokenType::Argument)
                            return Detail::InternalParseResult::runtimeError(
                                "Expected argument following " +
                                token.token);
                        const auto result = valueRef->setValue(argToken.token);
                        if (!result)
                            return Detail::InternalParseResult(result);
                        if (result.value() ==
                            ParseResultType::ShortCircuitAll)
                            return Detail::InternalParseResult::ok(Detail::ParseState(
                                result.value(), remainingTokens));
                    }
                    return Detail::InternalParseResult::ok(Detail::ParseState(
                        ParseResultType::Matched, ++remainingTokens));
                }
            }
            return Detail::InternalParseResult::ok(
                Detail::ParseState(ParseResultType::NoMatch, remainingTokens));
        }

        Detail::Result Opt::validate() const {
            if (m_optNames.empty())
                return Detail::Result::logicError("No options supplied to Opt");
            for (auto const& name : m_optNames) {
                if (name.empty())
                    return Detail::Result::logicError(
                        "Option name cannot be empty");
#ifdef CATCH_PLATFORM_WINDOWS
                if (name[0] != '-' && name[0] != '/')
                    return Detail::Result::logicError(
                        "Option name must begin with '-' or '/'");
#else
                if (name[0] != '-')
                    return Detail::Result::logicError(
                        "Option name must begin with '-'");
#endif
            }
            return ParserRefImpl::validate();
        }

        ExeName::ExeName() :
            m_name(std::make_shared<std::string>("<executable>")) {}

        ExeName::ExeName(std::string& ref) : ExeName() {
            m_ref = std::make_shared<Detail::BoundValueRef<std::string>>(ref);
        }

        Detail::InternalParseResult
            ExeName::parse(std::string const&,
                           Detail::TokenStream const& tokens) const {
            return Detail::InternalParseResult::ok(
                Detail::ParseState(ParseResultType::NoMatch, tokens));
        }

        ParserResult ExeName::set(std::string const& newName) {
            auto lastSlash = newName.find_last_of("\\/");
            auto filename = (lastSlash == std::string::npos)
                ? newName
                : newName.substr(lastSlash + 1);

            *m_name = filename;
            if (m_ref)
                return m_ref->setValue(filename);
            else
                return ParserResult::ok(ParseResultType::Matched);
        }




        Parser& Parser::operator|=( Parser const& other ) {
            m_options.insert( m_options.end(),
                              other.m_options.begin(),
                              other.m_options.end() );
            m_args.insert(
                m_args.end(), other.m_args.begin(), other.m_args.end() );
            return *this;
        }

        std::vector<Detail::HelpColumns> Parser::getHelpColumns() const {
            std::vector<Detail::HelpColumns> cols;
            for ( auto const& o : m_options ) {
                auto childCols = o.getHelpColumns();
                cols.insert( cols.end(), childCols.begin(), childCols.end() );
            }
            return cols;
        }

        void Parser::writeToStream( std::ostream& os ) const {
            if ( !m_exeName.name().empty() ) {
                os << "usage:\n"
                   << "  " << m_exeName.name() << ' ';
                bool required = true, first = true;
                for ( auto const& arg : m_args ) {
                    if ( first )
                        first = false;
                    else
                        os << ' ';
                    if ( arg.isOptional() && required ) {
                        os << '[';
                        required = false;
                    }
                    os << '<' << arg.hint() << '>';
                    if ( arg.cardinality() == 0 )
                        os << " ... ";
                }
                if ( !required )
                    os << ']';
                if ( !m_options.empty() )
                    os << " options";
                os << "\n\nwhere options are:\n";
            }

            auto rows = getHelpColumns();
            size_t consoleWidth = CATCH_CONFIG_CONSOLE_WIDTH;
            size_t optWidth = 0;
            for ( auto const& cols : rows )
                optWidth = ( std::max )( optWidth, cols.left.size() + 2 );

            optWidth = ( std::min )( optWidth, consoleWidth / 2 );

            for ( auto const& cols : rows ) {
                auto row = TextFlow::Column( cols.left )
                               .width( optWidth )
                               .indent( 2 ) +
                           TextFlow::Spacer( 4 ) +
                           TextFlow::Column( cols.right )
                               .width( consoleWidth - 7 - optWidth );
                os << row << '\n';
            }
        }

        Detail::Result Parser::validate() const {
            for ( auto const& opt : m_options ) {
                auto result = opt.validate();
                if ( !result )
                    return result;
            }
            for ( auto const& arg : m_args ) {
                auto result = arg.validate();
                if ( !result )
                    return result;
            }
            return Detail::Result::ok();
        }

        Detail::InternalParseResult
        Parser::parse( std::string const& exeName,
                       Detail::TokenStream const& tokens ) const {

            struct ParserInfo {
                ParserBase const* parser = nullptr;
                size_t count = 0;
            };
            std::vector<ParserInfo> parseInfos;
            parseInfos.reserve( m_options.size() + m_args.size() );
            for ( auto const& opt : m_options ) {
                parseInfos.push_back( { &opt, 0 } );
            }
            for ( auto const& arg : m_args ) {
                parseInfos.push_back( { &arg, 0 } );
            }

            m_exeName.set( exeName );

            auto result = Detail::InternalParseResult::ok(
                Detail::ParseState( ParseResultType::NoMatch, tokens ) );
            while ( result.value().remainingTokens() ) {
                bool tokenParsed = false;

                for ( auto& parseInfo : parseInfos ) {
                    if ( parseInfo.parser->cardinality() == 0 ||
                         parseInfo.count < parseInfo.parser->cardinality() ) {
                        result = parseInfo.parser->parse(
                            exeName, result.value().remainingTokens() );
                        if ( !result )
                            return result;
                        if ( result.value().type() !=
                             ParseResultType::NoMatch ) {
                            tokenParsed = true;
                            ++parseInfo.count;
                            break;
                        }
                    }
                }

                if ( result.value().type() == ParseResultType::ShortCircuitAll )
                    return result;
                if ( !tokenParsed )
                    return Detail::InternalParseResult::runtimeError(
                        "Unrecognised token: " +
                        result.value().remainingTokens()->token );
            }
            // !TBD Check missing required options
            return result;
        }

        Args::Args(int argc, char const* const* argv) :
            m_exeName(argv[0]), m_args(argv + 1, argv + argc) {}

        Args::Args(std::initializer_list<std::string> args) :
            m_exeName(*args.begin()),
            m_args(args.begin() + 1, args.end()) {}


        Help::Help( bool& showHelpFlag ):
            Opt( [&]( bool flag ) {
                showHelpFlag = flag;
                return ParserResult::ok( ParseResultType::ShortCircuitAll );
            } ) {
            static_cast<Opt&> ( *this )(
                "display usage information" )["-?"]["-h"]["--help"]
                .optional();
        }

    } // namespace Clara
} // namespace Catch




#include <fstream>
#include <string>

namespace Catch {

    Clara::Parser makeCommandLineParser( ConfigData& config ) {

        using namespace Clara;

        auto const setWarning = [&]( std::string const& warning ) {
            if ( warning == "NoAssertions" ) {
                config.warnings = static_cast<WarnAbout::What>(config.warnings | WarnAbout::NoAssertions);
                return ParserResult::ok( ParseResultType::Matched );
            } else if ( warning == "UnmatchedTestSpec" ) {
                config.warnings = static_cast<WarnAbout::What>(config.warnings | WarnAbout::UnmatchedTestSpec);
                return ParserResult::ok( ParseResultType::Matched );
            }

            return ParserResult ::runtimeError(
                "Unrecognised warning option: '" + warning + '\'' );
        };
        auto const loadTestNamesFromFile = [&]( std::string const& filename ) {
                std::ifstream f( filename.c_str() );
                if( !f.is_open() )
                    return ParserResult::runtimeError( "Unable to load input file: '" + filename + '\'' );

                std::string line;
                while( std::getline( f, line ) ) {
                    line = trim(line);
                    if( !line.empty() && !startsWith( line, '#' ) ) {
                        if( !startsWith( line, '"' ) )
                            line = '"' + line + '"';
                        config.testsOrTags.push_back( line );
                        config.testsOrTags.emplace_back( "," );
                    }
                }
                //Remove comma in the end
                if(!config.testsOrTags.empty())
                    config.testsOrTags.erase( config.testsOrTags.end()-1 );

                return ParserResult::ok( ParseResultType::Matched );
            };
        auto const setTestOrder = [&]( std::string const& order ) {
                if( startsWith( "declared", order ) )
                    config.runOrder = TestRunOrder::Declared;
                else if( startsWith( "lexical", order ) )
                    config.runOrder = TestRunOrder::LexicographicallySorted;
                else if( startsWith( "random", order ) )
                    config.runOrder = TestRunOrder::Randomized;
                else
                    return ParserResult::runtimeError( "Unrecognised ordering: '" + order + '\'' );
                return ParserResult::ok( ParseResultType::Matched );
            };
        auto const setRngSeed = [&]( std::string const& seed ) {
                if( seed == "time" ) {
                    config.rngSeed = generateRandomSeed(GenerateFrom::Time);
                    return ParserResult::ok(ParseResultType::Matched);
                } else if (seed == "random-device") {
                    config.rngSeed = generateRandomSeed(GenerateFrom::RandomDevice);
                    return ParserResult::ok(ParseResultType::Matched);
                }

                // TODO: ideally we should be parsing uint32_t directly
                //       fix this later when we add new parse overload
                auto parsedSeed = parseUInt( seed, 0 );
                if ( !parsedSeed ) {
                    return ParserResult::runtimeError( "Could not parse '" + seed + "' as seed" );
                }
                config.rngSeed = *parsedSeed;
                return ParserResult::ok( ParseResultType::Matched );
            };
        auto const setDefaultColourMode = [&]( std::string const& colourMode ) {
            Optional<ColourMode> maybeMode = Catch::Detail::stringToColourMode(toLower( colourMode ));
            if ( !maybeMode ) {
                return ParserResult::runtimeError(
                    "colour mode must be one of: default, ansi, win32, "
                    "or none. '" +
                    colourMode + "' is not recognised" );
            }
            auto mode = *maybeMode;
            if ( !isColourImplAvailable( mode ) ) {
                return ParserResult::runtimeError(
                    "colour mode '" + colourMode +
                    "' is not supported in this binary" );
            }
            config.defaultColourMode = mode;
            return ParserResult::ok( ParseResultType::Matched );
        };
        auto const setWaitForKeypress = [&]( std::string const& keypress ) {
                auto keypressLc = toLower( keypress );
                if (keypressLc == "never")
                    config.waitForKeypress = WaitForKeypress::Never;
                else if( keypressLc == "start" )
                    config.waitForKeypress = WaitForKeypress::BeforeStart;
                else if( keypressLc == "exit" )
                    config.waitForKeypress = WaitForKeypress::BeforeExit;
                else if( keypressLc == "both" )
                    config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
                else
                    return ParserResult::runtimeError( "keypress argument must be one of: never, start, exit or both. '" + keypress + "' not recognised" );
            return ParserResult::ok( ParseResultType::Matched );
            };
        auto const setVerbosity = [&]( std::string const& verbosity ) {
            auto lcVerbosity = toLower( verbosity );
            if( lcVerbosity == "quiet" )
                config.verbosity = Verbosity::Quiet;
            else if( lcVerbosity == "normal" )
                config.verbosity = Verbosity::Normal;
            else if( lcVerbosity == "high" )
                config.verbosity = Verbosity::High;
            else
                return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + '\'' );
            return ParserResult::ok( ParseResultType::Matched );
        };
        auto const setReporter = [&]( std::string const& userReporterSpec ) {
            if ( userReporterSpec.empty() ) {
                return ParserResult::runtimeError( "Received empty reporter spec." );
            }

            Optional<ReporterSpec> parsed =
                parseReporterSpec( userReporterSpec );
            if ( !parsed ) {
                return ParserResult::runtimeError(
                    "Could not parse reporter spec '" + userReporterSpec +
                    "'" );
            }

            auto const& reporterSpec = *parsed;

            auto const& factories =
                getRegistryHub().getReporterRegistry().getFactories();
            auto result = factories.find( reporterSpec.name() );

            if ( result == factories.end() ) {
                return ParserResult::runtimeError(
                    "Unrecognized reporter, '" + reporterSpec.name() +
                    "'. Check available with --list-reporters" );
            }


            const bool hadOutputFile = reporterSpec.outputFile().some();
            config.reporterSpecifications.push_back( CATCH_MOVE( *parsed ) );
            // It would be enough to check this only once at the very end, but
            // there is  not a place where we could call this check, so do it
            // every time it could fail. For valid inputs, this is still called
            // at most once.
            if (!hadOutputFile) {
                int n_reporters_without_file = 0;
                for (auto const& spec : config.reporterSpecifications) {
                    if (spec.outputFile().none()) {
                        n_reporters_without_file++;
                    }
                }
                if (n_reporters_without_file > 1) {
                    return ParserResult::runtimeError( "Only one reporter may have unspecified output file." );
                }
            }

            return ParserResult::ok( ParseResultType::Matched );
        };
        auto const setShardCount = [&]( std::string const& shardCount ) {
            auto parsedCount = parseUInt( shardCount );
            if ( !parsedCount ) {
                return ParserResult::runtimeError(
                    "Could not parse '" + shardCount + "' as shard count" );
            }
            if ( *parsedCount == 0 ) {
                return ParserResult::runtimeError(
                    "Shard count must be positive" );
            }
            config.shardCount = *parsedCount;
            return ParserResult::ok( ParseResultType::Matched );
        };

        auto const setShardIndex = [&](std::string const& shardIndex) {
            auto parsedIndex = parseUInt( shardIndex );
            if ( !parsedIndex ) {
                return ParserResult::runtimeError(
                    "Could not parse '" + shardIndex + "' as shard index" );
            }
            config.shardIndex = *parsedIndex;
            return ParserResult::ok( ParseResultType::Matched );
        };

        auto cli
            = ExeName( config.processName )
            | Help( config.showHelp )
            | Opt( config.showSuccessfulTests )
                ["-s"]["--success"]
                ( "include successful tests in output" )
            | Opt( config.shouldDebugBreak )
                ["-b"]["--break"]
                ( "break into debugger on failure" )
            | Opt( config.noThrow )
                ["-e"]["--nothrow"]
                ( "skip exception tests" )
            | Opt( config.showInvisibles )
                ["-i"]["--invisibles"]
                ( "show invisibles (tabs, newlines)" )
            | Opt( config.defaultOutputFilename, "filename" )
                ["-o"]["--out"]
                ( "default output filename" )
            | Opt( accept_many, setReporter, "name[::key=value]*" )
                ["-r"]["--reporter"]
                ( "reporter to use (defaults to console)" )
            | Opt( config.name, "name" )
                ["-n"]["--name"]
                ( "suite name" )
            | Opt( [&]( bool ){ config.abortAfter = 1; } )
                ["-a"]["--abort"]
                ( "abort at first failure" )
            | Opt( [&]( int x ){ config.abortAfter = x; }, "no. failures" )
                ["-x"]["--abortx"]
                ( "abort after x failures" )
            | Opt( accept_many, setWarning, "warning name" )
                ["-w"]["--warn"]
                ( "enable warnings" )
            | Opt( [&]( bool flag ) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no" )
                ["-d"]["--durations"]
                ( "show test durations" )
            | Opt( config.minDuration, "seconds" )
                ["-D"]["--min-duration"]
                ( "show test durations for tests taking at least the given number of seconds" )
            | Opt( loadTestNamesFromFile, "filename" )
                ["-f"]["--input-file"]
                ( "load test names to run from a file" )
            | Opt( config.filenamesAsTags )
                ["-#"]["--filenames-as-tags"]
                ( "adds a tag for the filename" )
            | Opt( config.sectionsToRun, "section name" )
                ["-c"]["--section"]
                ( "specify section to run" )
            | Opt( setVerbosity, "quiet|normal|high" )
                ["-v"]["--verbosity"]
                ( "set output verbosity" )
            | Opt( config.listTests )
                ["--list-tests"]
                ( "list all/matching test cases" )
            | Opt( config.listTags )
                ["--list-tags"]
                ( "list all/matching tags" )
            | Opt( config.listReporters )
                ["--list-reporters"]
                ( "list all available reporters" )
            | Opt( config.listListeners )
                ["--list-listeners"]
                ( "list all listeners" )
            | Opt( setTestOrder, "decl|lex|rand" )
                ["--order"]
                ( "test case order (defaults to decl)" )
            | Opt( setRngSeed, "'time'|'random-device'|number" )
                ["--rng-seed"]
                ( "set a specific seed for random numbers" )
            | Opt( setDefaultColourMode, "ansi|win32|none|default" )
                ["--colour-mode"]
                ( "what color mode should be used as default" )
            | Opt( config.libIdentify )
                ["--libidentify"]
                ( "report name and version according to libidentify standard" )
            | Opt( setWaitForKeypress, "never|start|exit|both" )
                ["--wait-for-keypress"]
                ( "waits for a keypress before exiting" )
            | Opt( config.skipBenchmarks)
                ["--skip-benchmarks"]
                ( "disable running benchmarks")
            | Opt( config.benchmarkSamples, "samples" )
                ["--benchmark-samples"]
                ( "number of samples to collect (default: 100)" )
            | Opt( config.benchmarkResamples, "resamples" )
                ["--benchmark-resamples"]
                ( "number of resamples for the bootstrap (default: 100000)" )
            | Opt( config.benchmarkConfidenceInterval, "confidence interval" )
                ["--benchmark-confidence-interval"]
                ( "confidence interval for the bootstrap (between 0 and 1, default: 0.95)" )
            | Opt( config.benchmarkNoAnalysis )
                ["--benchmark-no-analysis"]
                ( "perform only measurements; do not perform any analysis" )
            | Opt( config.benchmarkWarmupTime, "benchmarkWarmupTime" )
                ["--benchmark-warmup-time"]
                ( "amount of time in milliseconds spent on warming up each test (default: 100)" )
            | Opt( setShardCount, "shard count" )
                ["--shard-count"]
                ( "split the tests to execute into this many groups" )
            | Opt( setShardIndex, "shard index" )
                ["--shard-index"]
                ( "index of the group of tests to execute (see --shard-count)" ) |
            Opt( config.allowZeroTests )
                ["--allow-running-no-tests"]
                ( "Treat 'No tests run' as a success" )
            | Arg( config.testsOrTags, "test name|pattern|tags" )
                ( "which test or tests to use" );

        return cli;
    }

} // end namespace Catch


#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif



#include <cassert>
#include <ostream>
#include <utility>

namespace Catch {

    ColourImpl::~ColourImpl() = default;

    ColourImpl::ColourGuard ColourImpl::guardColour( Colour::Code colourCode ) {
        return ColourGuard(colourCode, this );
    }

    void ColourImpl::ColourGuard::engageImpl( std::ostream& stream ) {
        assert( &stream == &m_colourImpl->m_stream->stream() &&
                "Engaging colour guard for different stream than used by the "
                "parent colour implementation" );
        static_cast<void>( stream );

        m_engaged = true;
        m_colourImpl->use( m_code );
    }

    ColourImpl::ColourGuard::ColourGuard( Colour::Code code,
                                          ColourImpl const* colour ):
        m_colourImpl( colour ), m_code( code ) {
    }
    ColourImpl::ColourGuard::ColourGuard( ColourGuard&& rhs ) noexcept:
        m_colourImpl( rhs.m_colourImpl ),
        m_code( rhs.m_code ),
        m_engaged( rhs.m_engaged ) {
        rhs.m_engaged = false;
    }
    ColourImpl::ColourGuard&
    ColourImpl::ColourGuard::operator=( ColourGuard&& rhs ) noexcept {
        using std::swap;
        swap( m_colourImpl, rhs.m_colourImpl );
        swap( m_code, rhs.m_code );
        swap( m_engaged, rhs.m_engaged );

        return *this;
    }
    ColourImpl::ColourGuard::~ColourGuard() {
        if ( m_engaged ) {
            m_colourImpl->use( Colour::None );
        }
    }

    ColourImpl::ColourGuard&
    ColourImpl::ColourGuard::engage( std::ostream& stream ) & {
        engageImpl( stream );
        return *this;
    }

    ColourImpl::ColourGuard&&
    ColourImpl::ColourGuard::engage( std::ostream& stream ) && {
        engageImpl( stream );
        return CATCH_MOVE(*this);
    }

    namespace {
        //! A do-nothing implementation of colour, used as fallback for unknown
        //! platforms, and when the user asks to deactivate all colours.
        class NoColourImpl final : public ColourImpl {
        public:
            NoColourImpl( IStream* stream ): ColourImpl( stream ) {}

        private:
            void use( Colour::Code ) const override {}
        };
    } // namespace


} // namespace Catch


#if defined ( CATCH_CONFIG_COLOUR_WIN32 ) /////////////////////////////////////////

namespace Catch {
namespace {

    class Win32ColourImpl final : public ColourImpl {
    public:
        Win32ColourImpl(IStream* stream):
            ColourImpl(stream) {
            CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
            GetConsoleScreenBufferInfo( GetStdHandle( STD_OUTPUT_HANDLE ),
                                        &csbiInfo );
            originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
            originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
        }

        static bool useImplementationForStream(IStream const& stream) {
            // Win32 text colour APIs can only be used on console streams
            // We cannot check that the output hasn't been redirected,
            // so we just check that the original stream is console stream.
            return stream.isConsole();
        }

    private:
        void use( Colour::Code _colourCode ) const override {
            switch( _colourCode ) {
                case Colour::None:      return setTextAttribute( originalForegroundAttributes );
                case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
                case Colour::Red:       return setTextAttribute( FOREGROUND_RED );
                case Colour::Green:     return setTextAttribute( FOREGROUND_GREEN );
                case Colour::Blue:      return setTextAttribute( FOREGROUND_BLUE );
                case Colour::Cyan:      return setTextAttribute( FOREGROUND_BLUE | FOREGROUND_GREEN );
                case Colour::Yellow:    return setTextAttribute( FOREGROUND_RED | FOREGROUND_GREEN );
                case Colour::Grey:      return setTextAttribute( 0 );

                case Colour::LightGrey:     return setTextAttribute( FOREGROUND_INTENSITY );
                case Colour::BrightRed:     return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED );
                case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
                case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
                case Colour::BrightYellow:  return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN );

                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );

                default:
                    CATCH_ERROR( "Unknown colour requested" );
            }
        }

        void setTextAttribute( WORD _textAttribute ) const {
            SetConsoleTextAttribute( GetStdHandle( STD_OUTPUT_HANDLE ),
                                     _textAttribute |
                                         originalBackgroundAttributes );
        }
        WORD originalForegroundAttributes;
        WORD originalBackgroundAttributes;
    };

} // end anon namespace
} // end namespace Catch

#endif // Windows/ ANSI/ None


#if defined( CATCH_PLATFORM_LINUX ) || defined( CATCH_PLATFORM_MAC )
#    define CATCH_INTERNAL_HAS_ISATTY
#    include <unistd.h>
#endif

namespace Catch {
namespace {

    class ANSIColourImpl final : public ColourImpl {
    public:
        ANSIColourImpl( IStream* stream ): ColourImpl( stream ) {}

        static bool useImplementationForStream(IStream const& stream) {
            // This is kinda messy due to trying to support a bunch of
            // different platforms at once.
            // The basic idea is that if we are asked to do autodetection (as
            // opposed to being told to use posixy colours outright), then we
            // only want to use the colours if we are writing to console.
            // However, console might be redirected, so we make an attempt at
            // checking for that on platforms where we know how to do that.
            bool useColour = stream.isConsole();
#if defined( CATCH_INTERNAL_HAS_ISATTY ) && \
    !( defined( __DJGPP__ ) && defined( __STRICT_ANSI__ ) )
            ErrnoGuard _; // for isatty
            useColour = useColour && isatty( STDOUT_FILENO );
#    endif
#    if defined( CATCH_PLATFORM_MAC ) || defined( CATCH_PLATFORM_IPHONE )
            useColour = useColour && !isDebuggerActive();
#    endif

            return useColour;
        }

    private:
        void use( Colour::Code _colourCode ) const override {
            auto setColour = [&out =
                                  m_stream->stream()]( char const* escapeCode ) {
                // The escape sequence must be flushed to console, otherwise
                // if stdin and stderr are intermixed, we'd get accidentally
                // coloured output.
                out << '\033' << escapeCode << std::flush;
            };
            switch( _colourCode ) {
                case Colour::None:
                case Colour::White:     return setColour( "[0m" );
                case Colour::Red:       return setColour( "[0;31m" );
                case Colour::Green:     return setColour( "[0;32m" );
                case Colour::Blue:      return setColour( "[0;34m" );
                case Colour::Cyan:      return setColour( "[0;36m" );
                case Colour::Yellow:    return setColour( "[0;33m" );
                case Colour::Grey:      return setColour( "[1;30m" );

                case Colour::LightGrey:     return setColour( "[0;37m" );
                case Colour::BrightRed:     return setColour( "[1;31m" );
                case Colour::BrightGreen:   return setColour( "[1;32m" );
                case Colour::BrightWhite:   return setColour( "[1;37m" );
                case Colour::BrightYellow:  return setColour( "[1;33m" );

                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
                default: CATCH_INTERNAL_ERROR( "Unknown colour requested" );
            }
        }
    };

} // end anon namespace
} // end namespace Catch

namespace Catch {

    Detail::unique_ptr<ColourImpl> makeColourImpl( ColourMode implSelection,
                                                   IStream* stream ) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
        if ( implSelection == ColourMode::Win32 ) {
            return Detail::make_unique<Win32ColourImpl>( stream );
        }
#endif
        if ( implSelection == ColourMode::ANSI ) {
            return Detail::make_unique<ANSIColourImpl>( stream );
        }
        if ( implSelection == ColourMode::None ) {
            return Detail::make_unique<NoColourImpl>( stream );
        }

        if ( implSelection == ColourMode::PlatformDefault) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
            if ( Win32ColourImpl::useImplementationForStream( *stream ) ) {
                return Detail::make_unique<Win32ColourImpl>( stream );
            }
#endif
            if ( ANSIColourImpl::useImplementationForStream( *stream ) ) {
                return Detail::make_unique<ANSIColourImpl>( stream );
            }
            return Detail::make_unique<NoColourImpl>( stream );
        }

        CATCH_ERROR( "Could not create colour impl for selection " << static_cast<int>(implSelection) );
    }

    bool isColourImplAvailable( ColourMode colourSelection ) {
        switch ( colourSelection ) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
        case ColourMode::Win32:
#endif
        case ColourMode::ANSI:
        case ColourMode::None:
        case ColourMode::PlatformDefault:
            return true;
        default:
            return false;
        }
    }


} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif




namespace Catch {

    Context* Context::currentContext = nullptr;

    void cleanUpContext() {
        delete Context::currentContext;
        Context::currentContext = nullptr;
    }
    void Context::createContext() {
        currentContext = new Context();
    }

    Context& getCurrentMutableContext() {
        if ( !Context::currentContext ) { Context::createContext(); }
        // NOLINTNEXTLINE(clang-analyzer-core.uninitialized.UndefReturn)
        return *Context::currentContext;
    }

    void Context::setResultCapture( IResultCapture* resultCapture ) {
        m_resultCapture = resultCapture;
    }

    void Context::setConfig( IConfig const* config ) { m_config = config; }

    SimplePcg32& sharedRng() {
        static SimplePcg32 s_rng;
        return s_rng;
    }

}





#include <ostream>

#if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
#include <android/log.h>

    namespace Catch {
        void writeToDebugConsole( std::string const& text ) {
            __android_log_write( ANDROID_LOG_DEBUG, "Catch", text.c_str() );
        }
    }

#elif defined(CATCH_PLATFORM_WINDOWS)

    namespace Catch {
        void writeToDebugConsole( std::string const& text ) {
            ::OutputDebugStringA( text.c_str() );
        }
    }

#else

    namespace Catch {
        void writeToDebugConsole( std::string const& text ) {
            // !TBD: Need a version for Mac/ XCode and other IDEs
            Catch::cout() << text;
        }
    }

#endif // Platform



#if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)

#  include <cassert>
#  include <sys/types.h>
#  include <unistd.h>
#  include <cstddef>
#  include <ostream>

#ifdef __apple_build_version__
    // These headers will only compile with AppleClang (XCode)
    // For other compilers (Clang, GCC, ... ) we need to exclude them
#  include <sys/sysctl.h>
#endif

    namespace Catch {
        #ifdef __apple_build_version__
        // The following function is taken directly from the following technical note:
        // https://developer.apple.com/library/archive/qa/qa1361/_index.html

        // Returns true if the current process is being debugged (either
        // running under the debugger or has a debugger attached post facto).
        bool isDebuggerActive(){
            int                 mib[4];
            struct kinfo_proc   info;
            std::size_t         size;

            // Initialize the flags so that, if sysctl fails for some bizarre
            // reason, we get a predictable result.

            info.kp_proc.p_flag = 0;

            // Initialize mib, which tells sysctl the info we want, in this case
            // we're looking for information about a specific process ID.

            mib[0] = CTL_KERN;
            mib[1] = KERN_PROC;
            mib[2] = KERN_PROC_PID;
            mib[3] = getpid();

            // Call sysctl.

            size = sizeof(info);
            if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
                Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n\n" << std::flush;
                return false;
            }

            // We're being debugged if the P_TRACED flag is set.

            return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
        }
        #else
        bool isDebuggerActive() {
            // We need to find another way to determine this for non-appleclang compilers on macOS
            return false;
        }
        #endif
    } // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)
    #include <fstream>
    #include <string>

    namespace Catch{
        // The standard POSIX way of detecting a debugger is to attempt to
        // ptrace() the process, but this needs to be done from a child and not
        // this process itself to still allow attaching to this process later
        // if wanted, so is rather heavy. Under Linux we have the PID of the
        // "debugger" (which doesn't need to be gdb, of course, it could also
        // be strace, for example) in /proc/$PID/status, so just get it from
        // there instead.
        bool isDebuggerActive(){
            // Libstdc++ has a bug, where std::ifstream sets errno to 0
            // This way our users can properly assert over errno values
            ErrnoGuard guard;
            std::ifstream in("/proc/self/status");
            for( std::string line; std::getline(in, line); ) {
                static const int PREFIX_LEN = 11;
                if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
                    // We're traced if the PID is not 0 and no other PID starts
                    // with 0 digit, so it's enough to check for just a single
                    // character.
                    return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
                }
            }

            return false;
        }
    } // namespace Catch
#elif defined(_MSC_VER)
    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
    namespace Catch {
        bool isDebuggerActive() {
            return IsDebuggerPresent() != 0;
        }
    }
#elif defined(__MINGW32__)
    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
    namespace Catch {
        bool isDebuggerActive() {
            return IsDebuggerPresent() != 0;
        }
    }
#else
    namespace Catch {
       bool isDebuggerActive() { return false; }
    }
#endif // Platform




namespace Catch {

    ITransientExpression::~ITransientExpression() = default;

    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs ) {
        if( lhs.size() + rhs.size() < 40 &&
                lhs.find('\n') == std::string::npos &&
                rhs.find('\n') == std::string::npos )
            os << lhs << ' ' << op << ' ' << rhs;
        else
            os << lhs << '\n' << op << '\n' << rhs;
    }
}



#include <stdexcept>


namespace Catch {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
    [[noreturn]]
    void throw_exception(std::exception const& e) {
        Catch::cerr() << "Catch will terminate because it needed to throw an exception.\n"
                      << "The message was: " << e.what() << '\n';
        std::terminate();
    }
#endif

    [[noreturn]]
    void throw_logic_error(std::string const& msg) {
        throw_exception(std::logic_error(msg));
    }

    [[noreturn]]
    void throw_domain_error(std::string const& msg) {
        throw_exception(std::domain_error(msg));
    }

    [[noreturn]]
    void throw_runtime_error(std::string const& msg) {
        throw_exception(std::runtime_error(msg));
    }



} // namespace Catch;



#include <cassert>

namespace Catch {

    IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() = default;

    namespace Detail {

        namespace {
            // Extracts the actual name part of an enum instance
            // In other words, it returns the Blue part of Bikeshed::Colour::Blue
            StringRef extractInstanceName(StringRef enumInstance) {
                // Find last occurrence of ":"
                size_t name_start = enumInstance.size();
                while (name_start > 0 && enumInstance[name_start - 1] != ':') {
                    --name_start;
                }
                return enumInstance.substr(name_start, enumInstance.size() - name_start);
            }
        }

        std::vector<StringRef> parseEnums( StringRef enums ) {
            auto enumValues = splitStringRef( enums, ',' );
            std::vector<StringRef> parsed;
            parsed.reserve( enumValues.size() );
            for( auto const& enumValue : enumValues ) {
                parsed.push_back(trim(extractInstanceName(enumValue)));
            }
            return parsed;
        }

        EnumInfo::~EnumInfo() {}

        StringRef EnumInfo::lookup( int value ) const {
            for( auto const& valueToName : m_values ) {
                if( valueToName.first == value )
                    return valueToName.second;
            }
            return "{** unexpected enum value **}"_sr;
        }

        Catch::Detail::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
            auto enumInfo = Catch::Detail::make_unique<EnumInfo>();
            enumInfo->m_name = enumName;
            enumInfo->m_values.reserve( values.size() );

            const auto valueNames = Catch::Detail::parseEnums( allValueNames );
            assert( valueNames.size() == values.size() );
            std::size_t i = 0;
            for( auto value : values )
                enumInfo->m_values.emplace_back(value, valueNames[i++]);

            return enumInfo;
        }

        EnumInfo const& EnumValuesRegistry::registerEnum( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
            m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
            return *m_enumInfos.back();
        }

    } // Detail
} // Catch





#include <cerrno>

namespace Catch {
        ErrnoGuard::ErrnoGuard():m_oldErrno(errno){}
        ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
}



#include <exception>

namespace Catch {

    namespace {
        static std::string tryTranslators(
            std::vector<
                Detail::unique_ptr<IExceptionTranslator const>> const& translators ) {
            if ( translators.empty() ) {
                std::rethrow_exception( std::current_exception() );
            } else {
                return translators[0]->translate( translators.begin() + 1,
                                                  translators.end() );
            }
        }

    }

    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
    }

    void ExceptionTranslatorRegistry::registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator ) {
        m_translators.push_back( CATCH_MOVE( translator ) );
    }

#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    std::string ExceptionTranslatorRegistry::translateActiveException() const {
        // Compiling a mixed mode project with MSVC means that CLR
        // exceptions will be caught in (...) as well. However, these do
        // do not fill-in std::current_exception and thus lead to crash
        // when attempting rethrow.
        // /EHa switch also causes structured exceptions to be caught
        // here, but they fill-in current_exception properly, so
        // at worst the output should be a little weird, instead of
        // causing a crash.
        if ( std::current_exception() == nullptr ) {
            return "Non C++ exception. Possibly a CLR exception.";
        }

        // First we try user-registered translators. If none of them can
        // handle the exception, it will be rethrown handled by our defaults.
        try {
            return tryTranslators(m_translators);
        }
        // To avoid having to handle TFE explicitly everywhere, we just
        // rethrow it so that it goes back up the caller.
        catch( TestFailureException& ) {
            std::rethrow_exception(std::current_exception());
        }
        catch( TestSkipException& ) {
            std::rethrow_exception(std::current_exception());
        }
        catch( std::exception const& ex ) {
            return ex.what();
        }
        catch( std::string const& msg ) {
            return msg;
        }
        catch( const char* msg ) {
            return msg;
        }
        catch(...) {
            return "Unknown exception";
        }
    }

#else // ^^ Exceptions are enabled // Exceptions are disabled vv
    std::string ExceptionTranslatorRegistry::translateActiveException() const {
        CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
    }
#endif

}



/** \file
 * This file provides platform specific implementations of FatalConditionHandler
 *
 * This means that there is a lot of conditional compilation, and platform
 * specific code. Currently, Catch2 supports a dummy handler (if no
 * handler is desired), and 2 platform specific handlers:
 *  * Windows' SEH
 *  * POSIX signals
 *
 * Consequently, various pieces of code below are compiled if either of
 * the platform specific handlers is enabled, or if none of them are
 * enabled. It is assumed that both cannot be enabled at the same time,
 * and doing so should cause a compilation error.
 *
 * If another platform specific handler is added, the compile guards
 * below will need to be updated taking these assumptions into account.
 */



#include <algorithm>

#if !defined( CATCH_CONFIG_WINDOWS_SEH ) && !defined( CATCH_CONFIG_POSIX_SIGNALS )

namespace Catch {

    // If neither SEH nor signal handling is required, the handler impls
    // do not have to do anything, and can be empty.
    void FatalConditionHandler::engage_platform() {}
    void FatalConditionHandler::disengage_platform() noexcept {}
    FatalConditionHandler::FatalConditionHandler() = default;
    FatalConditionHandler::~FatalConditionHandler() = default;

} // end namespace Catch

#endif // !CATCH_CONFIG_WINDOWS_SEH && !CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH ) && defined( CATCH_CONFIG_POSIX_SIGNALS )
#error "Inconsistent configuration: Windows' SEH handling and POSIX signals cannot be enabled at the same time"
#endif // CATCH_CONFIG_WINDOWS_SEH && CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH ) || defined( CATCH_CONFIG_POSIX_SIGNALS )

namespace {
    //! Signals fatal error message to the run context
    void reportFatal( char const * const message ) {
        Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition( message );
    }

    //! Minimal size Catch2 needs for its own fatal error handling.
    //! Picked empirically, so it might not be sufficient on all
    //! platforms, and for all configurations.
    constexpr std::size_t minStackSizeForErrors = 32 * 1024;
} // end unnamed namespace

#endif // CATCH_CONFIG_WINDOWS_SEH || CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH )

namespace Catch {

    struct SignalDefs { DWORD id; const char* name; };

    // There is no 1-1 mapping between signals and windows exceptions.
    // Windows can easily distinguish between SO and SigSegV,
    // but SigInt, SigTerm, etc are handled differently.
    static SignalDefs signalDefs[] = {
        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
    };

    static LONG CALLBACK topLevelExceptionFilter(PEXCEPTION_POINTERS ExceptionInfo) {
        for (auto const& def : signalDefs) {
            if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
                reportFatal(def.name);
            }
        }
        // If its not an exception we care about, pass it along.
        // This stops us from eating debugger breaks etc.
        return EXCEPTION_CONTINUE_SEARCH;
    }

    // Since we do not support multiple instantiations, we put these
    // into global variables and rely on cleaning them up in outlined
    // constructors/destructors
    static LPTOP_LEVEL_EXCEPTION_FILTER previousTopLevelExceptionFilter = nullptr;


    // For MSVC, we reserve part of the stack memory for handling
    // memory overflow structured exception.
    FatalConditionHandler::FatalConditionHandler() {
        ULONG guaranteeSize = static_cast<ULONG>(minStackSizeForErrors);
        if (!SetThreadStackGuarantee(&guaranteeSize)) {
            // We do not want to fully error out, because needing
            // the stack reserve should be rare enough anyway.
            Catch::cerr()
                << "Failed to reserve piece of stack."
                << " Stack overflows will not be reported successfully.";
        }
    }

    // We do not attempt to unset the stack guarantee, because
    // Windows does not support lowering the stack size guarantee.
    FatalConditionHandler::~FatalConditionHandler() = default;


    void FatalConditionHandler::engage_platform() {
        // Register as a the top level exception filter.
        previousTopLevelExceptionFilter = SetUnhandledExceptionFilter(topLevelExceptionFilter);
    }

    void FatalConditionHandler::disengage_platform() noexcept {
        if (SetUnhandledExceptionFilter(previousTopLevelExceptionFilter) != topLevelExceptionFilter) {
            Catch::cerr()
                << "Unexpected SEH unhandled exception filter on disengage."
                << " The filter was restored, but might be rolled back unexpectedly.";
        }
        previousTopLevelExceptionFilter = nullptr;
    }

} // end namespace Catch

#endif // CATCH_CONFIG_WINDOWS_SEH

#if defined( CATCH_CONFIG_POSIX_SIGNALS )

#include <signal.h>

namespace Catch {

    struct SignalDefs {
        int id;
        const char* name;
    };

    static SignalDefs signalDefs[] = {
        { SIGINT,  "SIGINT - Terminal interrupt signal" },
        { SIGILL,  "SIGILL - Illegal instruction signal" },
        { SIGFPE,  "SIGFPE - Floating point error signal" },
        { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
        { SIGTERM, "SIGTERM - Termination request signal" },
        { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
    };

// Older GCCs trigger -Wmissing-field-initializers for T foo = {}
// which is zero initialization, but not explicit. We want to avoid
// that.
#if defined(__GNUC__)
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif

    static char* altStackMem = nullptr;
    static std::size_t altStackSize = 0;
    static stack_t oldSigStack{};
    static struct sigaction oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)]{};

    static void restorePreviousSignalHandlers() noexcept {
        // We set signal handlers back to the previous ones. Hopefully
        // nobody overwrote them in the meantime, and doesn't expect
        // their signal handlers to live past ours given that they
        // installed them after ours..
        for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
            sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
        }
        // Return the old stack
        sigaltstack(&oldSigStack, nullptr);
    }

    static void handleSignal( int sig ) {
        char const * name = "<unknown signal>";
        for (auto const& def : signalDefs) {
            if (sig == def.id) {
                name = def.name;
                break;
            }
        }
        // We need to restore previous signal handlers and let them do
        // their thing, so that the users can have the debugger break
        // when a signal is raised, and so on.
        restorePreviousSignalHandlers();
        reportFatal( name );
        raise( sig );
    }

    FatalConditionHandler::FatalConditionHandler() {
        assert(!altStackMem && "Cannot initialize POSIX signal handler when one already exists");
        if (altStackSize == 0) {
            altStackSize = std::max(static_cast<size_t>(SIGSTKSZ), minStackSizeForErrors);
        }
        altStackMem = new char[altStackSize]();
    }

    FatalConditionHandler::~FatalConditionHandler() {
        delete[] altStackMem;
        // We signal that another instance can be constructed by zeroing
        // out the pointer.
        altStackMem = nullptr;
    }

    void FatalConditionHandler::engage_platform() {
        stack_t sigStack;
        sigStack.ss_sp = altStackMem;
        sigStack.ss_size = altStackSize;
        sigStack.ss_flags = 0;
        sigaltstack(&sigStack, &oldSigStack);
        struct sigaction sa = { };

        sa.sa_handler = handleSignal;
        sa.sa_flags = SA_ONSTACK;
        for (std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i) {
            sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
        }
    }

#if defined(__GNUC__)
#    pragma GCC diagnostic pop
#endif


    void FatalConditionHandler::disengage_platform() noexcept {
        restorePreviousSignalHandlers();
    }

} // end namespace Catch

#endif // CATCH_CONFIG_POSIX_SIGNALS




#include <cstring>

namespace Catch {
    namespace Detail {

        uint32_t convertToBits(float f) {
            static_assert(sizeof(float) == sizeof(uint32_t), "Important ULP matcher assumption violated");
            uint32_t i;
            std::memcpy(&i, &f, sizeof(f));
            return i;
        }

        uint64_t convertToBits(double d) {
            static_assert(sizeof(double) == sizeof(uint64_t), "Important ULP matcher assumption violated");
            uint64_t i;
            std::memcpy(&i, &d, sizeof(d));
            return i;
        }

    } // end namespace Detail
} // end namespace Catch






#include <cstdlib>

namespace Catch {
    namespace Detail {

#if !defined (CATCH_CONFIG_GETENV)
        char const* getEnv( char const* ) { return nullptr; }
#else

        char const* getEnv( char const* varName ) {
#    if defined( _MSC_VER )
#        pragma warning( push )
#        pragma warning( disable : 4996 ) // use getenv_s instead of getenv
#    endif

            return std::getenv( varName );

#    if defined( _MSC_VER )
#        pragma warning( pop )
#    endif
        }
#endif
} // namespace Detail
} // namespace Catch




#include <cstdio>
#include <fstream>
#include <sstream>
#include <vector>

namespace Catch {

    Catch::IStream::~IStream() = default;

namespace Detail {
    namespace {
        template<typename WriterF, std::size_t bufferSize=256>
        class StreamBufImpl final : public std::streambuf {
            char data[bufferSize];
            WriterF m_writer;

        public:
            StreamBufImpl() {
                setp( data, data + sizeof(data) );
            }

            ~StreamBufImpl() noexcept override {
                StreamBufImpl::sync();
            }

        private:
            int overflow( int c ) override {
                sync();

                if( c != EOF ) {
                    if( pbase() == epptr() )
                        m_writer( std::string( 1, static_cast<char>( c ) ) );
                    else
                        sputc( static_cast<char>( c ) );
                }
                return 0;
            }

            int sync() override {
                if( pbase() != pptr() ) {
                    m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
                    setp( pbase(), epptr() );
                }
                return 0;
            }
        };

        ///////////////////////////////////////////////////////////////////////////

        struct OutputDebugWriter {

            void operator()( std::string const& str ) {
                if ( !str.empty() ) {
                    writeToDebugConsole( str );
                }
            }
        };

        ///////////////////////////////////////////////////////////////////////////

        class FileStream final : public IStream {
            std::ofstream m_ofs;
        public:
            FileStream( std::string const& filename ) {
                m_ofs.open( filename.c_str() );
                CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << '\'' );
                m_ofs << std::unitbuf;
            }
            ~FileStream() override = default;
        public: // IStream
            std::ostream& stream() override {
                return m_ofs;
            }
        };

        ///////////////////////////////////////////////////////////////////////////

        class CoutStream final : public IStream {
            std::ostream m_os;
        public:
            // Store the streambuf from cout up-front because
            // cout may get redirected when running tests
            CoutStream() : m_os( Catch::cout().rdbuf() ) {}
            ~CoutStream() override = default;

        public: // IStream
            std::ostream& stream() override { return m_os; }
            bool isConsole() const override { return true; }
        };

        class CerrStream : public IStream {
            std::ostream m_os;

        public:
            // Store the streambuf from cerr up-front because
            // cout may get redirected when running tests
            CerrStream(): m_os( Catch::cerr().rdbuf() ) {}
            ~CerrStream() override = default;

        public: // IStream
            std::ostream& stream() override { return m_os; }
            bool isConsole() const override { return true; }
        };

        ///////////////////////////////////////////////////////////////////////////

        class DebugOutStream final : public IStream {
            Detail::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
            std::ostream m_os;
        public:
            DebugOutStream()
            :   m_streamBuf( Detail::make_unique<StreamBufImpl<OutputDebugWriter>>() ),
                m_os( m_streamBuf.get() )
            {}

            ~DebugOutStream() override = default;

        public: // IStream
            std::ostream& stream() override { return m_os; }
        };

    } // unnamed namespace
} // namespace Detail

    ///////////////////////////////////////////////////////////////////////////

    auto makeStream( std::string const& filename ) -> Detail::unique_ptr<IStream> {
        if ( filename.empty() || filename == "-" ) {
            return Detail::make_unique<Detail::CoutStream>();
        }
        if( filename[0] == '%' ) {
            if ( filename == "%debug" ) {
                return Detail::make_unique<Detail::DebugOutStream>();
            } else if ( filename == "%stderr" ) {
                return Detail::make_unique<Detail::CerrStream>();
            } else if ( filename == "%stdout" ) {
                return Detail::make_unique<Detail::CoutStream>();
            } else {
                CATCH_ERROR( "Unrecognised stream: '" << filename << '\'' );
            }
        }
        return Detail::make_unique<Detail::FileStream>( filename );
    }

}




namespace Catch {

    auto operator << (std::ostream& os, LazyExpression const& lazyExpr) -> std::ostream& {
        if (lazyExpr.m_isNegated)
            os << '!';

        if (lazyExpr) {
            if (lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression())
                os << '(' << *lazyExpr.m_transientExpression << ')';
            else
                os << *lazyExpr.m_transientExpression;
        } else {
            os << "{** error - unchecked empty expression requested **}";
        }
        return os;
    }

} // namespace Catch




#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>

namespace Catch {

    LeakDetector::LeakDetector() {
        int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
        flag |= _CRTDBG_LEAK_CHECK_DF;
        flag |= _CRTDBG_ALLOC_MEM_DF;
        _CrtSetDbgFlag(flag);
        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
        // Change this to leaking allocation's number to break there
        _CrtSetBreakAlloc(-1);
    }
}

#else // ^^ Windows crt debug heap enabled // Windows crt debug heap disabled vv

    Catch::LeakDetector::LeakDetector() {}

#endif // CATCH_CONFIG_WINDOWS_CRTDBG

Catch::LeakDetector::~LeakDetector() {
    Catch::cleanUp();
}





namespace Catch {
    namespace {

        void listTests(IEventListener& reporter, IConfig const& config) {
            auto const& testSpec = config.testSpec();
            auto matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
            reporter.listTests(matchedTestCases);
        }

        void listTags(IEventListener& reporter, IConfig const& config) {
            auto const& testSpec = config.testSpec();
            std::vector<TestCaseHandle> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);

            std::map<StringRef, TagInfo, Detail::CaseInsensitiveLess> tagCounts;
            for (auto const& testCase : matchedTestCases) {
                for (auto const& tagName : testCase.getTestCaseInfo().tags) {
                    auto it = tagCounts.find(tagName.original);
                    if (it == tagCounts.end())
                        it = tagCounts.insert(std::make_pair(tagName.original, TagInfo())).first;
                    it->second.add(tagName.original);
                }
            }

            std::vector<TagInfo> infos; infos.reserve(tagCounts.size());
            for (auto& tagc : tagCounts) {
                infos.push_back(CATCH_MOVE(tagc.second));
            }

            reporter.listTags(infos);
        }

        void listReporters(IEventListener& reporter) {
            std::vector<ReporterDescription> descriptions;

            auto const& factories = getRegistryHub().getReporterRegistry().getFactories();
            descriptions.reserve(factories.size());
            for (auto const& fac : factories) {
                descriptions.push_back({ fac.first, fac.second->getDescription() });
            }

            reporter.listReporters(descriptions);
        }

        void listListeners(IEventListener& reporter) {
            std::vector<ListenerDescription> descriptions;

            auto const& factories =
                getRegistryHub().getReporterRegistry().getListeners();
            descriptions.reserve( factories.size() );
            for ( auto const& fac : factories ) {
                descriptions.push_back( { fac->getName(), fac->getDescription() } );
            }

            reporter.listListeners( descriptions );
        }

    } // end anonymous namespace

    void TagInfo::add( StringRef spelling ) {
        ++count;
        spellings.insert( spelling );
    }

    std::string TagInfo::all() const {
        // 2 per tag for brackets '[' and ']'
        size_t size =  spellings.size() * 2;
        for (auto const& spelling : spellings) {
            size += spelling.size();
        }

        std::string out; out.reserve(size);
        for (auto const& spelling : spellings) {
            out += '[';
            out += spelling;
            out += ']';
        }
        return out;
    }

    bool list( IEventListener& reporter, Config const& config ) {
        bool listed = false;
        if (config.listTests()) {
            listed = true;
            listTests(reporter, config);
        }
        if (config.listTags()) {
            listed = true;
            listTags(reporter, config);
        }
        if (config.listReporters()) {
            listed = true;
            listReporters(reporter);
        }
        if ( config.listListeners() ) {
            listed = true;
            listListeners( reporter );
        }
        return listed;
    }

} // end namespace Catch



namespace Catch {
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
    static LeakDetector leakDetector;
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
}

// Allow users of amalgamated .cpp file to remove our main and provide their own.
#if !defined(CATCH_AMALGAMATED_CUSTOM_MAIN)

#if defined(CATCH_CONFIG_WCHAR) && defined(CATCH_PLATFORM_WINDOWS) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
// Standard C/C++ Win32 Unicode wmain entry point
extern "C" int __cdecl wmain (int argc, wchar_t * argv[], wchar_t * []) {
#else
// Standard C/C++ main entry point
int main (int argc, char * argv[]) {
#endif

    // We want to force the linker not to discard the global variable
    // and its constructor, as it (optionally) registers leak detector
    (void)&Catch::leakDetector;

    return Catch::Session().run( argc, argv );
}

#endif // !defined(CATCH_AMALGAMATED_CUSTOM_MAIN




namespace Catch {

    MessageInfo::MessageInfo(   StringRef _macroName,
                                SourceLineInfo const& _lineInfo,
                                ResultWas::OfType _type )
    :   macroName( _macroName ),
        lineInfo( _lineInfo ),
        type( _type ),
        sequence( ++globalCount )
    {}

    // This may need protecting if threading support is added
    unsigned int MessageInfo::globalCount = 0;

} // end namespace Catch



#include <cstdio>
#include <cstring>
#include <sstream>

#if defined(CATCH_CONFIG_NEW_CAPTURE)
    #if defined(_MSC_VER)
    #include <io.h>      //_dup and _dup2
    #define dup _dup
    #define dup2 _dup2
    #define fileno _fileno
    #else
    #include <unistd.h>  // dup and dup2
    #endif
#endif


namespace Catch {

    RedirectedStream::RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream )
    :   m_originalStream( originalStream ),
        m_redirectionStream( redirectionStream ),
        m_prevBuf( m_originalStream.rdbuf() )
    {
        m_originalStream.rdbuf( m_redirectionStream.rdbuf() );
    }

    RedirectedStream::~RedirectedStream() {
        m_originalStream.rdbuf( m_prevBuf );
    }

    RedirectedStdOut::RedirectedStdOut() : m_cout( Catch::cout(), m_rss.get() ) {}
    auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }

    RedirectedStdErr::RedirectedStdErr()
    :   m_cerr( Catch::cerr(), m_rss.get() ),
        m_clog( Catch::clog(), m_rss.get() )
    {}
    auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }

    RedirectedStreams::RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr)
    :   m_redirectedCout(redirectedCout),
        m_redirectedCerr(redirectedCerr)
    {}

    RedirectedStreams::~RedirectedStreams() {
        m_redirectedCout += m_redirectedStdOut.str();
        m_redirectedCerr += m_redirectedStdErr.str();
    }

#if defined(CATCH_CONFIG_NEW_CAPTURE)

#if defined(_MSC_VER)
    TempFile::TempFile() {
        if (tmpnam_s(m_buffer)) {
            CATCH_RUNTIME_ERROR("Could not get a temp filename");
        }
        if (fopen_s(&m_file, m_buffer, "w+")) {
            char buffer[100];
            if (strerror_s(buffer, errno)) {
                CATCH_RUNTIME_ERROR("Could not translate errno to a string");
            }
            CATCH_RUNTIME_ERROR("Could not open the temp file: '" << m_buffer << "' because: " << buffer);
        }
    }
#else
    TempFile::TempFile() {
        m_file = std::tmpfile();
        if (!m_file) {
            CATCH_RUNTIME_ERROR("Could not create a temp file.");
        }
    }

#endif

    TempFile::~TempFile() {
         // TBD: What to do about errors here?
         std::fclose(m_file);
         // We manually create the file on Windows only, on Linux
         // it will be autodeleted
#if defined(_MSC_VER)
         std::remove(m_buffer);
#endif
    }


    FILE* TempFile::getFile() {
        return m_file;
    }

    std::string TempFile::getContents() {
        std::stringstream sstr;
        char buffer[100] = {};
        std::rewind(m_file);
        while (std::fgets(buffer, sizeof(buffer), m_file)) {
            sstr << buffer;
        }
        return sstr.str();
    }

    OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
        m_originalStdout(dup(1)),
        m_originalStderr(dup(2)),
        m_stdoutDest(stdout_dest),
        m_stderrDest(stderr_dest) {
        dup2(fileno(m_stdoutFile.getFile()), 1);
        dup2(fileno(m_stderrFile.getFile()), 2);
    }

    OutputRedirect::~OutputRedirect() {
        Catch::cout() << std::flush;
        fflush(stdout);
        // Since we support overriding these streams, we flush cerr
        // even though std::cerr is unbuffered
        Catch::cerr() << std::flush;
        Catch::clog() << std::flush;
        fflush(stderr);

        dup2(m_originalStdout, 1);
        dup2(m_originalStderr, 2);

        m_stdoutDest += m_stdoutFile.getContents();
        m_stderrDest += m_stderrFile.getContents();
    }

#endif // CATCH_CONFIG_NEW_CAPTURE

} // namespace Catch

#if defined(CATCH_CONFIG_NEW_CAPTURE)
    #if defined(_MSC_VER)
    #undef dup
    #undef dup2
    #undef fileno
    #endif
#endif




#include <limits>
#include <stdexcept>

namespace Catch {

    Optional<unsigned int> parseUInt(std::string const& input, int base) {
        auto trimmed = trim( input );
        // std::stoull is annoying and accepts numbers starting with '-',
        // it just negates them into unsigned int
        if ( trimmed.empty() || trimmed[0] == '-' ) {
            return {};
        }

        CATCH_TRY {
            size_t pos = 0;
            const auto ret = std::stoull( trimmed, &pos, base );

            // We did not consume the whole input, so there is an issue
            // This can be bunch of different stuff, like multiple numbers
            // in the input, or invalid digits/characters and so on. Either
            // way, we do not want to return the partially parsed result.
            if ( pos != trimmed.size() ) {
                return {};
            }
            // Too large
            if ( ret > std::numeric_limits<unsigned int>::max() ) {
                return {};
            }
            return static_cast<unsigned int>(ret);
        }
        CATCH_CATCH_ANON( std::invalid_argument const& ) {
            // no conversion could be performed
        }
        CATCH_CATCH_ANON( std::out_of_range const& ) {
            // the input does not fit into an unsigned long long
        }
        return {};
    }

} // namespace Catch




#include <cmath>

namespace Catch {

#if !defined(CATCH_CONFIG_POLYFILL_ISNAN)
    bool isnan(float f) {
        return std::isnan(f);
    }
    bool isnan(double d) {
        return std::isnan(d);
    }
#else
    // For now we only use this for embarcadero
    bool isnan(float f) {
        return std::_isnan(f);
    }
    bool isnan(double d) {
        return std::_isnan(d);
    }
#endif

} // end namespace Catch



namespace Catch {

namespace {

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4146) // we negate uint32 during the rotate
#endif
        // Safe rotr implementation thanks to John Regehr
        uint32_t rotate_right(uint32_t val, uint32_t count) {
            const uint32_t mask = 31;
            count &= mask;
            return (val >> count) | (val << (-count & mask));
        }

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

}


    SimplePcg32::SimplePcg32(result_type seed_) {
        seed(seed_);
    }


    void SimplePcg32::seed(result_type seed_) {
        m_state = 0;
        (*this)();
        m_state += seed_;
        (*this)();
    }

    void SimplePcg32::discard(uint64_t skip) {
        // We could implement this to run in O(log n) steps, but this
        // should suffice for our use case.
        for (uint64_t s = 0; s < skip; ++s) {
            static_cast<void>((*this)());
        }
    }

    SimplePcg32::result_type SimplePcg32::operator()() {
        // prepare the output value
        const uint32_t xorshifted = static_cast<uint32_t>(((m_state >> 18u) ^ m_state) >> 27u);
        const auto output = rotate_right(xorshifted, m_state >> 59u);

        // advance state
        m_state = m_state * 6364136223846793005ULL + s_inc;

        return output;
    }

    bool operator==(SimplePcg32 const& lhs, SimplePcg32 const& rhs) {
        return lhs.m_state == rhs.m_state;
    }

    bool operator!=(SimplePcg32 const& lhs, SimplePcg32 const& rhs) {
        return lhs.m_state != rhs.m_state;
    }
}





#include <ctime>
#include <random>

namespace Catch {

    std::uint32_t generateRandomSeed( GenerateFrom from ) {
        switch ( from ) {
        case GenerateFrom::Time:
            return static_cast<std::uint32_t>( std::time( nullptr ) );

        case GenerateFrom::Default:
        case GenerateFrom::RandomDevice:
            // In theory, a platform could have random_device that returns just
            // 16 bits. That is still some randomness, so we don't care too much
            return static_cast<std::uint32_t>( std::random_device{}() );

        default:
            CATCH_ERROR("Unknown generation method");
        }
    }

} // end namespace Catch




namespace Catch {
    struct ReporterRegistry::ReporterRegistryImpl {
        std::vector<Detail::unique_ptr<EventListenerFactory>> listeners;
        std::map<std::string, IReporterFactoryPtr, Detail::CaseInsensitiveLess>
            factories;
    };

    ReporterRegistry::ReporterRegistry():
        m_impl( Detail::make_unique<ReporterRegistryImpl>() ) {
        // Because it is impossible to move out of initializer list,
        // we have to add the elements manually
        m_impl->factories["Automake"] =
            Detail::make_unique<ReporterFactory<AutomakeReporter>>();
        m_impl->factories["compact"] =
            Detail::make_unique<ReporterFactory<CompactReporter>>();
        m_impl->factories["console"] =
            Detail::make_unique<ReporterFactory<ConsoleReporter>>();
        m_impl->factories["JUnit"] =
            Detail::make_unique<ReporterFactory<JunitReporter>>();
        m_impl->factories["SonarQube"] =
            Detail::make_unique<ReporterFactory<SonarQubeReporter>>();
        m_impl->factories["TAP"] =
            Detail::make_unique<ReporterFactory<TAPReporter>>();
        m_impl->factories["TeamCity"] =
            Detail::make_unique<ReporterFactory<TeamCityReporter>>();
        m_impl->factories["XML"] =
            Detail::make_unique<ReporterFactory<XmlReporter>>();
    }

    ReporterRegistry::~ReporterRegistry() = default;

    IEventListenerPtr
    ReporterRegistry::create( std::string const& name,
                              ReporterConfig&& config ) const {
        auto it = m_impl->factories.find( name );
        if ( it == m_impl->factories.end() ) return nullptr;
        return it->second->create( CATCH_MOVE( config ) );
    }

    void ReporterRegistry::registerReporter( std::string const& name,
                                             IReporterFactoryPtr factory ) {
        CATCH_ENFORCE( name.find( "::" ) == name.npos,
                       "'::' is not allowed in reporter name: '" + name +
                           '\'' );
        auto ret = m_impl->factories.emplace( name, CATCH_MOVE( factory ) );
        CATCH_ENFORCE( ret.second,
                       "reporter using '" + name +
                           "' as name was already registered" );
    }
    void ReporterRegistry::registerListener(
        Detail::unique_ptr<EventListenerFactory> factory ) {
        m_impl->listeners.push_back( CATCH_MOVE( factory ) );
    }

    std::map<std::string,
             IReporterFactoryPtr,
             Detail::CaseInsensitiveLess> const&
    ReporterRegistry::getFactories() const {
        return m_impl->factories;
    }

    std::vector<Detail::unique_ptr<EventListenerFactory>> const&
    ReporterRegistry::getListeners() const {
        return m_impl->listeners;
    }
} // namespace Catch





#include <algorithm>

namespace Catch {

    namespace {
        struct kvPair {
            StringRef key, value;
        };

        kvPair splitKVPair(StringRef kvString) {
            auto splitPos = static_cast<size_t>(
                std::find( kvString.begin(), kvString.end(), '=' ) -
                kvString.begin() );

            return { kvString.substr( 0, splitPos ),
                     kvString.substr( splitPos + 1, kvString.size() ) };
        }
    }

    namespace Detail {
        std::vector<std::string> splitReporterSpec( StringRef reporterSpec ) {
            static constexpr auto separator = "::";
            static constexpr size_t separatorSize = 2;

            size_t separatorPos = 0;
            auto findNextSeparator = [&reporterSpec]( size_t startPos ) {
                static_assert(
                    separatorSize == 2,
                    "The code below currently assumes 2 char separator" );

                auto currentPos = startPos;
                do {
                    while ( currentPos < reporterSpec.size() &&
                            reporterSpec[currentPos] != separator[0] ) {
                        ++currentPos;
                    }
                    if ( currentPos + 1 < reporterSpec.size() &&
                         reporterSpec[currentPos + 1] == separator[1] ) {
                        return currentPos;
                    }
                    ++currentPos;
                } while ( currentPos < reporterSpec.size() );

                return static_cast<size_t>( -1 );
            };

            std::vector<std::string> parts;

            while ( separatorPos < reporterSpec.size() ) {
                const auto nextSeparator = findNextSeparator( separatorPos );
                parts.push_back( static_cast<std::string>( reporterSpec.substr(
                    separatorPos, nextSeparator - separatorPos ) ) );

                if ( nextSeparator == static_cast<size_t>( -1 ) ) {
                    break;
                }
                separatorPos = nextSeparator + separatorSize;
            }

            // Handle a separator at the end.
            // This is not a valid spec, but we want to do validation in a
            // centralized place
            if ( separatorPos == reporterSpec.size() ) {
                parts.emplace_back();
            }

            return parts;
        }

        Optional<ColourMode> stringToColourMode( StringRef colourMode ) {
            if ( colourMode == "default" ) {
                return ColourMode::PlatformDefault;
            } else if ( colourMode == "ansi" ) {
                return ColourMode::ANSI;
            } else if ( colourMode == "win32" ) {
                return ColourMode::Win32;
            } else if ( colourMode == "none" ) {
                return ColourMode::None;
            } else {
                return {};
            }
        }
    } // namespace Detail


    bool operator==( ReporterSpec const& lhs, ReporterSpec const& rhs ) {
        return lhs.m_name == rhs.m_name &&
               lhs.m_outputFileName == rhs.m_outputFileName &&
               lhs.m_colourMode == rhs.m_colourMode &&
               lhs.m_customOptions == rhs.m_customOptions;
    }

    Optional<ReporterSpec> parseReporterSpec( StringRef reporterSpec ) {
        auto parts = Detail::splitReporterSpec( reporterSpec );

        assert( parts.size() > 0 && "Split should never return empty vector" );

        std::map<std::string, std::string> kvPairs;
        Optional<std::string> outputFileName;
        Optional<ColourMode> colourMode;

        // First part is always reporter name, so we skip it
        for ( size_t i = 1; i < parts.size(); ++i ) {
            auto kv = splitKVPair( parts[i] );
            auto key = kv.key, value = kv.value;

            if ( key.empty() || value.empty() ) {
                return {};
            } else if ( key[0] == 'X' ) {
                // This is a reporter-specific option, we don't check these
                // apart from basic sanity checks
                if ( key.size() == 1 ) {
                    return {};
                }

                auto ret = kvPairs.emplace( std::string(kv.key), std::string(kv.value) );
                if ( !ret.second ) {
                    // Duplicated key. We might want to handle this differently,
                    // e.g. by overwriting the existing value?
                    return {};
                }
            } else if ( key == "out" ) {
                // Duplicated key
                if ( outputFileName ) {
                    return {};
                }
                outputFileName = static_cast<std::string>( value );
            } else if ( key == "colour-mode" ) {
                // Duplicated key
                if ( colourMode ) {
                    return {};
                }
                colourMode = Detail::stringToColourMode( value );
                // Parsing failed
                if ( !colourMode ) {
                    return {};
                }
            } else {
                // Unrecognized option
                return {};
            }
        }

        return ReporterSpec{ CATCH_MOVE( parts[0] ),
                             CATCH_MOVE( outputFileName ),
                             CATCH_MOVE( colourMode ),
                             CATCH_MOVE( kvPairs ) };
    }

ReporterSpec::ReporterSpec(
        std::string name,
        Optional<std::string> outputFileName,
        Optional<ColourMode> colourMode,
        std::map<std::string, std::string> customOptions ):
        m_name( CATCH_MOVE( name ) ),
        m_outputFileName( CATCH_MOVE( outputFileName ) ),
        m_colourMode( CATCH_MOVE( colourMode ) ),
        m_customOptions( CATCH_MOVE( customOptions ) ) {}

} // namespace Catch



namespace Catch {

    bool isOk( ResultWas::OfType resultType ) {
        return ( resultType & ResultWas::FailureBit ) == 0;
    }
    bool isJustInfo( int flags ) {
        return flags == ResultWas::Info;
    }

    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
        return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
    }

    bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
    bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }

} // end namespace Catch



#include <cstdio>
#include <sstream>
#include <vector>

namespace Catch {

    // This class encapsulates the idea of a pool of ostringstreams that can be reused.
    struct StringStreams {
        std::vector<Detail::unique_ptr<std::ostringstream>> m_streams;
        std::vector<std::size_t> m_unused;
        std::ostringstream m_referenceStream; // Used for copy state/ flags from

        auto add() -> std::size_t {
            if( m_unused.empty() ) {
                m_streams.push_back( Detail::make_unique<std::ostringstream>() );
                return m_streams.size()-1;
            }
            else {
                auto index = m_unused.back();
                m_unused.pop_back();
                return index;
            }
        }

        void release( std::size_t index ) {
            m_streams[index]->copyfmt( m_referenceStream ); // Restore initial flags and other state
            m_unused.push_back(index);
        }
    };

    ReusableStringStream::ReusableStringStream()
    :   m_index( Singleton<StringStreams>::getMutable().add() ),
        m_oss( Singleton<StringStreams>::getMutable().m_streams[m_index].get() )
    {}

    ReusableStringStream::~ReusableStringStream() {
        static_cast<std::ostringstream*>( m_oss )->str("");
        m_oss->clear();
        Singleton<StringStreams>::getMutable().release( m_index );
    }

    std::string ReusableStringStream::str() const {
        return static_cast<std::ostringstream*>( m_oss )->str();
    }

    void ReusableStringStream::str( std::string const& str ) {
        static_cast<std::ostringstream*>( m_oss )->str( str );
    }


}




#include <cassert>
#include <algorithm>

namespace Catch {

    namespace Generators {
        namespace {
            struct GeneratorTracker final : TestCaseTracking::TrackerBase,
                                      IGeneratorTracker {
                GeneratorBasePtr m_generator;

                GeneratorTracker(
                    TestCaseTracking::NameAndLocation&& nameAndLocation,
                    TrackerContext& ctx,
                    ITracker* parent ):
                    TrackerBase( CATCH_MOVE( nameAndLocation ), ctx, parent ) {}
                ~GeneratorTracker() override = default;

                static GeneratorTracker*
                acquire( TrackerContext& ctx,
                         TestCaseTracking::NameAndLocationRef const&
                             nameAndLocation ) {
                    GeneratorTracker* tracker;

                    ITracker& currentTracker = ctx.currentTracker();
                    // Under specific circumstances, the generator we want
                    // to acquire is also the current tracker. If this is
                    // the case, we have to avoid looking through current
                    // tracker's children, and instead return the current
                    // tracker.
                    // A case where this check is important is e.g.
                    //     for (int i = 0; i < 5; ++i) {
                    //         int n = GENERATE(1, 2);
                    //     }
                    //
                    // without it, the code above creates 5 nested generators.
                    if ( currentTracker.nameAndLocation() == nameAndLocation ) {
                        auto thisTracker = currentTracker.parent()->findChild(
                            nameAndLocation );
                        assert( thisTracker );
                        assert( thisTracker->isGeneratorTracker() );
                        tracker = static_cast<GeneratorTracker*>( thisTracker );
                    } else if ( ITracker* childTracker =
                                    currentTracker.findChild(
                                        nameAndLocation ) ) {
                        assert( childTracker );
                        assert( childTracker->isGeneratorTracker() );
                        tracker =
                            static_cast<GeneratorTracker*>( childTracker );
                    } else {
                        return nullptr;
                    }

                    if ( !tracker->isComplete() ) { tracker->open(); }

                    return tracker;
                }

                // TrackerBase interface
                bool isGeneratorTracker() const override { return true; }
                auto hasGenerator() const -> bool override {
                    return !!m_generator;
                }
                void close() override {
                    TrackerBase::close();
                    // If a generator has a child (it is followed by a section)
                    // and none of its children have started, then we must wait
                    // until later to start consuming its values.
                    // This catches cases where `GENERATE` is placed between two
                    // `SECTION`s.
                    // **The check for m_children.empty cannot be removed**.
                    // doing so would break `GENERATE` _not_ followed by
                    // `SECTION`s.
                    const bool should_wait_for_child = [&]() {
                        // No children -> nobody to wait for
                        if ( m_children.empty() ) { return false; }
                        // If at least one child started executing, don't wait
                        if ( std::find_if(
                                 m_children.begin(),
                                 m_children.end(),
                                 []( TestCaseTracking::ITrackerPtr const&
                                         tracker ) {
                                     return tracker->hasStarted();
                                 } ) != m_children.end() ) {
                            return false;
                        }

                        // No children have started. We need to check if they
                        // _can_ start, and thus we should wait for them, or
                        // they cannot start (due to filters), and we shouldn't
                        // wait for them
                        ITracker* parent = m_parent;
                        // This is safe: there is always at least one section
                        // tracker in a test case tracking tree
                        while ( !parent->isSectionTracker() ) {
                            parent = parent->parent();
                        }
                        assert( parent &&
                                "Missing root (test case) level section" );

                        auto const& parentSection =
                            static_cast<SectionTracker const&>( *parent );
                        auto const& filters = parentSection.getFilters();
                        // No filters -> no restrictions on running sections
                        if ( filters.empty() ) { return true; }

                        for ( auto const& child : m_children ) {
                            if ( child->isSectionTracker() &&
                                 std::find( filters.begin(),
                                            filters.end(),
                                            static_cast<SectionTracker const&>(
                                                *child )
                                                .trimmedName() ) !=
                                     filters.end() ) {
                                return true;
                            }
                        }
                        return false;
                    }();

                    // This check is a bit tricky, because m_generator->next()
                    // has a side-effect, where it consumes generator's current
                    // value, but we do not want to invoke the side-effect if
                    // this generator is still waiting for any child to start.
                    assert( m_generator && "Tracker without generator" );
                    if ( should_wait_for_child ||
                         ( m_runState == CompletedSuccessfully &&
                           m_generator->countedNext() ) ) {
                        m_children.clear();
                        m_runState = Executing;
                    }
                }

                // IGeneratorTracker interface
                auto getGenerator() const -> GeneratorBasePtr const& override {
                    return m_generator;
                }
                void setGenerator( GeneratorBasePtr&& generator ) override {
                    m_generator = CATCH_MOVE( generator );
                }
            };
        } // namespace
    }

    RunContext::RunContext(IConfig const* _config, IEventListenerPtr&& reporter)
    :   m_runInfo(_config->name()),
        m_config(_config),
        m_reporter(CATCH_MOVE(reporter)),
        m_lastAssertionInfo{ StringRef(), SourceLineInfo("",0), StringRef(), ResultDisposition::Normal },
        m_includeSuccessfulResults( m_config->includeSuccessfulResults() || m_reporter->getPreferences().shouldReportAllAssertions )
    {
        getCurrentMutableContext().setResultCapture( this );
        m_reporter->testRunStarting(m_runInfo);
    }

    RunContext::~RunContext() {
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
    }

    Totals RunContext::runTest(TestCaseHandle const& testCase) {
        const Totals prevTotals = m_totals;

        auto const& testInfo = testCase.getTestCaseInfo();
        m_reporter->testCaseStarting(testInfo);
        m_activeTestCase = &testCase;


        ITracker& rootTracker = m_trackerContext.startRun();
        assert(rootTracker.isSectionTracker());
        static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());

        // We intentionally only seed the internal RNG once per test case,
        // before it is first invoked. The reason for that is a complex
        // interplay of generator/section implementation details and the
        // Random*Generator types.
        //
        // The issue boils down to us needing to seed the Random*Generators
        // with different seed each, so that they return different sequences
        // of random numbers. We do this by giving them a number from the
        // shared RNG instance as their seed.
        //
        // However, this runs into an issue if the reseeding happens each
        // time the test case is entered (as opposed to first time only),
        // because multiple generators could get the same seed, e.g. in
        // ```cpp
        // TEST_CASE() {
        //     auto i = GENERATE(take(10, random(0, 100));
        //     SECTION("A") {
        //         auto j = GENERATE(take(10, random(0, 100));
        //     }
        //     SECTION("B") {
        //         auto k = GENERATE(take(10, random(0, 100));
        //     }
        // }
        // ```
        // `i` and `j` would properly return values from different sequences,
        // but `i` and `k` would return the same sequence, because their seed
        // would be the same.
        // (The reason their seeds would be the same is that the generator
        //  for k would be initialized when the test case is entered the second
        //  time, after the shared RNG instance was reset to the same value
        //  it had when the generator for i was initialized.)
        seedRng( *m_config );

        uint64_t testRuns = 0;
        std::string redirectedCout;
        std::string redirectedCerr;
        do {
            m_trackerContext.startCycle();
            m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocationRef(testInfo.name, testInfo.lineInfo));

            m_reporter->testCasePartialStarting(testInfo, testRuns);

            const auto beforeRunTotals = m_totals;
            std::string oneRunCout, oneRunCerr;
            runCurrentTest(oneRunCout, oneRunCerr);
            redirectedCout += oneRunCout;
            redirectedCerr += oneRunCerr;

            const auto singleRunTotals = m_totals.delta(beforeRunTotals);
            auto statsForOneRun = TestCaseStats(testInfo, singleRunTotals, CATCH_MOVE(oneRunCout), CATCH_MOVE(oneRunCerr), aborting());

            m_reporter->testCasePartialEnded(statsForOneRun, testRuns);
            ++testRuns;
        } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

        Totals deltaTotals = m_totals.delta(prevTotals);
        if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
            deltaTotals.assertions.failed++;
            deltaTotals.testCases.passed--;
            deltaTotals.testCases.failed++;
        }
        m_totals.testCases += deltaTotals.testCases;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                  deltaTotals,
                                  CATCH_MOVE(redirectedCout),
                                  CATCH_MOVE(redirectedCerr),
                                  aborting()));

        m_activeTestCase = nullptr;
        m_testCaseTracker = nullptr;

        return deltaTotals;
    }


    void RunContext::assertionEnded(AssertionResult&& result) {
        if (result.getResultType() == ResultWas::Ok) {
            m_totals.assertions.passed++;
            m_lastAssertionPassed = true;
        } else if (result.getResultType() == ResultWas::ExplicitSkip) {
            m_totals.assertions.skipped++;
            m_lastAssertionPassed = true;
        } else if (!result.succeeded()) {
            m_lastAssertionPassed = false;
            if (result.isOk()) {
            }
            else if( m_activeTestCase->getTestCaseInfo().okToFail() )
                m_totals.assertions.failedButOk++;
            else
                m_totals.assertions.failed++;
        }
        else {
            m_lastAssertionPassed = true;
        }

        m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals));

        if ( result.getResultType() != ResultWas::Warning ) {
            m_messageScopes.clear();
        }

        // Reset working state
        resetAssertionInfo();
        m_lastResult = CATCH_MOVE( result );
    }
    void RunContext::resetAssertionInfo() {
        m_lastAssertionInfo.macroName = StringRef();
        m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
    }

    void RunContext::notifyAssertionStarted( AssertionInfo const& info ) {
        m_reporter->assertionStarting( info );
    }

    bool RunContext::sectionStarted( StringRef sectionName,
                                     SourceLineInfo const& sectionLineInfo,
                                     Counts& assertions ) {
        ITracker& sectionTracker =
            SectionTracker::acquire( m_trackerContext,
                                     TestCaseTracking::NameAndLocationRef(
                                         sectionName, sectionLineInfo ) );

        if (!sectionTracker.isOpen())
            return false;
        m_activeSections.push_back(&sectionTracker);

        SectionInfo sectionInfo( sectionLineInfo, static_cast<std::string>(sectionName) );
        m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

        m_reporter->sectionStarting(sectionInfo);

        assertions = m_totals.assertions;

        return true;
    }
    IGeneratorTracker*
    RunContext::acquireGeneratorTracker( StringRef generatorName,
                                         SourceLineInfo const& lineInfo ) {
        using namespace Generators;
        GeneratorTracker* tracker = GeneratorTracker::acquire(
            m_trackerContext,
            TestCaseTracking::NameAndLocationRef(
                 generatorName, lineInfo ) );
        m_lastAssertionInfo.lineInfo = lineInfo;
        return tracker;
    }

    IGeneratorTracker* RunContext::createGeneratorTracker(
        StringRef generatorName,
        SourceLineInfo lineInfo,
        Generators::GeneratorBasePtr&& generator ) {

        auto nameAndLoc = TestCaseTracking::NameAndLocation( static_cast<std::string>( generatorName ), lineInfo );
        auto& currentTracker = m_trackerContext.currentTracker();
        assert(
            currentTracker.nameAndLocation() != nameAndLoc &&
            "Trying to create tracker for a genreator that already has one" );

        auto newTracker = Catch::Detail::make_unique<Generators::GeneratorTracker>(
            CATCH_MOVE(nameAndLoc), m_trackerContext, &currentTracker );
        auto ret = newTracker.get();
        currentTracker.addChild( CATCH_MOVE( newTracker ) );

        ret->setGenerator( CATCH_MOVE( generator ) );
        ret->open();
        return ret;
    }

    bool RunContext::testForMissingAssertions(Counts& assertions) {
        if (assertions.total() != 0)
            return false;
        if (!m_config->warnAboutMissingAssertions())
            return false;
        if (m_trackerContext.currentTracker().hasChildren())
            return false;
        m_totals.assertions.failed++;
        assertions.failed++;
        return true;
    }

    void RunContext::sectionEnded(SectionEndInfo&& endInfo) {
        Counts assertions = m_totals.assertions - endInfo.prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);

        if (!m_activeSections.empty()) {
            m_activeSections.back()->close();
            m_activeSections.pop_back();
        }

        m_reporter->sectionEnded(SectionStats(CATCH_MOVE(endInfo.sectionInfo), assertions, endInfo.durationInSeconds, missingAssertions));
        m_messages.clear();
        m_messageScopes.clear();
    }

    void RunContext::sectionEndedEarly(SectionEndInfo&& endInfo) {
        if ( m_unfinishedSections.empty() ) {
            m_activeSections.back()->fail();
        } else {
            m_activeSections.back()->close();
        }
        m_activeSections.pop_back();

        m_unfinishedSections.push_back(CATCH_MOVE(endInfo));
    }

    void RunContext::benchmarkPreparing( StringRef name ) {
        m_reporter->benchmarkPreparing(name);
    }
    void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
        m_reporter->benchmarkStarting( info );
    }
    void RunContext::benchmarkEnded( BenchmarkStats<> const& stats ) {
        m_reporter->benchmarkEnded( stats );
    }
    void RunContext::benchmarkFailed( StringRef error ) {
        m_reporter->benchmarkFailed( error );
    }

    void RunContext::pushScopedMessage(MessageInfo const & message) {
        m_messages.push_back(message);
    }

    void RunContext::popScopedMessage(MessageInfo const & message) {
        m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
    }

    void RunContext::emplaceUnscopedMessage( MessageBuilder&& builder ) {
        m_messageScopes.emplace_back( CATCH_MOVE(builder) );
    }

    std::string RunContext::getCurrentTestName() const {
        return m_activeTestCase
            ? m_activeTestCase->getTestCaseInfo().name
            : std::string();
    }

    const AssertionResult * RunContext::getLastResult() const {
        return &(*m_lastResult);
    }

    void RunContext::exceptionEarlyReported() {
        m_shouldReportUnexpected = false;
    }

    void RunContext::handleFatalErrorCondition( StringRef message ) {
        // First notify reporter that bad things happened
        m_reporter->fatalErrorEncountered(message);

        // Don't rebuild the result -- the stringification itself can cause more fatal errors
        // Instead, fake a result data.
        AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
        tempResult.message = static_cast<std::string>(message);
        AssertionResult result(m_lastAssertionInfo, CATCH_MOVE(tempResult));

        assertionEnded(CATCH_MOVE(result) );

        handleUnfinishedSections();

        // Recreate section for test case (as we will lose the one that was in scope)
        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);

        Counts assertions;
        assertions.failed = 1;
        SectionStats testCaseSectionStats(CATCH_MOVE(testCaseSection), assertions, 0, false);
        m_reporter->sectionEnded(testCaseSectionStats);

        auto const& testInfo = m_activeTestCase->getTestCaseInfo();

        Totals deltaTotals;
        deltaTotals.testCases.failed = 1;
        deltaTotals.assertions.failed = 1;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                  deltaTotals,
                                  std::string(),
                                  std::string(),
                                  false));
        m_totals.testCases.failed++;
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
    }

    bool RunContext::lastAssertionPassed() {
         return m_lastAssertionPassed;
    }

    void RunContext::assertionPassed() {
        m_lastAssertionPassed = true;
        ++m_totals.assertions.passed;
        resetAssertionInfo();
        m_messageScopes.clear();
    }

    bool RunContext::aborting() const {
        return m_totals.assertions.failed >= static_cast<std::size_t>(m_config->abortAfter());
    }

    void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
        m_reporter->sectionStarting(testCaseSection);
        Counts prevAssertions = m_totals.assertions;
        double duration = 0;
        m_shouldReportUnexpected = true;
        m_lastAssertionInfo = { "TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal };

        Timer timer;
        CATCH_TRY {
            if (m_reporter->getPreferences().shouldRedirectStdOut) {
#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
                RedirectedStreams redirectedStreams(redirectedCout, redirectedCerr);

                timer.start();
                invokeActiveTestCase();
#else
                OutputRedirect r(redirectedCout, redirectedCerr);
                timer.start();
                invokeActiveTestCase();
#endif
            } else {
                timer.start();
                invokeActiveTestCase();
            }
            duration = timer.getElapsedSeconds();
        } CATCH_CATCH_ANON (TestFailureException&) {
            // This just means the test was aborted due to failure
        } CATCH_CATCH_ANON (TestSkipException&) {
            // This just means the test was explicitly skipped
        } CATCH_CATCH_ALL {
            // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
            // are reported without translation at the point of origin.
            if( m_shouldReportUnexpected ) {
                AssertionReaction dummyReaction;
                handleUnexpectedInflightException( m_lastAssertionInfo, translateActiveException(), dummyReaction );
            }
        }
        Counts assertions = m_totals.assertions - prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);

        m_testCaseTracker->close();
        handleUnfinishedSections();
        m_messages.clear();
        m_messageScopes.clear();

        SectionStats testCaseSectionStats(CATCH_MOVE(testCaseSection), assertions, duration, missingAssertions);
        m_reporter->sectionEnded(testCaseSectionStats);
    }

    void RunContext::invokeActiveTestCase() {
        // We need to engage a handler for signals/structured exceptions
        // before running the tests themselves, or the binary can crash
        // without failed test being reported.
        FatalConditionHandlerGuard _(&m_fatalConditionhandler);
        // We keep having issue where some compilers warn about an unused
        // variable, even though the type has non-trivial constructor and
        // destructor. This is annoying and ugly, but it makes them stfu.
        (void)_;

        m_activeTestCase->invoke();
    }

    void RunContext::handleUnfinishedSections() {
        // If sections ended prematurely due to an exception we stored their
        // infos here so we can tear them down outside the unwind process.
        for (auto it = m_unfinishedSections.rbegin(),
             itEnd = m_unfinishedSections.rend();
             it != itEnd;
             ++it)
            sectionEnded(CATCH_MOVE(*it));
        m_unfinishedSections.clear();
    }

    void RunContext::handleExpr(
        AssertionInfo const& info,
        ITransientExpression const& expr,
        AssertionReaction& reaction
    ) {
        bool negated = isFalseTest( info.resultDisposition );
        bool result = expr.getResult() != negated;

        if( result ) {
            if (!m_includeSuccessfulResults) {
                assertionPassed();
            }
            else {
                reportExpr(info, ResultWas::Ok, &expr, negated);
            }
        }
        else {
            reportExpr(info, ResultWas::ExpressionFailed, &expr, negated );
            populateReaction( reaction );
        }
    }
    void RunContext::reportExpr(
            AssertionInfo const &info,
            ResultWas::OfType resultType,
            ITransientExpression const *expr,
            bool negated ) {

        m_lastAssertionInfo = info;
        AssertionResultData data( resultType, LazyExpression( negated ) );

        AssertionResult assertionResult{ info, CATCH_MOVE( data ) };
        assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

        assertionEnded( CATCH_MOVE(assertionResult) );
    }

    void RunContext::handleMessage(
            AssertionInfo const& info,
            ResultWas::OfType resultType,
            StringRef message,
            AssertionReaction& reaction
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data( resultType, LazyExpression( false ) );
        data.message = static_cast<std::string>(message);
        AssertionResult assertionResult{ m_lastAssertionInfo,
                                         CATCH_MOVE( data ) };

        const auto isOk = assertionResult.isOk();
        assertionEnded( CATCH_MOVE(assertionResult) );
        if ( !isOk ) {
            populateReaction( reaction );
        } else if ( resultType == ResultWas::ExplicitSkip ) {
            // TODO: Need to handle this explicitly, as ExplicitSkip is
            // considered "OK"
            reaction.shouldSkip = true;
        }
    }
    void RunContext::handleUnexpectedExceptionNotThrown(
            AssertionInfo const& info,
            AssertionReaction& reaction
    ) {
        handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
    }

    void RunContext::handleUnexpectedInflightException(
            AssertionInfo const& info,
            std::string&& message,
            AssertionReaction& reaction
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
        data.message = CATCH_MOVE(message);
        AssertionResult assertionResult{ info, CATCH_MOVE(data) };
        assertionEnded( CATCH_MOVE(assertionResult) );
        populateReaction( reaction );
    }

    void RunContext::populateReaction( AssertionReaction& reaction ) {
        reaction.shouldDebugBreak = m_config->shouldDebugBreak();
        reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
    }

    void RunContext::handleIncomplete(
            AssertionInfo const& info
    ) {
        using namespace std::string_literals;
        m_lastAssertionInfo = info;

        AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
        data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE"s;
        AssertionResult assertionResult{ info, CATCH_MOVE( data ) };
        assertionEnded( CATCH_MOVE(assertionResult) );
    }
    void RunContext::handleNonExpr(
            AssertionInfo const &info,
            ResultWas::OfType resultType,
            AssertionReaction &reaction
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data( resultType, LazyExpression( false ) );
        AssertionResult assertionResult{ info, CATCH_MOVE( data ) };

        const auto isOk = assertionResult.isOk();
        assertionEnded( CATCH_MOVE(assertionResult) );
        if ( !isOk ) { populateReaction( reaction ); }
    }


    IResultCapture& getResultCapture() {
        if (auto* capture = getCurrentContext().getResultCapture())
            return *capture;
        else
            CATCH_INTERNAL_ERROR("No result capture instance");
    }

    void seedRng(IConfig const& config) {
        sharedRng().seed(config.rngSeed());
    }

    unsigned int rngSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }

}



namespace Catch {

    Section::Section( SectionInfo&& info ):
        m_info( CATCH_MOVE( info ) ),
        m_sectionIncluded(
            getResultCapture().sectionStarted( m_info.name, m_info.lineInfo, m_assertions ) ) {
        // Non-"included" sections will not use the timing information
        // anyway, so don't bother with the potential syscall.
        if (m_sectionIncluded) {
            m_timer.start();
        }
    }

    Section::Section( SourceLineInfo const& _lineInfo,
                      StringRef _name,
                      const char* const ):
        m_info( { "invalid", static_cast<std::size_t>( -1 ) }, std::string{} ),
        m_sectionIncluded(
            getResultCapture().sectionStarted( _name, _lineInfo, m_assertions ) ) {
        // We delay initialization the SectionInfo member until we know
        // this section needs it, so we avoid allocating std::string for name.
        // We also delay timer start to avoid the potential syscall unless we
        // will actually use the result.
        if ( m_sectionIncluded ) {
            m_info.name = static_cast<std::string>( _name );
            m_info.lineInfo = _lineInfo;
            m_timer.start();
        }
    }

    Section::~Section() {
        if( m_sectionIncluded ) {
            SectionEndInfo endInfo{ CATCH_MOVE(m_info), m_assertions, m_timer.getElapsedSeconds() };
            if ( uncaught_exceptions() ) {
                getResultCapture().sectionEndedEarly( CATCH_MOVE(endInfo) );
            } else {
                getResultCapture().sectionEnded( CATCH_MOVE( endInfo ) );
            }
        }
    }

    // This indicates whether the section should be executed or not
    Section::operator bool() const {
        return m_sectionIncluded;
    }


} // end namespace Catch



#include <vector>

namespace Catch {

    namespace {
        static auto getSingletons() -> std::vector<ISingleton*>*& {
            static std::vector<ISingleton*>* g_singletons = nullptr;
            if( !g_singletons )
                g_singletons = new std::vector<ISingleton*>();
            return g_singletons;
        }
    }

    ISingleton::~ISingleton() = default;

    void addSingleton(ISingleton* singleton ) {
        getSingletons()->push_back( singleton );
    }
    void cleanupSingletons() {
        auto& singletons = getSingletons();
        for( auto singleton : *singletons )
            delete singleton;
        delete singletons;
        singletons = nullptr;
    }

} // namespace Catch



#include <cstring>
#include <ostream>

namespace Catch {

    bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
        return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
    }
    bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
        // We can assume that the same file will usually have the same pointer.
        // Thus, if the pointers are the same, there is no point in calling the strcmp
        return line < other.line || ( line == other.line && file != other.file && (std::strcmp(file, other.file) < 0));
    }

    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
#ifndef __GNUG__
        os << info.file << '(' << info.line << ')';
#else
        os << info.file << ':' << info.line;
#endif
        return os;
    }

} // end namespace Catch




namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    void StartupExceptionRegistry::add( std::exception_ptr const& exception ) noexcept {
        CATCH_TRY {
            m_exceptions.push_back(exception);
        } CATCH_CATCH_ALL {
            // If we run out of memory during start-up there's really not a lot more we can do about it
            std::terminate();
        }
    }

    std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
        return m_exceptions;
    }
#endif

} // end namespace Catch





#include <iostream>

namespace Catch {

// If you #define this you must implement these functions
#if !defined( CATCH_CONFIG_NOSTDOUT )
    std::ostream& cout() { return std::cout; }
    std::ostream& cerr() { return std::cerr; }
    std::ostream& clog() { return std::clog; }
#endif

} // namespace Catch



#include <ostream>
#include <cstring>
#include <cctype>
#include <vector>

namespace Catch {

    bool startsWith( std::string const& s, std::string const& prefix ) {
        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
    }
    bool startsWith( StringRef s, char prefix ) {
        return !s.empty() && s[0] == prefix;
    }
    bool endsWith( std::string const& s, std::string const& suffix ) {
        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
    }
    bool endsWith( std::string const& s, char suffix ) {
        return !s.empty() && s[s.size()-1] == suffix;
    }
    bool contains( std::string const& s, std::string const& infix ) {
        return s.find( infix ) != std::string::npos;
    }
    void toLowerInPlace( std::string& s ) {
        for ( char& c : s ) {
            c = toLower( c );
        }
    }
    std::string toLower( std::string const& s ) {
        std::string lc = s;
        toLowerInPlace( lc );
        return lc;
    }
    char toLower(char c) {
        return static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
    }

    std::string trim( std::string const& str ) {
        static char const* whitespaceChars = "\n\r\t ";
        std::string::size_type start = str.find_first_not_of( whitespaceChars );
        std::string::size_type end = str.find_last_not_of( whitespaceChars );

        return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
    }

    StringRef trim(StringRef ref) {
        const auto is_ws = [](char c) {
            return c == ' ' || c == '\t' || c == '\n' || c == '\r';
        };
        size_t real_begin = 0;
        while (real_begin < ref.size() && is_ws(ref[real_begin])) { ++real_begin; }
        size_t real_end = ref.size();
        while (real_end > real_begin && is_ws(ref[real_end - 1])) { --real_end; }

        return ref.substr(real_begin, real_end - real_begin);
    }

    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
        bool replaced = false;
        std::size_t i = str.find( replaceThis );
        while( i != std::string::npos ) {
            replaced = true;
            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
            if( i < str.size()-withThis.size() )
                i = str.find( replaceThis, i+withThis.size() );
            else
                i = std::string::npos;
        }
        return replaced;
    }

    std::vector<StringRef> splitStringRef( StringRef str, char delimiter ) {
        std::vector<StringRef> subStrings;
        std::size_t start = 0;
        for(std::size_t pos = 0; pos < str.size(); ++pos ) {
            if( str[pos] == delimiter ) {
                if( pos - start > 1 )
                    subStrings.push_back( str.substr( start, pos-start ) );
                start = pos+1;
            }
        }
        if( start < str.size() )
            subStrings.push_back( str.substr( start, str.size()-start ) );
        return subStrings;
    }

    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
        os << pluraliser.m_count << ' ' << pluraliser.m_label;
        if( pluraliser.m_count != 1 )
            os << 's';
        return os;
    }

}



#include <algorithm>
#include <ostream>
#include <cstring>
#include <cstdint>

namespace Catch {
    StringRef::StringRef( char const* rawChars ) noexcept
    : StringRef( rawChars, std::strlen(rawChars) )
    {}


    bool StringRef::operator<(StringRef rhs) const noexcept {
        if (m_size < rhs.m_size) {
            return strncmp(m_start, rhs.m_start, m_size) <= 0;
        }
        return strncmp(m_start, rhs.m_start, rhs.m_size) < 0;
    }

    int StringRef::compare( StringRef rhs ) const {
        auto cmpResult =
            strncmp( m_start, rhs.m_start, std::min( m_size, rhs.m_size ) );

        // This means that strncmp found a difference before the strings
        // ended, and we can return it directly
        if ( cmpResult != 0 ) {
            return cmpResult;
        }

        // If strings are equal up to length, then their comparison results on
        // their size
        if ( m_size < rhs.m_size ) {
            return -1;
        } else if ( m_size > rhs.m_size ) {
            return 1;
        } else {
            return 0;
        }
    }

    auto operator << ( std::ostream& os, StringRef str ) -> std::ostream& {
        return os.write(str.data(), static_cast<std::streamsize>(str.size()));
    }

    std::string operator+(StringRef lhs, StringRef rhs) {
        std::string ret;
        ret.reserve(lhs.size() + rhs.size());
        ret += lhs;
        ret += rhs;
        return ret;
    }

    auto operator+=( std::string& lhs, StringRef rhs ) -> std::string& {
        lhs.append(rhs.data(), rhs.size());
        return lhs;
    }

} // namespace Catch



namespace Catch {

    TagAliasRegistry::~TagAliasRegistry() {}

    TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
        auto it = m_registry.find( alias );
        if( it != m_registry.end() )
            return &(it->second);
        else
            return nullptr;
    }

    std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {
        std::string expandedTestSpec = unexpandedTestSpec;
        for( auto const& registryKvp : m_registry ) {
            std::size_t pos = expandedTestSpec.find( registryKvp.first );
            if( pos != std::string::npos ) {
                expandedTestSpec =  expandedTestSpec.substr( 0, pos ) +
                                    registryKvp.second.tag +
                                    expandedTestSpec.substr( pos + registryKvp.first.size() );
            }
        }
        return expandedTestSpec;
    }

    void TagAliasRegistry::add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) {
        CATCH_ENFORCE( startsWith(alias, "[@") && endsWith(alias, ']'),
                      "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo );

        CATCH_ENFORCE( m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
                      "error: tag alias, '" << alias << "' already registered.\n"
                      << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
                      << "\tRedefined at: " << lineInfo );
    }

    ITagAliasRegistry::~ITagAliasRegistry() = default;

    ITagAliasRegistry const& ITagAliasRegistry::get() {
        return getRegistryHub().getTagAliasRegistry();
    }

} // end namespace Catch




namespace Catch {
    TestCaseInfoHasher::TestCaseInfoHasher( hash_t seed ): m_seed( seed ) {}

    uint32_t TestCaseInfoHasher::operator()( TestCaseInfo const& t ) const {
        // FNV-1a hash algorithm that is designed for uniqueness:
        const hash_t prime = 1099511628211u;
        hash_t hash = 14695981039346656037u;
        for ( const char c : t.name ) {
            hash ^= c;
            hash *= prime;
        }
        for ( const char c : t.className ) {
            hash ^= c;
            hash *= prime;
        }
        for ( const Tag& tag : t.tags ) {
            for ( const char c : tag.original ) {
                hash ^= c;
                hash *= prime;
            }
        }
        hash ^= m_seed;
        hash *= prime;
        const uint32_t low{ static_cast<uint32_t>( hash ) };
        const uint32_t high{ static_cast<uint32_t>( hash >> 32 ) };
        return low * high;
    }
} // namespace Catch




#include <algorithm>
#include <set>

namespace Catch {

    namespace {
        static void enforceNoDuplicateTestCases(
            std::vector<TestCaseHandle> const& tests ) {
            auto testInfoCmp = []( TestCaseInfo const* lhs,
                                   TestCaseInfo const* rhs ) {
                return *lhs < *rhs;
            };
            std::set<TestCaseInfo const*, decltype( testInfoCmp )&> seenTests(
                testInfoCmp );
            for ( auto const& test : tests ) {
                const auto infoPtr = &test.getTestCaseInfo();
                const auto prev = seenTests.insert( infoPtr );
                CATCH_ENFORCE( prev.second,
                               "error: test case \""
                                   << infoPtr->name << "\", with tags \""
                                   << infoPtr->tagsAsString()
                                   << "\" already defined.\n"
                                   << "\tFirst seen at "
                                   << ( *prev.first )->lineInfo << "\n"
                                   << "\tRedefined at " << infoPtr->lineInfo );
            }
        }

        static bool matchTest( TestCaseHandle const& testCase,
                               TestSpec const& testSpec,
                               IConfig const& config ) {
            return testSpec.matches( testCase.getTestCaseInfo() ) &&
                   isThrowSafe( testCase, config );
        }

    } // end unnamed namespace

    std::vector<TestCaseHandle> sortTests( IConfig const& config, std::vector<TestCaseHandle> const& unsortedTestCases ) {
        switch (config.runOrder()) {
        case TestRunOrder::Declared:
            return unsortedTestCases;

        case TestRunOrder::LexicographicallySorted: {
            std::vector<TestCaseHandle> sorted = unsortedTestCases;
            std::sort(
                sorted.begin(),
                sorted.end(),
                []( TestCaseHandle const& lhs, TestCaseHandle const& rhs ) {
                    return lhs.getTestCaseInfo() < rhs.getTestCaseInfo();
                }
            );
            return sorted;
        }
        case TestRunOrder::Randomized: {
            seedRng(config);
            using TestWithHash = std::pair<TestCaseInfoHasher::hash_t, TestCaseHandle>;

            TestCaseInfoHasher h{ config.rngSeed() };
            std::vector<TestWithHash> indexed_tests;
            indexed_tests.reserve(unsortedTestCases.size());

            for (auto const& handle : unsortedTestCases) {
                indexed_tests.emplace_back(h(handle.getTestCaseInfo()), handle);
            }

            std::sort( indexed_tests.begin(),
                       indexed_tests.end(),
                       []( TestWithHash const& lhs, TestWithHash const& rhs ) {
                           if ( lhs.first == rhs.first ) {
                               return lhs.second.getTestCaseInfo() <
                                      rhs.second.getTestCaseInfo();
                           }
                           return lhs.first < rhs.first;
                       } );

            std::vector<TestCaseHandle> randomized;
            randomized.reserve(indexed_tests.size());

            for (auto const& indexed : indexed_tests) {
                randomized.push_back(indexed.second);
            }

            return randomized;
        }
        }

        CATCH_INTERNAL_ERROR("Unknown test order value!");
    }

    bool isThrowSafe( TestCaseHandle const& testCase, IConfig const& config ) {
        return !testCase.getTestCaseInfo().throws() || config.allowThrows();
    }

    std::vector<TestCaseHandle> filterTests( std::vector<TestCaseHandle> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
        std::vector<TestCaseHandle> filtered;
        filtered.reserve( testCases.size() );
        for (auto const& testCase : testCases) {
            if ((!testSpec.hasFilters() && !testCase.getTestCaseInfo().isHidden()) ||
                (testSpec.hasFilters() && matchTest(testCase, testSpec, config))) {
                filtered.push_back(testCase);
            }
        }
        return createShard(filtered, config.shardCount(), config.shardIndex());
    }
    std::vector<TestCaseHandle> const& getAllTestCasesSorted( IConfig const& config ) {
        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
    }

    void TestRegistry::registerTest(Detail::unique_ptr<TestCaseInfo> testInfo, Detail::unique_ptr<ITestInvoker> testInvoker) {
        m_handles.emplace_back(testInfo.get(), testInvoker.get());
        m_viewed_test_infos.push_back(testInfo.get());
        m_owned_test_infos.push_back(CATCH_MOVE(testInfo));
        m_invokers.push_back(CATCH_MOVE(testInvoker));
    }

    std::vector<TestCaseInfo*> const& TestRegistry::getAllInfos() const {
        return m_viewed_test_infos;
    }

    std::vector<TestCaseHandle> const& TestRegistry::getAllTests() const {
        return m_handles;
    }
    std::vector<TestCaseHandle> const& TestRegistry::getAllTestsSorted( IConfig const& config ) const {
        if( m_sortedFunctions.empty() )
            enforceNoDuplicateTestCases( m_handles );

        if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
            m_sortedFunctions = sortTests( config, m_handles );
            m_currentSortOrder = config.runOrder();
        }
        return m_sortedFunctions;
    }

} // end namespace Catch




#include <algorithm>
#include <cassert>

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch {
namespace TestCaseTracking {

    NameAndLocation::NameAndLocation( std::string&& _name, SourceLineInfo const& _location )
    :   name( CATCH_MOVE(_name) ),
        location( _location )
    {}


    ITracker::~ITracker() = default;

    void ITracker::markAsNeedingAnotherRun() {
        m_runState = NeedsAnotherRun;
    }

    void ITracker::addChild( ITrackerPtr&& child ) {
        m_children.push_back( CATCH_MOVE(child) );
    }

    ITracker* ITracker::findChild( NameAndLocationRef const& nameAndLocation ) {
        auto it = std::find_if(
            m_children.begin(),
            m_children.end(),
            [&nameAndLocation]( ITrackerPtr const& tracker ) {
                auto const& tnameAndLoc = tracker->nameAndLocation();
                if ( tnameAndLoc.location.line !=
                     nameAndLocation.location.line ) {
                    return false;
                }
                return tnameAndLoc == nameAndLocation;
            } );
        return ( it != m_children.end() ) ? it->get() : nullptr;
    }

    bool ITracker::isSectionTracker() const { return false; }
    bool ITracker::isGeneratorTracker() const { return false; }

    bool ITracker::isOpen() const {
        return m_runState != NotStarted && !isComplete();
    }

    bool ITracker::hasStarted() const { return m_runState != NotStarted; }

    void ITracker::openChild() {
        if (m_runState != ExecutingChildren) {
            m_runState = ExecutingChildren;
            if (m_parent) {
                m_parent->openChild();
            }
        }
    }

    ITracker& TrackerContext::startRun() {
        using namespace std::string_literals;
        m_rootTracker = Catch::Detail::make_unique<SectionTracker>(
            NameAndLocation( "{root}"s, CATCH_INTERNAL_LINEINFO ),
            *this,
            nullptr );
        m_currentTracker = nullptr;
        m_runState = Executing;
        return *m_rootTracker;
    }

    void TrackerContext::completeCycle() {
        m_runState = CompletedCycle;
    }

    bool TrackerContext::completedCycle() const {
        return m_runState == CompletedCycle;
    }
    void TrackerContext::setCurrentTracker( ITracker* tracker ) {
        m_currentTracker = tracker;
    }


    TrackerBase::TrackerBase( NameAndLocation&& nameAndLocation, TrackerContext& ctx, ITracker* parent ):
        ITracker(CATCH_MOVE(nameAndLocation), parent),
        m_ctx( ctx )
    {}

    bool TrackerBase::isComplete() const {
        return m_runState == CompletedSuccessfully || m_runState == Failed;
    }

    void TrackerBase::open() {
        m_runState = Executing;
        moveToThis();
        if( m_parent )
            m_parent->openChild();
    }

    void TrackerBase::close() {

        // Close any still open children (e.g. generators)
        while( &m_ctx.currentTracker() != this )
            m_ctx.currentTracker().close();

        switch( m_runState ) {
            case NeedsAnotherRun:
                break;

            case Executing:
                m_runState = CompletedSuccessfully;
                break;
            case ExecutingChildren:
                if( std::all_of(m_children.begin(), m_children.end(), [](ITrackerPtr const& t){ return t->isComplete(); }) )
                    m_runState = CompletedSuccessfully;
                break;

            case NotStarted:
            case CompletedSuccessfully:
            case Failed:
                CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );

            default:
                CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
        }
        moveToParent();
        m_ctx.completeCycle();
    }
    void TrackerBase::fail() {
        m_runState = Failed;
        if( m_parent )
            m_parent->markAsNeedingAnotherRun();
        moveToParent();
        m_ctx.completeCycle();
    }

    void TrackerBase::moveToParent() {
        assert( m_parent );
        m_ctx.setCurrentTracker( m_parent );
    }
    void TrackerBase::moveToThis() {
        m_ctx.setCurrentTracker( this );
    }

    SectionTracker::SectionTracker( NameAndLocation&& nameAndLocation, TrackerContext& ctx, ITracker* parent )
    :   TrackerBase( CATCH_MOVE(nameAndLocation), ctx, parent ),
        m_trimmed_name(trim(StringRef(ITracker::nameAndLocation().name)))
    {
        if( parent ) {
            while ( !parent->isSectionTracker() ) {
                parent = parent->parent();
            }

            SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
            addNextFilters( parentSection.m_filters );
        }
    }

    bool SectionTracker::isComplete() const {
        bool complete = true;

        if (m_filters.empty()
            || m_filters[0].empty()
            || std::find(m_filters.begin(), m_filters.end(), m_trimmed_name) != m_filters.end()) {
            complete = TrackerBase::isComplete();
        }
        return complete;
    }

    bool SectionTracker::isSectionTracker() const { return true; }

    SectionTracker& SectionTracker::acquire( TrackerContext& ctx, NameAndLocationRef const& nameAndLocation ) {
        SectionTracker* tracker;

        ITracker& currentTracker = ctx.currentTracker();
        if ( ITracker* childTracker =
                 currentTracker.findChild( nameAndLocation ) ) {
            assert( childTracker );
            assert( childTracker->isSectionTracker() );
            tracker = static_cast<SectionTracker*>( childTracker );
        } else {
            auto newTracker = Catch::Detail::make_unique<SectionTracker>(
                NameAndLocation{ static_cast<std::string>(nameAndLocation.name),
                                 nameAndLocation.location },
                ctx,
                &currentTracker );
            tracker = newTracker.get();
            currentTracker.addChild( CATCH_MOVE( newTracker ) );
        }

        if ( !ctx.completedCycle() ) {
            tracker->tryOpen();
        }

        return *tracker;
    }

    void SectionTracker::tryOpen() {
        if( !isComplete() )
            open();
    }

    void SectionTracker::addInitialFilters( std::vector<std::string> const& filters ) {
        if( !filters.empty() ) {
            m_filters.reserve( m_filters.size() + filters.size() + 2 );
            m_filters.emplace_back(StringRef{}); // Root - should never be consulted
            m_filters.emplace_back(StringRef{}); // Test Case - not a section filter
            m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
        }
    }
    void SectionTracker::addNextFilters( std::vector<StringRef> const& filters ) {
        if( filters.size() > 1 )
            m_filters.insert( m_filters.end(), filters.begin()+1, filters.end() );
    }

    StringRef SectionTracker::trimmedName() const {
        return m_trimmed_name;
    }

} // namespace TestCaseTracking

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif




namespace Catch {

    void throw_test_failure_exception() {
#if !defined( CATCH_CONFIG_DISABLE_EXCEPTIONS )
        throw TestFailureException{};
#else
        CATCH_ERROR( "Test failure requires aborting test!" );
#endif
    }

    void throw_test_skip_exception() {
#if !defined( CATCH_CONFIG_DISABLE_EXCEPTIONS )
        throw Catch::TestSkipException();
#else
        CATCH_ERROR( "Explicitly skipping tests during runtime requires exceptions" );
#endif
    }

} // namespace Catch



#include <algorithm>
#include <iterator>

namespace Catch {
    ITestInvoker::~ITestInvoker() = default;

    namespace {
        static StringRef extractClassName( StringRef classOrMethodName ) {
            if ( !startsWith( classOrMethodName, '&' ) ) {
                return classOrMethodName;
            }

            // Remove the leading '&' to avoid having to special case it later
            const auto methodName =
                classOrMethodName.substr( 1, classOrMethodName.size() );

            auto reverseStart = std::make_reverse_iterator( methodName.end() );
            auto reverseEnd = std::make_reverse_iterator( methodName.begin() );

            // We make a simplifying assumption that ":" is only present
            // in the input as part of "::" from C++ typenames (this is
            // relatively safe assumption because the input is generated
            // as stringification of type through preprocessor).
            auto lastColons = std::find( reverseStart, reverseEnd, ':' ) + 1;
            auto secondLastColons =
                std::find( lastColons + 1, reverseEnd, ':' );

            auto const startIdx = reverseEnd - secondLastColons;
            auto const classNameSize = secondLastColons - lastColons - 1;

            return methodName.substr(
                static_cast<std::size_t>( startIdx ),
                static_cast<std::size_t>( classNameSize ) );
        }

        class TestInvokerAsFunction final : public ITestInvoker {
            using TestType = void ( * )();
            TestType m_testAsFunction;

        public:
            TestInvokerAsFunction( TestType testAsFunction ) noexcept:
                m_testAsFunction( testAsFunction ) {}

            void invoke() const override { m_testAsFunction(); }
        };

    } // namespace

    Detail::unique_ptr<ITestInvoker> makeTestInvoker( void(*testAsFunction)() ) {
        return Detail::make_unique<TestInvokerAsFunction>( testAsFunction );
    }

    AutoReg::AutoReg( Detail::unique_ptr<ITestInvoker> invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags ) noexcept {
        CATCH_TRY {
            getMutableRegistryHub()
                    .registerTest(
                        makeTestCaseInfo(
                            extractClassName( classOrMethod ),
                            nameAndTags,
                            lineInfo),
                        CATCH_MOVE(invoker)
                    );
        } CATCH_CATCH_ALL {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }
}





namespace Catch {

    TestSpecParser::TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}

    TestSpecParser& TestSpecParser::parse( std::string const& arg ) {
        m_mode = None;
        m_exclusion = false;
        m_arg = m_tagAliases->expandAliases( arg );
        m_escapeChars.clear();
        m_substring.reserve(m_arg.size());
        m_patternName.reserve(m_arg.size());
        m_realPatternPos = 0;

        for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
          //if visitChar fails
           if( !visitChar( m_arg[m_pos] ) ){
               m_testSpec.m_invalidSpecs.push_back(arg);
               break;
           }
        endMode();
        return *this;
    }
    TestSpec TestSpecParser::testSpec() {
        addFilter();
        return CATCH_MOVE(m_testSpec);
    }
    bool TestSpecParser::visitChar( char c ) {
        if( (m_mode != EscapedName) && (c == '\\') ) {
            escape();
            addCharToPattern(c);
            return true;
        }else if((m_mode != EscapedName) && (c == ',') )  {
            return separate();
        }

        switch( m_mode ) {
        case None:
            if( processNoneChar( c ) )
                return true;
            break;
        case Name:
            processNameChar( c );
            break;
        case EscapedName:
            endMode();
            addCharToPattern(c);
            return true;
        default:
        case Tag:
        case QuotedName:
            if( processOtherChar( c ) )
                return true;
            break;
        }

        m_substring += c;
        if( !isControlChar( c ) ) {
            m_patternName += c;
            m_realPatternPos++;
        }
        return true;
    }
    // Two of the processing methods return true to signal the caller to return
    // without adding the given character to the current pattern strings
    bool TestSpecParser::processNoneChar( char c ) {
        switch( c ) {
        case ' ':
            return true;
        case '~':
            m_exclusion = true;
            return false;
        case '[':
            startNewMode( Tag );
            return false;
        case '"':
            startNewMode( QuotedName );
            return false;
        default:
            startNewMode( Name );
            return false;
        }
    }
    void TestSpecParser::processNameChar( char c ) {
        if( c == '[' ) {
            if( m_substring == "exclude:" )
                m_exclusion = true;
            else
                endMode();
            startNewMode( Tag );
        }
    }
    bool TestSpecParser::processOtherChar( char c ) {
        if( !isControlChar( c ) )
            return false;
        m_substring += c;
        endMode();
        return true;
    }
    void TestSpecParser::startNewMode( Mode mode ) {
        m_mode = mode;
    }
    void TestSpecParser::endMode() {
        switch( m_mode ) {
        case Name:
        case QuotedName:
            return addNamePattern();
        case Tag:
            return addTagPattern();
        case EscapedName:
            revertBackToLastMode();
            return;
        case None:
        default:
            return startNewMode( None );
        }
    }
    void TestSpecParser::escape() {
        saveLastMode();
        m_mode = EscapedName;
        m_escapeChars.push_back(m_realPatternPos);
    }
    bool TestSpecParser::isControlChar( char c ) const {
        switch( m_mode ) {
            default:
                return false;
            case None:
                return c == '~';
            case Name:
                return c == '[';
            case EscapedName:
                return true;
            case QuotedName:
                return c == '"';
            case Tag:
                return c == '[' || c == ']';
        }
    }

    void TestSpecParser::addFilter() {
        if( !m_currentFilter.m_required.empty() || !m_currentFilter.m_forbidden.empty() ) {
            m_testSpec.m_filters.push_back( CATCH_MOVE(m_currentFilter) );
            m_currentFilter = TestSpec::Filter();
        }
    }

    void TestSpecParser::saveLastMode() {
      lastMode = m_mode;
    }

    void TestSpecParser::revertBackToLastMode() {
      m_mode = lastMode;
    }

    bool TestSpecParser::separate() {
      if( (m_mode==QuotedName) || (m_mode==Tag) ){
         //invalid argument, signal failure to previous scope.
         m_mode = None;
         m_pos = m_arg.size();
         m_substring.clear();
         m_patternName.clear();
         m_realPatternPos = 0;
         return false;
      }
      endMode();
      addFilter();
      return true; //success
    }

    std::string TestSpecParser::preprocessPattern() {
        std::string token = m_patternName;
        for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
            token = token.substr(0, m_escapeChars[i] - i) + token.substr(m_escapeChars[i] - i + 1);
        m_escapeChars.clear();
        if (startsWith(token, "exclude:")) {
            m_exclusion = true;
            token = token.substr(8);
        }

        m_patternName.clear();
        m_realPatternPos = 0;

        return token;
    }

    void TestSpecParser::addNamePattern() {
        auto token = preprocessPattern();

        if (!token.empty()) {
            if (m_exclusion) {
                m_currentFilter.m_forbidden.emplace_back(Detail::make_unique<TestSpec::NamePattern>(token, m_substring));
            } else {
                m_currentFilter.m_required.emplace_back(Detail::make_unique<TestSpec::NamePattern>(token, m_substring));
            }
        }
        m_substring.clear();
        m_exclusion = false;
        m_mode = None;
    }

    void TestSpecParser::addTagPattern() {
        auto token = preprocessPattern();

        if (!token.empty()) {
            // If the tag pattern is the "hide and tag" shorthand (e.g. [.foo])
            // we have to create a separate hide tag and shorten the real one
            if (token.size() > 1 && token[0] == '.') {
                token.erase(token.begin());
                if (m_exclusion) {
                    m_currentFilter.m_forbidden.emplace_back(Detail::make_unique<TestSpec::TagPattern>(".", m_substring));
                } else {
                    m_currentFilter.m_required.emplace_back(Detail::make_unique<TestSpec::TagPattern>(".", m_substring));
                }
            }
            if (m_exclusion) {
                m_currentFilter.m_forbidden.emplace_back(Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
            } else {
                m_currentFilter.m_required.emplace_back(Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
            }
        }
        m_substring.clear();
        m_exclusion = false;
        m_mode = None;
    }

} // namespace Catch



#include <algorithm>
#include <cstring>
#include <ostream>

namespace {
    bool isWhitespace( char c ) {
        return c == ' ' || c == '\t' || c == '\n' || c == '\r';
    }

    bool isBreakableBefore( char c ) {
        static const char chars[] = "[({<|";
        return std::memchr( chars, c, sizeof( chars ) - 1 ) != nullptr;
    }

    bool isBreakableAfter( char c ) {
        static const char chars[] = "])}>.,:;*+-=&/\\";
        return std::memchr( chars, c, sizeof( chars ) - 1 ) != nullptr;
    }

    bool isBoundary( std::string const& line, size_t at ) {
        assert( at > 0 );
        assert( at <= line.size() );

        return at == line.size() ||
               ( isWhitespace( line[at] ) && !isWhitespace( line[at - 1] ) ) ||
               isBreakableBefore( line[at] ) ||
               isBreakableAfter( line[at - 1] );
    }

} // namespace

namespace Catch {
    namespace TextFlow {

        void Column::const_iterator::calcLength() {
            m_addHyphen = false;
            m_parsedTo = m_lineStart;

            std::string const& current_line = m_column.m_string;
            if ( current_line[m_lineStart] == '\n' ) {
                ++m_parsedTo;
            }

            const auto maxLineLength = m_column.m_width - indentSize();
            const auto maxParseTo = std::min(current_line.size(), m_lineStart + maxLineLength);
            while ( m_parsedTo < maxParseTo &&
                    current_line[m_parsedTo] != '\n' ) {
                ++m_parsedTo;
            }

            // If we encountered a newline before the column is filled,
            // then we linebreak at the newline and consider this line
            // finished.
            if ( m_parsedTo < m_lineStart + maxLineLength ) {
                m_lineLength = m_parsedTo - m_lineStart;
            } else {
                // Look for a natural linebreak boundary in the column
                // (We look from the end, so that the first found boundary is
                // the right one)
                size_t newLineLength = maxLineLength;
                while ( newLineLength > 0 && !isBoundary( current_line, m_lineStart + newLineLength ) ) {
                    --newLineLength;
                }
                while ( newLineLength > 0 &&
                        isWhitespace( current_line[m_lineStart + newLineLength - 1] ) ) {
                    --newLineLength;
                }

                // If we found one, then that is where we linebreak
                if ( newLineLength > 0 ) {
                    m_lineLength = newLineLength;
                } else {
                    // Otherwise we have to split text with a hyphen
                    m_addHyphen = true;
                    m_lineLength = maxLineLength - 1;
                }
            }
        }

        size_t Column::const_iterator::indentSize() const {
            auto initial =
                m_lineStart == 0 ? m_column.m_initialIndent : std::string::npos;
            return initial == std::string::npos ? m_column.m_indent : initial;
        }

        std::string
        Column::const_iterator::addIndentAndSuffix( size_t position,
                                              size_t length ) const {
            std::string ret;
            const auto desired_indent = indentSize();
            ret.reserve( desired_indent + length + m_addHyphen );
            ret.append( desired_indent, ' ' );
            ret.append( m_column.m_string, position, length );
            if ( m_addHyphen ) {
                ret.push_back( '-' );
            }

            return ret;
        }

        Column::const_iterator::const_iterator( Column const& column ): m_column( column ) {
            assert( m_column.m_width > m_column.m_indent );
            assert( m_column.m_initialIndent == std::string::npos ||
                    m_column.m_width > m_column.m_initialIndent );
            calcLength();
            if ( m_lineLength == 0 ) {
                m_lineStart = m_column.m_string.size();
            }
        }

        std::string Column::const_iterator::operator*() const {
            assert( m_lineStart <= m_parsedTo );
            return addIndentAndSuffix( m_lineStart, m_lineLength );
        }

        Column::const_iterator& Column::const_iterator::operator++() {
            m_lineStart += m_lineLength;
            std::string const& current_line = m_column.m_string;
            if ( m_lineStart < current_line.size() && current_line[m_lineStart] == '\n' ) {
                m_lineStart += 1;
            } else {
                while ( m_lineStart < current_line.size() &&
                        isWhitespace( current_line[m_lineStart] ) ) {
                    ++m_lineStart;
                }
            }

            if ( m_lineStart != current_line.size() ) {
                calcLength();
            }
            return *this;
        }

        Column::const_iterator Column::const_iterator::operator++( int ) {
            const_iterator prev( *this );
            operator++();
            return prev;
        }

        std::ostream& operator<<( std::ostream& os, Column const& col ) {
            bool first = true;
            for ( auto line : col ) {
                if ( first ) {
                    first = false;
                } else {
                    os << '\n';
                }
                os << line;
            }
            return os;
        }

        Column Spacer( size_t spaceWidth ) {
            Column ret{ "" };
            ret.width( spaceWidth );
            return ret;
        }

        Columns::iterator::iterator( Columns const& columns, EndTag ):
            m_columns( columns.m_columns ), m_activeIterators( 0 ) {

            m_iterators.reserve( m_columns.size() );
            for ( auto const& col : m_columns ) {
                m_iterators.push_back( col.end() );
            }
        }

        Columns::iterator::iterator( Columns const& columns ):
            m_columns( columns.m_columns ),
            m_activeIterators( m_columns.size() ) {

            m_iterators.reserve( m_columns.size() );
            for ( auto const& col : m_columns ) {
                m_iterators.push_back( col.begin() );
            }
        }

        std::string Columns::iterator::operator*() const {
            std::string row, padding;

            for ( size_t i = 0; i < m_columns.size(); ++i ) {
                const auto width = m_columns[i].width();
                if ( m_iterators[i] != m_columns[i].end() ) {
                    std::string col = *m_iterators[i];
                    row += padding;
                    row += col;

                    padding.clear();
                    if ( col.size() < width ) {
                        padding.append( width - col.size(), ' ' );
                    }
                } else {
                    padding.append( width, ' ' );
                }
            }
            return row;
        }

        Columns::iterator& Columns::iterator::operator++() {
            for ( size_t i = 0; i < m_columns.size(); ++i ) {
                if ( m_iterators[i] != m_columns[i].end() ) {
                    ++m_iterators[i];
                }
            }
            return *this;
        }

        Columns::iterator Columns::iterator::operator++( int ) {
            iterator prev( *this );
            operator++();
            return prev;
        }

        std::ostream& operator<<( std::ostream& os, Columns const& cols ) {
            bool first = true;
            for ( auto line : cols ) {
                if ( first ) {
                    first = false;
                } else {
                    os << '\n';
                }
                os << line;
            }
            return os;
        }

        Columns Column::operator+( Column const& other ) {
            Columns cols;
            cols += *this;
            cols += other;
            return cols;
        }

        Columns& Columns::operator+=( Column const& col ) {
            m_columns.push_back( col );
            return *this;
        }

        Columns Columns::operator+( Column const& col ) {
            Columns combined = *this;
            combined += col;
            return combined;
        }

    } // namespace TextFlow
} // namespace Catch




#include <exception>

namespace Catch {
    bool uncaught_exceptions() {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        return false;
#elif defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
        return std::uncaught_exceptions() > 0;
#else
        return std::uncaught_exception();
#endif
  }
} // end namespace Catch



namespace Catch {

    WildcardPattern::WildcardPattern( std::string const& pattern,
                                      CaseSensitive caseSensitivity )
    :   m_caseSensitivity( caseSensitivity ),
        m_pattern( normaliseString( pattern ) )
    {
        if( startsWith( m_pattern, '*' ) ) {
            m_pattern = m_pattern.substr( 1 );
            m_wildcard = WildcardAtStart;
        }
        if( endsWith( m_pattern, '*' ) ) {
            m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
            m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
        }
    }

    bool WildcardPattern::matches( std::string const& str ) const {
        switch( m_wildcard ) {
            case NoWildcard:
                return m_pattern == normaliseString( str );
            case WildcardAtStart:
                return endsWith( normaliseString( str ), m_pattern );
            case WildcardAtEnd:
                return startsWith( normaliseString( str ), m_pattern );
            case WildcardAtBothEnds:
                return contains( normaliseString( str ), m_pattern );
            default:
                CATCH_INTERNAL_ERROR( "Unknown enum" );
        }
    }

    std::string WildcardPattern::normaliseString( std::string const& str ) const {
        return trim( m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str );
    }
}


// Note: swapping these two includes around causes MSVC to error out
//       while in /permissive- mode. No, I don't know why.
//       Tested on VS 2019, 18.{3, 4}.x

#include <cstdint>
#include <iomanip>
#include <type_traits>

namespace Catch {

namespace {

    size_t trailingBytes(unsigned char c) {
        if ((c & 0xE0) == 0xC0) {
            return 2;
        }
        if ((c & 0xF0) == 0xE0) {
            return 3;
        }
        if ((c & 0xF8) == 0xF0) {
            return 4;
        }
        CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
    }

    uint32_t headerValue(unsigned char c) {
        if ((c & 0xE0) == 0xC0) {
            return c & 0x1F;
        }
        if ((c & 0xF0) == 0xE0) {
            return c & 0x0F;
        }
        if ((c & 0xF8) == 0xF0) {
            return c & 0x07;
        }
        CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
    }

    void hexEscapeChar(std::ostream& os, unsigned char c) {
        std::ios_base::fmtflags f(os.flags());
        os << "\\x"
            << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
            << static_cast<int>(c);
        os.flags(f);
    }

    bool shouldNewline(XmlFormatting fmt) {
        return !!(static_cast<std::underlying_type_t<XmlFormatting>>(fmt & XmlFormatting::Newline));
    }

    bool shouldIndent(XmlFormatting fmt) {
        return !!(static_cast<std::underlying_type_t<XmlFormatting>>(fmt & XmlFormatting::Indent));
    }

} // anonymous namespace

    XmlFormatting operator | (XmlFormatting lhs, XmlFormatting rhs) {
        return static_cast<XmlFormatting>(
            static_cast<std::underlying_type_t<XmlFormatting>>(lhs) |
            static_cast<std::underlying_type_t<XmlFormatting>>(rhs)
        );
    }

    XmlFormatting operator & (XmlFormatting lhs, XmlFormatting rhs) {
        return static_cast<XmlFormatting>(
            static_cast<std::underlying_type_t<XmlFormatting>>(lhs) &
            static_cast<std::underlying_type_t<XmlFormatting>>(rhs)
        );
    }


    XmlEncode::XmlEncode( StringRef str, ForWhat forWhat )
    :   m_str( str ),
        m_forWhat( forWhat )
    {}

    void XmlEncode::encodeTo( std::ostream& os ) const {
        // Apostrophe escaping not necessary if we always use " to write attributes
        // (see: http://www.w3.org/TR/xml/#syntax)

        for( std::size_t idx = 0; idx < m_str.size(); ++ idx ) {
            unsigned char c = static_cast<unsigned char>(m_str[idx]);
            switch (c) {
            case '<':   os << "&lt;"; break;
            case '&':   os << "&amp;"; break;

            case '>':
                // See: http://www.w3.org/TR/xml/#syntax
                if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
                    os << "&gt;";
                else
                    os << c;
                break;

            case '\"':
                if (m_forWhat == ForAttributes)
                    os << "&quot;";
                else
                    os << c;
                break;

            default:
                // Check for control characters and invalid utf-8

                // Escape control characters in standard ascii
                // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
                if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
                    hexEscapeChar(os, c);
                    break;
                }

                // Plain ASCII: Write it to stream
                if (c < 0x7F) {
                    os << c;
                    break;
                }

                // UTF-8 territory
                // Check if the encoding is valid and if it is not, hex escape bytes.
                // Important: We do not check the exact decoded values for validity, only the encoding format
                // First check that this bytes is a valid lead byte:
                // This means that it is not encoded as 1111 1XXX
                // Or as 10XX XXXX
                if (c <  0xC0 ||
                    c >= 0xF8) {
                    hexEscapeChar(os, c);
                    break;
                }

                auto encBytes = trailingBytes(c);
                // Are there enough bytes left to avoid accessing out-of-bounds memory?
                if (idx + encBytes - 1 >= m_str.size()) {
                    hexEscapeChar(os, c);
                    break;
                }
                // The header is valid, check data
                // The next encBytes bytes must together be a valid utf-8
                // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
                bool valid = true;
                uint32_t value = headerValue(c);
                for (std::size_t n = 1; n < encBytes; ++n) {
                    unsigned char nc = static_cast<unsigned char>(m_str[idx + n]);
                    valid &= ((nc & 0xC0) == 0x80);
                    value = (value << 6) | (nc & 0x3F);
                }

                if (
                    // Wrong bit pattern of following bytes
                    (!valid) ||
                    // Overlong encodings
                    (value < 0x80) ||
                    (0x80 <= value && value < 0x800   && encBytes > 2) ||
                    (0x800 < value && value < 0x10000 && encBytes > 3) ||
                    // Encoded value out of range
                    (value >= 0x110000)
                    ) {
                    hexEscapeChar(os, c);
                    break;
                }

                // If we got here, this is in fact a valid(ish) utf-8 sequence
                for (std::size_t n = 0; n < encBytes; ++n) {
                    os << m_str[idx + n];
                }
                idx += encBytes - 1;
                break;
            }
        }
    }

    std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
        xmlEncode.encodeTo( os );
        return os;
    }

    XmlWriter::ScopedElement::ScopedElement( XmlWriter* writer, XmlFormatting fmt )
    :   m_writer( writer ),
        m_fmt(fmt)
    {}

    XmlWriter::ScopedElement::ScopedElement( ScopedElement&& other ) noexcept
    :   m_writer( other.m_writer ),
        m_fmt(other.m_fmt)
    {
        other.m_writer = nullptr;
        other.m_fmt = XmlFormatting::None;
    }
    XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=( ScopedElement&& other ) noexcept {
        if ( m_writer ) {
            m_writer->endElement();
        }
        m_writer = other.m_writer;
        other.m_writer = nullptr;
        m_fmt = other.m_fmt;
        other.m_fmt = XmlFormatting::None;
        return *this;
    }


    XmlWriter::ScopedElement::~ScopedElement() {
        if (m_writer) {
            m_writer->endElement(m_fmt);
        }
    }

    XmlWriter::ScopedElement&
    XmlWriter::ScopedElement::writeText( StringRef text, XmlFormatting fmt ) {
        m_writer->writeText( text, fmt );
        return *this;
    }

    XmlWriter::ScopedElement&
    XmlWriter::ScopedElement::writeAttribute( StringRef name,
                                              StringRef attribute ) {
        m_writer->writeAttribute( name, attribute );
        return *this;
    }


    XmlWriter::XmlWriter( std::ostream& os ) : m_os( os )
    {
        writeDeclaration();
    }

    XmlWriter::~XmlWriter() {
        while (!m_tags.empty()) {
            endElement();
        }
        newlineIfNecessary();
    }

    XmlWriter& XmlWriter::startElement( std::string const& name, XmlFormatting fmt ) {
        ensureTagClosed();
        newlineIfNecessary();
        if (shouldIndent(fmt)) {
            m_os << m_indent;
            m_indent += "  ";
        }
        m_os << '<' << name;
        m_tags.push_back( name );
        m_tagIsOpen = true;
        applyFormatting(fmt);
        return *this;
    }

    XmlWriter::ScopedElement XmlWriter::scopedElement( std::string const& name, XmlFormatting fmt ) {
        ScopedElement scoped( this, fmt );
        startElement( name, fmt );
        return scoped;
    }

    XmlWriter& XmlWriter::endElement(XmlFormatting fmt) {
        m_indent = m_indent.substr(0, m_indent.size() - 2);

        if( m_tagIsOpen ) {
            m_os << "/>";
            m_tagIsOpen = false;
        } else {
            newlineIfNecessary();
            if (shouldIndent(fmt)) {
                m_os << m_indent;
            }
            m_os << "</" << m_tags.back() << '>';
        }
        m_os << std::flush;
        applyFormatting(fmt);
        m_tags.pop_back();
        return *this;
    }

    XmlWriter& XmlWriter::writeAttribute( StringRef name,
                                          StringRef attribute ) {
        if( !name.empty() && !attribute.empty() )
            m_os << ' ' << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << '"';
        return *this;
    }

    XmlWriter& XmlWriter::writeAttribute( StringRef name, bool attribute ) {
        writeAttribute(name, (attribute ? "true"_sr : "false"_sr));
        return *this;
    }

    XmlWriter& XmlWriter::writeAttribute( StringRef name,
                                          char const* attribute ) {
        writeAttribute( name, StringRef( attribute ) );
        return *this;
    }

    XmlWriter& XmlWriter::writeText( StringRef text, XmlFormatting fmt ) {
        CATCH_ENFORCE(!m_tags.empty(), "Cannot write text as top level element");
        if( !text.empty() ){
            bool tagWasOpen = m_tagIsOpen;
            ensureTagClosed();
            if (tagWasOpen && shouldIndent(fmt)) {
                m_os << m_indent;
            }
            m_os << XmlEncode( text, XmlEncode::ForTextNodes );
            applyFormatting(fmt);
        }
        return *this;
    }

    XmlWriter& XmlWriter::writeComment( StringRef text, XmlFormatting fmt ) {
        ensureTagClosed();
        if (shouldIndent(fmt)) {
            m_os << m_indent;
        }
        m_os << "<!-- " << text << " -->";
        applyFormatting(fmt);
        return *this;
    }

    void XmlWriter::writeStylesheetRef( StringRef url ) {
        m_os << R"(<?xml-stylesheet type="text/xsl" href=")" << url << R"("?>)" << '\n';
    }

    void XmlWriter::ensureTagClosed() {
        if( m_tagIsOpen ) {
            m_os << '>' << std::flush;
            newlineIfNecessary();
            m_tagIsOpen = false;
        }
    }

    void XmlWriter::applyFormatting(XmlFormatting fmt) {
        m_needsNewline = shouldNewline(fmt);
    }

    void XmlWriter::writeDeclaration() {
        m_os << R"(<?xml version="1.0" encoding="UTF-8"?>)" << '\n';
    }

    void XmlWriter::newlineIfNecessary() {
        if( m_needsNewline ) {
            m_os << '\n' << std::flush;
            m_needsNewline = false;
        }
    }
}





namespace Catch {
namespace Matchers {

    std::string MatcherUntypedBase::toString() const {
        if (m_cachedToString.empty()) {
            m_cachedToString = describe();
        }
        return m_cachedToString;
    }

    MatcherUntypedBase::~MatcherUntypedBase() = default;

} // namespace Matchers
} // namespace Catch




namespace Catch {
namespace Matchers {

    std::string IsEmptyMatcher::describe() const {
        return "is empty";
    }

    std::string HasSizeMatcher::describe() const {
        ReusableStringStream sstr;
        sstr << "has size == " << m_target_size;
        return sstr.str();
    }

    IsEmptyMatcher IsEmpty() {
        return {};
    }

    HasSizeMatcher SizeIs(std::size_t sz) {
        return HasSizeMatcher{ sz };
    }

} // end namespace Matchers
} // end namespace Catch



namespace Catch {
namespace Matchers {

bool ExceptionMessageMatcher::match(std::exception const& ex) const {
    return ex.what() == m_message;
}

std::string ExceptionMessageMatcher::describe() const {
    return "exception message matches \"" + m_message + '"';
}

ExceptionMessageMatcher Message(std::string const& message) {
    return ExceptionMessageMatcher(message);
}

} // namespace Matchers
} // namespace Catch



#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <cstdint>
#include <sstream>
#include <iomanip>
#include <limits>


namespace Catch {
namespace {

    template <typename FP>
    bool almostEqualUlps(FP lhs, FP rhs, uint64_t maxUlpDiff) {
        // Comparison with NaN should always be false.
        // This way we can rule it out before getting into the ugly details
        if (Catch::isnan(lhs) || Catch::isnan(rhs)) {
            return false;
        }

        // This should also handle positive and negative zeros, infinities
        const auto ulpDist = ulpDistance(lhs, rhs);

        return ulpDist <= maxUlpDiff;
    }

#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)

    float nextafter(float x, float y) {
        return ::nextafterf(x, y);
    }

    double nextafter(double x, double y) {
        return ::nextafter(x, y);
    }

#endif // ^^^ CATCH_CONFIG_GLOBAL_NEXTAFTER ^^^

template <typename FP>
FP step(FP start, FP direction, uint64_t steps) {
    for (uint64_t i = 0; i < steps; ++i) {
#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
        start = Catch::nextafter(start, direction);
#else
        start = std::nextafter(start, direction);
#endif
    }
    return start;
}

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool marginComparison(double lhs, double rhs, double margin) {
    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
}

template <typename FloatingPoint>
void write(std::ostream& out, FloatingPoint num) {
    out << std::scientific
        << std::setprecision(std::numeric_limits<FloatingPoint>::max_digits10 - 1)
        << num;
}

} // end anonymous namespace

namespace Matchers {
namespace Detail {

    enum class FloatingPointKind : uint8_t {
        Float,
        Double
    };

} // end namespace Detail


    WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
        :m_target{ target }, m_margin{ margin } {
        CATCH_ENFORCE(margin >= 0, "Invalid margin: " << margin << '.'
            << " Margin has to be non-negative.");
    }

    // Performs equivalent check of std::fabs(lhs - rhs) <= margin
    // But without the subtraction to allow for INFINITY in comparison
    bool WithinAbsMatcher::match(double const& matchee) const {
        return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
    }

    std::string WithinAbsMatcher::describe() const {
        return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
    }


    WithinUlpsMatcher::WithinUlpsMatcher(double target, uint64_t ulps, Detail::FloatingPointKind baseType)
        :m_target{ target }, m_ulps{ ulps }, m_type{ baseType } {
        CATCH_ENFORCE(m_type == Detail::FloatingPointKind::Double
                   || m_ulps < (std::numeric_limits<uint32_t>::max)(),
            "Provided ULP is impossibly large for a float comparison.");
        CATCH_ENFORCE( std::numeric_limits<double>::is_iec559,
                       "WithinUlp matcher only supports platforms with "
                       "IEEE-754 compatible floating point representation" );
    }

#if defined(__clang__)
#pragma clang diagnostic push
// Clang <3.5 reports on the default branch in the switch below
#pragma clang diagnostic ignored "-Wunreachable-code"
#endif

    bool WithinUlpsMatcher::match(double const& matchee) const {
        switch (m_type) {
        case Detail::FloatingPointKind::Float:
            return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
        case Detail::FloatingPointKind::Double:
            return almostEqualUlps<double>(matchee, m_target, m_ulps);
        default:
            CATCH_INTERNAL_ERROR( "Unknown Detail::FloatingPointKind value" );
        }
    }

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

    std::string WithinUlpsMatcher::describe() const {
        std::stringstream ret;

        ret << "is within " << m_ulps << " ULPs of ";

        if (m_type == Detail::FloatingPointKind::Float) {
            write(ret, static_cast<float>(m_target));
            ret << 'f';
        } else {
            write(ret, m_target);
        }

        ret << " ([";
        if (m_type == Detail::FloatingPointKind::Double) {
            write( ret,
                   step( m_target,
                         -std::numeric_limits<double>::infinity(),
                         m_ulps ) );
            ret << ", ";
            write( ret,
                   step( m_target,
                         std::numeric_limits<double>::infinity(),
                         m_ulps ) );
        } else {
            // We have to cast INFINITY to float because of MinGW, see #1782
            write( ret,
                   step( static_cast<float>( m_target ),
                         -std::numeric_limits<float>::infinity(),
                         m_ulps ) );
            ret << ", ";
            write( ret,
                   step( static_cast<float>( m_target ),
                         std::numeric_limits<float>::infinity(),
                         m_ulps ) );
        }
        ret << "])";

        return ret.str();
    }

    WithinRelMatcher::WithinRelMatcher(double target, double epsilon):
        m_target(target),
        m_epsilon(epsilon){
        CATCH_ENFORCE(m_epsilon >= 0., "Relative comparison with epsilon <  0 does not make sense.");
        CATCH_ENFORCE(m_epsilon  < 1., "Relative comparison with epsilon >= 1 does not make sense.");
    }

    bool WithinRelMatcher::match(double const& matchee) const {
        const auto relMargin = m_epsilon * (std::max)(std::fabs(matchee), std::fabs(m_target));
        return marginComparison(matchee, m_target,
                                std::isinf(relMargin)? 0 : relMargin);
    }

    std::string WithinRelMatcher::describe() const {
        Catch::ReusableStringStream sstr;
        sstr << "and " << m_target << " are within " << m_epsilon * 100. << "% of each other";
        return sstr.str();
    }


WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff) {
    return WithinUlpsMatcher(target, maxUlpDiff, Detail::FloatingPointKind::Double);
}

WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff) {
    return WithinUlpsMatcher(target, maxUlpDiff, Detail::FloatingPointKind::Float);
}

WithinAbsMatcher WithinAbs(double target, double margin) {
    return WithinAbsMatcher(target, margin);
}

WithinRelMatcher WithinRel(double target, double eps) {
    return WithinRelMatcher(target, eps);
}

WithinRelMatcher WithinRel(double target) {
    return WithinRelMatcher(target, std::numeric_limits<double>::epsilon() * 100);
}

WithinRelMatcher WithinRel(float target, float eps) {
    return WithinRelMatcher(target, eps);
}

WithinRelMatcher WithinRel(float target) {
    return WithinRelMatcher(target, std::numeric_limits<float>::epsilon() * 100);
}



bool IsNaNMatcher::match( double const& matchee ) const {
    return std::isnan( matchee );
}

std::string IsNaNMatcher::describe() const {
    using namespace std::string_literals;
    return "is NaN"s;
}

IsNaNMatcher IsNaN() { return IsNaNMatcher(); }

    } // namespace Matchers
} // namespace Catch




std::string Catch::Matchers::Detail::finalizeDescription(const std::string& desc) {
    if (desc.empty()) {
        return "matches undescribed predicate";
    } else {
        return "matches predicate: \"" + desc + '"';
    }
}



namespace Catch {
    namespace Matchers {
        std::string AllTrueMatcher::describe() const { return "contains only true"; }

        AllTrueMatcher AllTrue() { return AllTrueMatcher{}; }

        std::string NoneTrueMatcher::describe() const { return "contains no true"; }

        NoneTrueMatcher NoneTrue() { return NoneTrueMatcher{}; }

        std::string AnyTrueMatcher::describe() const { return "contains at least one true"; }

        AnyTrueMatcher AnyTrue() { return AnyTrueMatcher{}; }
    } // namespace Matchers
} // namespace Catch



#include <regex>

namespace Catch {
namespace Matchers {

    CasedString::CasedString( std::string const& str, CaseSensitive caseSensitivity )
    :   m_caseSensitivity( caseSensitivity ),
        m_str( adjustString( str ) )
    {}
    std::string CasedString::adjustString( std::string const& str ) const {
        return m_caseSensitivity == CaseSensitive::No
               ? toLower( str )
               : str;
    }
    StringRef CasedString::caseSensitivitySuffix() const {
        return m_caseSensitivity == CaseSensitive::Yes
                   ? StringRef()
                   : " (case insensitive)"_sr;
    }


    StringMatcherBase::StringMatcherBase( StringRef operation, CasedString const& comparator )
    : m_comparator( comparator ),
      m_operation( operation ) {
    }

    std::string StringMatcherBase::describe() const {
        std::string description;
        description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
                                    m_comparator.caseSensitivitySuffix().size());
        description += m_operation;
        description += ": \"";
        description += m_comparator.m_str;
        description += '"';
        description += m_comparator.caseSensitivitySuffix();
        return description;
    }

    StringEqualsMatcher::StringEqualsMatcher( CasedString const& comparator ) : StringMatcherBase( "equals"_sr, comparator ) {}

    bool StringEqualsMatcher::match( std::string const& source ) const {
        return m_comparator.adjustString( source ) == m_comparator.m_str;
    }


    StringContainsMatcher::StringContainsMatcher( CasedString const& comparator ) : StringMatcherBase( "contains"_sr, comparator ) {}

    bool StringContainsMatcher::match( std::string const& source ) const {
        return contains( m_comparator.adjustString( source ), m_comparator.m_str );
    }


    StartsWithMatcher::StartsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "starts with"_sr, comparator ) {}

    bool StartsWithMatcher::match( std::string const& source ) const {
        return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
    }


    EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with"_sr, comparator ) {}

    bool EndsWithMatcher::match( std::string const& source ) const {
        return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
    }



    RegexMatcher::RegexMatcher(std::string regex, CaseSensitive caseSensitivity): m_regex(CATCH_MOVE(regex)), m_caseSensitivity(caseSensitivity) {}

    bool RegexMatcher::match(std::string const& matchee) const {
        auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
        if (m_caseSensitivity == CaseSensitive::No) {
            flags |= std::regex::icase;
        }
        auto reg = std::regex(m_regex, flags);
        return std::regex_match(matchee, reg);
    }

    std::string RegexMatcher::describe() const {
        return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Yes)? " case sensitively" : " case insensitively");
    }


    StringEqualsMatcher Equals( std::string const& str, CaseSensitive caseSensitivity ) {
        return StringEqualsMatcher( CasedString( str, caseSensitivity) );
    }
    StringContainsMatcher ContainsSubstring( std::string const& str, CaseSensitive caseSensitivity ) {
        return StringContainsMatcher( CasedString( str, caseSensitivity) );
    }
    EndsWithMatcher EndsWith( std::string const& str, CaseSensitive caseSensitivity ) {
        return EndsWithMatcher( CasedString( str, caseSensitivity) );
    }
    StartsWithMatcher StartsWith( std::string const& str, CaseSensitive caseSensitivity ) {
        return StartsWithMatcher( CasedString( str, caseSensitivity) );
    }

    RegexMatcher Matches(std::string const& regex, CaseSensitive caseSensitivity) {
        return RegexMatcher(regex, caseSensitivity);
    }

} // namespace Matchers
} // namespace Catch



namespace Catch {
namespace Matchers {
    MatcherGenericBase::~MatcherGenericBase() = default;

    namespace Detail {

        std::string describe_multi_matcher(StringRef combine, std::string const* descriptions_begin, std::string const* descriptions_end) {
            std::string description;
            std::size_t combined_size = 4;
            for ( auto desc = descriptions_begin; desc != descriptions_end; ++desc ) {
                combined_size += desc->size();
            }
            combined_size += static_cast<size_t>(descriptions_end - descriptions_begin - 1) * combine.size();

            description.reserve(combined_size);

            description += "( ";
            bool first = true;
            for( auto desc = descriptions_begin; desc != descriptions_end; ++desc ) {
                if( first )
                    first = false;
                else
                    description += combine;
                description += *desc;
            }
            description += " )";
            return description;
        }

    } // namespace Detail
} // namespace Matchers
} // namespace Catch




namespace Catch {

    // This is the general overload that takes a any string matcher
    // There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
    // the Equals matcher (so the header does not mention matchers)
    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher ) {
        std::string exceptionMessage = Catch::translateActiveException();
        MatchExpr<std::string, StringMatcher const&> expr( CATCH_MOVE(exceptionMessage), matcher );
        handler.handleExpr( expr );
    }

} // namespace Catch



#include <ostream>

namespace Catch {

    AutomakeReporter::~AutomakeReporter() {}

    void AutomakeReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
        // Possible values to emit are PASS, XFAIL, SKIP, FAIL, XPASS and ERROR.
        m_stream << ":test-result: ";
        if ( _testCaseStats.totals.testCases.skipped > 0 ) {
            m_stream << "SKIP";
        } else if (_testCaseStats.totals.assertions.allPassed()) {
            m_stream << "PASS";
        } else if (_testCaseStats.totals.assertions.allOk()) {
            m_stream << "XFAIL";
        } else {
            m_stream << "FAIL";
        }
        m_stream << ' ' << _testCaseStats.testInfo->name << '\n';
        StreamingReporterBase::testCaseEnded(_testCaseStats);
    }

    void AutomakeReporter::skipTest(TestCaseInfo const& testInfo) {
        m_stream << ":test-result: SKIP " << testInfo.name << '\n';
    }

} // end namespace Catch






namespace Catch {
    ReporterBase::ReporterBase( ReporterConfig&& config ):
        IEventListener( config.fullConfig() ),
        m_wrapped_stream( CATCH_MOVE(config).takeStream() ),
        m_stream( m_wrapped_stream->stream() ),
        m_colour( makeColourImpl( config.colourMode(), m_wrapped_stream.get() ) ),
        m_customOptions( config.customOptions() )
    {}

    ReporterBase::~ReporterBase() = default;

    void ReporterBase::listReporters(
        std::vector<ReporterDescription> const& descriptions ) {
        defaultListReporters(m_stream, descriptions, m_config->verbosity());
    }

    void ReporterBase::listListeners(
        std::vector<ListenerDescription> const& descriptions ) {
        defaultListListeners( m_stream, descriptions );
    }

    void ReporterBase::listTests(std::vector<TestCaseHandle> const& tests) {
        defaultListTests(m_stream,
                         m_colour.get(),
                         tests,
                         m_config->hasTestFilters(),
                         m_config->verbosity());
    }

    void ReporterBase::listTags(std::vector<TagInfo> const& tags) {
        defaultListTags( m_stream, tags, m_config->hasTestFilters() );
    }

} // namespace Catch




#include <ostream>

namespace Catch {
namespace {

    // Colour::LightGrey
    static constexpr Colour::Code compactDimColour = Colour::FileName;

#ifdef CATCH_PLATFORM_MAC
    static constexpr Catch::StringRef compactFailedString = "FAILED"_sr;
    static constexpr Catch::StringRef compactPassedString = "PASSED"_sr;
#else
    static constexpr Catch::StringRef compactFailedString = "failed"_sr;
    static constexpr Catch::StringRef compactPassedString = "passed"_sr;
#endif

// Implementation of CompactReporter formatting
class AssertionPrinter {
public:
    AssertionPrinter& operator= (AssertionPrinter const&) = delete;
    AssertionPrinter(AssertionPrinter const&) = delete;
    AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages, ColourImpl* colourImpl_)
        : stream(_stream)
        , result(_stats.assertionResult)
        , messages(_stats.infoMessages)
        , itMessage(_stats.infoMessages.begin())
        , printInfoMessages(_printInfoMessages)
        , colourImpl(colourImpl_)
    {}

    void print() {
        printSourceInfo();

        itMessage = messages.begin();

        switch (result.getResultType()) {
        case ResultWas::Ok:
            printResultType(Colour::ResultSuccess, compactPassedString);
            printOriginalExpression();
            printReconstructedExpression();
            if (!result.hasExpression())
                printRemainingMessages(Colour::None);
            else
                printRemainingMessages();
            break;
        case ResultWas::ExpressionFailed:
            if (result.isOk())
                printResultType(Colour::ResultSuccess, compactFailedString + " - but was ok"_sr);
            else
                printResultType(Colour::Error, compactFailedString);
            printOriginalExpression();
            printReconstructedExpression();
            printRemainingMessages();
            break;
        case ResultWas::ThrewException:
            printResultType(Colour::Error, compactFailedString);
            printIssue("unexpected exception with message:");
            printMessage();
            printExpressionWas();
            printRemainingMessages();
            break;
        case ResultWas::FatalErrorCondition:
            printResultType(Colour::Error, compactFailedString);
            printIssue("fatal error condition with message:");
            printMessage();
            printExpressionWas();
            printRemainingMessages();
            break;
        case ResultWas::DidntThrowException:
            printResultType(Colour::Error, compactFailedString);
            printIssue("expected exception, got none");
            printExpressionWas();
            printRemainingMessages();
            break;
        case ResultWas::Info:
            printResultType(Colour::None, "info"_sr);
            printMessage();
            printRemainingMessages();
            break;
        case ResultWas::Warning:
            printResultType(Colour::None, "warning"_sr);
            printMessage();
            printRemainingMessages();
            break;
        case ResultWas::ExplicitFailure:
            printResultType(Colour::Error, compactFailedString);
            printIssue("explicitly");
            printRemainingMessages(Colour::None);
            break;
        case ResultWas::ExplicitSkip:
            printResultType(Colour::Skip, "skipped"_sr);
            printMessage();
            printRemainingMessages();
            break;
            // These cases are here to prevent compiler warnings
        case ResultWas::Unknown:
        case ResultWas::FailureBit:
        case ResultWas::Exception:
            printResultType(Colour::Error, "** internal error **");
            break;
        }
    }

private:
    void printSourceInfo() const {
        stream << colourImpl->guardColour( Colour::FileName )
               << result.getSourceInfo() << ':';
    }

    void printResultType(Colour::Code colour, StringRef passOrFail) const {
        if (!passOrFail.empty()) {
            stream << colourImpl->guardColour(colour) << ' ' << passOrFail;
            stream << ':';
        }
    }

    void printIssue(char const* issue) const {
        stream << ' ' << issue;
    }

    void printExpressionWas() {
        if (result.hasExpression()) {
            stream << ';';
            {
                stream << colourImpl->guardColour(compactDimColour) << " expression was:";
            }
            printOriginalExpression();
        }
    }

    void printOriginalExpression() const {
        if (result.hasExpression()) {
            stream << ' ' << result.getExpression();
        }
    }

    void printReconstructedExpression() const {
        if (result.hasExpandedExpression()) {
            stream << colourImpl->guardColour(compactDimColour) << " for: ";
            stream << result.getExpandedExpression();
        }
    }

    void printMessage() {
        if (itMessage != messages.end()) {
            stream << " '" << itMessage->message << '\'';
            ++itMessage;
        }
    }

    void printRemainingMessages(Colour::Code colour = compactDimColour) {
        if (itMessage == messages.end())
            return;

        const auto itEnd = messages.cend();
        const auto N = static_cast<std::size_t>(itEnd - itMessage);

        stream << colourImpl->guardColour( colour ) << " with "
               << pluralise( N, "message"_sr ) << ':';

        while (itMessage != itEnd) {
            // If this assertion is a warning ignore any INFO messages
            if (printInfoMessages || itMessage->type != ResultWas::Info) {
                printMessage();
                if (itMessage != itEnd) {
                    stream << colourImpl->guardColour(compactDimColour) << " and";
                }
                continue;
            }
            ++itMessage;
        }
    }

private:
    std::ostream& stream;
    AssertionResult const& result;
    std::vector<MessageInfo> const& messages;
    std::vector<MessageInfo>::const_iterator itMessage;
    bool printInfoMessages;
    ColourImpl* colourImpl;
};

} // anon namespace

        std::string CompactReporter::getDescription() {
            return "Reports test results on a single line, suitable for IDEs";
        }

        void CompactReporter::noMatchingTestCases( StringRef unmatchedSpec ) {
            m_stream << "No test cases matched '" << unmatchedSpec << "'\n";
        }

        void CompactReporter::testRunStarting( TestRunInfo const& ) {
            if ( m_config->testSpec().hasFilters() ) {
                m_stream << m_colour->guardColour( Colour::BrightYellow )
                         << "Filters: "
                         << m_config->testSpec()
                         << '\n';
            }
            m_stream << "RNG seed: " << getSeed() << '\n';
        }

        void CompactReporter::assertionEnded( AssertionStats const& _assertionStats ) {
            AssertionResult const& result = _assertionStats.assertionResult;

            bool printInfoMessages = true;

            // Drop out if result was successful and we're not printing those
            if( !m_config->includeSuccessfulResults() && result.isOk() ) {
                if( result.getResultType() != ResultWas::Warning && result.getResultType() != ResultWas::ExplicitSkip )
                    return;
                printInfoMessages = false;
            }

            AssertionPrinter printer( m_stream, _assertionStats, printInfoMessages, m_colour.get() );
            printer.print();

            m_stream << '\n' << std::flush;
        }

        void CompactReporter::sectionEnded(SectionStats const& _sectionStats) {
            double dur = _sectionStats.durationInSeconds;
            if ( shouldShowDuration( *m_config, dur ) ) {
                m_stream << getFormattedDuration( dur ) << " s: " << _sectionStats.sectionInfo.name << '\n' << std::flush;
            }
        }

        void CompactReporter::testRunEnded( TestRunStats const& _testRunStats ) {
            printTestRunTotals( m_stream, *m_colour, _testRunStats.totals );
            m_stream << "\n\n" << std::flush;
            StreamingReporterBase::testRunEnded( _testRunStats );
        }

        CompactReporter::~CompactReporter() {}

} // end namespace Catch




#include <cstdio>

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
 // Note that 4062 (not all labels are handled and default is missing) is enabled
#endif

#if defined(__clang__)
#  pragma clang diagnostic push
// For simplicity, benchmarking-only helpers are always enabled
#  pragma clang diagnostic ignored "-Wunused-function"
#endif



namespace Catch {

namespace {

// Formatter impl for ConsoleReporter
class ConsoleAssertionPrinter {
public:
    ConsoleAssertionPrinter& operator= (ConsoleAssertionPrinter const&) = delete;
    ConsoleAssertionPrinter(ConsoleAssertionPrinter const&) = delete;
    ConsoleAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, ColourImpl* colourImpl_, bool _printInfoMessages)
        : stream(_stream),
        stats(_stats),
        result(_stats.assertionResult),
        colour(Colour::None),
        messages(_stats.infoMessages),
        colourImpl(colourImpl_),
        printInfoMessages(_printInfoMessages) {
        switch (result.getResultType()) {
        case ResultWas::Ok:
            colour = Colour::Success;
            passOrFail = "PASSED"_sr;
            //if( result.hasMessage() )
            if (messages.size() == 1)
                messageLabel = "with message"_sr;
            if (messages.size() > 1)
                messageLabel = "with messages"_sr;
            break;
        case ResultWas::ExpressionFailed:
            if (result.isOk()) {
                colour = Colour::Success;
                passOrFail = "FAILED - but was ok"_sr;
            } else {
                colour = Colour::Error;
                passOrFail = "FAILED"_sr;
            }
            if (messages.size() == 1)
                messageLabel = "with message"_sr;
            if (messages.size() > 1)
                messageLabel = "with messages"_sr;
            break;
        case ResultWas::ThrewException:
            colour = Colour::Error;
            passOrFail = "FAILED"_sr;
            // todo switch
            switch (messages.size()) { case 0:
                messageLabel = "due to unexpected exception with "_sr;
                break;
            case 1:
                messageLabel = "due to unexpected exception with message"_sr;
                break;
            default:
                messageLabel = "due to unexpected exception with messages"_sr;
                break;
            }
            break;
        case ResultWas::FatalErrorCondition:
            colour = Colour::Error;
            passOrFail = "FAILED"_sr;
            messageLabel = "due to a fatal error condition"_sr;
            break;
        case ResultWas::DidntThrowException:
            colour = Colour::Error;
            passOrFail = "FAILED"_sr;
            messageLabel = "because no exception was thrown where one was expected"_sr;
            break;
        case ResultWas::Info:
            messageLabel = "info"_sr;
            break;
        case ResultWas::Warning:
            messageLabel = "warning"_sr;
            break;
        case ResultWas::ExplicitFailure:
            passOrFail = "FAILED"_sr;
            colour = Colour::Error;
            if (messages.size() == 1)
                messageLabel = "explicitly with message"_sr;
            if (messages.size() > 1)
                messageLabel = "explicitly with messages"_sr;
            break;
        case ResultWas::ExplicitSkip:
            colour = Colour::Skip;
            passOrFail = "SKIPPED"_sr;
            if (messages.size() == 1)
                messageLabel = "explicitly with message"_sr;
            if (messages.size() > 1)
                messageLabel = "explicitly with messages"_sr;
            break;
            // These cases are here to prevent compiler warnings
        case ResultWas::Unknown:
        case ResultWas::FailureBit:
        case ResultWas::Exception:
            passOrFail = "** internal error **"_sr;
            colour = Colour::Error;
            break;
        }
    }

    void print() const {
        printSourceInfo();
        if (stats.totals.assertions.total() > 0) {
            printResultType();
            printOriginalExpression();
            printReconstructedExpression();
        } else {
            stream << '\n';
        }
        printMessage();
    }

private:
    void printResultType() const {
        if (!passOrFail.empty()) {
            stream << colourImpl->guardColour(colour) << passOrFail << ":\n";
        }
    }
    void printOriginalExpression() const {
        if (result.hasExpression()) {
            stream << colourImpl->guardColour( Colour::OriginalExpression )
                   << "  " << result.getExpressionInMacro() << '\n';
        }
    }
    void printReconstructedExpression() const {
        if (result.hasExpandedExpression()) {
            stream << "with expansion:\n";
            stream << colourImpl->guardColour( Colour::ReconstructedExpression )
                   << TextFlow::Column( result.getExpandedExpression() )
                          .indent( 2 )
                   << '\n';
        }
    }
    void printMessage() const {
        if (!messageLabel.empty())
            stream << messageLabel << ':' << '\n';
        for (auto const& msg : messages) {
            // If this assertion is a warning ignore any INFO messages
            if (printInfoMessages || msg.type != ResultWas::Info)
                stream << TextFlow::Column(msg.message).indent(2) << '\n';
        }
    }
    void printSourceInfo() const {
        stream << colourImpl->guardColour( Colour::FileName )
               << result.getSourceInfo() << ": ";
    }

    std::ostream& stream;
    AssertionStats const& stats;
    AssertionResult const& result;
    Colour::Code colour;
    StringRef passOrFail;
    StringRef messageLabel;
    std::vector<MessageInfo> const& messages;
    ColourImpl* colourImpl;
    bool printInfoMessages;
};

std::size_t makeRatio( std::uint64_t number, std::uint64_t total ) {
    const auto ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
    return (ratio == 0 && number > 0) ? 1 : static_cast<std::size_t>(ratio);
}

std::size_t&
findMax( std::size_t& i, std::size_t& j, std::size_t& k, std::size_t& l ) {
    if (i > j && i > k && i > l)
        return i;
    else if (j > k && j > l)
        return j;
    else if (k > l)
        return k;
    else
        return l;
}

enum class Justification { Left, Right };

struct ColumnInfo {
    std::string name;
    std::size_t width;
    Justification justification;
};
struct ColumnBreak {};
struct RowBreak {};

class Duration {
    enum class Unit {
        Auto,
        Nanoseconds,
        Microseconds,
        Milliseconds,
        Seconds,
        Minutes
    };
    static const uint64_t s_nanosecondsInAMicrosecond = 1000;
    static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
    static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
    static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

    double m_inNanoseconds;
    Unit m_units;

public:
    explicit Duration(double inNanoseconds, Unit units = Unit::Auto)
        : m_inNanoseconds(inNanoseconds),
        m_units(units) {
        if (m_units == Unit::Auto) {
            if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
                m_units = Unit::Nanoseconds;
            else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
                m_units = Unit::Microseconds;
            else if (m_inNanoseconds < s_nanosecondsInASecond)
                m_units = Unit::Milliseconds;
            else if (m_inNanoseconds < s_nanosecondsInAMinute)
                m_units = Unit::Seconds;
            else
                m_units = Unit::Minutes;
        }

    }

    auto value() const -> double {
        switch (m_units) {
        case Unit::Microseconds:
            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
        case Unit::Milliseconds:
            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
        case Unit::Seconds:
            return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
        case Unit::Minutes:
            return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
        default:
            return m_inNanoseconds;
        }
    }
    StringRef unitsAsString() const {
        switch (m_units) {
        case Unit::Nanoseconds:
            return "ns"_sr;
        case Unit::Microseconds:
            return "us"_sr;
        case Unit::Milliseconds:
            return "ms"_sr;
        case Unit::Seconds:
            return "s"_sr;
        case Unit::Minutes:
            return "m"_sr;
        default:
            return "** internal error **"_sr;
        }

    }
    friend auto operator << (std::ostream& os, Duration const& duration) -> std::ostream& {
        return os << duration.value() << ' ' << duration.unitsAsString();
    }
};
} // end anon namespace

class TablePrinter {
    std::ostream& m_os;
    std::vector<ColumnInfo> m_columnInfos;
    ReusableStringStream m_oss;
    int m_currentColumn = -1;
    bool m_isOpen = false;

public:
    TablePrinter( std::ostream& os, std::vector<ColumnInfo> columnInfos )
    :   m_os( os ),
        m_columnInfos( CATCH_MOVE( columnInfos ) ) {}

    auto columnInfos() const -> std::vector<ColumnInfo> const& {
        return m_columnInfos;
    }

    void open() {
        if (!m_isOpen) {
            m_isOpen = true;
            *this << RowBreak();

			TextFlow::Columns headerCols;
			auto spacer = TextFlow::Spacer(2);
			for (auto const& info : m_columnInfos) {
                assert(info.width > 2);
				headerCols += TextFlow::Column(info.name).width(info.width - 2);
				headerCols += spacer;
			}
			m_os << headerCols << '\n';

            m_os << lineOfChars('-') << '\n';
        }
    }
    void close() {
        if (m_isOpen) {
            *this << RowBreak();
            m_os << '\n' << std::flush;
            m_isOpen = false;
        }
    }

    template<typename T>
    friend TablePrinter& operator << (TablePrinter& tp, T const& value) {
        tp.m_oss << value;
        return tp;
    }

    friend TablePrinter& operator << (TablePrinter& tp, ColumnBreak) {
        auto colStr = tp.m_oss.str();
        const auto strSize = colStr.size();
        tp.m_oss.str("");
        tp.open();
        if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
            tp.m_currentColumn = -1;
            tp.m_os << '\n';
        }
        tp.m_currentColumn++;

        auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
        auto padding = (strSize + 1 < colInfo.width)
            ? std::string(colInfo.width - (strSize + 1), ' ')
            : std::string();
        if (colInfo.justification == Justification::Left)
            tp.m_os << colStr << padding << ' ';
        else
            tp.m_os << padding << colStr << ' ';
        return tp;
    }

    friend TablePrinter& operator << (TablePrinter& tp, RowBreak) {
        if (tp.m_currentColumn > 0) {
            tp.m_os << '\n';
            tp.m_currentColumn = -1;
        }
        return tp;
    }
};

ConsoleReporter::ConsoleReporter(ReporterConfig&& config):
    StreamingReporterBase( CATCH_MOVE( config ) ),
    m_tablePrinter(Detail::make_unique<TablePrinter>(m_stream,
        [&config]() -> std::vector<ColumnInfo> {
        if (config.fullConfig()->benchmarkNoAnalysis())
        {
            return{
                { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 43, Justification::Left },
                { "     samples", 14, Justification::Right },
                { "  iterations", 14, Justification::Right },
                { "        mean", 14, Justification::Right }
            };
        }
        else
        {
            return{
                { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 43, Justification::Left },
                { "samples      mean       std dev", 14, Justification::Right },
                { "iterations   low mean   low std dev", 14, Justification::Right },
                { "estimated    high mean  high std dev", 14, Justification::Right }
            };
        }
    }())) {}
ConsoleReporter::~ConsoleReporter() = default;

std::string ConsoleReporter::getDescription() {
    return "Reports test results as plain lines of text";
}

void ConsoleReporter::noMatchingTestCases( StringRef unmatchedSpec ) {
    m_stream << "No test cases matched '" << unmatchedSpec << "'\n";
}

void ConsoleReporter::reportInvalidTestSpec( StringRef arg ) {
    m_stream << "Invalid Filter: " << arg << '\n';
}

void ConsoleReporter::assertionStarting(AssertionInfo const&) {}

void ConsoleReporter::assertionEnded(AssertionStats const& _assertionStats) {
    AssertionResult const& result = _assertionStats.assertionResult;

    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

    // Drop out if result was successful but we're not printing them.
    // TODO: Make configurable whether skips should be printed
    if (!includeResults && result.getResultType() != ResultWas::Warning && result.getResultType() != ResultWas::ExplicitSkip)
        return;

    lazyPrint();

    ConsoleAssertionPrinter printer(m_stream, _assertionStats, m_colour.get(), includeResults);
    printer.print();
    m_stream << '\n' << std::flush;
}

void ConsoleReporter::sectionStarting(SectionInfo const& _sectionInfo) {
    m_tablePrinter->close();
    m_headerPrinted = false;
    StreamingReporterBase::sectionStarting(_sectionInfo);
}
void ConsoleReporter::sectionEnded(SectionStats const& _sectionStats) {
    m_tablePrinter->close();
    if (_sectionStats.missingAssertions) {
        lazyPrint();
        auto guard =
            m_colour->guardColour( Colour::ResultError ).engage( m_stream );
        if (m_sectionStack.size() > 1)
            m_stream << "\nNo assertions in section";
        else
            m_stream << "\nNo assertions in test case";
        m_stream << " '" << _sectionStats.sectionInfo.name << "'\n\n" << std::flush;
    }
    double dur = _sectionStats.durationInSeconds;
    if (shouldShowDuration(*m_config, dur)) {
        m_stream << getFormattedDuration(dur) << " s: " << _sectionStats.sectionInfo.name << '\n' << std::flush;
    }
    if (m_headerPrinted) {
        m_headerPrinted = false;
    }
    StreamingReporterBase::sectionEnded(_sectionStats);
}

void ConsoleReporter::benchmarkPreparing( StringRef name ) {
	lazyPrintWithoutClosingBenchmarkTable();

	auto nameCol = TextFlow::Column( static_cast<std::string>( name ) )
                       .width( m_tablePrinter->columnInfos()[0].width - 2 );

	bool firstLine = true;
	for (auto line : nameCol) {
		if (!firstLine)
			(*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
		else
			firstLine = false;

		(*m_tablePrinter) << line << ColumnBreak();
	}
}

void ConsoleReporter::benchmarkStarting(BenchmarkInfo const& info) {
    (*m_tablePrinter) << info.samples << ColumnBreak()
        << info.iterations << ColumnBreak();
    if (!m_config->benchmarkNoAnalysis())
        (*m_tablePrinter) << Duration(info.estimatedDuration) << ColumnBreak();
}
void ConsoleReporter::benchmarkEnded(BenchmarkStats<> const& stats) {
    if (m_config->benchmarkNoAnalysis())
    {
        (*m_tablePrinter) << Duration(stats.mean.point.count()) << ColumnBreak();
    }
    else
    {
        (*m_tablePrinter) << ColumnBreak()
            << Duration(stats.mean.point.count()) << ColumnBreak()
            << Duration(stats.mean.lower_bound.count()) << ColumnBreak()
            << Duration(stats.mean.upper_bound.count()) << ColumnBreak() << ColumnBreak()
            << Duration(stats.standardDeviation.point.count()) << ColumnBreak()
            << Duration(stats.standardDeviation.lower_bound.count()) << ColumnBreak()
            << Duration(stats.standardDeviation.upper_bound.count()) << ColumnBreak() << ColumnBreak() << ColumnBreak() << ColumnBreak() << ColumnBreak();
    }
}

void ConsoleReporter::benchmarkFailed( StringRef error ) {
    auto guard = m_colour->guardColour( Colour::Red ).engage( m_stream );
    (*m_tablePrinter)
        << "Benchmark failed (" << error << ')'
        << ColumnBreak() << RowBreak();
}

void ConsoleReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
    m_tablePrinter->close();
    StreamingReporterBase::testCaseEnded(_testCaseStats);
    m_headerPrinted = false;
}
void ConsoleReporter::testRunEnded(TestRunStats const& _testRunStats) {
    printTotalsDivider(_testRunStats.totals);
    printTestRunTotals( m_stream, *m_colour, _testRunStats.totals );
    m_stream << '\n' << std::flush;
    StreamingReporterBase::testRunEnded(_testRunStats);
}
void ConsoleReporter::testRunStarting(TestRunInfo const& _testInfo) {
    StreamingReporterBase::testRunStarting(_testInfo);
    if ( m_config->testSpec().hasFilters() ) {
        m_stream << m_colour->guardColour( Colour::BrightYellow ) << "Filters: "
                 << m_config->testSpec() << '\n';
    }
    m_stream << "Randomness seeded to: " << getSeed() << '\n';
}

void ConsoleReporter::lazyPrint() {

    m_tablePrinter->close();
    lazyPrintWithoutClosingBenchmarkTable();
}

void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {

    if ( !m_testRunInfoPrinted ) {
        lazyPrintRunInfo();
    }
    if (!m_headerPrinted) {
        printTestCaseAndSectionHeader();
        m_headerPrinted = true;
    }
}
void ConsoleReporter::lazyPrintRunInfo() {
    m_stream << '\n'
             << lineOfChars( '~' ) << '\n'
             << m_colour->guardColour( Colour::SecondaryText )
             << currentTestRunInfo.name << " is a Catch2 v" << libraryVersion()
             << " host application.\n"
             << "Run with -? for options\n\n";

    m_testRunInfoPrinted = true;
}
void ConsoleReporter::printTestCaseAndSectionHeader() {
    assert(!m_sectionStack.empty());
    printOpenHeader(currentTestCaseInfo->name);

    if (m_sectionStack.size() > 1) {
        auto guard = m_colour->guardColour( Colour::Headers ).engage( m_stream );

        auto
            it = m_sectionStack.begin() + 1, // Skip first section (test case)
            itEnd = m_sectionStack.end();
        for (; it != itEnd; ++it)
            printHeaderString(it->name, 2);
    }

    SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;


    m_stream << lineOfChars( '-' ) << '\n'
             << m_colour->guardColour( Colour::FileName ) << lineInfo << '\n'
             << lineOfChars( '.' ) << "\n\n"
             << std::flush;
}

void ConsoleReporter::printClosedHeader(std::string const& _name) {
    printOpenHeader(_name);
    m_stream << lineOfChars('.') << '\n';
}
void ConsoleReporter::printOpenHeader(std::string const& _name) {
    m_stream << lineOfChars('-') << '\n';
    {
        auto guard = m_colour->guardColour( Colour::Headers ).engage( m_stream );
        printHeaderString(_name);
    }
}

void ConsoleReporter::printHeaderString(std::string const& _string, std::size_t indent) {
    // We want to get a bit fancy with line breaking here, so that subsequent
    // lines start after ":" if one is present, e.g.
    // ```
    // blablabla: Fancy
    //            linebreaking
    // ```
    // but we also want to avoid problems with overly long indentation causing
    // the text to take up too many lines, e.g.
    // ```
    // blablabla: F
    //            a
    //            n
    //            c
    //            y
    //            .
    //            .
    //            .
    // ```
    // So we limit the prefix indentation check to first quarter of the possible
    // width
    std::size_t idx = _string.find( ": " );
    if ( idx != std::string::npos && idx < CATCH_CONFIG_CONSOLE_WIDTH / 4 ) {
        idx += 2;
    } else {
        idx = 0;
    }
    m_stream << TextFlow::Column( _string )
                  .indent( indent + idx )
                  .initialIndent( indent )
           << '\n';
}

void ConsoleReporter::printTotalsDivider(Totals const& totals) {
    if (totals.testCases.total() > 0) {
        std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
        std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
        std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
        std::size_t skippedRatio = makeRatio(totals.testCases.skipped, totals.testCases.total());
        while (failedRatio + failedButOkRatio + passedRatio + skippedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
            findMax(failedRatio, failedButOkRatio, passedRatio, skippedRatio)++;
        while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
            findMax(failedRatio, failedButOkRatio, passedRatio, skippedRatio)--;

        m_stream << m_colour->guardColour( Colour::Error )
                 << std::string( failedRatio, '=' )
                 << m_colour->guardColour( Colour::ResultExpectedFailure )
                 << std::string( failedButOkRatio, '=' );
        if ( totals.testCases.allPassed() ) {
            m_stream << m_colour->guardColour( Colour::ResultSuccess )
                     << std::string( passedRatio, '=' );
        } else {
            m_stream << m_colour->guardColour( Colour::Success )
                     << std::string( passedRatio, '=' );
        }
        m_stream << m_colour->guardColour( Colour::Skip )
                 << std::string( skippedRatio, '=' );
    } else {
        m_stream << m_colour->guardColour( Colour::Warning )
                 << std::string( CATCH_CONFIG_CONSOLE_WIDTH - 1, '=' );
    }
    m_stream << '\n';
}

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

#if defined(__clang__)
#  pragma clang diagnostic pop
#endif




#include <algorithm>
#include <cassert>

namespace Catch {
    namespace {
        struct BySectionInfo {
            BySectionInfo( SectionInfo const& other ): m_other( other ) {}
            BySectionInfo( BySectionInfo const& other ):
                m_other( other.m_other ) {}
            bool operator()(
                Detail::unique_ptr<CumulativeReporterBase::SectionNode> const&
                    node ) const {
                return (
                    ( node->stats.sectionInfo.name == m_other.name ) &&
                    ( node->stats.sectionInfo.lineInfo == m_other.lineInfo ) );
            }
            void operator=( BySectionInfo const& ) = delete;

        private:
            SectionInfo const& m_other;
        };

    } // namespace

    namespace Detail {
        AssertionOrBenchmarkResult::AssertionOrBenchmarkResult(
            AssertionStats const& assertion ):
            m_assertion( assertion ) {}

        AssertionOrBenchmarkResult::AssertionOrBenchmarkResult(
            BenchmarkStats<> const& benchmark ):
            m_benchmark( benchmark ) {}

        bool AssertionOrBenchmarkResult::isAssertion() const {
            return m_assertion.some();
        }
        bool AssertionOrBenchmarkResult::isBenchmark() const {
            return m_benchmark.some();
        }

        AssertionStats const& AssertionOrBenchmarkResult::asAssertion() const {
            assert(m_assertion.some());

            return *m_assertion;
        }
        BenchmarkStats<> const& AssertionOrBenchmarkResult::asBenchmark() const {
            assert(m_benchmark.some());

            return *m_benchmark;
        }

    }

    CumulativeReporterBase::~CumulativeReporterBase() = default;

    void CumulativeReporterBase::benchmarkEnded(BenchmarkStats<> const& benchmarkStats) {
        m_sectionStack.back()->assertionsAndBenchmarks.emplace_back(benchmarkStats);
    }

    void
    CumulativeReporterBase::sectionStarting( SectionInfo const& sectionInfo ) {
        // We need a copy, because SectionStats expect to take ownership
        SectionStats incompleteStats( SectionInfo(sectionInfo), Counts(), 0, false );
        SectionNode* node;
        if ( m_sectionStack.empty() ) {
            if ( !m_rootSection ) {
                m_rootSection =
                    Detail::make_unique<SectionNode>( incompleteStats );
            }
            node = m_rootSection.get();
        } else {
            SectionNode& parentNode = *m_sectionStack.back();
            auto it = std::find_if( parentNode.childSections.begin(),
                                    parentNode.childSections.end(),
                                    BySectionInfo( sectionInfo ) );
            if ( it == parentNode.childSections.end() ) {
                auto newNode =
                    Detail::make_unique<SectionNode>( incompleteStats );
                node = newNode.get();
                parentNode.childSections.push_back( CATCH_MOVE( newNode ) );
            } else {
                node = it->get();
            }
        }

        m_deepestSection = node;
        m_sectionStack.push_back( node );
    }

    void CumulativeReporterBase::assertionEnded(
        AssertionStats const& assertionStats ) {
        assert( !m_sectionStack.empty() );
        // AssertionResult holds a pointer to a temporary DecomposedExpression,
        // which getExpandedExpression() calls to build the expression string.
        // Our section stack copy of the assertionResult will likely outlive the
        // temporary, so it must be expanded or discarded now to avoid calling
        // a destroyed object later.
        if ( m_shouldStoreFailedAssertions &&
             !assertionStats.assertionResult.isOk() ) {
            static_cast<void>(
                assertionStats.assertionResult.getExpandedExpression() );
        }
        if ( m_shouldStoreSuccesfulAssertions &&
             assertionStats.assertionResult.isOk() ) {
            static_cast<void>(
                assertionStats.assertionResult.getExpandedExpression() );
        }
        SectionNode& sectionNode = *m_sectionStack.back();
        sectionNode.assertionsAndBenchmarks.emplace_back( assertionStats );
    }

    void CumulativeReporterBase::sectionEnded( SectionStats const& sectionStats ) {
        assert( !m_sectionStack.empty() );
        SectionNode& node = *m_sectionStack.back();
        node.stats = sectionStats;
        m_sectionStack.pop_back();
    }

    void CumulativeReporterBase::testCaseEnded(
        TestCaseStats const& testCaseStats ) {
        auto node = Detail::make_unique<TestCaseNode>( testCaseStats );
        assert( m_sectionStack.size() == 0 );
        node->children.push_back( CATCH_MOVE(m_rootSection) );
        m_testCases.push_back( CATCH_MOVE(node) );

        assert( m_deepestSection );
        m_deepestSection->stdOut = testCaseStats.stdOut;
        m_deepestSection->stdErr = testCaseStats.stdErr;
    }


    void CumulativeReporterBase::testRunEnded( TestRunStats const& testRunStats ) {
        assert(!m_testRun && "CumulativeReporterBase assumes there can only be one test run");
        m_testRun = Detail::make_unique<TestRunNode>( testRunStats );
        m_testRun->children.swap( m_testCases );
        testRunEndedCumulative();
    }

    bool CumulativeReporterBase::SectionNode::hasAnyAssertions() const {
        return std::any_of(
            assertionsAndBenchmarks.begin(),
            assertionsAndBenchmarks.end(),
            []( Detail::AssertionOrBenchmarkResult const& res ) {
                return res.isAssertion();
            } );
    }

} // end namespace Catch




namespace Catch {

    void EventListenerBase::fatalErrorEncountered( StringRef ) {}

    void EventListenerBase::benchmarkPreparing( StringRef ) {}
    void EventListenerBase::benchmarkStarting( BenchmarkInfo const& ) {}
    void EventListenerBase::benchmarkEnded( BenchmarkStats<> const& ) {}
    void EventListenerBase::benchmarkFailed( StringRef ) {}

    void EventListenerBase::assertionStarting( AssertionInfo const& ) {}

    void EventListenerBase::assertionEnded( AssertionStats const& ) {}
    void EventListenerBase::listReporters(
        std::vector<ReporterDescription> const& ) {}
    void EventListenerBase::listListeners(
        std::vector<ListenerDescription> const& ) {}
    void EventListenerBase::listTests( std::vector<TestCaseHandle> const& ) {}
    void EventListenerBase::listTags( std::vector<TagInfo> const& ) {}
    void EventListenerBase::noMatchingTestCases( StringRef ) {}
    void EventListenerBase::reportInvalidTestSpec( StringRef ) {}
    void EventListenerBase::testRunStarting( TestRunInfo const& ) {}
    void EventListenerBase::testCaseStarting( TestCaseInfo const& ) {}
    void EventListenerBase::testCasePartialStarting(TestCaseInfo const&, uint64_t) {}
    void EventListenerBase::sectionStarting( SectionInfo const& ) {}
    void EventListenerBase::sectionEnded( SectionStats const& ) {}
    void EventListenerBase::testCasePartialEnded(TestCaseStats const&, uint64_t) {}
    void EventListenerBase::testCaseEnded( TestCaseStats const& ) {}
    void EventListenerBase::testRunEnded( TestRunStats const& ) {}
    void EventListenerBase::skipTest( TestCaseInfo const& ) {}
} // namespace Catch




#include <algorithm>
#include <cfloat>
#include <cstdio>
#include <ostream>
#include <iomanip>

namespace Catch {

    namespace {
        void listTestNamesOnly(std::ostream& out,
                               std::vector<TestCaseHandle> const& tests) {
            for (auto const& test : tests) {
                auto const& testCaseInfo = test.getTestCaseInfo();

                if (startsWith(testCaseInfo.name, '#')) {
                    out << '"' << testCaseInfo.name << '"';
                } else {
                    out << testCaseInfo.name;
                }

                out << '\n';
            }
            out << std::flush;
        }
    } // end unnamed namespace


    // Because formatting using c++ streams is stateful, drop down to C is
    // required Alternatively we could use stringstream, but its performance
    // is... not good.
    std::string getFormattedDuration( double duration ) {
        // Max exponent + 1 is required to represent the whole part
        // + 1 for decimal point
        // + 3 for the 3 decimal places
        // + 1 for null terminator
        const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
        char buffer[maxDoubleSize];

        // Save previous errno, to prevent sprintf from overwriting it
        ErrnoGuard guard;
#ifdef _MSC_VER
        size_t printedLength = static_cast<size_t>(
            sprintf_s( buffer, "%.3f", duration ) );
#else
        size_t printedLength = static_cast<size_t>(
            std::snprintf( buffer, maxDoubleSize, "%.3f", duration ) );
#endif
        return std::string( buffer, printedLength );
    }

    bool shouldShowDuration( IConfig const& config, double duration ) {
        if ( config.showDurations() == ShowDurations::Always ) {
            return true;
        }
        if ( config.showDurations() == ShowDurations::Never ) {
            return false;
        }
        const double min = config.minDuration();
        return min >= 0 && duration >= min;
    }

    std::string serializeFilters( std::vector<std::string> const& filters ) {
        // We add a ' ' separator between each filter
        size_t serialized_size = filters.size() - 1;
        for (auto const& filter : filters) {
            serialized_size += filter.size();
        }

        std::string serialized;
        serialized.reserve(serialized_size);
        bool first = true;

        for (auto const& filter : filters) {
            if (!first) {
                serialized.push_back(' ');
            }
            first = false;
            serialized.append(filter);
        }

        return serialized;
    }

    std::ostream& operator<<( std::ostream& out, lineOfChars value ) {
        for ( size_t idx = 0; idx < CATCH_CONFIG_CONSOLE_WIDTH - 1; ++idx ) {
            out.put( value.c );
        }
        return out;
    }

    void
    defaultListReporters( std::ostream& out,
                          std::vector<ReporterDescription> const& descriptions,
                          Verbosity verbosity ) {
        out << "Available reporters:\n";
        const auto maxNameLen =
            std::max_element( descriptions.begin(),
                              descriptions.end(),
                              []( ReporterDescription const& lhs,
                                  ReporterDescription const& rhs ) {
                                  return lhs.name.size() < rhs.name.size();
                              } )
                ->name.size();

        for ( auto const& desc : descriptions ) {
            if ( verbosity == Verbosity::Quiet ) {
                out << TextFlow::Column( desc.name )
                           .indent( 2 )
                           .width( 5 + maxNameLen )
                    << '\n';
            } else {
                out << TextFlow::Column( desc.name + ':' )
                               .indent( 2 )
                               .width( 5 + maxNameLen ) +
                           TextFlow::Column( desc.description )
                               .initialIndent( 0 )
                               .indent( 2 )
                               .width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8 )
                    << '\n';
            }
        }
        out << '\n' << std::flush;
    }

    void defaultListListeners( std::ostream& out,
                               std::vector<ListenerDescription> const& descriptions ) {
        out << "Registered listeners:\n";

        if(descriptions.empty()) {
            return;
        }

        const auto maxNameLen =
            std::max_element( descriptions.begin(),
                              descriptions.end(),
                              []( ListenerDescription const& lhs,
                                  ListenerDescription const& rhs ) {
                                  return lhs.name.size() < rhs.name.size();
                              } )
                ->name.size();

        for ( auto const& desc : descriptions ) {
            out << TextFlow::Column( static_cast<std::string>( desc.name ) +
                                     ':' )
                           .indent( 2 )
                           .width( maxNameLen + 5 ) +
                       TextFlow::Column( desc.description )
                           .initialIndent( 0 )
                           .indent( 2 )
                           .width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8 )
                << '\n';
        }

        out << '\n' << std::flush;
    }

    void defaultListTags( std::ostream& out,
                          std::vector<TagInfo> const& tags,
                          bool isFiltered ) {
        if ( isFiltered ) {
            out << "Tags for matching test cases:\n";
        } else {
            out << "All available tags:\n";
        }

        for ( auto const& tagCount : tags ) {
            ReusableStringStream rss;
            rss << "  " << std::setw( 2 ) << tagCount.count << "  ";
            auto str = rss.str();
            auto wrapper = TextFlow::Column( tagCount.all() )
                               .initialIndent( 0 )
                               .indent( str.size() )
                               .width( CATCH_CONFIG_CONSOLE_WIDTH - 10 );
            out << str << wrapper << '\n';
        }
        out << pluralise(tags.size(), "tag"_sr) << "\n\n" << std::flush;
    }

    void defaultListTests(std::ostream& out, ColourImpl* streamColour, std::vector<TestCaseHandle> const& tests, bool isFiltered, Verbosity verbosity) {
        // We special case this to provide the equivalent of old
        // `--list-test-names-only`, which could then be used by the
        // `--input-file` option.
        if (verbosity == Verbosity::Quiet) {
            listTestNamesOnly(out, tests);
            return;
        }

        if (isFiltered) {
            out << "Matching test cases:\n";
        } else {
            out << "All available test cases:\n";
        }

        for (auto const& test : tests) {
            auto const& testCaseInfo = test.getTestCaseInfo();
            Colour::Code colour = testCaseInfo.isHidden()
                ? Colour::SecondaryText
                : Colour::None;
            auto colourGuard = streamColour->guardColour( colour ).engage( out );

            out << TextFlow::Column(testCaseInfo.name).indent(2) << '\n';
            if (verbosity >= Verbosity::High) {
                out << TextFlow::Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4) << '\n';
            }
            if (!testCaseInfo.tags.empty() &&
                verbosity > Verbosity::Quiet) {
                out << TextFlow::Column(testCaseInfo.tagsAsString()).indent(6) << '\n';
            }
        }

        if (isFiltered) {
            out << pluralise(tests.size(), "matching test case"_sr);
        } else {
            out << pluralise(tests.size(), "test case"_sr);
        }
        out << "\n\n" << std::flush;
    }

    namespace {
        class SummaryColumn {
        public:
            SummaryColumn( std::string suffix, Colour::Code colour ):
                m_suffix( CATCH_MOVE( suffix ) ), m_colour( colour ) {}

            SummaryColumn&& addRow( std::uint64_t count ) && {
                std::string row = std::to_string(count);
                auto const new_width = std::max( m_width, row.size() );
                if ( new_width > m_width ) {
                    for ( auto& oldRow : m_rows ) {
                        oldRow.insert( 0, new_width - m_width, ' ' );
                    }
                } else {
                    row.insert( 0, m_width - row.size(), ' ' );
                }
                m_width = new_width;
                m_rows.push_back( row );
                return std::move( *this );
            }

            std::string const& getSuffix() const { return m_suffix; }
            Colour::Code getColour() const { return m_colour; }
            std::string const& getRow( std::size_t index ) const {
                return m_rows[index];
            }

        private:
            std::string m_suffix;
            Colour::Code m_colour;
            std::size_t m_width = 0;
            std::vector<std::string> m_rows;
        };

        void printSummaryRow( std::ostream& stream,
                              ColourImpl& colour,
                              StringRef label,
                              std::vector<SummaryColumn> const& cols,
                              std::size_t row ) {
            for ( auto const& col : cols ) {
                auto const& value = col.getRow( row );
                auto const& suffix = col.getSuffix();
                if ( suffix.empty() ) {
                    stream << label << ": ";
                    if ( value != "0" ) {
                        stream << value;
                    } else {
                        stream << colour.guardColour( Colour::Warning )
                               << "- none -";
                    }
                } else if ( value != "0" ) {
                    stream << colour.guardColour( Colour::LightGrey ) << " | "
                           << colour.guardColour( col.getColour() ) << value
                           << ' ' << suffix;
                }
            }
            stream << '\n';
        }
    } // namespace

    void printTestRunTotals( std::ostream& stream,
                             ColourImpl& streamColour,
                             Totals const& totals ) {
        if ( totals.testCases.total() == 0 ) {
            stream << streamColour.guardColour( Colour::Warning )
                   << "No tests ran\n";
            return;
        }

        if ( totals.assertions.total() > 0 && totals.testCases.allPassed() ) {
            stream << streamColour.guardColour( Colour::ResultSuccess )
                   << "All tests passed";
            stream << " ("
                   << pluralise( totals.assertions.passed, "assertion"_sr )
                   << " in "
                   << pluralise( totals.testCases.passed, "test case"_sr )
                   << ')' << '\n';
            return;
        }

        std::vector<SummaryColumn> columns;
        // Don't include "skipped assertions" in total count
        const auto totalAssertionCount =
            totals.assertions.total() - totals.assertions.skipped;
        columns.push_back( SummaryColumn( "", Colour::None )
                               .addRow( totals.testCases.total() )
                               .addRow( totalAssertionCount ) );
        columns.push_back( SummaryColumn( "passed", Colour::Success )
                               .addRow( totals.testCases.passed )
                               .addRow( totals.assertions.passed ) );
        columns.push_back( SummaryColumn( "failed", Colour::ResultError )
                               .addRow( totals.testCases.failed )
                               .addRow( totals.assertions.failed ) );
        columns.push_back( SummaryColumn( "skipped", Colour::Skip )
                               .addRow( totals.testCases.skipped )
                               // Don't print "skipped assertions"
                               .addRow( 0 ) );
        columns.push_back(
            SummaryColumn( "failed as expected", Colour::ResultExpectedFailure )
                .addRow( totals.testCases.failedButOk )
                .addRow( totals.assertions.failedButOk ) );
        printSummaryRow( stream, streamColour, "test cases"_sr, columns, 0 );
        printSummaryRow( stream, streamColour, "assertions"_sr, columns, 1 );
    }

} // namespace Catch




#include <cassert>
#include <ctime>
#include <algorithm>
#include <iomanip>

namespace Catch {

    namespace {
        std::string getCurrentTimestamp() {
            time_t rawtime;
            std::time(&rawtime);

            std::tm timeInfo = {};
#if defined (_MSC_VER) || defined (__MINGW32__)
            gmtime_s(&timeInfo, &rawtime);
#elif defined (CATCH_PLATFORM_PLAYSTATION)
            gmtime_s(&rawtime, &timeInfo);
#elif defined (__IAR_SYSTEMS_ICC__)
            timeInfo = *std::gmtime(&rawtime);
#else
            gmtime_r(&rawtime, &timeInfo);
#endif

            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
            char timeStamp[timeStampSize];
            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);

            return std::string(timeStamp, timeStampSize - 1);
        }

        std::string fileNameTag(std::vector<Tag> const& tags) {
            auto it = std::find_if(begin(tags),
                                   end(tags),
                                   [] (Tag const& tag) {
                                       return tag.original.size() > 0
                                           && tag.original[0] == '#'; });
            if (it != tags.end()) {
                return static_cast<std::string>(
                    it->original.substr(1, it->original.size() - 1)
                );
            }
            return std::string();
        }

        // Formats the duration in seconds to 3 decimal places.
        // This is done because some genius defined Maven Surefire schema
        // in a way that only accepts 3 decimal places, and tools like
        // Jenkins use that schema for validation JUnit reporter output.
        std::string formatDuration( double seconds ) {
            ReusableStringStream rss;
            rss << std::fixed << std::setprecision( 3 ) << seconds;
            return rss.str();
        }

        static void normalizeNamespaceMarkers(std::string& str) {
            std::size_t pos = str.find( "::" );
            while ( pos != str.npos ) {
                str.replace( pos, 2, "." );
                pos += 1;
                pos = str.find( "::", pos );
            }
        }

    } // anonymous namespace

    JunitReporter::JunitReporter( ReporterConfig&& _config )
        :   CumulativeReporterBase( CATCH_MOVE(_config) ),
            xml( m_stream )
        {
            m_preferences.shouldRedirectStdOut = true;
            m_preferences.shouldReportAllAssertions = true;
            m_shouldStoreSuccesfulAssertions = false;
        }

    std::string JunitReporter::getDescription() {
        return "Reports test results in an XML format that looks like Ant's junitreport target";
    }

    void JunitReporter::testRunStarting( TestRunInfo const& runInfo )  {
        CumulativeReporterBase::testRunStarting( runInfo );
        xml.startElement( "testsuites" );
        suiteTimer.start();
        stdOutForSuite.clear();
        stdErrForSuite.clear();
        unexpectedExceptions = 0;
    }

    void JunitReporter::testCaseStarting( TestCaseInfo const& testCaseInfo ) {
        m_okToFail = testCaseInfo.okToFail();
    }

    void JunitReporter::assertionEnded( AssertionStats const& assertionStats ) {
        if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail )
            unexpectedExceptions++;
        CumulativeReporterBase::assertionEnded( assertionStats );
    }

    void JunitReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
        stdOutForSuite += testCaseStats.stdOut;
        stdErrForSuite += testCaseStats.stdErr;
        CumulativeReporterBase::testCaseEnded( testCaseStats );
    }

    void JunitReporter::testRunEndedCumulative() {
        const auto suiteTime = suiteTimer.getElapsedSeconds();
        writeRun( *m_testRun, suiteTime );
        xml.endElement();
    }

    void JunitReporter::writeRun( TestRunNode const& testRunNode, double suiteTime ) {
        XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );

        TestRunStats const& stats = testRunNode.value;
        xml.writeAttribute( "name"_sr, stats.runInfo.name );
        xml.writeAttribute( "errors"_sr, unexpectedExceptions );
        xml.writeAttribute( "failures"_sr, stats.totals.assertions.failed-unexpectedExceptions );
        xml.writeAttribute( "skipped"_sr, stats.totals.assertions.skipped );
        xml.writeAttribute( "tests"_sr, stats.totals.assertions.total() );
        xml.writeAttribute( "hostname"_sr, "tbd"_sr ); // !TBD
        if( m_config->showDurations() == ShowDurations::Never )
            xml.writeAttribute( "time"_sr, ""_sr );
        else
            xml.writeAttribute( "time"_sr, formatDuration( suiteTime ) );
        xml.writeAttribute( "timestamp"_sr, getCurrentTimestamp() );

        // Write properties
        {
            auto properties = xml.scopedElement("properties");
            xml.scopedElement("property")
                .writeAttribute("name"_sr, "random-seed"_sr)
                .writeAttribute("value"_sr, m_config->rngSeed());
            if (m_config->testSpec().hasFilters()) {
                xml.scopedElement("property")
                    .writeAttribute("name"_sr, "filters"_sr)
                    .writeAttribute("value"_sr, m_config->testSpec());
            }
        }

        // Write test cases
        for( auto const& child : testRunNode.children )
            writeTestCase( *child );

        xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite ), XmlFormatting::Newline );
        xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite ), XmlFormatting::Newline );
    }

    void JunitReporter::writeTestCase( TestCaseNode const& testCaseNode ) {
        TestCaseStats const& stats = testCaseNode.value;

        // All test cases have exactly one section - which represents the
        // test case itself. That section may have 0-n nested sections
        assert( testCaseNode.children.size() == 1 );
        SectionNode const& rootSection = *testCaseNode.children.front();

        std::string className =
            static_cast<std::string>( stats.testInfo->className );

        if( className.empty() ) {
            className = fileNameTag(stats.testInfo->tags);
            if ( className.empty() ) {
                className = "global";
            }
        }

        if ( !m_config->name().empty() )
            className = static_cast<std::string>(m_config->name()) + '.' + className;

        normalizeNamespaceMarkers(className);

        writeSection( className, "", rootSection, stats.testInfo->okToFail() );
    }

    void JunitReporter::writeSection( std::string const& className,
                                      std::string const& rootName,
                                      SectionNode const& sectionNode,
                                      bool testOkToFail) {
        std::string name = trim( sectionNode.stats.sectionInfo.name );
        if( !rootName.empty() )
            name = rootName + '/' + name;

        if( sectionNode.hasAnyAssertions()
           || !sectionNode.stdOut.empty()
           || !sectionNode.stdErr.empty() ) {
            XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
            if( className.empty() ) {
                xml.writeAttribute( "classname"_sr, name );
                xml.writeAttribute( "name"_sr, "root"_sr );
            }
            else {
                xml.writeAttribute( "classname"_sr, className );
                xml.writeAttribute( "name"_sr, name );
            }
            xml.writeAttribute( "time"_sr, formatDuration( sectionNode.stats.durationInSeconds ) );
            // This is not ideal, but it should be enough to mimic gtest's
            // junit output.
            // Ideally the JUnit reporter would also handle `skipTest`
            // events and write those out appropriately.
            xml.writeAttribute( "status"_sr, "run"_sr );

            if (sectionNode.stats.assertions.failedButOk) {
                xml.scopedElement("skipped")
                    .writeAttribute("message", "TEST_CASE tagged with !mayfail");
            }

            writeAssertions( sectionNode );


            if( !sectionNode.stdOut.empty() )
                xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), XmlFormatting::Newline );
            if( !sectionNode.stdErr.empty() )
                xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), XmlFormatting::Newline );
        }
        for( auto const& childNode : sectionNode.childSections )
            if( className.empty() )
                writeSection( name, "", *childNode, testOkToFail );
            else
                writeSection( className, name, *childNode, testOkToFail );
    }

    void JunitReporter::writeAssertions( SectionNode const& sectionNode ) {
        for (auto const& assertionOrBenchmark : sectionNode.assertionsAndBenchmarks) {
            if (assertionOrBenchmark.isAssertion()) {
                writeAssertion(assertionOrBenchmark.asAssertion());
            }
        }
    }

    void JunitReporter::writeAssertion( AssertionStats const& stats ) {
        AssertionResult const& result = stats.assertionResult;
        if ( !result.isOk() ||
             result.getResultType() == ResultWas::ExplicitSkip ) {
            std::string elementName;
            switch( result.getResultType() ) {
                case ResultWas::ThrewException:
                case ResultWas::FatalErrorCondition:
                    elementName = "error";
                    break;
                case ResultWas::ExplicitFailure:
                case ResultWas::ExpressionFailed:
                case ResultWas::DidntThrowException:
                    elementName = "failure";
                    break;
                case ResultWas::ExplicitSkip:
                    elementName = "skipped";
                    break;
                // We should never see these here:
                case ResultWas::Info:
                case ResultWas::Warning:
                case ResultWas::Ok:
                case ResultWas::Unknown:
                case ResultWas::FailureBit:
                case ResultWas::Exception:
                    elementName = "internalError";
                    break;
            }

            XmlWriter::ScopedElement e = xml.scopedElement( elementName );

            xml.writeAttribute( "message"_sr, result.getExpression() );
            xml.writeAttribute( "type"_sr, result.getTestMacroName() );

            ReusableStringStream rss;
            if ( result.getResultType() == ResultWas::ExplicitSkip ) {
                rss << "SKIPPED\n";
            } else {
                rss << "FAILED" << ":\n";
                if (result.hasExpression()) {
                    rss << "  ";
                    rss << result.getExpressionInMacro();
                    rss << '\n';
                }
                if (result.hasExpandedExpression()) {
                    rss << "with expansion:\n";
                    rss << TextFlow::Column(result.getExpandedExpression()).indent(2) << '\n';
                }
            }

            if( result.hasMessage() )
                rss << result.getMessage() << '\n';
            for( auto const& msg : stats.infoMessages )
                if( msg.type == ResultWas::Info )
                    rss << msg.message << '\n';

            rss << "at " << result.getSourceInfo();
            xml.writeText( rss.str(), XmlFormatting::Newline );
        }
    }

} // end namespace Catch




#include <ostream>

namespace Catch {
    void MultiReporter::updatePreferences(IEventListener const& reporterish) {
        m_preferences.shouldRedirectStdOut |=
            reporterish.getPreferences().shouldRedirectStdOut;
        m_preferences.shouldReportAllAssertions |=
            reporterish.getPreferences().shouldReportAllAssertions;
    }

    void MultiReporter::addListener( IEventListenerPtr&& listener ) {
        updatePreferences(*listener);
        m_reporterLikes.insert(m_reporterLikes.begin() + m_insertedListeners, CATCH_MOVE(listener) );
        ++m_insertedListeners;
    }

    void MultiReporter::addReporter( IEventListenerPtr&& reporter ) {
        updatePreferences(*reporter);

        // We will need to output the captured stdout if there are reporters
        // that do not want it captured.
        // We do not consider listeners, because it is generally assumed that
        // listeners are output-transparent, even though they can ask for stdout
        // capture to do something with it.
        m_haveNoncapturingReporters |= !reporter->getPreferences().shouldRedirectStdOut;

        // Reporters can always be placed to the back without breaking the
        // reporting order
        m_reporterLikes.push_back( CATCH_MOVE( reporter ) );
    }

    void MultiReporter::noMatchingTestCases( StringRef unmatchedSpec ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->noMatchingTestCases( unmatchedSpec );
        }
    }

    void MultiReporter::fatalErrorEncountered( StringRef error ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->fatalErrorEncountered( error );
        }
    }

    void MultiReporter::reportInvalidTestSpec( StringRef arg ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->reportInvalidTestSpec( arg );
        }
    }

    void MultiReporter::benchmarkPreparing( StringRef name ) {
        for (auto& reporterish : m_reporterLikes) {
            reporterish->benchmarkPreparing(name);
        }
    }
    void MultiReporter::benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->benchmarkStarting( benchmarkInfo );
        }
    }
    void MultiReporter::benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->benchmarkEnded( benchmarkStats );
        }
    }

    void MultiReporter::benchmarkFailed( StringRef error ) {
        for (auto& reporterish : m_reporterLikes) {
            reporterish->benchmarkFailed(error);
        }
    }

    void MultiReporter::testRunStarting( TestRunInfo const& testRunInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testRunStarting( testRunInfo );
        }
    }

    void MultiReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testCaseStarting( testInfo );
        }
    }

    void
    MultiReporter::testCasePartialStarting( TestCaseInfo const& testInfo,
                                                uint64_t partNumber ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testCasePartialStarting( testInfo, partNumber );
        }
    }

    void MultiReporter::sectionStarting( SectionInfo const& sectionInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->sectionStarting( sectionInfo );
        }
    }

    void MultiReporter::assertionStarting( AssertionInfo const& assertionInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->assertionStarting( assertionInfo );
        }
    }

    void MultiReporter::assertionEnded( AssertionStats const& assertionStats ) {
        const bool reportByDefault =
            assertionStats.assertionResult.getResultType() != ResultWas::Ok ||
            m_config->includeSuccessfulResults();

        for ( auto & reporterish : m_reporterLikes ) {
            if ( reportByDefault ||
                 reporterish->getPreferences().shouldReportAllAssertions ) {
                    reporterish->assertionEnded( assertionStats );
            }
        }
    }

    void MultiReporter::sectionEnded( SectionStats const& sectionStats ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->sectionEnded( sectionStats );
        }
    }

    void MultiReporter::testCasePartialEnded( TestCaseStats const& testStats,
                                                  uint64_t partNumber ) {
        if ( m_preferences.shouldRedirectStdOut &&
             m_haveNoncapturingReporters ) {
            if ( !testStats.stdOut.empty() ) {
                Catch::cout() << testStats.stdOut << std::flush;
            }
            if ( !testStats.stdErr.empty() ) {
                Catch::cerr() << testStats.stdErr << std::flush;
            }
        }

        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testCasePartialEnded( testStats, partNumber );
        }
    }

    void MultiReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testCaseEnded( testCaseStats );
        }
    }

    void MultiReporter::testRunEnded( TestRunStats const& testRunStats ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->testRunEnded( testRunStats );
        }
    }


    void MultiReporter::skipTest( TestCaseInfo const& testInfo ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->skipTest( testInfo );
        }
    }

    void MultiReporter::listReporters(std::vector<ReporterDescription> const& descriptions) {
        for (auto& reporterish : m_reporterLikes) {
            reporterish->listReporters(descriptions);
        }
    }

    void MultiReporter::listListeners(
        std::vector<ListenerDescription> const& descriptions ) {
        for ( auto& reporterish : m_reporterLikes ) {
            reporterish->listListeners( descriptions );
        }
    }

    void MultiReporter::listTests(std::vector<TestCaseHandle> const& tests) {
        for (auto& reporterish : m_reporterLikes) {
            reporterish->listTests(tests);
        }
    }

    void MultiReporter::listTags(std::vector<TagInfo> const& tags) {
        for (auto& reporterish : m_reporterLikes) {
            reporterish->listTags(tags);
        }
    }

} // end namespace Catch





namespace Catch {
    namespace Detail {

        void registerReporterImpl( std::string const& name,
                                   IReporterFactoryPtr reporterPtr ) {
            CATCH_TRY {
                getMutableRegistryHub().registerReporter(
                    name, CATCH_MOVE( reporterPtr ) );
            }
            CATCH_CATCH_ALL {
                // Do not throw when constructing global objects, instead
                // register the exception to be processed later
                getMutableRegistryHub().registerStartupException();
            }
        }

        void registerListenerImpl( Detail::unique_ptr<EventListenerFactory> listenerFactory ) {
            getMutableRegistryHub().registerListener( CATCH_MOVE(listenerFactory) );
        }


    } // namespace Detail
} // namespace Catch




#include <map>

namespace Catch {

    namespace {
        std::string createMetadataString(IConfig const& config) {
            ReusableStringStream sstr;
            if ( config.testSpec().hasFilters() ) {
                sstr << "filters='"
                         << config.testSpec()
                         << "' ";
            }
            sstr << "rng-seed=" << config.rngSeed();
            return sstr.str();
        }
    }

    void SonarQubeReporter::testRunStarting(TestRunInfo const& testRunInfo) {
        CumulativeReporterBase::testRunStarting(testRunInfo);

        xml.writeComment( createMetadataString( *m_config ) );
        xml.startElement("testExecutions");
        xml.writeAttribute("version"_sr, '1');
    }

    void SonarQubeReporter::writeRun( TestRunNode const& runNode ) {
        std::map<StringRef, std::vector<TestCaseNode const*>> testsPerFile;

        for ( auto const& child : runNode.children ) {
            testsPerFile[child->value.testInfo->lineInfo.file].push_back(
                child.get() );
        }

        for ( auto const& kv : testsPerFile ) {
            writeTestFile( kv.first, kv.second );
        }
    }

    void SonarQubeReporter::writeTestFile(StringRef filename, std::vector<TestCaseNode const*> const& testCaseNodes) {
        XmlWriter::ScopedElement e = xml.scopedElement("file");
        xml.writeAttribute("path"_sr, filename);

        for (auto const& child : testCaseNodes)
            writeTestCase(*child);
    }

    void SonarQubeReporter::writeTestCase(TestCaseNode const& testCaseNode) {
        // All test cases have exactly one section - which represents the
        // test case itself. That section may have 0-n nested sections
        assert(testCaseNode.children.size() == 1);
        SectionNode const& rootSection = *testCaseNode.children.front();
        writeSection("", rootSection, testCaseNode.value.testInfo->okToFail());
    }

    void SonarQubeReporter::writeSection(std::string const& rootName, SectionNode const& sectionNode, bool okToFail) {
        std::string name = trim(sectionNode.stats.sectionInfo.name);
        if (!rootName.empty())
            name = rootName + '/' + name;

        if ( sectionNode.hasAnyAssertions()
            || !sectionNode.stdOut.empty()
            ||  !sectionNode.stdErr.empty() ) {
            XmlWriter::ScopedElement e = xml.scopedElement("testCase");
            xml.writeAttribute("name"_sr, name);
            xml.writeAttribute("duration"_sr, static_cast<long>(sectionNode.stats.durationInSeconds * 1000));

            writeAssertions(sectionNode, okToFail);
        }

        for (auto const& childNode : sectionNode.childSections)
            writeSection(name, *childNode, okToFail);
    }

    void SonarQubeReporter::writeAssertions(SectionNode const& sectionNode, bool okToFail) {
        for (auto const& assertionOrBenchmark : sectionNode.assertionsAndBenchmarks) {
            if (assertionOrBenchmark.isAssertion()) {
                writeAssertion(assertionOrBenchmark.asAssertion(), okToFail);
            }
        }
    }

    void SonarQubeReporter::writeAssertion(AssertionStats const& stats, bool okToFail) {
        AssertionResult const& result = stats.assertionResult;
        if ( !result.isOk() ||
             result.getResultType() == ResultWas::ExplicitSkip ) {
            std::string elementName;
            if (okToFail) {
                elementName = "skipped";
            } else {
                switch (result.getResultType()) {
                case ResultWas::ThrewException:
                case ResultWas::FatalErrorCondition:
                    elementName = "error";
                    break;
                case ResultWas::ExplicitFailure:
                case ResultWas::ExpressionFailed:
                case ResultWas::DidntThrowException:
                    elementName = "failure";
                    break;
                case ResultWas::ExplicitSkip:
                    elementName = "skipped";
                    break;
                    // We should never see these here:
                case ResultWas::Info:
                case ResultWas::Warning:
                case ResultWas::Ok:
                case ResultWas::Unknown:
                case ResultWas::FailureBit:
                case ResultWas::Exception:
                    elementName = "internalError";
                    break;
                }
            }

            XmlWriter::ScopedElement e = xml.scopedElement(elementName);

            ReusableStringStream messageRss;
            messageRss << result.getTestMacroName() << '(' << result.getExpression() << ')';
            xml.writeAttribute("message"_sr, messageRss.str());

            ReusableStringStream textRss;
            if ( result.getResultType() == ResultWas::ExplicitSkip ) {
                textRss << "SKIPPED\n";
            } else {
                textRss << "FAILED:\n";
                if (result.hasExpression()) {
                    textRss << '\t' << result.getExpressionInMacro() << '\n';
                }
                if (result.hasExpandedExpression()) {
                    textRss << "with expansion:\n\t" << result.getExpandedExpression() << '\n';
                }
            }

            if (result.hasMessage())
                textRss << result.getMessage() << '\n';

            for (auto const& msg : stats.infoMessages)
                if (msg.type == ResultWas::Info)
                    textRss << msg.message << '\n';

            textRss << "at " << result.getSourceInfo();
            xml.writeText(textRss.str(), XmlFormatting::Newline);
        }
    }

} // end namespace Catch



namespace Catch {

    StreamingReporterBase::~StreamingReporterBase() = default;

    void
    StreamingReporterBase::testRunStarting( TestRunInfo const& _testRunInfo ) {
        currentTestRunInfo = _testRunInfo;
    }

    void StreamingReporterBase::testRunEnded( TestRunStats const& ) {
        currentTestCaseInfo = nullptr;
    }

} // end namespace Catch



#include <algorithm>
#include <ostream>

namespace Catch {

    namespace {
        // Yes, this has to be outside the class and namespaced by naming.
        // Making older compiler happy is hard.
        static constexpr StringRef tapFailedString = "not ok"_sr;
        static constexpr StringRef tapPassedString = "ok"_sr;
        static constexpr Colour::Code tapDimColour = Colour::FileName;

        class TapAssertionPrinter {
        public:
            TapAssertionPrinter& operator= (TapAssertionPrinter const&) = delete;
            TapAssertionPrinter(TapAssertionPrinter const&) = delete;
            TapAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, std::size_t _counter, ColourImpl* colour_)
                : stream(_stream)
                , result(_stats.assertionResult)
                , messages(_stats.infoMessages)
                , itMessage(_stats.infoMessages.begin())
                , printInfoMessages(true)
                , counter(_counter)
                , colourImpl( colour_ ) {}

            void print() {
                itMessage = messages.begin();

                switch (result.getResultType()) {
                case ResultWas::Ok:
                    printResultType(tapPassedString);
                    printOriginalExpression();
                    printReconstructedExpression();
                    if (!result.hasExpression())
                        printRemainingMessages(Colour::None);
                    else
                        printRemainingMessages();
                    break;
                case ResultWas::ExpressionFailed:
                    if (result.isOk()) {
                        printResultType(tapPassedString);
                    } else {
                        printResultType(tapFailedString);
                    }
                    printOriginalExpression();
                    printReconstructedExpression();
                    if (result.isOk()) {
                        printIssue(" # TODO");
                    }
                    printRemainingMessages();
                    break;
                case ResultWas::ThrewException:
                    printResultType(tapFailedString);
                    printIssue("unexpected exception with message:"_sr);
                    printMessage();
                    printExpressionWas();
                    printRemainingMessages();
                    break;
                case ResultWas::FatalErrorCondition:
                    printResultType(tapFailedString);
                    printIssue("fatal error condition with message:"_sr);
                    printMessage();
                    printExpressionWas();
                    printRemainingMessages();
                    break;
                case ResultWas::DidntThrowException:
                    printResultType(tapFailedString);
                    printIssue("expected exception, got none"_sr);
                    printExpressionWas();
                    printRemainingMessages();
                    break;
                case ResultWas::Info:
                    printResultType("info"_sr);
                    printMessage();
                    printRemainingMessages();
                    break;
                case ResultWas::Warning:
                    printResultType("warning"_sr);
                    printMessage();
                    printRemainingMessages();
                    break;
                case ResultWas::ExplicitFailure:
                    printResultType(tapFailedString);
                    printIssue("explicitly"_sr);
                    printRemainingMessages(Colour::None);
                    break;
                case ResultWas::ExplicitSkip:
                    printResultType(tapPassedString);
                    printIssue(" # SKIP"_sr);
                    printMessage();
                    printRemainingMessages();
                    break;
                    // These cases are here to prevent compiler warnings
                case ResultWas::Unknown:
                case ResultWas::FailureBit:
                case ResultWas::Exception:
                    printResultType("** internal error **"_sr);
                    break;
                }
            }

        private:
            void printResultType(StringRef passOrFail) const {
                if (!passOrFail.empty()) {
                    stream << passOrFail << ' ' << counter << " -";
                }
            }

            void printIssue(StringRef issue) const {
                stream << ' ' << issue;
            }

            void printExpressionWas() {
                if (result.hasExpression()) {
                    stream << ';';
                    stream << colourImpl->guardColour( tapDimColour )
                           << " expression was:";
                    printOriginalExpression();
                }
            }

            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    stream << ' ' << result.getExpression();
                }
            }

            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    stream << colourImpl->guardColour( tapDimColour ) << " for: ";

                    std::string expr = result.getExpandedExpression();
                    std::replace(expr.begin(), expr.end(), '\n', ' ');
                    stream << expr;
                }
            }

            void printMessage() {
                if (itMessage != messages.end()) {
                    stream << " '" << itMessage->message << '\'';
                    ++itMessage;
                }
            }

            void printRemainingMessages(Colour::Code colour = tapDimColour) {
                if (itMessage == messages.end()) {
                    return;
                }

                // using messages.end() directly (or auto) yields compilation error:
                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
                const std::size_t N = static_cast<std::size_t>(itEnd - itMessage);

                stream << colourImpl->guardColour( colour ) << " with "
                       << pluralise( N, "message"_sr ) << ':';

                for (; itMessage != itEnd; ) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || itMessage->type != ResultWas::Info) {
                        stream << " '" << itMessage->message << '\'';
                        if (++itMessage != itEnd) {
                            stream << colourImpl->guardColour(tapDimColour) << " and";
                        }
                    }
                }
            }

        private:
            std::ostream& stream;
            AssertionResult const& result;
            std::vector<MessageInfo> const& messages;
            std::vector<MessageInfo>::const_iterator itMessage;
            bool printInfoMessages;
            std::size_t counter;
            ColourImpl* colourImpl;
        };

    } // End anonymous namespace

    void TAPReporter::testRunStarting( TestRunInfo const& ) {
        if ( m_config->testSpec().hasFilters() ) {
            m_stream << "# filters: " << m_config->testSpec() << '\n';
        }
        m_stream << "# rng-seed: " << m_config->rngSeed() << '\n';
    }

    void TAPReporter::noMatchingTestCases( StringRef unmatchedSpec ) {
        m_stream << "# No test cases matched '" << unmatchedSpec << "'\n";
    }

    void TAPReporter::assertionEnded(AssertionStats const& _assertionStats) {
        ++counter;

        m_stream << "# " << currentTestCaseInfo->name << '\n';
        TapAssertionPrinter printer(m_stream, _assertionStats, counter, m_colour.get());
        printer.print();

        m_stream << '\n' << std::flush;
    }

    void TAPReporter::testRunEnded(TestRunStats const& _testRunStats) {
        m_stream << "1.." << _testRunStats.totals.assertions.total();
        if (_testRunStats.totals.testCases.total() == 0) {
            m_stream << " # Skipped: No tests ran.";
        }
        m_stream << "\n\n" << std::flush;
        StreamingReporterBase::testRunEnded(_testRunStats);
    }




} // end namespace Catch




#include <cassert>
#include <ostream>

namespace Catch {

    namespace {
        // if string has a : in first line will set indent to follow it on
        // subsequent lines
        void printHeaderString(std::ostream& os, std::string const& _string, std::size_t indent = 0) {
            std::size_t i = _string.find(": ");
            if (i != std::string::npos)
                i += 2;
            else
                i = 0;
            os << TextFlow::Column(_string)
                  .indent(indent + i)
                  .initialIndent(indent) << '\n';
        }

        std::string escape(StringRef str) {
            std::string escaped = static_cast<std::string>(str);
            replaceInPlace(escaped, "|", "||");
            replaceInPlace(escaped, "'", "|'");
            replaceInPlace(escaped, "\n", "|n");
            replaceInPlace(escaped, "\r", "|r");
            replaceInPlace(escaped, "[", "|[");
            replaceInPlace(escaped, "]", "|]");
            return escaped;
        }
    } // end anonymous namespace


    TeamCityReporter::~TeamCityReporter() {}

    void TeamCityReporter::testRunStarting( TestRunInfo const& runInfo ) {
        m_stream << "##teamcity[testSuiteStarted name='" << escape( runInfo.name )
               << "']\n";
    }

    void TeamCityReporter::testRunEnded( TestRunStats const& runStats ) {
        m_stream << "##teamcity[testSuiteFinished name='"
               << escape( runStats.runInfo.name ) << "']\n";
    }

    void TeamCityReporter::assertionEnded(AssertionStats const& assertionStats) {
        AssertionResult const& result = assertionStats.assertionResult;
        if ( !result.isOk() ||
             result.getResultType() == ResultWas::ExplicitSkip ) {

            ReusableStringStream msg;
            if (!m_headerPrintedForThisSection)
                printSectionHeader(msg.get());
            m_headerPrintedForThisSection = true;

            msg << result.getSourceInfo() << '\n';

            switch (result.getResultType()) {
            case ResultWas::ExpressionFailed:
                msg << "expression failed";
                break;
            case ResultWas::ThrewException:
                msg << "unexpected exception";
                break;
            case ResultWas::FatalErrorCondition:
                msg << "fatal error condition";
                break;
            case ResultWas::DidntThrowException:
                msg << "no exception was thrown where one was expected";
                break;
            case ResultWas::ExplicitFailure:
                msg << "explicit failure";
                break;
            case ResultWas::ExplicitSkip:
                msg << "explicit skip";
                break;

                // We shouldn't get here because of the isOk() test
            case ResultWas::Ok:
            case ResultWas::Info:
            case ResultWas::Warning:
                CATCH_ERROR("Internal error in TeamCity reporter");
                // These cases are here to prevent compiler warnings
            case ResultWas::Unknown:
            case ResultWas::FailureBit:
            case ResultWas::Exception:
                CATCH_ERROR("Not implemented");
            }
            if (assertionStats.infoMessages.size() == 1)
                msg << " with message:";
            if (assertionStats.infoMessages.size() > 1)
                msg << " with messages:";
            for (auto const& messageInfo : assertionStats.infoMessages)
                msg << "\n  \"" << messageInfo.message << '"';


            if (result.hasExpression()) {
                msg <<
                    "\n  " << result.getExpressionInMacro() << "\n"
                    "with expansion:\n"
                    "  " << result.getExpandedExpression() << '\n';
            }

            if ( result.getResultType() == ResultWas::ExplicitSkip ) {
                m_stream << "##teamcity[testIgnored";
            } else if ( currentTestCaseInfo->okToFail() ) {
                msg << "- failure ignore as test marked as 'ok to fail'\n";
                m_stream << "##teamcity[testIgnored";
            } else {
                m_stream << "##teamcity[testFailed";
            }
            m_stream << " name='" << escape( currentTestCaseInfo->name ) << '\''
                     << " message='" << escape( msg.str() ) << '\'' << "]\n";
        }
        m_stream.flush();
    }

    void TeamCityReporter::testCaseStarting(TestCaseInfo const& testInfo) {
        m_testTimer.start();
        StreamingReporterBase::testCaseStarting(testInfo);
        m_stream << "##teamcity[testStarted name='"
            << escape(testInfo.name) << "']\n";
        m_stream.flush();
    }

    void TeamCityReporter::testCaseEnded(TestCaseStats const& testCaseStats) {
        StreamingReporterBase::testCaseEnded(testCaseStats);
        auto const& testCaseInfo = *testCaseStats.testInfo;
        if (!testCaseStats.stdOut.empty())
            m_stream << "##teamcity[testStdOut name='"
            << escape(testCaseInfo.name)
            << "' out='" << escape(testCaseStats.stdOut) << "']\n";
        if (!testCaseStats.stdErr.empty())
            m_stream << "##teamcity[testStdErr name='"
            << escape(testCaseInfo.name)
            << "' out='" << escape(testCaseStats.stdErr) << "']\n";
        m_stream << "##teamcity[testFinished name='"
            << escape(testCaseInfo.name) << "' duration='"
            << m_testTimer.getElapsedMilliseconds() << "']\n";
        m_stream.flush();
    }

    void TeamCityReporter::printSectionHeader(std::ostream& os) {
        assert(!m_sectionStack.empty());

        if (m_sectionStack.size() > 1) {
            os << lineOfChars('-') << '\n';

            std::vector<SectionInfo>::const_iterator
                it = m_sectionStack.begin() + 1, // Skip first section (test case)
                itEnd = m_sectionStack.end();
            for (; it != itEnd; ++it)
                printHeaderString(os, it->name);
            os << lineOfChars('-') << '\n';
        }

        SourceLineInfo lineInfo = m_sectionStack.front().lineInfo;

        os << lineInfo << '\n';
        os << lineOfChars('.') << "\n\n";
    }

} // end namespace Catch




#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
                              // Note that 4062 (not all labels are handled
                              // and default is missing) is enabled
#endif

namespace Catch {
    XmlReporter::XmlReporter( ReporterConfig&& _config )
    :   StreamingReporterBase( CATCH_MOVE(_config) ),
        m_xml(m_stream)
    {
        m_preferences.shouldRedirectStdOut = true;
        m_preferences.shouldReportAllAssertions = true;
    }

    XmlReporter::~XmlReporter() = default;

    std::string XmlReporter::getDescription() {
        return "Reports test results as an XML document";
    }

    std::string XmlReporter::getStylesheetRef() const {
        return std::string();
    }

    void XmlReporter::writeSourceInfo( SourceLineInfo const& sourceInfo ) {
        m_xml
            .writeAttribute( "filename"_sr, sourceInfo.file )
            .writeAttribute( "line"_sr, sourceInfo.line );
    }

    void XmlReporter::testRunStarting( TestRunInfo const& testInfo ) {
        StreamingReporterBase::testRunStarting( testInfo );
        std::string stylesheetRef = getStylesheetRef();
        if( !stylesheetRef.empty() )
            m_xml.writeStylesheetRef( stylesheetRef );
        m_xml.startElement("Catch2TestRun")
             .writeAttribute("name"_sr, m_config->name())
             .writeAttribute("rng-seed"_sr, m_config->rngSeed())
             .writeAttribute("xml-format-version"_sr, 3)
             .writeAttribute("catch2-version"_sr, libraryVersion());
        if ( m_config->testSpec().hasFilters() ) {
            m_xml.writeAttribute( "filters"_sr, m_config->testSpec() );
        }
    }

    void XmlReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
        StreamingReporterBase::testCaseStarting(testInfo);
        m_xml.startElement( "TestCase" )
            .writeAttribute( "name"_sr, trim( StringRef(testInfo.name) ) )
            .writeAttribute( "tags"_sr, testInfo.tagsAsString() );

        writeSourceInfo( testInfo.lineInfo );

        if ( m_config->showDurations() == ShowDurations::Always )
            m_testCaseTimer.start();
        m_xml.ensureTagClosed();
    }

    void XmlReporter::sectionStarting( SectionInfo const& sectionInfo ) {
        StreamingReporterBase::sectionStarting( sectionInfo );
        if( m_sectionDepth++ > 0 ) {
            m_xml.startElement( "Section" )
                .writeAttribute( "name"_sr, trim( StringRef(sectionInfo.name) ) );
            writeSourceInfo( sectionInfo.lineInfo );
            m_xml.ensureTagClosed();
        }
    }

    void XmlReporter::assertionStarting( AssertionInfo const& ) { }

    void XmlReporter::assertionEnded( AssertionStats const& assertionStats ) {

        AssertionResult const& result = assertionStats.assertionResult;

        bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

        if( includeResults || result.getResultType() == ResultWas::Warning ) {
            // Print any info messages in <Info> tags.
            for( auto const& msg : assertionStats.infoMessages ) {
                if( msg.type == ResultWas::Info && includeResults ) {
                    auto t = m_xml.scopedElement( "Info" );
                    writeSourceInfo( msg.lineInfo );
                    t.writeText( msg.message );
                } else if ( msg.type == ResultWas::Warning ) {
                    auto t = m_xml.scopedElement( "Warning" );
                    writeSourceInfo( msg.lineInfo );
                    t.writeText( msg.message );
                }
            }
        }

        // Drop out if result was successful but we're not printing them.
        if ( !includeResults && result.getResultType() != ResultWas::Warning &&
             result.getResultType() != ResultWas::ExplicitSkip ) {
            return;
        }

        // Print the expression if there is one.
        if( result.hasExpression() ) {
            m_xml.startElement( "Expression" )
                .writeAttribute( "success"_sr, result.succeeded() )
                .writeAttribute( "type"_sr, result.getTestMacroName() );

            writeSourceInfo( result.getSourceInfo() );

            m_xml.scopedElement( "Original" )
                .writeText( result.getExpression() );
            m_xml.scopedElement( "Expanded" )
                .writeText( result.getExpandedExpression() );
        }

        // And... Print a result applicable to each result type.
        switch( result.getResultType() ) {
            case ResultWas::ThrewException:
                m_xml.startElement( "Exception" );
                writeSourceInfo( result.getSourceInfo() );
                m_xml.writeText( result.getMessage() );
                m_xml.endElement();
                break;
            case ResultWas::FatalErrorCondition:
                m_xml.startElement( "FatalErrorCondition" );
                writeSourceInfo( result.getSourceInfo() );
                m_xml.writeText( result.getMessage() );
                m_xml.endElement();
                break;
            case ResultWas::Info:
                m_xml.scopedElement( "Info" )
                     .writeText( result.getMessage() );
                break;
            case ResultWas::Warning:
                // Warning will already have been written
                break;
            case ResultWas::ExplicitFailure:
                m_xml.startElement( "Failure" );
                writeSourceInfo( result.getSourceInfo() );
                m_xml.writeText( result.getMessage() );
                m_xml.endElement();
                break;
            case ResultWas::ExplicitSkip:
                m_xml.startElement( "Skip" );
                writeSourceInfo( result.getSourceInfo() );
                m_xml.writeText( result.getMessage() );
                m_xml.endElement();
                break;
            default:
                break;
        }

        if( result.hasExpression() )
            m_xml.endElement();
    }

    void XmlReporter::sectionEnded( SectionStats const& sectionStats ) {
        StreamingReporterBase::sectionEnded( sectionStats );
        if ( --m_sectionDepth > 0 ) {
            {
                XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
                e.writeAttribute( "successes"_sr, sectionStats.assertions.passed );
                e.writeAttribute( "failures"_sr, sectionStats.assertions.failed );
                e.writeAttribute( "expectedFailures"_sr, sectionStats.assertions.failedButOk );
                e.writeAttribute( "skipped"_sr, sectionStats.assertions.skipped > 0 );

                if ( m_config->showDurations() == ShowDurations::Always )
                    e.writeAttribute( "durationInSeconds"_sr, sectionStats.durationInSeconds );
            }
            // Ends assertion tag
            m_xml.endElement();
        }
    }

    void XmlReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
        StreamingReporterBase::testCaseEnded( testCaseStats );
        XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
        e.writeAttribute( "success"_sr, testCaseStats.totals.assertions.allOk() );
        e.writeAttribute( "skips"_sr, testCaseStats.totals.assertions.skipped );

        if ( m_config->showDurations() == ShowDurations::Always )
            e.writeAttribute( "durationInSeconds"_sr, m_testCaseTimer.getElapsedSeconds() );
        if( !testCaseStats.stdOut.empty() )
            m_xml.scopedElement( "StdOut" ).writeText( trim( StringRef(testCaseStats.stdOut) ), XmlFormatting::Newline );
        if( !testCaseStats.stdErr.empty() )
            m_xml.scopedElement( "StdErr" ).writeText( trim( StringRef(testCaseStats.stdErr) ), XmlFormatting::Newline );

        m_xml.endElement();
    }

    void XmlReporter::testRunEnded( TestRunStats const& testRunStats ) {
        StreamingReporterBase::testRunEnded( testRunStats );
        m_xml.scopedElement( "OverallResults" )
            .writeAttribute( "successes"_sr, testRunStats.totals.assertions.passed )
            .writeAttribute( "failures"_sr, testRunStats.totals.assertions.failed )
            .writeAttribute( "expectedFailures"_sr, testRunStats.totals.assertions.failedButOk )
            .writeAttribute( "skips"_sr, testRunStats.totals.assertions.skipped );
        m_xml.scopedElement( "OverallResultsCases")
            .writeAttribute( "successes"_sr, testRunStats.totals.testCases.passed )
            .writeAttribute( "failures"_sr, testRunStats.totals.testCases.failed )
            .writeAttribute( "expectedFailures"_sr, testRunStats.totals.testCases.failedButOk )
            .writeAttribute( "skips"_sr, testRunStats.totals.testCases.skipped );
        m_xml.endElement();
    }

    void XmlReporter::benchmarkPreparing( StringRef name ) {
        m_xml.startElement("BenchmarkResults")
             .writeAttribute("name"_sr, name);
    }

    void XmlReporter::benchmarkStarting(BenchmarkInfo const &info) {
        m_xml.writeAttribute("samples"_sr, info.samples)
            .writeAttribute("resamples"_sr, info.resamples)
            .writeAttribute("iterations"_sr, info.iterations)
            .writeAttribute("clockResolution"_sr, info.clockResolution)
            .writeAttribute("estimatedDuration"_sr, info.estimatedDuration)
            .writeComment("All values in nano seconds"_sr);
    }

    void XmlReporter::benchmarkEnded(BenchmarkStats<> const& benchmarkStats) {
        m_xml.startElement("mean")
            .writeAttribute("value"_sr, benchmarkStats.mean.point.count())
            .writeAttribute("lowerBound"_sr, benchmarkStats.mean.lower_bound.count())
            .writeAttribute("upperBound"_sr, benchmarkStats.mean.upper_bound.count())
            .writeAttribute("ci"_sr, benchmarkStats.mean.confidence_interval);
        m_xml.endElement();
        m_xml.startElement("standardDeviation")
            .writeAttribute("value"_sr, benchmarkStats.standardDeviation.point.count())
            .writeAttribute("lowerBound"_sr, benchmarkStats.standardDeviation.lower_bound.count())
            .writeAttribute("upperBound"_sr, benchmarkStats.standardDeviation.upper_bound.count())
            .writeAttribute("ci"_sr, benchmarkStats.standardDeviation.confidence_interval);
        m_xml.endElement();
        m_xml.startElement("outliers")
            .writeAttribute("variance"_sr, benchmarkStats.outlierVariance)
            .writeAttribute("lowMild"_sr, benchmarkStats.outliers.low_mild)
            .writeAttribute("lowSevere"_sr, benchmarkStats.outliers.low_severe)
            .writeAttribute("highMild"_sr, benchmarkStats.outliers.high_mild)
            .writeAttribute("highSevere"_sr, benchmarkStats.outliers.high_severe);
        m_xml.endElement();
        m_xml.endElement();
    }

    void XmlReporter::benchmarkFailed(StringRef error) {
        m_xml.scopedElement("failed").
            writeAttribute("message"_sr, error);
        m_xml.endElement();
    }

    void XmlReporter::listReporters(std::vector<ReporterDescription> const& descriptions) {
        auto outerTag = m_xml.scopedElement("AvailableReporters");
        for (auto const& reporter : descriptions) {
            auto inner = m_xml.scopedElement("Reporter");
            m_xml.startElement("Name", XmlFormatting::Indent)
                 .writeText(reporter.name, XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
            m_xml.startElement("Description", XmlFormatting::Indent)
                 .writeText(reporter.description, XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
        }
    }

    void XmlReporter::listListeners(std::vector<ListenerDescription> const& descriptions) {
        auto outerTag = m_xml.scopedElement( "RegisteredListeners" );
        for ( auto const& listener : descriptions ) {
            auto inner = m_xml.scopedElement( "Listener" );
            m_xml.startElement( "Name", XmlFormatting::Indent )
                .writeText( listener.name, XmlFormatting::None )
                .endElement( XmlFormatting::Newline );
            m_xml.startElement( "Description", XmlFormatting::Indent )
                .writeText( listener.description, XmlFormatting::None )
                .endElement( XmlFormatting::Newline );
        }
    }

    void XmlReporter::listTests(std::vector<TestCaseHandle> const& tests) {
        auto outerTag = m_xml.scopedElement("MatchingTests");
        for (auto const& test : tests) {
            auto innerTag = m_xml.scopedElement("TestCase");
            auto const& testInfo = test.getTestCaseInfo();
            m_xml.startElement("Name", XmlFormatting::Indent)
                 .writeText(testInfo.name, XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
            m_xml.startElement("ClassName", XmlFormatting::Indent)
                 .writeText(testInfo.className, XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
            m_xml.startElement("Tags", XmlFormatting::Indent)
                 .writeText(testInfo.tagsAsString(), XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);

            auto sourceTag = m_xml.scopedElement("SourceInfo");
            m_xml.startElement("File", XmlFormatting::Indent)
                 .writeText(testInfo.lineInfo.file, XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
            m_xml.startElement("Line", XmlFormatting::Indent)
                 .writeText(std::to_string(testInfo.lineInfo.line), XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
        }
    }

    void XmlReporter::listTags(std::vector<TagInfo> const& tags) {
        auto outerTag = m_xml.scopedElement("TagsFromMatchingTests");
        for (auto const& tag : tags) {
            auto innerTag = m_xml.scopedElement("Tag");
            m_xml.startElement("Count", XmlFormatting::Indent)
                 .writeText(std::to_string(tag.count), XmlFormatting::None)
                 .endElement(XmlFormatting::Newline);
            auto aliasTag = m_xml.scopedElement("Aliases");
            for (auto const& alias : tag.spellings) {
                m_xml.startElement("Alias", XmlFormatting::Indent)
                     .writeText(alias, XmlFormatting::None)
                     .endElement(XmlFormatting::Newline);
            }
        }
    }

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif


================================================
FILE: catch2/catch_amalgamated.hpp
================================================
//              Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
//   (See accompanying file LICENSE.txt or copy at
//        https://www.boost.org/LICENSE_1_0.txt)

// SPDX-License-Identifier: BSL-1.0

//  Catch v3.4.0
//  Generated: 2023-07-13 13:23:07.577770
//  ----------------------------------------------------------
//  This file is an amalgamation of multiple different files.
//  You probably shouldn't edit it directly.
//  ----------------------------------------------------------
#ifndef CATCH_AMALGAMATED_HPP_INCLUDED
#define CATCH_AMALGAMATED_HPP_INCLUDED


/** \file
 * This is a convenience header for Catch2. It includes **all** of Catch2 headers.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of (significantly) increased
 * compilation times.
 *
 * When a new header is added to either the top level folder, or to the
 * corresponding internal subfolder, it should be added here. Headers
 * added to the various subparts (e.g. matchers, generators, etc...),
 * should go their respective catch-all headers.
 */

#ifndef CATCH_ALL_HPP_INCLUDED
#define CATCH_ALL_HPP_INCLUDED



/** \file
 * This is a convenience header for Catch2's benchmarking. It includes
 * **all** of Catch2 headers related to benchmarking.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of (significantly) increased
 * compilation times.
 *
 * When a new header is added to either the `benchmark` folder, or to
 * the corresponding internal (detail) subfolder, it should be added here.
 */

#ifndef CATCH_BENCHMARK_ALL_HPP_INCLUDED
#define CATCH_BENCHMARK_ALL_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_BENCHMARK_HPP_INCLUDED
#define CATCH_BENCHMARK_HPP_INCLUDED



#ifndef CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
#define CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED

// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
// CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
// ****************
// Note to maintainers: if new toggles are added please document them
// in configuration.md, too
// ****************

// In general each macro has a _NO_<feature name> form
// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
// Many features, at point of detection, define an _INTERNAL_ macro, so they
// can be combined, en-mass, with the _NO_ forms later.



#ifndef CATCH_PLATFORM_HPP_INCLUDED
#define CATCH_PLATFORM_HPP_INCLUDED

// See e.g.:
// https://opensource.apple.com/source/CarbonHeaders/CarbonHeaders-18.1/TargetConditionals.h.auto.html
#ifdef __APPLE__
#  include <TargetConditionals.h>
#  if (defined(TARGET_OS_OSX) && TARGET_OS_OSX == 1) || \
      (defined(TARGET_OS_MAC) && TARGET_OS_MAC == 1)
#    define CATCH_PLATFORM_MAC
#  elif (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE == 1)
#    define CATCH_PLATFORM_IPHONE
#  endif

#elif defined(linux) || defined(__linux) || defined(__linux__)
#  define CATCH_PLATFORM_LINUX

#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
#  define CATCH_PLATFORM_WINDOWS

#  if defined( WINAPI_FAMILY ) && ( WINAPI_FAMILY == WINAPI_FAMILY_APP )
#      define CATCH_PLATFORM_WINDOWS_UWP
#  endif

#elif defined(__ORBIS__) || defined(__PROSPERO__)
#  define CATCH_PLATFORM_PLAYSTATION

#endif

#endif // CATCH_PLATFORM_HPP_INCLUDED

#ifdef __cplusplus

#  if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
#    define CATCH_CPP14_OR_GREATER
#  endif

#  if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
#    define CATCH_CPP17_OR_GREATER
#  endif

#endif

// Only GCC compiler should be used in this block, so other compilers trying to
// mask themselves as GCC should be ignored.
#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && !defined(__CUDACC__) && !defined(__LCC__) && !defined(__NVCOMPILER)
#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "GCC diagnostic push" )
#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "GCC diagnostic pop" )

// This only works on GCC 9+. so we have to also add a global suppression of Wparentheses
// for older versions of GCC.
#    define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
         _Pragma( "GCC diagnostic ignored \"-Wparentheses\"" )

#    define CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT \
         _Pragma( "GCC diagnostic ignored \"-Wunused-result\"" )

#    define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
         _Pragma( "GCC diagnostic ignored \"-Wunused-variable\"" )

#    define CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
         _Pragma( "GCC diagnostic ignored \"-Wuseless-cast\"" )

#    define CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS \
         _Pragma( "GCC diagnostic ignored \"-Wshadow\"" )

#    define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__)

#endif

#if defined(__NVCOMPILER)
#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "diag push" )
#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "diag pop" )
#    define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "diag_suppress declared_but_not_referenced" )
#endif

#if defined(__CUDACC__) && !defined(__clang__)
#  ifdef __NVCC_DIAG_PRAGMA_SUPPORT__
// New pragmas introduced in CUDA 11.5+
#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "nv_diagnostic push" )
#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "nv_diagnostic pop" )
#    define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "nv_diag_suppress 177" )
#  else
#    define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "diag_suppress 177" )
#  endif
#endif

// clang-cl defines _MSC_VER as well as __clang__, which could cause the
// start/stop internal suppression macros to be double defined.
#if defined(__clang__) && !defined(_MSC_VER)

#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" )
#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "clang diagnostic pop" )

#endif // __clang__ && !_MSC_VER

#if defined(__clang__)

// As of this writing, IBM XL's implementation of __builtin_constant_p has a bug
// which results in calls to destructors being emitted for each temporary,
// without a matching initialization. In practice, this can result in something
// like `std::string::~string` being called on an uninitialized value.
//
// For example, this code will likely segfault under IBM XL:
// ```
// REQUIRE(std::string("12") + "34" == "1234")
// ```
//
// Similarly, NVHPC's implementation of `__builtin_constant_p` has a bug which
// results in calls to the immediately evaluated lambda expressions to be
// reported as unevaluated lambdas.
// https://developer.nvidia.com/nvidia_bug/3321845.
//
// Therefore, `CATCH_INTERNAL_IGNORE_BUT_WARN` is not implemented.
#  if !defined(__ibmxl__) && !defined(__CUDACC__) && !defined( __NVCOMPILER )
#    define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__) /* NOLINT(cppcoreguidelines-pro-type-vararg, hicpp-vararg) */
#  endif


#    define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
         _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
         _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")

#    define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
         _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )

#    define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
         _Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )

#    define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
         _Pragma( "clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"" )

#    define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
         _Pragma( "clang diagnostic ignored \"-Wunused-template\"" )

#    define CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
        _Pragma( "clang diagnostic ignored \"-Wcomma\"" )

#    define CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS \
        _Pragma( "clang diagnostic ignored \"-Wshadow\"" )

#endif // __clang__


////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined( CATCH_PLATFORM_WINDOWS ) ||                                       \
    defined( CATCH_PLATFORM_PLAYSTATION ) ||                                   \
    defined( __CYGWIN__ ) ||                                                   \
    defined( __QNX__ ) ||                                                      \
    defined( __EMSCRIPTEN__ ) ||                                               \
    defined( __DJGPP__ ) ||                                                    \
    defined( __OS400__ )
#    define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#else
#    define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
#endif

////////////////////////////////////////////////////////////////////////////////
// Assume that some platforms do not support getenv.
#if defined(CATCH_PLATFORM_WINDOWS_UWP) || defined(CATCH_PLATFORM_PLAYSTATION)
#    define CATCH_INTERNAL_CONFIG_NO_GETENV
#else
#    define CATCH_INTERNAL_CONFIG_GETENV
#endif

////////////////////////////////////////////////////////////////////////////////
// Android somehow still does not support std::to_string
#if defined(__ANDROID__)
#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
#endif

////////////////////////////////////////////////////////////////////////////////
// Not all Windows environments support SEH properly
#if defined(__MINGW32__)
#    define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
#endif

////////////////////////////////////////////////////////////////////////////////
// PS4
#if defined(__ORBIS__)
#    define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
#endif

////////////////////////////////////////////////////////////////////////////////
// Cygwin
#ifdef __CYGWIN__

// Required for some versions of Cygwin to declare gettimeofday
// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
#   define _BSD_SOURCE
// some versions of cygwin (most) do not support std::to_string. Use the libstd check.
// https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html line 2812-2813
# if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
           && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))

#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING

# endif
#endif // __CYGWIN__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#if defined(_MSC_VER)

// We want to defer to nvcc-specific warning suppression if we are compiled
// with nvcc masquerading for MSVC.
#    if !defined( __CUDACC__ )
#        define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
            __pragma( warning( push ) )
#        define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
            __pragma( warning( pop ) )
#    endif

// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
#  if defined(CATCH_PLATFORM_WINDOWS_UWP)
#    define CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32
#  else
#    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
#  endif

// MSVC traditional preprocessor needs some workaround for __VA_ARGS__
// _MSVC_TRADITIONAL == 0 means new conformant preprocessor
// _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
#  if !defined(__clang__) // Handle Clang masquerading for msvc
#    if !defined(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
#      define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#    endif // MSVC_TRADITIONAL
#  endif // __clang__

#endif // _MSC_VER

#if defined(_REENTRANT) || defined(_MSC_VER)
// Enable async processing, as -pthread is specified or no additional linking is required
# define CATCH_INTERNAL_CONFIG_USE_ASYNC
#endif // _MSC_VER

////////////////////////////////////////////////////////////////////////////////
// Check if we are compiled with -fno-exceptions or equivalent
#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
#  define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
#endif


////////////////////////////////////////////////////////////////////////////////
// Embarcadero C++Build
#if defined(__BORLANDC__)
    #define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
#endif

////////////////////////////////////////////////////////////////////////////////

// RTX is a special version of Windows that is real time.
// This means that it is detected as Windows, but does not provide
// the same set of capabilities as real Windows does.
#if defined(UNDER_RTSS) || defined(RTX64_BUILD)
    #define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
    #define CATCH_INTERNAL_CONFIG_NO_ASYNC
    #define CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32
#endif

#if !defined(_GLIBCXX_USE_C99_MATH_TR1)
#define CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER
#endif

// Various stdlib support checks that require __has_include
#if defined(__has_include)
  // Check if string_view is available and usable
  #if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
  #    define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
  #endif

  // Check if optional is available and usable
  #  if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
  #    define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
  #  endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)

  // Check if byte is available and usable
  #  if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
  #    include <cstddef>
  #    if defined(__cpp_lib_byte) && (__cpp_lib_byte > 0)
  #      define CATCH_INTERNAL_CONFIG_CPP17_BYTE
  #    endif
  #  endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)

  // Check if variant is available and usable
  #  if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
  #    if defined(__clang__) && (__clang_major__ < 8)
         // work around clang bug with libstdc++ https://bugs.llvm.org/show_bug.cgi?id=31852
         // fix should be in clang 8, workaround in libstdc++ 8.2
  #      include <ciso646>
  #      if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
  #        define CATCH_CONFIG_NO_CPP17_VARIANT
  #      else
  #        define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
  #      endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
  #    else
  #      define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
  #    endif // defined(__clang__) && (__clang_major__ < 8)
  #  endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
#endif // defined(__has_include)


#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
#   define CATCH_CONFIG_WINDOWS_SEH
#endif
// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
#if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) && !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
#   define CATCH_CONFIG_POSIX_SIGNALS
#endif

#if defined(CATCH_INTERNAL_CONFIG_GETENV) && !defined(CATCH_INTERNAL_CONFIG_NO_GETENV) && !defined(CATCH_CONFIG_NO_GETENV) && !defined(CATCH_CONFIG_GETENV)
#   define CATCH_CONFIG_GETENV
#endif

#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
#    define CATCH_CONFIG_CPP11_TO_STRING
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_NO_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_CPP17_OPTIONAL)
#  define CATCH_CONFIG_CPP17_OPTIONAL
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
#  define CATCH_CONFIG_CPP17_STRING_VIEW
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && !defined(CATCH_CONFIG_NO_CPP17_VARIANT) && !defined(CATCH_CONFIG_CPP17_VARIANT)
#  define CATCH_CONFIG_CPP17_VARIANT
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
#  define CATCH_CONFIG_CPP17_BYTE
#endif


#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
#  define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
#endif

#if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) && !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NEW_CAPTURE)
#  define CATCH_CONFIG_NEW_CAPTURE
#endif

#if !defined( CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED ) && \
    !defined( CATCH_CONFIG_DISABLE_EXCEPTIONS ) &&          \
    !defined( CATCH_CONFIG_NO_DISABLE_EXCEPTIONS )
#  define CATCH_CONFIG_DISABLE_EXCEPTIONS
#endif

#if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_POLYFILL_ISNAN)
#  define CATCH_CONFIG_POLYFILL_ISNAN
#endif

#if defined(CATCH_INTERNAL_CONFIG_USE_ASYNC)  && !defined(CATCH_INTERNAL_CONFIG_NO_ASYNC) && !defined(CATCH_CONFIG_NO_USE_ASYNC) && !defined(CATCH_CONFIG_USE_ASYNC)
#  define CATCH_CONFIG_USE_ASYNC
#endif

#if defined(CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_NO_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
#  define CATCH_CONFIG_GLOBAL_NEXTAFTER
#endif


// Even if we do not think the compiler has that warning, we still have
// to provide a macro that can be used by the code.
#if !defined(CATCH_INTERNAL_START_WARNINGS_SUPPRESSION)
#   define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
#endif
#if !defined(CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION)
#   define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT)
#   define CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
#endif
#if !defined( CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS )
#    define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
#endif
#if !defined( CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS )
#    define CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS
#endif
#if !defined( CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS )
#    define CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS
#endif


// The goal of this macro is to avoid evaluation of the arguments, but
// still have the compiler warn on problems inside...
#if !defined(CATCH_INTERNAL_IGNORE_BUT_WARN)
#   define CATCH_INTERNAL_IGNORE_BUT_WARN(...)
#endif

#if defined(__APPLE__) && defined(__apple_build_version__) && (__clang_major__ < 10)
#   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
#elif defined(__clang__) && (__clang_major__ < 5)
#   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
#endif


#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
#define CATCH_TRY if ((true))
#define CATCH_CATCH_ALL if ((false))
#define CATCH_CATCH_ANON(type) if ((false))
#else
#define CATCH_TRY try
#define CATCH_CATCH_ALL catch (...)
#define CATCH_CATCH_ANON(type) catch (type)
#endif

#if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
#define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#endif

#if defined( CATCH_PLATFORM_WINDOWS ) &&       \
    !defined( CATCH_CONFIG_COLOUR_WIN32 ) && \
    !defined( CATCH_CONFIG_NO_COLOUR_WIN32 ) && \
    !defined( CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32 )
#    define CATCH_CONFIG_COLOUR_WIN32
#endif

#if defined( CATCH_CONFIG_SHARED_LIBRARY ) && defined( _MSC_VER ) && \
    !defined( CATCH_CONFIG_STATIC )
#    ifdef Catch2_EXPORTS
#        define CATCH_EXPORT //__declspec( dllexport ) // not needed
#    else
#        define CATCH_EXPORT __declspec( dllimport )
#    endif
#else
#    define CATCH_EXPORT
#endif

#endif // CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED


#ifndef CATCH_CONTEXT_HPP_INCLUDED
#define CATCH_CONTEXT_HPP_INCLUDED


namespace Catch {

    class IResultCapture;
    class IConfig;

    class Context {
        IConfig const* m_config = nullptr;
        IResultCapture* m_resultCapture = nullptr;

        CATCH_EXPORT static Context* currentContext;
        friend Context& getCurrentMutableContext();
        friend Context const& getCurrentContext();
        static void createContext();
        friend void cleanUpContext();

    public:
        IResultCapture* getResultCapture() const { return m_resultCapture; }
        IConfig const* getConfig() const { return m_config; }
        void setResultCapture( IResultCapture* resultCapture );
        void setConfig( IConfig const* config );
    };

    Context& getCurrentMutableContext();

    inline Context const& getCurrentContext() {
        // We duplicate the logic from `getCurrentMutableContext` here,
        // to avoid paying the call overhead in debug mode.
        if ( !Context::currentContext ) { Context::createContext(); }
        // NOLINTNEXTLINE(clang-analyzer-core.uninitialized.UndefReturn)
        return *Context::currentContext;
    }

    void cleanUpContext();

    class SimplePcg32;
    SimplePcg32& sharedRng();
}

#endif // CATCH_CONTEXT_HPP_INCLUDED


#ifndef CATCH_MOVE_AND_FORWARD_HPP_INCLUDED
#define CATCH_MOVE_AND_FORWARD_HPP_INCLUDED

#include <type_traits>

//! Replacement for std::move with better compile time performance
#define CATCH_MOVE(...) static_cast<std::remove_reference_t<decltype(__VA_ARGS__)>&&>(__VA_ARGS__)

//! Replacement for std::forward with better compile time performance
#define CATCH_FORWARD(...) static_cast<decltype(__VA_ARGS__)&&>(__VA_ARGS__)

#endif // CATCH_MOVE_AND_FORWARD_HPP_INCLUDED


#ifndef CATCH_TEST_FAILURE_EXCEPTION_HPP_INCLUDED
#define CATCH_TEST_FAILURE_EXCEPTION_HPP_INCLUDED

namespace Catch {

    //! Used to signal that an assertion macro failed
    struct TestFailureException{};
    //! Used to signal that the remainder of a test should be skipped
    struct TestSkipException {};

    /**
     * Outlines throwing of `TestFailureException` into a single TU
     *
     * Also handles `CATCH_CONFIG_DISABLE_EXCEPTIONS` for callers.
     */
    [[noreturn]] void throw_test_failure_exception();

    /**
     * Outlines throwing of `TestSkipException` into a single TU
     *
     * Also handles `CATCH_CONFIG_DISABLE_EXCEPTIONS` for callers.
     */
    [[noreturn]] void throw_test_skip_exception();

} // namespace Catch

#endif // CATCH_TEST_FAILURE_EXCEPTION_HPP_INCLUDED


#ifndef CATCH_UNIQUE_NAME_HPP_INCLUDED
#define CATCH_UNIQUE_NAME_HPP_INCLUDED




/** \file
 * Wrapper for the CONFIG configuration option
 *
 * When generating internal unique names, there are two options. Either
 * we mix in the current line number, or mix in an incrementing number.
 * We prefer the latter, using `__COUNTER__`, but users might want to
 * use the former.
 */

#ifndef CATCH_CONFIG_COUNTER_HPP_INCLUDED
#define CATCH_CONFIG_COUNTER_HPP_INCLUDED


#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
    #define CATCH_INTERNAL_CONFIG_COUNTER
#endif

#if defined( CATCH_INTERNAL_CONFIG_COUNTER ) && \
    !defined( CATCH_CONFIG_NO_COUNTER ) && \
    !defined( CATCH_CONFIG_COUNTER )
#    define CATCH_CONFIG_COUNTER
#endif


#endif // CATCH_CONFIG_COUNTER_HPP_INCLUDED
#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
#ifdef CATCH_CONFIG_COUNTER
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
#else
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
#endif

#endif // CATCH_UNIQUE_NAME_HPP_INCLUDED


#ifndef CATCH_INTERFACES_CAPTURE_HPP_INCLUDED
#define CATCH_INTERFACES_CAPTURE_HPP_INCLUDED

#include <string>
#include <chrono>



#ifndef CATCH_STRINGREF_HPP_INCLUDED
#define CATCH_STRINGREF_HPP_INCLUDED

#include <cstddef>
#include <string>
#include <iosfwd>
#include <cassert>

#include <cstring>

namespace Catch {

    /// A non-owning string class (similar to the forthcoming std::string_view)
    /// Note that, because a StringRef may be a substring of another string,
    /// it may not be null terminated.
    class StringRef {
    public:
        using size_type = std::size_t;
        using const_iterator = const char*;

    private:
        static constexpr char const* const s_empty = "";

        char const* m_start = s_empty;
        size_type m_size = 0;

    public: // construction
        constexpr StringRef() noexcept = default;

        StringRef( char const* rawChars ) noexcept;

        constexpr StringRef( char const* rawChars, size_type size ) noexcept
        :   m_start( rawChars ),
            m_size( size )
        {}

        StringRef( std::string const& stdString ) noexcept
        :   m_start( stdString.c_str() ),
            m_size( stdString.size() )
        {}

        explicit operator std::string() const {
            return std::string(m_start, m_size);
        }

    public: // operators
        auto operator == ( StringRef other ) const noexcept -> bool {
            return m_size == other.m_size
                && (std::memcmp( m_start, other.m_start, m_size ) == 0);
        }
        auto operator != (StringRef other) const noexcept -> bool {
            return !(*this == other);
        }

        constexpr auto operator[] ( size_type index ) const noexcept -> char {
            assert(index < m_size);
            return m_start[index];
        }

        bool operator<(StringRef rhs) const noexcept;

    public: // named queries
        constexpr auto empty() const noexcept -> bool {
            return m_size == 0;
        }
        constexpr auto size() const noexcept -> size_type {
            return m_size;
        }

        // Returns a substring of [start, start + length).
        // If start + length > size(), then the substring is [start, start + size()).
        // If start > size(), then the substring is empty.
        constexpr StringRef substr(size_type start, size_type length) const noexcept {
            if (start < m_size) {
                const auto shortened_size = m_size - start;
                return StringRef(m_start + start, (shortened_size < length) ? shortened_size : length);
            } else {
                return StringRef();
            }
        }

        // Returns the current start pointer. May not be null-terminated.
        constexpr char const* data() const noexcept {
            return m_start;
        }

        constexpr const_iterator begin() const { return m_start; }
        constexpr const_iterator end() const { return m_start + m_size; }


        friend std::string& operator += (std::string& lhs, StringRef sr);
        friend std::ostream& operator << (std::ostream& os, StringRef sr);
        friend std::string operator+(StringRef lhs, StringRef rhs);

        /**
         * Provides a three-way comparison with rhs
         *
         * Returns negative number if lhs < rhs, 0 if lhs == rhs, and a positive
         * number if lhs > rhs
         */
        int compare( StringRef rhs ) const;
    };


    constexpr auto operator ""_sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
        return StringRef( rawChars, size );
    }
} // namespace Catch

constexpr auto operator ""_catch_sr( char const* rawChars, std::size_t size ) noexcept -> Catch::StringRef {
    return Catch::StringRef( rawChars, size );
}

#endif // CATCH_STRINGREF_HPP_INCLUDED


#ifndef CATCH_RESULT_TYPE_HPP_INCLUDED
#define CATCH_RESULT_TYPE_HPP_INCLUDED

namespace Catch {

    // ResultWas::OfType enum
    struct ResultWas { enum OfType {
        Unknown = -1,
        Ok = 0,
        Info = 1,
        Warning = 2,
        // TODO: Should explicit skip be considered "not OK" (cf. isOk)? I.e., should it have the failure bit?
        ExplicitSkip = 4,

        FailureBit = 0x10,

        ExpressionFailed = FailureBit | 1,
        ExplicitFailure = FailureBit | 2,

        Exception = 0x100 | FailureBit,

        ThrewException = Exception | 1,
        DidntThrowException = Exception | 2,

        FatalErrorCondition = 0x200 | FailureBit

    }; };

    bool isOk( ResultWas::OfType resultType );
    bool isJustInfo( int flags );


    // ResultDisposition::Flags enum
    struct ResultDisposition { enum Flags {
        Normal = 0x01,

        ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
        FalseTest = 0x04,           // Prefix expression with !
        SuppressFail = 0x08         // Failures are reported but do not fail the test
    }; };

    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs );

    bool shouldContinueOnFailure( int flags );
    inline bool isFalseTest( int flags ) { return ( flags & ResultDisposition::FalseTest ) != 0; }
    bool shouldSuppressFailure( int flags );

} // end namespace Catch

#endif // CATCH_RESULT_TYPE_HPP_INCLUDED


#ifndef CATCH_UNIQUE_PTR_HPP_INCLUDED
#define CATCH_UNIQUE_PTR_HPP_INCLUDED

#include <cassert>
#include <type_traits>


namespace Catch {
namespace Detail {
    /**
     * A reimplementation of `std::unique_ptr` for improved compilation performance
     *
     * Does not support arrays nor custom deleters.
     */
    template <typename T>
    class unique_ptr {
        T* m_ptr;
    public:
        constexpr unique_ptr(std::nullptr_t = nullptr):
            m_ptr{}
        {}
        explicit constexpr unique_ptr(T* ptr):
            m_ptr(ptr)
        {}

        template <typename U, typename = std::enable_if_t<std::is_base_of<T, U>::value>>
        unique_ptr(unique_ptr<U>&& from):
            m_ptr(from.release())
        {}

        template <typename U, typename = std::enable_if_t<std::is_base_of<T, U>::value>>
        unique_ptr& operator=(unique_ptr<U>&& from) {
            reset(from.release());

            return *this;
        }

        unique_ptr(unique_ptr const&) = delete;
        unique_ptr& operator=(unique_ptr const&) = delete;

        unique_ptr(unique_ptr&& rhs) noexcept:
            m_ptr(rhs.m_ptr) {
            rhs.m_ptr = nullptr;
        }
        unique_ptr& operator=(unique_ptr&& rhs) noexcept {
            reset(rhs.release());

            return *this;
        }

        ~unique_ptr() {
            delete m_ptr;
        }

        T& operator*() {
            assert(m_ptr);
            return *m_ptr;
        }
        T const& operator*() const {
            assert(m_ptr);
            return *m_ptr;
        }
        T* operator->() noexcept {
            assert(m_ptr);
            return m_ptr;
        }
        T const* operator->() const noexcept {
            assert(m_ptr);
            return m_ptr;
        }

        T* get() { return m_ptr; }
        T const* get() const { return m_ptr; }

        void reset(T* ptr = nullptr) {
            delete m_ptr;
            m_ptr = ptr;
        }

        T* release() {
            auto temp = m_ptr;
            m_ptr = nullptr;
            return temp;
        }

        explicit operator bool() const {
            return m_ptr;
        }

        friend void swap(unique_ptr& lhs, unique_ptr& rhs) {
            auto temp = lhs.m_ptr;
            lhs.m_ptr = rhs.m_ptr;
            rhs.m_ptr = temp;
        }
    };

    //! Specialization to cause compile-time error for arrays
    template <typename T>
    class unique_ptr<T[]>;

    template <typename T, typename... Args>
    unique_ptr<T> make_unique(Args&&... args) {
        return unique_ptr<T>(new T(CATCH_FORWARD(args)...));
    }


} // end namespace Detail
} // end namespace Catch

#endif // CATCH_UNIQUE_PTR_HPP_INCLUDED


#ifndef CATCH_BENCHMARK_STATS_FWD_HPP_INCLUDED
#define CATCH_BENCHMARK_STATS_FWD_HPP_INCLUDED

#include <chrono>

namespace Catch {

    // We cannot forward declare the type with default template argument
    // multiple times, so it is split out into a separate header so that
    // we can prevent multiple declarations in dependees
    template <typename Duration = std::chrono::duration<double, std::nano>>
    struct BenchmarkStats;

} // end namespace Catch

#endif // CATCH_BENCHMARK_STATS_FWD_HPP_INCLUDED

namespace Catch {

    class AssertionResult;
    struct AssertionInfo;
    struct SectionInfo;
    struct SectionEndInfo;
    struct MessageInfo;
    struct MessageBuilder;
    struct Counts;
    struct AssertionReaction;
    struct SourceLineInfo;

    class ITransientExpression;
    class IGeneratorTracker;

    struct BenchmarkInfo;

    namespace Generators {
        class GeneratorUntypedBase;
        using GeneratorBasePtr = Catch::Detail::unique_ptr<GeneratorUntypedBase>;
    }


    class IResultCapture {
    public:
        virtual ~IResultCapture();

        virtual void notifyAssertionStarted( AssertionInfo const& info ) = 0;
        virtual bool sectionStarted( StringRef sectionName,
                                     SourceLineInfo const& sectionLineInfo,
                                     Counts& assertions ) = 0;
        virtual void sectionEnded( SectionEndInfo&& endInfo ) = 0;
        virtual void sectionEndedEarly( SectionEndInfo&& endInfo ) = 0;

        virtual IGeneratorTracker*
        acquireGeneratorTracker( StringRef generatorName,
                                 SourceLineInfo const& lineInfo ) = 0;
        virtual IGeneratorTracker*
        createGeneratorTracker( StringRef generatorName,
                                SourceLineInfo lineInfo,
                                Generators::GeneratorBasePtr&& generator ) = 0;

        virtual void benchmarkPreparing( StringRef name ) = 0;
        virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
        virtual void benchmarkEnded( BenchmarkStats<> const& stats ) = 0;
        virtual void benchmarkFailed( StringRef error ) = 0;

        virtual void pushScopedMessage( MessageInfo const& message ) = 0;
        virtual void popScopedMessage( MessageInfo const& message ) = 0;

        virtual void emplaceUnscopedMessage( MessageBuilder&& builder ) = 0;

        virtual void handleFatalErrorCondition( StringRef message ) = 0;

        virtual void handleExpr
                (   AssertionInfo const& info,
                    ITransientExpression const& expr,
                    AssertionReaction& reaction ) = 0;
        virtual void handleMessage
                (   AssertionInfo const& info,
                    ResultWas::OfType resultType,
                    StringRef message,
                    AssertionReaction& reaction ) = 0;
        virtual void handleUnexpectedExceptionNotThrown
                (   AssertionInfo const& info,
                    AssertionReaction& reaction ) = 0;
        virtual void handleUnexpectedInflightException
                (   AssertionInfo const& info,
                    std::string&& message,
                    AssertionReaction& reaction ) = 0;
        virtual void handleIncomplete
                (   AssertionInfo const& info ) = 0;
        virtual void handleNonExpr
                (   AssertionInfo const &info,
                    ResultWas::OfType resultType,
                    AssertionReaction &reaction ) = 0;



        virtual bool lastAssertionPassed() = 0;
        virtual void assertionPassed() = 0;

        // Deprecated, do not use:
        virtual std::string getCurrentTestName() const = 0;
        virtual const AssertionResult* getLastResult() const = 0;
        virtual void exceptionEarlyReported() = 0;
    };

    IResultCapture& getResultCapture();
}

#endif // CATCH_INTERFACES_CAPTURE_HPP_INCLUDED


#ifndef CATCH_INTERFACES_CONFIG_HPP_INCLUDED
#define CATCH_INTERFACES_CONFIG_HPP_INCLUDED



#ifndef CATCH_NONCOPYABLE_HPP_INCLUDED
#define CATCH_NONCOPYABLE_HPP_INCLUDED

namespace Catch {
    namespace Detail {

        //! Deriving classes become noncopyable and nonmovable
        class NonCopyable {
            NonCopyable( NonCopyable const& ) = delete;
            NonCopyable( NonCopyable&& ) = delete;
            NonCopyable& operator=( NonCopyable const& ) = delete;
            NonCopyable& operator=( NonCopyable&& ) = delete;

        protected:
            NonCopyable() noexcept = default;
        };

    } // namespace Detail
} // namespace Catch

#endif // CATCH_NONCOPYABLE_HPP_INCLUDED

#include <chrono>
#include <iosfwd>
#include <string>
#include <vector>

namespace Catch {

    enum class Verbosity {
        Quiet = 0,
        Normal,
        High
    };

    struct WarnAbout { enum What {
        Nothing = 0x00,
        //! A test case or leaf section did not run any assertions
        NoAssertions = 0x01,
        //! A command line test spec matched no test cases
        UnmatchedTestSpec = 0x02,
    }; };

    enum class ShowDurations {
        DefaultForReporter,
        Always,
        Never
    };
    enum class TestRunOrder {
        Declared,
        LexicographicallySorted,
        Randomized
    };
    enum class ColourMode : std::uint8_t {
        //! Let Catch2 pick implementation based on platform detection
        PlatformDefault,
        //! Use ANSI colour code escapes
        ANSI,
        //! Use Win32 console colour API
        Win32,
        //! Don't use any colour
        None
    };
    struct WaitForKeypress { enum When {
        Never,
        BeforeStart = 1,
        BeforeExit = 2,
        BeforeStartAndExit = BeforeStart | BeforeExit
    }; };

    class TestSpec;
    class IStream;

    class IConfig : public Detail::NonCopyable {
    public:
        virtual ~IConfig();

        virtual bool allowThrows() const = 0;
        virtual StringRef name() const = 0;
        virtual bool includeSuccessfulResults() const = 0;
        virtual bool shouldDebugBreak() const = 0;
        virtual bool warnAboutMissingAssertions() const = 0;
        virtual bool warnAboutUnmatchedTestSpecs() const = 0;
        virtual bool zeroTestsCountAsSuccess() const = 0;
        virtual int abortAfter() const = 0;
        virtual bool showInvisibles() const = 0;
        virtual ShowDurations showDurations() const = 0;
        virtual double minDuration() const = 0;
        virtual TestSpec const& testSpec() const = 0;
        virtual bool hasTestFilters() const = 0;
        virtual std::vector<std::string> const& getTestsOrTags() const = 0;
        virtual TestRunOrder runOrder() const = 0;
        virtual uint32_t rngSeed() const = 0;
        virtual unsigned int shardCount() const = 0;
        virtual unsigned int shardIndex() const = 0;
        virtual ColourMode defaultColourMode() const = 0;
        virtual std::vector<std::string> const& getSectionsToRun() const = 0;
        virtual Verbosity verbosity() const = 0;

        virtual bool skipBenchmarks() const = 0;
        virtual bool benchmarkNoAnalysis() const = 0;
        virtual unsigned int benchmarkSamples() const = 0;
        virtual double benchmarkConfidenceInterval() const = 0;
        virtual unsigned int benchmarkResamples() const = 0;
        virtual std::chrono::milliseconds benchmarkWarmupTime() const = 0;
    };
}

#endif // CATCH_INTERFACES_CONFIG_HPP_INCLUDED


#ifndef CATCH_INTERFACES_REGISTRY_HUB_HPP_INCLUDED
#define CATCH_INTERFACES_REGISTRY_HUB_HPP_INCLUDED


#include <string>

namespace Catch {

    class TestCaseHandle;
    struct TestCaseInfo;
    class ITestCaseRegistry;
    class IExceptionTranslatorRegistry;
    class IExceptionTranslator;
    class ReporterRegistry;
    class IReporterFactory;
    class ITagAliasRegistry;
    class ITestInvoker;
    class IMutableEnumValuesRegistry;
    struct SourceLineInfo;

    class StartupExceptionRegistry;
    class EventListenerFactory;

    using IReporterFactoryPtr = Detail::unique_ptr<IReporterFactory>;

    class IRegistryHub {
    public:
        virtual ~IRegistryHub(); // = default

        virtual ReporterRegistry const& getReporterRegistry() const = 0;
        virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
        virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;
        virtual IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const = 0;


        virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
    };

    class IMutableRegistryHub {
    public:
        virtual ~IMutableRegistryHub(); // = default
        virtual void registerReporter( std::string const& name, IReporterFactoryPtr factory ) = 0;
        virtual void registerListener( Detail::unique_ptr<EventListenerFactory> factory ) = 0;
        virtual void registerTest(Detail::unique_ptr<TestCaseInfo>&& testInfo, Detail::unique_ptr<ITestInvoker>&& invoker) = 0;
        virtual void registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator ) = 0;
        virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
        virtual void registerStartupException() noexcept = 0;
        virtual IMutableEnumValuesRegistry& getMutableEnumValuesRegistry() = 0;
    };

    IRegistryHub const& getRegistryHub();
    IMutableRegistryHub& getMutableRegistryHub();
    void cleanUp();
    std::string translateActiveException();

}

#endif // CATCH_INTERFACES_REGISTRY_HUB_HPP_INCLUDED


#ifndef CATCH_BENCHMARK_STATS_HPP_INCLUDED
#define CATCH_BENCHMARK_STATS_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_ESTIMATE_HPP_INCLUDED
#define CATCH_ESTIMATE_HPP_INCLUDED

namespace Catch {
    namespace Benchmark {
        template <typename Duration>
        struct Estimate {
            Duration point;
            Duration lower_bound;
            Duration upper_bound;
            double confidence_interval;

            template <typename Duration2>
            operator Estimate<Duration2>() const {
                return { point, lower_bound, upper_bound, confidence_interval };
            }
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_ESTIMATE_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_OUTLIER_CLASSIFICATION_HPP_INCLUDED
#define CATCH_OUTLIER_CLASSIFICATION_HPP_INCLUDED

namespace Catch {
    namespace Benchmark {
        struct OutlierClassification {
            int samples_seen = 0;
            int low_severe = 0;     // more than 3 times IQR below Q1
            int low_mild = 0;       // 1.5 to 3 times IQR below Q1
            int high_mild = 0;      // 1.5 to 3 times IQR above Q3
            int high_severe = 0;    // more than 3 times IQR above Q3

            int total() const {
                return low_severe + low_mild + high_mild + high_severe;
            }
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_OUTLIERS_CLASSIFICATION_HPP_INCLUDED
// The fwd decl & default specialization needs to be seen by VS2017 before
// BenchmarkStats itself, or VS2017 will report compilation error.

#include <string>
#include <vector>

namespace Catch {

    struct BenchmarkInfo {
        std::string name;
        double estimatedDuration;
        int iterations;
        unsigned int samples;
        unsigned int resamples;
        double clockResolution;
        double clockCost;
    };

    template <class Duration>
    struct BenchmarkStats {
        BenchmarkInfo info;

        std::vector<Duration> samples;
        Benchmark::Estimate<Duration> mean;
        Benchmark::Estimate<Duration> standardDeviation;
        Benchmark::OutlierClassification outliers;
        double outlierVariance;

        template <typename Duration2>
        operator BenchmarkStats<Duration2>() const {
            std::vector<Duration2> samples2;
            samples2.reserve(samples.size());
            for (auto const& sample : samples) {
                samples2.push_back(Duration2(sample));
            }
            return {
                info,
                CATCH_MOVE(samples2),
                mean,
                standardDeviation,
                outliers,
                outlierVariance,
            };
        }
    };


} // end namespace Catch

#endif // CATCH_BENCHMARK_STATS_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_CLOCK_HPP_INCLUDED
#define CATCH_CLOCK_HPP_INCLUDED

#include <chrono>
#include <ratio>

namespace Catch {
    namespace Benchmark {
        template <typename Clock>
        using ClockDuration = typename Clock::duration;
        template <typename Clock>
        using FloatDuration = std::chrono::duration<double, typename Clock::period>;

        template <typename Clock>
        using TimePoint = typename Clock::time_point;

        using default_clock = std::chrono::steady_clock;

        template <typename Clock>
        struct now {
            TimePoint<Clock> operator()() const {
                return Clock::now();
            }
        };

        using fp_seconds = std::chrono::duration<double, std::ratio<1>>;
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_CLOCK_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_ENVIRONMENT_HPP_INCLUDED
#define CATCH_ENVIRONMENT_HPP_INCLUDED


namespace Catch {
    namespace Benchmark {
        template <typename Duration>
        struct EnvironmentEstimate {
            Duration mean;
            OutlierClassification outliers;

            template <typename Duration2>
            operator EnvironmentEstimate<Duration2>() const {
                return { mean, outliers };
            }
        };
        template <typename Clock>
        struct Environment {
            using clock_type = Clock;
            EnvironmentEstimate<FloatDuration<Clock>> clock_resolution;
            EnvironmentEstimate<FloatDuration<Clock>> clock_cost;
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_ENVIRONMENT_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_EXECUTION_PLAN_HPP_INCLUDED
#define CATCH_EXECUTION_PLAN_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_BENCHMARK_FUNCTION_HPP_INCLUDED
#define CATCH_BENCHMARK_FUNCTION_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_CHRONOMETER_HPP_INCLUDED
#define CATCH_CHRONOMETER_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_OPTIMIZER_HPP_INCLUDED
#define CATCH_OPTIMIZER_HPP_INCLUDED

#if defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC__)
#   include <atomic> // atomic_thread_fence
#endif


#include <type_traits>

namespace Catch {
    namespace Benchmark {
#if defined(__GNUC__) || defined(__clang__)
        template <typename T>
        inline void keep_memory(T* p) {
            asm volatile("" : : "g"(p) : "memory");
        }
        inline void keep_memory() {
            asm volatile("" : : : "memory");
        }

        namespace Detail {
            inline void optimizer_barrier() { keep_memory(); }
        } // namespace Detail
#elif defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC__)

#if defined(_MSVC_VER)
#pragma optimize("", off)
#elif defined(__IAR_SYSTEMS_ICC__)
// For IAR the pragma only affects the following function
#pragma optimize=disable
#endif
        template <typename T>
        inline void keep_memory(T* p) {
            // thanks @milleniumbug
            *reinterpret_cast<char volatile*>(p) = *reinterpret_cast<char const volatile*>(p);
        }
        // TODO equivalent keep_memory()
#if defined(_MSVC_VER)
#pragma optimize("", on)
#endif

        namespace Detail {
            inline void optimizer_barrier() {
                std::atomic_thread_fence(std::memory_order_seq_cst);
            }
        } // namespace Detail

#endif

        template <typename T>
        inline void deoptimize_value(T&& x) {
            keep_memory(&x);
        }

        template <typename Fn, typename... Args>
        inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> std::enable_if_t<!std::is_same<void, decltype(fn(args...))>::value> {
            deoptimize_value(CATCH_FORWARD(fn) (CATCH_FORWARD(args)...));
        }

        template <typename Fn, typename... Args>
        inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> std::enable_if_t<std::is_same<void, decltype(fn(args...))>::value> {
            CATCH_FORWARD(fn) (CATCH_FORWARD(args)...);
        }
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_OPTIMIZER_HPP_INCLUDED


#ifndef CATCH_META_HPP_INCLUDED
#define CATCH_META_HPP_INCLUDED

#include <type_traits>

namespace Catch {
    template <typename>
    struct true_given : std::true_type {};

    struct is_callable_tester {
        template <typename Fun, typename... Args>
        static true_given<decltype(std::declval<Fun>()(std::declval<Args>()...))> test(int);
        template <typename...>
        static std::false_type test(...);
    };

    template <typename T>
    struct is_callable;

    template <typename Fun, typename... Args>
    struct is_callable<Fun(Args...)> : decltype(is_callable_tester::test<Fun, Args...>(0)) {};


#if defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703
    // std::result_of is deprecated in C++17 and removed in C++20. Hence, it is
    // replaced with std::invoke_result here.
    template <typename Func, typename... U>
    using FunctionReturnType = std::remove_reference_t<std::remove_cv_t<std::invoke_result_t<Func, U...>>>;
#else
    template <typename Func, typename... U>
    using FunctionReturnType = std::remove_reference_t<std::remove_cv_t<std::result_of_t<Func(U...)>>>;
#endif

} // namespace Catch

namespace mpl_{
    struct na;
}

#endif // CATCH_META_HPP_INCLUDED

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            struct ChronometerConcept {
                virtual void start() = 0;
                virtual void finish() = 0;
                virtual ~ChronometerConcept(); // = default;

                ChronometerConcept() = default;
                ChronometerConcept(ChronometerConcept const&) = default;
                ChronometerConcept& operator=(ChronometerConcept const&) = default;
            };
            template <typename Clock>
            struct ChronometerModel final : public ChronometerConcept {
                void start() override { started = Clock::now(); }
                void finish() override { finished = Clock::now(); }

                ClockDuration<Clock> elapsed() const { return finished - started; }

                TimePoint<Clock> started;
                TimePoint<Clock> finished;
            };
        } // namespace Detail

        struct Chronometer {
        public:
            template <typename Fun>
            void measure(Fun&& fun) { measure(CATCH_FORWARD(fun), is_callable<Fun(int)>()); }

            int runs() const { return repeats; }

            Chronometer(Detail::ChronometerConcept& meter, int repeats_)
                : impl(&meter)
                , repeats(repeats_) {}

        private:
            template <typename Fun>
            void measure(Fun&& fun, std::false_type) {
                measure([&fun](int) { return fun(); }, std::true_type());
            }

            template <typename Fun>
            void measure(Fun&& fun, std::true_type) {
                Detail::optimizer_barrier();
                impl->start();
                for (int i = 0; i < repeats; ++i) invoke_deoptimized(fun, i);
                impl->finish();
                Detail::optimizer_barrier();
            }

            Detail::ChronometerConcept* impl;
            int repeats;
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_CHRONOMETER_HPP_INCLUDED

#include <type_traits>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename T, typename U>
            struct is_related
                : std::is_same<std::decay_t<T>, std::decay_t<U>> {};

            /// We need to reinvent std::function because every piece of code that might add overhead
            /// in a measurement context needs to have consistent performance characteristics so that we
            /// can account for it in the measurement.
            /// Implementations of std::function with optimizations that aren't always applicable, like
            /// small buffer optimizations, are not uncommon.
            /// This is effectively an implementation of std::function without any such optimizations;
            /// it may be slow, but it is consistently slow.
            struct BenchmarkFunction {
            private:
                struct callable {
                    virtual void call(Chronometer meter) const = 0;
                    virtual Catch::Detail::unique_ptr<callable> clone() const = 0;
                    virtual ~callable(); // = default;

                    callable() = default;
                    callable(callable const&) = default;
                    callable& operator=(callable const&) = default;
                };
                template <typename Fun>
                struct model : public callable {
                    model(Fun&& fun_) : fun(CATCH_MOVE(fun_)) {}
                    model(Fun const& fun_) : fun(fun_) {}

                    Catch::Detail::unique_ptr<callable> clone() const override {
                        return Catch::Detail::make_unique<model<Fun>>( *this );
                    }

                    void call(Chronometer meter) const override {
                        call(meter, is_callable<Fun(Chronometer)>());
                    }
                    void call(Chronometer meter, std::true_type) const {
                        fun(meter);
                    }
                    void call(Chronometer meter, std::false_type) const {
                        meter.measure(fun);
                    }

                    Fun fun;
                };

                struct do_nothing { void operator()() const {} };

                template <typename T>
                BenchmarkFunction(model<T>* c) : f(c) {}

            public:
                BenchmarkFunction()
                    : f(new model<do_nothing>{ {} }) {}

                template <typename Fun,
                    std::enable_if_t<!is_related<Fun, BenchmarkFunction>::value, int> = 0>
                    BenchmarkFunction(Fun&& fun)
                    : f(new model<std::decay_t<Fun>>(CATCH_FORWARD(fun))) {}

                BenchmarkFunction( BenchmarkFunction&& that ) noexcept:
                    f( CATCH_MOVE( that.f ) ) {}

                BenchmarkFunction(BenchmarkFunction const& that)
                    : f(that.f->clone()) {}

                BenchmarkFunction&
                operator=( BenchmarkFunction&& that ) noexcept {
                    f = CATCH_MOVE( that.f );
                    return *this;
                }

                BenchmarkFunction& operator=(BenchmarkFunction const& that) {
                    f = that.f->clone();
                    return *this;
                }

                void operator()(Chronometer meter) const { f->call(meter); }

            private:
                Catch::Detail::unique_ptr<callable> f;
            };
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_BENCHMARK_FUNCTION_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_REPEAT_HPP_INCLUDED
#define CATCH_REPEAT_HPP_INCLUDED

#include <type_traits>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename Fun>
            struct repeater {
                void operator()(int k) const {
                    for (int i = 0; i < k; ++i) {
                        fun();
                    }
                }
                Fun fun;
            };
            template <typename Fun>
            repeater<std::decay_t<Fun>> repeat(Fun&& fun) {
                return { CATCH_FORWARD(fun) };
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_REPEAT_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_RUN_FOR_AT_LEAST_HPP_INCLUDED
#define CATCH_RUN_FOR_AT_LEAST_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_MEASURE_HPP_INCLUDED
#define CATCH_MEASURE_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_COMPLETE_INVOKE_HPP_INCLUDED
#define CATCH_COMPLETE_INVOKE_HPP_INCLUDED


namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename T>
            struct CompleteType { using type = T; };
            template <>
            struct CompleteType<void> { struct type {}; };

            template <typename T>
            using CompleteType_t = typename CompleteType<T>::type;

            template <typename Result>
            struct CompleteInvoker {
                template <typename Fun, typename... Args>
                static Result invoke(Fun&& fun, Args&&... args) {
                    return CATCH_FORWARD(fun)(CATCH_FORWARD(args)...);
                }
            };
            template <>
            struct CompleteInvoker<void> {
                template <typename Fun, typename... Args>
                static CompleteType_t<void> invoke(Fun&& fun, Args&&... args) {
                    CATCH_FORWARD(fun)(CATCH_FORWARD(args)...);
                    return {};
                }
            };

            // invoke and not return void :(
            template <typename Fun, typename... Args>
            CompleteType_t<FunctionReturnType<Fun, Args...>> complete_invoke(Fun&& fun, Args&&... args) {
                return CompleteInvoker<FunctionReturnType<Fun, Args...>>::invoke(CATCH_FORWARD(fun), CATCH_FORWARD(args)...);
            }

        } // namespace Detail

        template <typename Fun>
        Detail::CompleteType_t<FunctionReturnType<Fun>> user_code(Fun&& fun) {
            return Detail::complete_invoke(CATCH_FORWARD(fun));
        }
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_COMPLETE_INVOKE_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_TIMING_HPP_INCLUDED
#define CATCH_TIMING_HPP_INCLUDED


#include <type_traits>

namespace Catch {
    namespace Benchmark {
        template <typename Duration, typename Result>
        struct Timing {
            Duration elapsed;
            Result result;
            int iterations;
        };
        template <typename Clock, typename Func, typename... Args>
        using TimingOf = Timing<ClockDuration<Clock>, Detail::CompleteType_t<FunctionReturnType<Func, Args...>>>;
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_TIMING_HPP_INCLUDED

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename Clock, typename Fun, typename... Args>
            TimingOf<Clock, Fun, Args...> measure(Fun&& fun, Args&&... args) {
                auto start = Clock::now();
                auto&& r = Detail::complete_invoke(fun, CATCH_FORWARD(args)...);
                auto end = Clock::now();
                auto delta = end - start;
                return { delta, CATCH_FORWARD(r), 1 };
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_MEASURE_HPP_INCLUDED

#include <type_traits>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename Clock, typename Fun>
            TimingOf<Clock, Fun, int> measure_one(Fun&& fun, int iters, std::false_type) {
                return Detail::measure<Clock>(fun, iters);
            }
            template <typename Clock, typename Fun>
            TimingOf<Clock, Fun, Chronometer> measure_one(Fun&& fun, int iters, std::true_type) {
                Detail::ChronometerModel<Clock> meter;
                auto&& result = Detail::complete_invoke(fun, Chronometer(meter, iters));

                return { meter.elapsed(), CATCH_MOVE(result), iters };
            }

            template <typename Clock, typename Fun>
            using run_for_at_least_argument_t = std::conditional_t<is_callable<Fun(Chronometer)>::value, Chronometer, int>;


            [[noreturn]]
            void throw_optimized_away_error();

            template <typename Clock, typename Fun>
            TimingOf<Clock, Fun, run_for_at_least_argument_t<Clock, Fun>>
                run_for_at_least(ClockDuration<Clock> how_long,
                                 const int initial_iterations,
                                 Fun&& fun) {
                auto iters = initial_iterations;
                while (iters < (1 << 30)) {
                    auto&& Timing = measure_one<Clock>(fun, iters, is_callable<Fun(Chronometer)>());

                    if (Timing.elapsed >= how_long) {
                        return { Timing.elapsed, CATCH_MOVE(Timing.result), iters };
                    }
                    iters *= 2;
                }
                throw_optimized_away_error();
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_RUN_FOR_AT_LEAST_HPP_INCLUDED

#include <vector>

namespace Catch {
    namespace Benchmark {
        template <typename Duration>
        struct ExecutionPlan {
            int iterations_per_sample;
            Duration estimated_duration;
            Detail::BenchmarkFunction benchmark;
            Duration warmup_time;
            int warmup_iterations;

            template <typename Duration2>
            operator ExecutionPlan<Duration2>() const {
                return { iterations_per_sample, estimated_duration, benchmark, warmup_time, warmup_iterations };
            }

            template <typename Clock>
            std::vector<FloatDuration<Clock>> run(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
                // warmup a bit
                Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_iterations, Detail::repeat(now<Clock>{}));

                std::vector<FloatDuration<Clock>> times;
                const auto num_samples = cfg.benchmarkSamples();
                times.reserve( num_samples );
                for ( size_t i = 0; i < num_samples; ++i ) {
                    Detail::ChronometerModel<Clock> model;
                    this->benchmark( Chronometer( model, iterations_per_sample ) );
                    auto sample_time = model.elapsed() - env.clock_cost.mean;
                    if ( sample_time < FloatDuration<Clock>::zero() ) {
                        sample_time = FloatDuration<Clock>::zero();
                    }
                    times.push_back(sample_time / iterations_per_sample);
                }
                return times;
            }
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_EXECUTION_PLAN_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_ESTIMATE_CLOCK_HPP_INCLUDED
#define CATCH_ESTIMATE_CLOCK_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_STATS_HPP_INCLUDED
#define CATCH_STATS_HPP_INCLUDED


#include <algorithm>
#include <vector>
#include <cmath>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            using sample = std::vector<double>;

            // Used when we know we want == comparison of two doubles
            // to centralize warning suppression
            bool directCompare( double lhs, double rhs );

            double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last);

            OutlierClassification
            classify_outliers( std::vector<double>::const_iterator first,
                               std::vector<double>::const_iterator last );

            double mean( std::vector<double>::const_iterator first,
                         std::vector<double>::const_iterator last );

            template <typename Estimator>
            sample jackknife(Estimator&& estimator,
                             std::vector<double>::iterator first,
                             std::vector<double>::iterator last) {
                auto n = static_cast<size_t>(last - first);
                auto second = first;
                ++second;
                sample results;
                results.reserve(n);

                for (auto it = first; it != last; ++it) {
                    std::iter_swap(it, first);
                    results.push_back(estimator(second, last));
                }

                return results;
            }

            inline double normal_cdf(double x) {
                return std::erfc(-x / std::sqrt(2.0)) / 2.0;
            }

            double erfc_inv(double x);

            double normal_quantile(double p);

            template <typename Estimator>
            Estimate<double> bootstrap( double confidence_level,
                                        std::vector<double>::iterator first,
                                        std::vector<double>::iterator last,
                                        sample const& resample,
                                        Estimator&& estimator ) {
                auto n_samples = last - first;

                double point = estimator(first, last);
                // Degenerate case with a single sample
                if (n_samples == 1) return { point, point, point, confidence_level };

                sample jack = jackknife(estimator, first, last);
                double jack_mean = mean(jack.begin(), jack.end());
                double sum_squares = 0, sum_cubes = 0;
                for (double x : jack) {
                    auto difference = jack_mean - x;
                    auto square = difference * difference;
                    auto cube = square * difference;
                    sum_squares += square; sum_cubes += cube;
                }

                double accel = sum_cubes / (6 * std::pow(sum_squares, 1.5));
                long n = static_cast<long>(resample.size());
                double prob_n = std::count_if(resample.begin(), resample.end(), [point](double x) { return x < point; }) / static_cast<double>(n);
                // degenerate case with uniform samples
                if ( directCompare( prob_n, 0. ) ) {
                    return { point, point, point, confidence_level };
                }

                double bias = normal_quantile(prob_n);
                double z1 = normal_quantile((1. - confidence_level) / 2.);

                auto cumn = [n]( double x ) -> long {
                    return std::lround( normal_cdf( x ) * static_cast<double>(n) );
                };
                auto a = [bias, accel](double b) { return bias + b / (1. - accel * b); };
                double b1 = bias + z1;
                double b2 = bias - z1;
                double a1 = a(b1);
                double a2 = a(b2);
                auto lo = static_cast<size_t>((std::max)(cumn(a1), 0l));
                auto hi = static_cast<size_t>((std::min)(cumn(a2), n - 1));

                return { point, resample[lo], resample[hi], confidence_level };
            }

            struct bootstrap_analysis {
                Estimate<double> mean;
                Estimate<double> standard_deviation;
                double outlier_variance;
            };

            bootstrap_analysis analyse_samples(double confidence_level,
                                               unsigned int n_resamples,
                                               std::vector<double>::iterator first,
                                               std::vector<double>::iterator last);
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_STATS_HPP_INCLUDED

#include <algorithm>
#include <vector>
#include <cmath>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename Clock>
            std::vector<double> resolution(int k) {
                std::vector<TimePoint<Clock>> times;
                times.reserve(static_cast<size_t>(k + 1));
                for ( int i = 0; i < k + 1; ++i ) {
                    times.push_back( Clock::now() );
                }

                std::vector<double> deltas;
                deltas.reserve(static_cast<size_t>(k));
                for ( size_t idx = 1; idx < times.size(); ++idx ) {
                    deltas.push_back( static_cast<double>(
                        ( times[idx] - times[idx - 1] ).count() ) );
                }

                return deltas;
            }

            constexpr auto warmup_iterations = 10000;
            constexpr auto warmup_time = std::chrono::milliseconds(100);
            constexpr auto minimum_ticks = 1000;
            constexpr auto warmup_seed = 10000;
            constexpr auto clock_resolution_estimation_time = std::chrono::milliseconds(500);
            constexpr auto clock_cost_estimation_time_limit = std::chrono::seconds(1);
            constexpr auto clock_cost_estimation_tick_limit = 100000;
            constexpr auto clock_cost_estimation_time = std::chrono::milliseconds(10);
            constexpr auto clock_cost_estimation_iterations = 10000;

            template <typename Clock>
            int warmup() {
                return run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_seed, &resolution<Clock>)
                    .iterations;
            }
            template <typename Clock>
            EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_resolution(int iterations) {
                auto r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_resolution_estimation_time), iterations, &resolution<Clock>)
                    .result;
                return {
                    FloatDuration<Clock>(mean(r.begin(), r.end())),
                    classify_outliers(r.begin(), r.end()),
                };
            }
            template <typename Clock>
            EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_cost(FloatDuration<Clock> resolution) {
                auto time_limit = (std::min)(
                    resolution * clock_cost_estimation_tick_limit,
                    FloatDuration<Clock>(clock_cost_estimation_time_limit));
                auto time_clock = [](int k) {
                    return Detail::measure<Clock>([k] {
                        for (int i = 0; i < k; ++i) {
                            volatile auto ignored = Clock::now();
                            (void)ignored;
                        }
                    }).elapsed;
                };
                time_clock(1);
                int iters = clock_cost_estimation_iterations;
                auto&& r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_cost_estimation_time), iters, time_clock);
                std::vector<double> times;
                int nsamples = static_cast<int>(std::ceil(time_limit / r.elapsed));
                times.reserve(static_cast<size_t>(nsamples));
                for ( int s = 0; s < nsamples; ++s ) {
                    times.push_back( static_cast<double>(
                        ( time_clock( r.iterations ) / r.iterations )
                            .count() ) );
                }
                return {
                    FloatDuration<Clock>(mean(times.begin(), times.end())),
                    classify_outliers(times.begin(), times.end()),
                };
            }

            template <typename Clock>
            Environment<FloatDuration<Clock>> measure_environment() {
#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif
                static Catch::Detail::unique_ptr<Environment<FloatDuration<Clock>>> env;
#if defined(__clang__)
#    pragma clang diagnostic pop
#endif
                if (env) {
                    return *env;
                }

                auto iters = Detail::warmup<Clock>();
                auto resolution = Detail::estimate_clock_resolution<Clock>(iters);
                auto cost = Detail::estimate_clock_cost<Clock>(resolution.mean);

                env = Catch::Detail::make_unique<Environment<FloatDuration<Clock>>>( Environment<FloatDuration<Clock>>{resolution, cost} );
                return *env;
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_ESTIMATE_CLOCK_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_ANALYSE_HPP_INCLUDED
#define CATCH_ANALYSE_HPP_INCLUDED



// Adapted from donated nonius code.

#ifndef CATCH_SAMPLE_ANALYSIS_HPP_INCLUDED
#define CATCH_SAMPLE_ANALYSIS_HPP_INCLUDED


#include <vector>

namespace Catch {
    namespace Benchmark {
        template <typename Duration>
        struct SampleAnalysis {
            std::vector<Duration> samples;
            Estimate<Duration> mean;
            Estimate<Duration> standard_deviation;
            OutlierClassification outliers;
            double outlier_variance;

            template <typename Duration2>
            operator SampleAnalysis<Duration2>() const {
                std::vector<Duration2> samples2;
                samples2.reserve(samples.size());
                for (auto const& d : samples) {
                    samples2.push_back(Duration2(d));
                }
                return {
                    CATCH_MOVE(samples2),
                    mean,
                    standard_deviation,
                    outliers,
                    outlier_variance,
                };
            }
        };
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_SAMPLE_ANALYSIS_HPP_INCLUDED

#include <vector>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename Duration, typename Iterator>
            SampleAnalysis<Duration> analyse(const IConfig &cfg, Environment<Duration>, Iterator first, Iterator last) {
                if (!cfg.benchmarkNoAnalysis()) {
                    std::vector<double> samples;
                    samples.reserve(static_cast<size_t>(last - first));
                    for (auto current = first; current != last; ++current) {
                        samples.push_back( current->count() );
                    }

                    auto analysis = Catch::Benchmark::Detail::analyse_samples(cfg.benchmarkConfidenceInterval(), cfg.benchmarkResamples(), samples.begin(), samples.end());
                    auto outliers = Catch::Benchmark::Detail::classify_outliers(samples.begin(), samples.end());

                    auto wrap_estimate = [](Estimate<double> e) {
                        return Estimate<Duration> {
                            Duration(e.point),
                                Duration(e.lower_bound),
                                Duration(e.upper_bound),
                                e.confidence_interval,
                        };
                    };
                    std::vector<Duration> samples2;
                    samples2.reserve(samples.size());
                    for (auto s : samples) {
                        samples2.push_back( Duration( s ) );
                    }

                    return {
                        CATCH_MOVE(samples2),
                        wrap_estimate(analysis.mean),
                        wrap_estimate(analysis.standard_deviation),
                        outliers,
                        analysis.outlier_variance,
                    };
                } else {
                    std::vector<Duration> samples;
                    samples.reserve(static_cast<size_t>(last - first));

                    Duration mean = Duration(0);
                    int i = 0;
                    for (auto it = first; it < last; ++it, ++i) {
                        samples.push_back(Duration(*it));
                        mean += Duration(*it);
                    }
                    mean /= i;

                    return {
                        CATCH_MOVE(samples),
                        Estimate<Duration>{mean, mean, mean, 0.0},
                        Estimate<Duration>{Duration(0), Duration(0), Duration(0), 0.0},
                        OutlierClassification{},
                        0.0
                    };
                }
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_ANALYSE_HPP_INCLUDED

#include <algorithm>
#include <chrono>
#include <exception>
#include <functional>
#include <string>
#include <vector>
#include <cmath>

namespace Catch {
    namespace Benchmark {
        struct Benchmark {
            Benchmark(std::string&& benchmarkName)
                : name(CATCH_MOVE(benchmarkName)) {}

            template <class FUN>
            Benchmark(std::string&& benchmarkName , FUN &&func)
                : fun(CATCH_MOVE(func)), name(CATCH_MOVE(benchmarkName)) {}

            template <typename Clock>
            ExecutionPlan<FloatDuration<Clock>> prepare(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
                auto min_time = env.clock_resolution.mean * Detail::minimum_ticks;
                auto run_time = std::max(min_time, std::chrono::duration_cast<decltype(min_time)>(cfg.benchmarkWarmupTime()));
                auto&& test = Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(run_time), 1, fun);
                int new_iters = static_cast<int>(std::ceil(min_time * test.iterations / test.elapsed));
                return { new_iters, test.elapsed / test.iterations * new_iters * cfg.benchmarkSamples(), fun, std::chrono::duration_cast<FloatDuration<Clock>>(cfg.benchmarkWarmupTime()), Detail::warmup_iterations };
            }

            template <typename Clock = default_clock>
            void run() {
                auto const* cfg = getCurrentContext().getConfig();

                auto env = Detail::measure_environment<Clock>();

                getResultCapture().benchmarkPreparing(name);
                CATCH_TRY{
                    auto plan = user_code([&] {
                        return prepare<Clock>(*cfg, env);
                    });

                    BenchmarkInfo info {
                        CATCH_MOVE(name),
                        plan.estimated_duration.count(),
                        plan.iterations_per_sample,
                        cfg->benchmarkSamples(),
                        cfg->benchmarkResamples(),
                        env.clock_resolution.mean.count(),
                        env.clock_cost.mean.count()
                    };

                    getResultCapture().benchmarkStarting(info);

                    auto samples = user_code([&] {
                        return plan.template run<Clock>(*cfg, env);
                    });

                    auto analysis = Detail::analyse(*cfg, env, samples.begin(), samples.end());
                    BenchmarkStats<FloatDuration<Clock>> stats{ CATCH_MOVE(info), CATCH_MOVE(analysis.samples), analysis.mean, analysis.standard_deviation, analysis.outliers, analysis.outlier_variance };
                    getResultCapture().benchmarkEnded(stats);
                } CATCH_CATCH_ANON (TestFailureException const&) {
                    getResultCapture().benchmarkFailed("Benchmark failed due to failed assertion"_sr);
                } CATCH_CATCH_ALL{
                    getResultCapture().benchmarkFailed(translateActiveException());
                    // We let the exception go further up so that the
                    // test case is marked as failed.
                    std::rethrow_exception(std::current_exception());
                }
            }

            // sets lambda to be used in fun *and* executes benchmark!
            template <typename Fun, std::enable_if_t<!Detail::is_related<Fun, Benchmark>::value, int> = 0>
                Benchmark & operator=(Fun func) {
                auto const* cfg = getCurrentContext().getConfig();
                if (!cfg->skipBenchmarks()) {
                    fun = Detail::BenchmarkFunction(func);
                    run();
                }
                return *this;
            }

            explicit operator bool() {
                return true;
            }

        private:
            Detail::BenchmarkFunction fun;
            std::string name;
        };
    }
} // namespace Catch

#define INTERNAL_CATCH_GET_1_ARG(arg1, arg2, ...) arg1
#define INTERNAL_CATCH_GET_2_ARG(arg1, arg2, ...) arg2

#define INTERNAL_CATCH_BENCHMARK(BenchmarkName, name, benchmarkIndex)\
    if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
        BenchmarkName = [&](int benchmarkIndex)

#define INTERNAL_CATCH_BENCHMARK_ADVANCED(BenchmarkName, name)\
    if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
        BenchmarkName = [&]

#if defined(CATCH_CONFIG_PREFIX_ALL)

#define CATCH_BENCHMARK(...) \
    INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
#define CATCH_BENCHMARK_ADVANCED(name) \
    INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), name)

#else

#define BENCHMARK(...) \
    INTERNAL_CATCH_BENCHMARK(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__,,), INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__,,))
#define BENCHMARK_ADVANCED(name) \
    INTERNAL_CATCH_BENCHMARK_ADVANCED(INTERNAL_CATCH_UNIQUE_NAME(CATCH2_INTERNAL_BENCHMARK_), name)

#endif

#endif // CATCH_BENCHMARK_HPP_INCLUDED


// Adapted from donated nonius code.

#ifndef CATCH_CONSTRUCTOR_HPP_INCLUDED
#define CATCH_CONSTRUCTOR_HPP_INCLUDED


#include <type_traits>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            template <typename T, bool Destruct>
            struct ObjectStorage
            {
                ObjectStorage() = default;

                ObjectStorage(const ObjectStorage& other)
                {
                    new(&data) T(other.stored_object());
                }

                ObjectStorage(ObjectStorage&& other)
                {
                    new(data) T(CATCH_MOVE(other.stored_object()));
                }

                ~ObjectStorage() { destruct_on_exit<T>(); }

                template <typename... Args>
                void construct(Args&&... args)
                {
                    new (data) T(CATCH_FORWARD(args)...);
                }

                template <bool AllowManualDestruction = !Destruct>
                std::enable_if_t<AllowManualDestruction> destruct()
                {
                    stored_object().~T();
                }

            private:
                // If this is a constructor benchmark, destruct the underlying object
                template <typename U>
                void destruct_on_exit(std::enable_if_t<Destruct, U>* = nullptr) { destruct<true>(); }
                // Otherwise, don't
                template <typename U>
                void destruct_on_exit(std::enable_if_t<!Destruct, U>* = nullptr) { }

#if defined( __GNUC__ ) && __GNUC__ <= 6
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wstrict-aliasing"
#endif
                T& stored_object() { return *reinterpret_cast<T*>( data ); }

                T const& stored_object() const {
                    return *reinterpret_cast<T const*>( data );
                }
#if defined( __GNUC__ ) && __GNUC__ <= 6
#    pragma GCC diagnostic pop
#endif

                alignas( T ) unsigned char data[sizeof( T )]{};
            };
        } // namespace Detail

        template <typename T>
        using storage_for = Detail::ObjectStorage<T, true>;

        template <typename T>
        using destructable_object = Detail::ObjectStorage<T, false>;
    } // namespace Benchmark
} // namespace Catch

#endif // CATCH_CONSTRUCTOR_HPP_INCLUDED

#endif // CATCH_BENCHMARK_ALL_HPP_INCLUDED


#ifndef CATCH_APPROX_HPP_INCLUDED
#define CATCH_APPROX_HPP_INCLUDED



#ifndef CATCH_TOSTRING_HPP_INCLUDED
#define CATCH_TOSTRING_HPP_INCLUDED


#include <vector>
#include <cstddef>
#include <type_traits>
#include <string>




/** \file
 * Wrapper for the WCHAR configuration option
 *
 * We want to support platforms that do not provide `wchar_t`, so we
 * sometimes have to disable providing wchar_t overloads through Catch2,
 * e.g. the StringMaker specialization for `std::wstring`.
 */

#ifndef CATCH_CONFIG_WCHAR_HPP_INCLUDED
#define CATCH_CONFIG_WCHAR_HPP_INCLUDED


// We assume that WCHAR should be enabled by default, and only disabled
// for a shortlist (so far only DJGPP) of compilers.

#if defined(__DJGPP__)
#  define CATCH_INTERNAL_CONFIG_NO_WCHAR
#endif // __DJGPP__

#if !defined( CATCH_INTERNAL_CONFIG_NO_WCHAR ) && \
    !defined( CATCH_CONFIG_NO_WCHAR ) && \
    !defined( CATCH_CONFIG_WCHAR )
#    define CATCH_CONFIG_WCHAR
#endif

#endif // CATCH_CONFIG_WCHAR_HPP_INCLUDED


#ifndef CATCH_REUSABLE_STRING_STREAM_HPP_INCLUDED
#define CATCH_REUSABLE_STRING_STREAM_HPP_INCLUDED


#include <iosfwd>
#include <cstddef>
#include <ostream>
#include <string>

namespace Catch {

    class ReusableStringStream : Detail::NonCopyable {
        std::size_t m_index;
        std::ostream* m_oss;
    public:
        ReusableStringStream();
        ~ReusableStringStream();

        //! Returns the serialized state
        std::string str() const;
        //! Sets internal state to `str`
        void str(std::string const& str);

#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
// Old versions of GCC do not understand -Wnonnull-compare
#pragma GCC diagnostic ignored "-Wpragmas"
// Streaming a function pointer triggers Waddress and Wnonnull-compare
// on GCC, because it implicitly converts it to bool and then decides
// that the check it uses (a? true : false) is tautological and cannot
// be null...
#pragma GCC diagnostic ignored "-Waddress"
#pragma GCC diagnostic ignored "-Wnonnull-compare"
#endif

        template<typename T>
        auto operator << ( T const& value ) -> ReusableStringStream& {
            *m_oss << value;
            return *this;
        }

#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
        auto get() -> std::ostream& { return *m_oss; }
    };
}

#endif // CATCH_REUSABLE_STRING_STREAM_HPP_INCLUDED


#ifndef CATCH_VOID_TYPE_HPP_INCLUDED
#define CATCH_VOID_TYPE_HPP_INCLUDED


namespace Catch {
    namespace Detail {

        template <typename...>
        struct make_void { using type = void; };

        template <typename... Ts>
        using void_t = typename make_void<Ts...>::type;

    } // namespace Detail
} // namespace Catch


#endif // CATCH_VOID_TYPE_HPP_INCLUDED


#ifndef CATCH_INTERFACES_ENUM_VALUES_REGISTRY_HPP_INCLUDED
#define CATCH_INTERFACES_ENUM_VALUES_REGISTRY_HPP_INCLUDED


#include <vector>

namespace Catch {

    namespace Detail {
        struct EnumInfo {
            StringRef m_name;
            std::vector<std::pair<int, StringRef>> m_values;

            ~EnumInfo();

            StringRef lookup( int value ) const;
        };
    } // namespace Detail

    class IMutableEnumValuesRegistry {
    public:
        virtual ~IMutableEnumValuesRegistry(); // = default;

        virtual Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values ) = 0;

        template<typename E>
        Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::initializer_list<E> values ) {
            static_assert(sizeof(int) >= sizeof(E), "Cannot serialize enum to int");
            std::vector<int> intValues;
            intValues.reserve( values.size() );
            for( auto enumValue : values )
                intValues.push_back( static_cast<int>( enumValue ) );
            return registerEnum( enumName, allEnums, intValues );
        }
    };

} // Catch

#endif // CATCH_INTERFACES_ENUM_VALUES_REGISTRY_HPP_INCLUDED

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
#include <string_view>
#endif

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
#endif

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy{};
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {
    // Bring in global namespace operator<< for ADL lookup in
    // `IsStreamInsertable` below.
    using ::operator<<;

    namespace Detail {

        inline std::size_t catch_strnlen(const char *str, std::size_t n) {
            auto ret = std::char_traits<char>::find(str, n, '\0');
            if (ret != nullptr) {
                return static_cast<std::size_t>(ret - str);
            }
            return n;
        }

        constexpr StringRef unprintableString = "{?}"_sr;

        //! Encases `string in quotes, and optionally escapes invisibles
        std::string convertIntoString( StringRef string, bool escapeInvisibles );

        //! Encases `string` in quotes, and escapes invisibles if user requested
        //! it via CLI
        std::string convertIntoString( StringRef string );

        std::string rawMemoryToString( const void *object, std::size_t size );

        template<typename T>
        std::string rawMemoryToString( const T& object ) {
          return rawMemoryToString( &object, sizeof(object) );
        }

        template<typename T>
        class IsStreamInsertable {
            template<typename Stream, typename U>
            static auto test(int)
                -> decltype(std::declval<Stream&>() << std::declval<U>(), std::true_type());

            template<typename, typename>
            static auto test(...)->std::false_type;

        public:
            static const bool value = decltype(test<std::ostream, const T&>(0))::value;
        };

        template<typename E>
        std::string convertUnknownEnumToString( E e );

        template<typename T>
        std::enable_if_t<
            !std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
        std::string> convertUnstreamable( T const& ) {
            return std::string(Detail::unprintableString);
        }
        template<typename T>
        std::enable_if_t<
            !std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
         std::string> convertUnstreamable(T const& ex) {
            return ex.what();
        }


        template<typename T>
        std::enable_if_t<
            std::is_enum<T>::value,
        std::string> convertUnstreamable( T const& value ) {
            return convertUnknownEnumToString( value );
        }

#if defined(_MANAGED)
        //! Convert a CLR string to a utf8 std::string
        template<typename T>
        std::string clrReferenceToString( T^ ref ) {
            if (ref == nullptr)
                return std::string("null");
            auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
            cli::pin_ptr<System::Byte> p = &bytes[0];
            return std::string(reinterpret_cast<char const *>(p), bytes->Length);
        }
#endif

    } // namespace Detail


    template <typename T, typename = void>
    struct StringMaker {
        template <typename Fake = T>
        static
        std::enable_if_t<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>
            convert(const Fake& value) {
                ReusableStringStream rss;
                // NB: call using the function-like syntax to avoid ambiguity with
                // user-defined templated operator<< under clang.
                rss.operator<<(value);
                return rss.str();
        }

        template <typename Fake = T>
        static
        std::enable_if_t<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>
            convert( const Fake& value ) {
#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
            return Detail::convertUnstreamable(value);
#else
            return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
#endif
        }
    };

    namespace Detail {

        // This function dispatches all stringification requests inside of Catch.
        // Should be preferably called fully qualified, like ::Catch::Detail::stringify
        template <typename T>
        std::string stringify(const T& e) {
            return ::Catch::StringMaker<std::remove_cv_t<std::remove_reference_t<T>>>::convert(e);
        }

        template<typename E>
        std::string convertUnknownEnumToString( E e ) {
            return ::Catch::Detail::stringify(static_cast<std::underlying_type_t<E>>(e));
        }

#if defined(_MANAGED)
        template <typename T>
        std::string stringify( T^ e ) {
            return ::Catch::StringMaker<T^>::convert(e);
        }
#endif

    } // namespace Detail

    // Some predefined specializations

    template<>
    struct StringMaker<std::string> {
        static std::string convert(const std::string& str);
    };

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
    template<>
    struct StringMaker<std::string_view> {
        static std::string convert(std::string_view str);
    };
#endif

    template<>
    struct StringMaker<char const *> {
        static std::string convert(char const * str);
    };
    template<>
    struct StringMaker<char *> {
        static std::string convert(char * str);
    };

#if defined(CATCH_CONFIG_WCHAR)
    template<>
    struct StringMaker<std::wstring> {
        static std::string convert(const std::wstring& wstr);
    };

# ifdef CATCH_CONFIG_CPP17_STRING_VIEW
    template<>
    struct StringMaker<std::wstring_view> {
        static std::string convert(std::wstring_view str);
    };
# endif

    template<>
    struct StringMaker<wchar_t const *> {
        static std::string convert(wchar_t const * str);
    };
    template<>
    struct StringMaker<wchar_t *> {
        static std::string convert(wchar_t * str);
    };
#endif // CATCH_CONFIG_WCHAR

    template<size_t SZ>
    struct StringMaker<char[SZ]> {
        static std::string convert(char const* str) {
            return Detail::convertIntoString(
                StringRef( str, Detail::catch_strnlen( str, SZ ) ) );
        }
    };
    template<size_t SZ>
    struct StringMaker<signed char[SZ]> {
        static std::string convert(signed char const* str) {
            auto reinterpreted = reinterpret_cast<char const*>(str);
            return Detail::convertIntoString(
                StringRef(reinterpreted, Detail::catch_strnlen(reinterpreted, SZ)));
        }
    };
    template<size_t SZ>
    struct StringMaker<unsigned char[SZ]> {
        static std::string convert(unsigned char const* str) {
            auto reinterpreted = reinterpret_cast<char const*>(str);
            return Detail::convertIntoString(
                StringRef(reinterpreted, Detail::catch_strnlen(reinterpreted, SZ)));
        }
    };

#if defined(CATCH_CONFIG_CPP17_BYTE)
    template<>
    struct StringMaker<std::byte> {
        static std::string convert(std::byte value);
    };
#endif // defined(CATCH_CONFIG_CPP17_BYTE)
    template<>
    struct StringMaker<int> {
        static std::string convert(int value);
    };
    template<>
    struct StringMaker<long> {
        static std::string convert(long value);
    };
    template<>
    struct StringMaker<long long> {
        static std::string convert(long long value);
    };
    template<>
    struct StringMaker<unsigned int> {
        static std::string convert(unsigned int value);
    };
    template<>
    struct StringMaker<unsigned long> {
        static std::string convert(unsigned long value);
    };
    template<>
    struct StringMaker<unsigned long long> {
        static std::string convert(unsigned long long value);
    };

    template<>
    struct StringMaker<bool> {
        static std::string convert(bool b) {
            using namespace std::string_literals;
            return b ? "true"s : "false"s;
        }
    };

    template<>
    struct StringMaker<char> {
        static std::string convert(char c);
    };
    template<>
    struct StringMaker<signed char> {
        static std::string convert(signed char c);
    };
    template<>
    struct StringMaker<unsigned char> {
        static std::string convert(unsigned char c);
    };

    template<>
    struct StringMaker<std::nullptr_t> {
        static std::string convert(std::nullptr_t) {
            using namespace std::string_literals;
            return "nullptr"s;
        }
    };

    template<>
    struct StringMaker<float> {
        static std::string convert(float value);
        CATCH_EXPORT static int precision;
    };

    template<>
    struct StringMaker<double> {
        static std::string convert(double value);
        CATCH_EXPORT static int precision;
    };

    template <typename T>
    struct StringMaker<T*> {
        template <typename U>
        static std::string convert(U* p) {
            if (p) {
                return ::Catch::Detail::rawMemoryToString(p);
            } else {
                return "nullptr";
            }
        }
    };

    template <typename R, typename C>
    struct StringMaker<R C::*> {
        static std::string convert(R C::* p) {
            if (p) {
                return ::Catch::Detail::rawMemoryToString(p);
            } else {
                return "nullptr";
            }
        }
    };

#if defined(_MANAGED)
    template <typename T>
    struct StringMaker<T^> {
        static std::string convert( T^ ref ) {
            return ::Catch::Detail::clrReferenceToString(ref);
        }
    };
#endif

    namespace Detail {
        template<typename InputIterator, typename Sentinel = InputIterator>
        std::string rangeToString(InputIterator first, Sentinel last) {
            ReusableStringStream rss;
            rss << "{ ";
            if (first != last) {
                rss << ::Catch::Detail::stringify(*first);
                for (++first; first != last; ++first)
                    rss << ", " << ::Catch::Detail::stringify(*first);
            }
            rss << " }";
            return rss.str();
        }
    }

} // namespace Catch

//////////////////////////////////////////////////////
// Separate std-lib types stringification, so it can be selectively enabled
// This means that we do not bring in their headers

#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
#  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
#endif

// Separate std::pair specialization
#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
#include <utility>
namespace Catch {
    template<typename T1, typename T2>
    struct StringMaker<std::pair<T1, T2> > {
        static std::string convert(const std::pair<T1, T2>& pair) {
            ReusableStringStream rss;
            rss << "{ "
                << ::Catch::Detail::stringify(pair.first)
                << ", "
                << ::Catch::Detail::stringify(pair.second)
                << " }";
            return rss.str();
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER

#if defined(CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_OPTIONAL)
#include <optional>
namespace Catch {
    template<typename T>
    struct StringMaker<std::optional<T> > {
        static std::string convert(const std::optional<T>& optional) {
            if (optional.has_value()) {
                return ::Catch::Detail::stringify(*optional);
            } else {
                return "{ }";
            }
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER

// Separate std::tuple specialization
#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
#include <tuple>
namespace Catch {
    namespace Detail {
        template<
            typename Tuple,
            std::size_t N = 0,
            bool = (N < std::tuple_size<Tuple>::value)
            >
            struct TupleElementPrinter {
            static void print(const Tuple& tuple, std::ostream& os) {
                os << (N ? ", " : " ")
                    << ::Catch::Detail::stringify(std::get<N>(tuple));
                TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
            }
        };

        template<
            typename Tuple,
            std::size_t N
        >
            struct TupleElementPrinter<Tuple, N, false> {
            static void print(const Tuple&, std::ostream&) {}
        };

    }


    template<typename ...Types>
    struct StringMaker<std::tuple<Types...>> {
        static std::string convert(const std::tuple<Types...>& tuple) {
            ReusableStringStream rss;
            rss << '{';
            Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
            rss << " }";
            return rss.str();
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER

#if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_VARIANT)
#include <variant>
namespace Catch {
    template<>
    struct StringMaker<std::monostate> {
        static std::string convert(const std::monostate&) {
            return "{ }";
        }
    };

    template<typename... Elements>
    struct StringMaker<std::variant<Elements...>> {
        static std::string convert(const std::variant<Elements...>& variant) {
            if (variant.valueless_by_exception()) {
                return "{valueless variant}";
            } else {
                return std::visit(
                    [](const auto& value) {
                        return ::Catch::Detail::stringify(value);
                    },
                    variant
                );
            }
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER

namespace Catch {
    // Import begin/ end from std here
    using std::begin;
    using std::end;

    namespace Detail {
        template <typename T, typename = void>
        struct is_range_impl : std::false_type {};

        template <typename T>
        struct is_range_impl<T, void_t<decltype(begin(std::declval<T>()))>> : std::true_type {};
    } // namespace Detail

    template <typename T>
    struct is_range : Detail::is_range_impl<T> {};

#if defined(_MANAGED) // Managed types are never ranges
    template <typename T>
    struct is_range<T^> {
        static const bool value = false;
    };
#endif

    template<typename Range>
    std::string rangeToString( Range const& range ) {
        return ::Catch::Detail::rangeToString( begin( range ), end( range ) );
    }

    // Handle vector<bool> specially
    template<typename Allocator>
    std::string rangeToString( std::vector<bool, Allocator> const& v ) {
        ReusableStringStream rss;
        rss << "{ ";
        bool first = true;
        for( bool b : v ) {
            if( first )
                first = false;
            else
                rss << ", ";
            rss << ::Catch::Detail::stringify( b );
        }
        rss << " }";
        return rss.str();
    }

    template<typename R>
    struct StringMaker<R, std::enable_if_t<is_range<R>::value && !::Catch::Detail::IsStreamInsertable<R>::value>> {
        static std::string convert( R const& range ) {
            return rangeToString( range );
        }
    };

    template <typename T, size_t SZ>
    struct StringMaker<T[SZ]> {
        static std::string convert(T const(&arr)[SZ]) {
            return rangeToString(arr);
        }
    };


} // namespace Catch

// Separate std::chrono::duration specialization
#include <ctime>
#include <ratio>
#include <chrono>


namespace Catch {

template <class Ratio>
struct ratio_string {
    static std::string symbol() {
        Catch::ReusableStringStream rss;
        rss << '[' << Ratio::num << '/'
            << Ratio::den << ']';
        return rss.str();
    }
};

template <>
struct ratio_string<std::atto> {
    static char symbol() { return 'a'; }
};
template <>
struct ratio_string<std::femto> {
    static char symbol() { return 'f'; }
};
template <>
struct ratio_string<std::pico> {
    static char symbol() { return 'p'; }
};
template <>
struct ratio_string<std::nano> {
    static char symbol() { return 'n'; }
};
template <>
struct ratio_string<std::micro> {
    static char symbol() { return 'u'; }
};
template <>
struct ratio_string<std::milli> {
    static char symbol() { return 'm'; }
};

    ////////////
    // std::chrono::duration specializations
    template<typename Value, typename Ratio>
    struct StringMaker<std::chrono::duration<Value, Ratio>> {
        static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
            ReusableStringStream rss;
            rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
            return rss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
            ReusableStringStream rss;
            rss << duration.count() << " s";
            return rss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
            ReusableStringStream rss;
            rss << duration.count() << " m";
            return rss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
            ReusableStringStream rss;
            rss << duration.count() << " h";
            return rss.str();
        }
    };

    ////////////
    // std::chrono::time_point specialization
    // Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
    template<typename Clock, typename Duration>
    struct StringMaker<std::chrono::time_point<Clock, Duration>> {
        static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
            return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
        }
    };
    // std::chrono::time_point<system_clock> specialization
    template<typename Duration>
    struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
        static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
            auto converted = std::chrono::system_clock::to_time_t(time_point);

#ifdef _MSC_VER
            std::tm timeInfo = {};
            gmtime_s(&timeInfo, &converted);
#else
            std::tm* timeInfo = std::gmtime(&converted);
#endif

            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
            char timeStamp[timeStampSize];
            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
            return std::string(timeStamp, timeStampSize - 1);
        }
    };
}


#define INTERNAL_CATCH_REGISTER_ENUM( enumName, ... ) \
namespace Catch { \
    template<> struct StringMaker<enumName> { \
        static std::string convert( enumName value ) { \
            static const auto& enumInfo = ::Catch::getMutableRegistryHub().getMutableEnumValuesRegistry().registerEnum( #enumName, #__VA_ARGS__, { __VA_ARGS__ } ); \
            return static_cast<std::string>(enumInfo.lookup( static_cast<int>( value ) )); \
        } \
    }; \
}

#define CATCH_REGISTER_ENUM( enumName, ... ) INTERNAL_CATCH_REGISTER_ENUM( enumName, __VA_ARGS__ )

#ifdef _MSC_VER
#pragma warning(pop)
#endif

#endif // CATCH_TOSTRING_HPP_INCLUDED

#include <type_traits>

namespace Catch {

    class Approx {
    private:
        bool equalityComparisonImpl(double other) const;
        // Sets and validates the new margin (margin >= 0)
        void setMargin(double margin);
        // Sets and validates the new epsilon (0 < epsilon < 1)
        void setEpsilon(double epsilon);

    public:
        explicit Approx ( double value );

        static Approx custom();

        Approx operator-() const;

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        Approx operator()( T const& value ) const {
            Approx approx( static_cast<double>(value) );
            approx.m_epsilon = m_epsilon;
            approx.m_margin = m_margin;
            approx.m_scale = m_scale;
            return approx;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        explicit Approx( T const& value ): Approx(static_cast<double>(value))
        {}


        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator == ( const T& lhs, Approx const& rhs ) {
            auto lhs_v = static_cast<double>(lhs);
            return rhs.equalityComparisonImpl(lhs_v);
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator == ( Approx const& lhs, const T& rhs ) {
            return operator==( rhs, lhs );
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator != ( T const& lhs, Approx const& rhs ) {
            return !operator==( lhs, rhs );
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator != ( Approx const& lhs, T const& rhs ) {
            return !operator==( rhs, lhs );
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator <= ( T const& lhs, Approx const& rhs ) {
            return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator <= ( Approx const& lhs, T const& rhs ) {
            return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator >= ( T const& lhs, Approx const& rhs ) {
            return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        friend bool operator >= ( Approx const& lhs, T const& rhs ) {
            return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        Approx& epsilon( T const& newEpsilon ) {
            const auto epsilonAsDouble = static_cast<double>(newEpsilon);
            setEpsilon(epsilonAsDouble);
            return *this;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        Approx& margin( T const& newMargin ) {
            const auto marginAsDouble = static_cast<double>(newMargin);
            setMargin(marginAsDouble);
            return *this;
        }

        template <typename T, typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        Approx& scale( T const& newScale ) {
            m_scale = static_cast<double>(newScale);
            return *this;
        }

        std::string toString() const;

    private:
        double m_epsilon;
        double m_margin;
        double m_scale;
        double m_value;
    };

namespace literals {
    Approx operator ""_a(long double val);
    Approx operator ""_a(unsigned long long val);
} // end namespace literals

template<>
struct StringMaker<Catch::Approx> {
    static std::string convert(Catch::Approx const& value);
};

} // end namespace Catch

#endif // CATCH_APPROX_HPP_INCLUDED


#ifndef CATCH_ASSERTION_INFO_HPP_INCLUDED
#define CATCH_ASSERTION_INFO_HPP_INCLUDED



#ifndef CATCH_SOURCE_LINE_INFO_HPP_INCLUDED
#define CATCH_SOURCE_LINE_INFO_HPP_INCLUDED

#include <cstddef>
#include <iosfwd>

namespace Catch {

    struct SourceLineInfo {

        SourceLineInfo() = delete;
        constexpr SourceLineInfo( char const* _file, std::size_t _line ) noexcept:
            file( _file ),
            line( _line )
        {}

        bool operator == ( SourceLineInfo const& other ) const noexcept;
        bool operator < ( SourceLineInfo const& other ) const noexcept;

        char const* file;
        std::size_t line;

        friend std::ostream& operator << (std::ostream& os, SourceLineInfo const& info);
    };
}

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )

#endif // CATCH_SOURCE_LINE_INFO_HPP_INCLUDED

namespace Catch {

    struct AssertionInfo {
        // AssertionInfo() = delete;

        StringRef macroName;
        SourceLineInfo lineInfo;
        StringRef capturedExpression;
        ResultDisposition::Flags resultDisposition;
    };

} // end namespace Catch

#endif // CATCH_ASSERTION_INFO_HPP_INCLUDED


#ifndef CATCH_ASSERTION_RESULT_HPP_INCLUDED
#define CATCH_ASSERTION_RESULT_HPP_INCLUDED



#ifndef CATCH_LAZY_EXPR_HPP_INCLUDED
#define CATCH_LAZY_EXPR_HPP_INCLUDED

#include <iosfwd>

namespace Catch {

    class ITransientExpression;

    class LazyExpression {
        friend class AssertionHandler;
        friend struct AssertionStats;
        friend class RunContext;

        ITransientExpression const* m_transientExpression = nullptr;
        bool m_isNegated;
    public:
        LazyExpression( bool isNegated ):
            m_isNegated(isNegated)
        {}
        LazyExpression(LazyExpression const& other) = default;
        LazyExpression& operator = ( LazyExpression const& ) = delete;

        explicit operator bool() const {
            return m_transientExpression != nullptr;
        }

        friend auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream&;
    };

} // namespace Catch

#endif // CATCH_LAZY_EXPR_HPP_INCLUDED

#include <string>

namespace Catch {

    struct AssertionResultData
    {
        AssertionResultData() = delete;

        AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );

        std::string message;
        mutable std::string reconstructedExpression;
        LazyExpression lazyExpression;
        ResultWas::OfType resultType;

        std::string reconstructExpression() const;
    };

    class AssertionResult {
    public:
        AssertionResult() = delete;
        AssertionResult( AssertionInfo const& info, AssertionResultData&& data );

        bool isOk() const;
        bool succeeded() const;
        ResultWas::OfType getResultType() const;
        bool hasExpression() const;
        bool hasMessage() const;
        std::string getExpression() const;
        std::string getExpressionInMacro() const;
        bool hasExpandedExpression() const;
        std::string getExpandedExpression() const;
        StringRef getMessage() const;
        SourceLineInfo getSourceInfo() const;
        StringRef getTestMacroName() const;

    //protected:
        AssertionInfo m_info;
        AssertionResultData m_resultData;
    };

} // end namespace Catch

#endif // CATCH_ASSERTION_RESULT_HPP_INCLUDED


#ifndef CATCH_CONFIG_HPP_INCLUDED
#define CATCH_CONFIG_HPP_INCLUDED



#ifndef CATCH_TEST_SPEC_HPP_INCLUDED
#define CATCH_TEST_SPEC_HPP_INCLUDED

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif



#ifndef CATCH_WILDCARD_PATTERN_HPP_INCLUDED
#define CATCH_WILDCARD_PATTERN_HPP_INCLUDED



#ifndef CATCH_CASE_SENSITIVE_HPP_INCLUDED
#define CATCH_CASE_SENSITIVE_HPP_INCLUDED

namespace Catch {

    enum class CaseSensitive { Yes, No };

} // namespace Catch

#endif // CATCH_CASE_SENSITIVE_HPP_INCLUDED

#include <string>

namespace Catch
{
    class WildcardPattern {
        enum WildcardPosition {
            NoWildcard = 0,
            WildcardAtStart = 1,
            WildcardAtEnd = 2,
            WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
        };

    public:

        WildcardPattern( std::string const& pattern, CaseSensitive caseSensitivity );
        bool matches( std::string const& str ) const;

    private:
        std::string normaliseString( std::string const& str ) const;
        CaseSensitive m_caseSensitivity;
        WildcardPosition m_wildcard = NoWildcard;
        std::string m_pattern;
    };
}

#endif // CATCH_WILDCARD_PATTERN_HPP_INCLUDED

#include <iosfwd>
#include <string>
#include <vector>

namespace Catch {

    class IConfig;
    struct TestCaseInfo;
    class TestCaseHandle;

    class TestSpec {

        class Pattern {
        public:
            explicit Pattern( std::string const& name );
            virtual ~Pattern();
            virtual bool matches( TestCaseInfo const& testCase ) const = 0;
            std::string const& name() const;
        private:
            virtual void serializeTo( std::ostream& out ) const = 0;
            // Writes string that would be reparsed into the pattern
            friend std::ostream& operator<<(std::ostream& out,
                                            Pattern const& pattern) {
                pattern.serializeTo( out );
                return out;
            }

            std::string const m_name;
        };

        class NamePattern : public Pattern {
        public:
            explicit NamePattern( std::string const& name, std::string const& filterString );
            bool matches( TestCaseInfo const& testCase ) const override;
        private:
            void serializeTo( std::ostream& out ) const override;

            WildcardPattern m_wildcardPattern;
        };

        class TagPattern : public Pattern {
        public:
            explicit TagPattern( std::string const& tag, std::string const& filterString );
            bool matches( TestCaseInfo const& testCase ) const override;
        private:
            void serializeTo( std::ostream& out ) const override;

            std::string m_tag;
        };

        struct Filter {
            std::vector<Detail::unique_ptr<Pattern>> m_required;
            std::vector<Detail::unique_ptr<Pattern>> m_forbidden;

            //! Serializes this filter into a string that would be parsed into
            //! an equivalent filter
            void serializeTo( std::ostream& out ) const;
            friend std::ostream& operator<<(std::ostream& out, Filter const& f) {
                f.serializeTo( out );
                return out;
            }

            bool matches( TestCaseInfo const& testCase ) const;
        };

        static std::string extractFilterName( Filter const& filter );

    public:
        struct FilterMatch {
            std::string name;
            std::vector<TestCaseHandle const*> tests;
        };
        using Matches = std::vector<FilterMatch>;
        using vectorStrings = std::vector<std::string>;

        bool hasFilters() const;
        bool matches( TestCaseInfo const& testCase ) const;
        Matches matchesByFilter( std::vector<TestCaseHandle> const& testCases, IConfig const& config ) const;
        const vectorStrings & getInvalidSpecs() const;

    private:
        std::vector<Filter> m_filters;
        std::vector<std::string> m_invalidSpecs;

        friend class TestSpecParser;
        //! Serializes this test spec into a string that would be parsed into
        //! equivalent test spec
        void serializeTo( std::ostream& out ) const;
        friend std::ostream& operator<<(std::ostream& out,
                                        TestSpec const& spec) {
            spec.serializeTo( out );
            return out;
        }
    };
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

#endif // CATCH_TEST_SPEC_HPP_INCLUDED


#ifndef CATCH_OPTIONAL_HPP_INCLUDED
#define CATCH_OPTIONAL_HPP_INCLUDED


#include <cassert>

namespace Catch {

    // An optional type
    template<typename T>
    class Optional {
    public:
        Optional(): nullableValue( nullptr ) {}
        ~Optional() { reset(); }

        Optional( T const& _value ):
            nullableValue( new ( storage ) T( _value ) ) {}
        Optional( T&& _value ):
            nullableValue( new ( storage ) T( CATCH_MOVE( _value ) ) ) {}

        Optional& operator=( T const& _value ) {
            reset();
            nullableValue = new ( storage ) T( _value );
            return *this;
        }
        Optional& operator=( T&& _value ) {
            reset();
            nullableValue = new ( storage ) T( CATCH_MOVE( _value ) );
            return *this;
        }

        Optional( Optional const& _other ):
            nullableValue( _other ? new ( storage ) T( *_other ) : nullptr ) {}
        Optional( Optional&& _other ):
            nullableValue( _other ? new ( storage ) T( CATCH_MOVE( *_other ) )
                                  : nullptr ) {}

        Optional& operator=( Optional const& _other ) {
            if ( &_other != this ) {
                reset();
                if ( _other ) { nullableValue = new ( storage ) T( *_other ); }
            }
            return *this;
        }
        Optional& operator=( Optional&& _other ) {
            if ( &_other != this ) {
                reset();
                if ( _other ) {
                    nullableValue = new ( storage ) T( CATCH_MOVE( *_other ) );
                }
            }
            return *this;
        }

        void reset() {
            if ( nullableValue ) { nullableValue->~T(); }
            nullableValue = nullptr;
        }

        T& operator*() {
            assert(nullableValue);
            return *nullableValue;
        }
        T const& operator*() const {
            assert(nullableValue);
            return *nullableValue;
        }
        T* operator->() {
            assert(nullableValue);
            return nullableValue;
        }
        const T* operator->() const {
            assert(nullableValue);
            return nullableValue;
        }

        T valueOr( T const& defaultValue ) const {
            return nullableValue ? *nullableValue : defaultValue;
        }

        bool some() const { return nullableValue != nullptr; }
        bool none() const { return nullableValue == nullptr; }

        bool operator !() const { return nullableValue == nullptr; }
        explicit operator bool() const {
            return some();
        }

        friend bool operator==(Optional const& a, Optional const& b) {
            if (a.none() && b.none()) {
                return true;
            } else if (a.some() && b.some()) {
                return *a == *b;
            } else {
                return false;
            }
        }
        friend bool operator!=(Optional const& a, Optional const& b) {
            return !( a == b );
        }

    private:
        T* nullableValue;
        alignas(alignof(T)) char storage[sizeof(T)];
    };

} // end namespace Catch

#endif // CATCH_OPTIONAL_HPP_INCLUDED


#ifndef CATCH_RANDOM_SEED_GENERATION_HPP_INCLUDED
#define CATCH_RANDOM_SEED_GENERATION_HPP_INCLUDED

#include <cstdint>

namespace Catch {

    enum class GenerateFrom {
        Time,
        RandomDevice,
        //! Currently equivalent to RandomDevice, but can change at any point
        Default
    };

    std::uint32_t generateRandomSeed(GenerateFrom from);

} // end namespace Catch

#endif // CATCH_RANDOM_SEED_GENERATION_HPP_INCLUDED


#ifndef CATCH_REPORTER_SPEC_PARSER_HPP_INCLUDED
#define CATCH_REPORTER_SPEC_PARSER_HPP_INCLUDED



#ifndef CATCH_CONSOLE_COLOUR_HPP_INCLUDED
#define CATCH_CONSOLE_COLOUR_HPP_INCLUDED


#include <iosfwd>
#include <cstdint>

namespace Catch {

    enum class ColourMode : std::uint8_t;
    class IStream;

    struct Colour {
        enum Code {
            None = 0,

            White,
            Red,
            Green,
            Blue,
            Cyan,
            Yellow,
            Grey,

            Bright = 0x10,

            BrightRed = Bright | Red,
            BrightGreen = Bright | Green,
            LightGrey = Bright | Grey,
            BrightWhite = Bright | White,
            BrightYellow = Bright | Yellow,

            // By intention
            FileName = LightGrey,
            Warning = BrightYellow,
            ResultError = BrightRed,
            ResultSuccess = BrightGreen,
            ResultExpectedFailure = Warning,

            Error = BrightRed,
            Success = Green,
            Skip = LightGrey,

            OriginalExpression = Cyan,
            ReconstructedExpression = BrightYellow,

            SecondaryText = LightGrey,
            Headers = White
        };
    };

    class ColourImpl {
    protected:
        //! The associated stream of this ColourImpl instance
        IStream* m_stream;
    public:
        ColourImpl( IStream* stream ): m_stream( stream ) {}

        //! RAII wrapper around writing specific colour of text using specific
        //! colour impl into a stream.
        class ColourGuard {
            ColourImpl const* m_colourImpl;
            Colour::Code m_code;
            bool m_engaged = false;

        public:
            //! Does **not** engage the guard/start the colour
            ColourGuard( Colour::Code code,
                         ColourImpl const* colour );

            ColourGuard( ColourGuard const& rhs ) = delete;
            ColourGuard& operator=( ColourGuard const& rhs ) = delete;

            ColourGuard( ColourGuard&& rhs ) noexcept;
            ColourGuard& operator=( ColourGuard&& rhs ) noexcept;

            //! Removes colour _if_ the guard was engaged
            ~ColourGuard();

            /**
             * Explicitly engages colour for given stream.
             *
             * The API based on operator<< should be preferred.
             */
            ColourGuard& engage( std::ostream& stream ) &;
            /**
             * Explicitly engages colour for given stream.
             *
             * The API based on operator<< should be preferred.
             */
            ColourGuard&& engage( std::ostream& stream ) &&;

        private:
            //! Engages the guard and starts using colour
            friend std::ostream& operator<<( std::ostream& lhs,
                                             ColourGuard& guard ) {
                guard.engageImpl( lhs );
                return lhs;
            }
            //! Engages the guard and starts using colour
            friend std::ostream& operator<<( std::ostream& lhs,
                                            ColourGuard&& guard) {
                guard.engageImpl( lhs );
                return lhs;
            }

            void engageImpl( std::ostream& stream );

        };

        virtual ~ColourImpl(); // = default
        /**
         * Creates a guard object for given colour and this colour impl
         *
         * **Important:**
         * the guard starts disengaged, and has to be engaged explicitly.
         */
        ColourGuard guardColour( Colour::Code colourCode );

    private:
        virtual void use( Colour::Code colourCode ) const = 0;
    };

    //! Provides ColourImpl based on global config and target compilation platform
    Detail::unique_ptr<ColourImpl> makeColourImpl( ColourMode colourSelection,
                                                   IStream* stream );

    //! Checks if specific colour impl has been compiled into the binary
    bool isColourImplAvailable( ColourMode colourSelection );

} // end namespace Catch

#endif // CATCH_CONSOLE_COLOUR_HPP_INCLUDED

#include <map>
#include <string>
#include <vector>

namespace Catch {

    enum class ColourMode : std::uint8_t;

    namespace Detail {
        //! Splits the reporter spec into reporter name and kv-pair options
        std::vector<std::string> splitReporterSpec( StringRef reporterSpec );

        Optional<ColourMode> stringToColourMode( StringRef colourMode );
    }

    /**
     * Structured reporter spec that a reporter can be created from
     *
     * Parsing has been validated, but semantics have not. This means e.g.
     * that the colour mode is known to Catch2, but it might not be
     * compiled into the binary, and the output filename might not be
     * openable.
     */
    class ReporterSpec {
        std::string m_name;
        Optional<std::string> m_outputFileName;
        Optional<ColourMode> m_colourMode;
        std::map<std::string, std::string> m_customOptions;

        friend bool operator==( ReporterSpec const& lhs,
                                ReporterSpec const& rhs );
        friend bool operator!=( ReporterSpec const& lhs,
                                ReporterSpec const& rhs ) {
            return !( lhs == rhs );
        }

    public:
        ReporterSpec(
            std::string name,
            Optional<std::string> outputFileName,
            Optional<ColourMode> colourMode,
            std::map<std::string, std::string> customOptions );

        std::string const& name() const { return m_name; }

        Optional<std::string> const& outputFile() const {
            return m_outputFileName;
        }

        Optional<ColourMode> const& colourMode() const { return m_colourMode; }

        std::map<std::string, std::string> const& customOptions() const {
            return m_customOptions;
        }
    };

    /**
     * Parses provided reporter spec string into
     *
     * Returns empty optional on errors, e.g.
     *  * field that is not first and not a key+value pair
     *  * duplicated keys in kv pair
     *  * unknown catch reporter option
     *  * empty key/value in an custom kv pair
     *  * ...
     */
    Optional<ReporterSpec> parseReporterSpec( StringRef reporterSpec );

}

#endif // CATCH_REPORTER_SPEC_PARSER_HPP_INCLUDED

#include <chrono>
#include <map>
#include <string>
#include <vector>

namespace Catch {

    class IStream;

    /**
     * `ReporterSpec` but with the defaults filled in.
     *
     * Like `ReporterSpec`, the semantics are unchecked.
     */
    struct ProcessedReporterSpec {
        std::string name;
        std::string outputFilename;
        ColourMode colourMode;
        std::map<std::string, std::string> customOptions;
        friend bool operator==( ProcessedReporterSpec const& lhs,
                                ProcessedReporterSpec const& rhs );
        friend bool operator!=( ProcessedReporterSpec const& lhs,
                                ProcessedReporterSpec const& rhs ) {
            return !( lhs == rhs );
        }
    };

    struct ConfigData {

        bool listTests = false;
        bool listTags = false;
        bool listReporters = false;
        bool listListeners = false;

        bool showSuccessfulTests = false;
        bool shouldDebugBreak = false;
        bool noThrow = false;
        bool showHelp = false;
        bool showInvisibles = false;
        bool filenamesAsTags = false;
        bool libIdentify = false;
        bool allowZeroTests = false;

        int abortAfter = -1;
        uint32_t rngSeed = generateRandomSeed(GenerateFrom::Default);

        unsigned int shardCount = 1;
        unsigned int shardIndex = 0;

        bool skipBenchmarks = false;
        bool benchmarkNoAnalysis = false;
        unsigned int benchmarkSamples = 100;
        double benchmarkConfidenceInterval = 0.95;
        unsigned int benchmarkResamples = 100000;
        std::chrono::milliseconds::rep benchmarkWarmupTime = 100;

        Verbosity verbosity = Verbosity::Normal;
        WarnAbout::What warnings = WarnAbout::Nothing;
        ShowDurations showDurations = ShowDurations::DefaultForReporter;
        double minDuration = -1;
        TestRunOrder runOrder = TestRunOrder::Declared;
        ColourMode defaultColourMode = ColourMode::PlatformDefault;
        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;

        std::string defaultOutputFilename;
        std::string name;
        std::string processName;
        std::vector<ReporterSpec> reporterSpecifications;

        std::vector<std::string> testsOrTags;
        std::vector<std::string> sectionsToRun;
    };


    class Config : public IConfig {
    public:

        Config() = default;
        Config( ConfigData const& data );
        ~Config() override; // = default in the cpp file

        bool listTests() const;
        bool listTags() const;
        bool listReporters() const;
        bool listListeners() const;

        std::vector<ReporterSpec> const& getReporterSpecs() const;
        std::vector<ProcessedReporterSpec> const&
        getProcessedReporterSpecs() const;

        std::vector<std::string> const& getTestsOrTags() const override;
        std::vector<std::string> const& getSectionsToRun() const override;

        TestSpec const& testSpec() const override;
        bool hasTestFilters() const override;

        bool showHelp() const;

        // IConfig interface
        bool allowThrows() const override;
        StringRef name() const override;
        bool includeSuccessfulResults() const override;
        bool warnAboutMissingAssertions() const override;
        bool warnAboutUnmatchedTestSpecs() const override;
        bool zeroTestsCountAsSuccess() const override;
        ShowDurations showDurations() const override;
        double minDuration() const override;
        TestRunOrder runOrder() const override;
        uint32_t rngSeed() const override;
        unsigned int shardCount() const override;
        unsigned int shardIndex() const override;
        ColourMode defaultColourMode() const override;
        bool shouldDebugBreak() const override;
        int abortAfter() const override;
        bool showInvisibles() const override;
        Verbosity verbosity() const override;
        bool skipBenchmarks() const override;
        bool benchmarkNoAnalysis() const override;
        unsigned int benchmarkSamples() const override;
        double benchmarkConfidenceInterval() const override;
        unsigned int benchmarkResamples() const override;
        std::chrono::milliseconds benchmarkWarmupTime() const override;

    private:
        // Reads Bazel env vars and applies them to the config
        void readBazelEnvVars();

        ConfigData m_data;
        std::vector<ProcessedReporterSpec> m_processedReporterSpecs;
        TestSpec m_testSpec;
        bool m_hasTestFilters = false;
    };
} // end namespace Catch

#endif // CATCH_CONFIG_HPP_INCLUDED


#ifndef CATCH_GET_RANDOM_SEED_HPP_INCLUDED
#define CATCH_GET_RANDOM_SEED_HPP_INCLUDED

#include <cstdint>

namespace Catch {
    //! Returns Catch2's current RNG seed.
    std::uint32_t getSeed();
}

#endif // CATCH_GET_RANDOM_SEED_HPP_INCLUDED


#ifndef CATCH_MESSAGE_HPP_INCLUDED
#define CATCH_MESSAGE_HPP_INCLUDED



#ifndef CATCH_STREAM_END_STOP_HPP_INCLUDED
#define CATCH_STREAM_END_STOP_HPP_INCLUDED


namespace Catch {

    // Use this in variadic streaming macros to allow
    //    << +StreamEndStop
    // as well as
    //    << stuff +StreamEndStop
    struct StreamEndStop {
        constexpr StringRef operator+() const { return StringRef(); }

        template <typename T>
        constexpr friend T const& operator+( T const& value, StreamEndStop ) {
            return value;
        }
    };

} // namespace Catch

#endif // CATCH_STREAM_END_STOP_HPP_INCLUDED


#ifndef CATCH_MESSAGE_INFO_HPP_INCLUDED
#define CATCH_MESSAGE_INFO_HPP_INCLUDED


#include <string>

namespace Catch {

    struct MessageInfo {
        MessageInfo(    StringRef _macroName,
                        SourceLineInfo const& _lineInfo,
                        ResultWas::OfType _type );

        StringRef macroName;
        std::string message;
        SourceLineInfo lineInfo;
        ResultWas::OfType type;
        unsigned int sequence;

        bool operator == (MessageInfo const& other) const {
            return sequence == other.sequence;
        }
        bool operator < (MessageInfo const& other) const {
            return sequence < other.sequence;
        }
    private:
        static unsigned int globalCount;
    };

} // end namespace Catch

#endif // CATCH_MESSAGE_INFO_HPP_INCLUDED

#include <string>
#include <vector>

namespace Catch {

    struct SourceLineInfo;
    class IResultCapture;

    struct MessageStream {

        template<typename T>
        MessageStream& operator << ( T const& value ) {
            m_stream << value;
            return *this;
        }

        ReusableStringStream m_stream;
    };

    struct MessageBuilder : MessageStream {
        MessageBuilder( StringRef macroName,
                        SourceLineInfo const& lineInfo,
                        ResultWas::OfType type ):
            m_info(macroName, lineInfo, type) {}

        template<typename T>
        MessageBuilder&& operator << ( T const& value ) && {
            m_stream << value;
            return CATCH_MOVE(*this);
        }

        MessageInfo m_info;
    };

    class ScopedMessage {
    public:
        explicit ScopedMessage( MessageBuilder&& builder );
        ScopedMessage( ScopedMessage& duplicate ) = delete;
        ScopedMessage( ScopedMessage&& old ) noexcept;
        ~ScopedMessage();

        MessageInfo m_info;
        bool m_moved = false;
    };

    class Capturer {
        std::vector<MessageInfo> m_messages;
        IResultCapture& m_resultCapture;
        size_t m_captured = 0;
    public:
        Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names );

        Capturer(Capturer const&) = delete;
        Capturer& operator=(Capturer const&) = delete;

        ~Capturer();

        void captureValue( size_t index, std::string const& value );

        template<typename T>
        void captureValues( size_t index, T const& value ) {
            captureValue( index, Catch::Detail::stringify( value ) );
        }

        template<typename T, typename... Ts>
        void captureValues( size_t index, T const& value, Ts const&... values ) {
            captureValue( index, Catch::Detail::stringify(value) );
            captureValues( index+1, values... );
        }
    };

} // end namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), resultDisposition ); \
        catchAssertionHandler.handleMessage( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_CAPTURE( varName, macroName, ... ) \
    Catch::Capturer varName( macroName##_catch_sr,        \
                             CATCH_INTERNAL_LINEINFO,     \
                             Catch::ResultWas::Info,      \
                             #__VA_ARGS__##_catch_sr );   \
    varName.captureValues( 0, __VA_ARGS__ )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_INFO( macroName, log ) \
    const Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_UNSCOPED_INFO( macroName, log ) \
    Catch::getResultCapture().emplaceUnscopedMessage( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log )


#if defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
  #define CATCH_UNSCOPED_INFO( msg ) INTERNAL_CATCH_UNSCOPED_INFO( "CATCH_UNSCOPED_INFO", msg )
  #define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
  #define CATCH_CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CATCH_CAPTURE", __VA_ARGS__ )

#elif defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #define CATCH_INFO( msg )          (void)(0)
  #define CATCH_UNSCOPED_INFO( msg ) (void)(0)
  #define CATCH_WARN( msg )          (void)(0)
  #define CATCH_CAPTURE( ... )       (void)(0)

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
  #define UNSCOPED_INFO( msg ) INTERNAL_CATCH_UNSCOPED_INFO( "UNSCOPED_INFO", msg )
  #define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
  #define CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CAPTURE", __VA_ARGS__ )

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #define INFO( msg )          (void)(0)
  #define UNSCOPED_INFO( msg ) (void)(0)
  #define WARN( msg )          (void)(0)
  #define CAPTURE( ... )       (void)(0)

#endif // end of user facing macro declarations




#endif // CATCH_MESSAGE_HPP_INCLUDED


#ifndef CATCH_SECTION_INFO_HPP_INCLUDED
#define CATCH_SECTION_INFO_HPP_INCLUDED



#ifndef CATCH_TOTALS_HPP_INCLUDED
#define CATCH_TOTALS_HPP_INCLUDED

#include <cstdint>

namespace Catch {

    struct Counts {
        Counts operator - ( Counts const& other ) const;
        Counts& operator += ( Counts const& other );

        std::uint64_t total() const;
        bool allPassed() const;
        bool allOk() const;

        std::uint64_t passed = 0;
        std::uint64_t failed = 0;
        std::uint64_t failedButOk = 0;
        std::uint64_t skipped = 0;
    };

    struct Totals {

        Totals operator - ( Totals const& other ) const;
        Totals& operator += ( Totals const& other );

        Totals delta( Totals const& prevTotals ) const;

        Counts assertions;
        Counts testCases;
    };
}

#endif // CATCH_TOTALS_HPP_INCLUDED

#include <string>

namespace Catch {

    struct SectionInfo {
        // The last argument is ignored, so that people can write
        // SECTION("ShortName", "Proper description that is long") and
        // still use the `-c` flag comfortably.
        SectionInfo( SourceLineInfo const& _lineInfo, std::string _name,
                    const char* const = nullptr ):
            name(CATCH_MOVE(_name)),
            lineInfo(_lineInfo)
            {}

        std::string name;
        SourceLineInfo lineInfo;
    };

    struct SectionEndInfo {
        SectionInfo sectionInfo;
        Counts prevAssertions;
        double durationInSeconds;
    };

} // end namespace Catch

#endif // CATCH_SECTION_INFO_HPP_INCLUDED


#ifndef CATCH_SESSION_HPP_INCLUDED
#define CATCH_SESSION_HPP_INCLUDED



#ifndef CATCH_COMMANDLINE_HPP_INCLUDED
#define CATCH_COMMANDLINE_HPP_INCLUDED



#ifndef CATCH_CLARA_HPP_INCLUDED
#define CATCH_CLARA_HPP_INCLUDED

#if defined( __clang__ )
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wweak-vtables"
#    pragma clang diagnostic ignored "-Wshadow"
#    pragma clang diagnostic ignored "-Wdeprecated"
#endif

#if defined( __GNUC__ )
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wsign-conversion"
#endif

#ifndef CLARA_CONFIG_OPTIONAL_TYPE
#    ifdef __has_include
#        if __has_include( <optional>) && __cplusplus >= 201703L
#            include <optional>
#            define CLARA_CONFIG_OPTIONAL_TYPE std::optional
#        endif
#    endif
#endif


#include <cassert>
#include <memory>
#include <ostream>
#include <sstream>
#include <string>
#include <type_traits>
#include <vector>

namespace Catch {
    namespace Clara {

        class Args;
        class Parser;

        // enum of result types from a parse
        enum class ParseResultType {
            Matched,
            NoMatch,
            ShortCircuitAll,
            ShortCircuitSame
        };

        struct accept_many_t {};
        constexpr accept_many_t accept_many {};

        namespace Detail {
            struct fake_arg {
                template <typename T>
                operator T();
            };

            template <typename F, typename = void>
            struct is_unary_function : std::false_type {};

            template <typename F>
            struct is_unary_function<
                F,
                Catch::Detail::void_t<decltype(
                    std::declval<F>()( fake_arg() ) )
                >
            > : std::true_type {};

            // Traits for extracting arg and return type of lambdas (for single
            // argument lambdas)
            template <typename L>
            struct UnaryLambdaTraits
                : UnaryLambdaTraits<decltype( &L::operator() )> {};

            template <typename ClassT, typename ReturnT, typename... Args>
            struct UnaryLambdaTraits<ReturnT ( ClassT::* )( Args... ) const> {
                static const bool isValid = false;
            };

            template <typename ClassT, typename ReturnT, typename ArgT>
            struct UnaryLambdaTraits<ReturnT ( ClassT::* )( ArgT ) const> {
                static const bool isValid = true;
                using ArgType = std::remove_const_t<std::remove_reference_t<ArgT>>;
                using ReturnType = ReturnT;
            };

            class TokenStream;

            // Wraps a token coming from a token stream. These may not directly
            // correspond to strings as a single string may encode an option +
            // its argument if the : or = form is used
            enum class TokenType { Option, Argument };
            struct Token {
                TokenType type;
                std::string token;
            };

            // Abstracts iterators into args as a stream of tokens, with option
            // arguments uniformly handled
            class TokenStream {
                using Iterator = std::vector<std::string>::const_iterator;
                Iterator it;
                Iterator itEnd;
                std::vector<Token> m_tokenBuffer;

                void loadBuffer();

            public:
                explicit TokenStream( Args const& args );
                TokenStream( Iterator it, Iterator itEnd );

                explicit operator bool() const {
                    return !m_tokenBuffer.empty() || it != itEnd;
                }

                size_t count() const {
                    return m_tokenBuffer.size() + ( itEnd - it );
                }

                Token operator*() const {
                    assert( !m_tokenBuffer.empty() );
                    return m_tokenBuffer.front();
                }

                Token const* operator->() const {
                    assert( !m_tokenBuffer.empty() );
                    return &m_tokenBuffer.front();
                }

                TokenStream& operator++();
            };

            //! Denotes type of a parsing result
            enum class ResultType {
                Ok,          ///< No errors
                LogicError,  ///< Error in user-specified arguments for
                             ///< construction
                RuntimeError ///< Error in parsing inputs
            };

            class ResultBase {
            protected:
                ResultBase( ResultType type ): m_type( type ) {}
                virtual ~ResultBase(); // = default;


                ResultBase(ResultBase const&) = default;
                ResultBase& operator=(ResultBase const&) = default;
                ResultBase(ResultBase&&) = default;
                ResultBase& operator=(ResultBase&&) = default;

                virtual void enforceOk() const = 0;

                ResultType m_type;
            };

            template <typename T> class ResultValueBase : public ResultBase {
            public:
                auto value() const -> T const& {
                    enforceOk();
                    return m_value;
                }

            protected:
                ResultValueBase( ResultType type ): ResultBase( type ) {}

                ResultValueBase( ResultValueBase const& other ):
                    ResultBase( other ) {
                    if ( m_type == ResultType::Ok )
                        new ( &m_value ) T( other.m_value );
                }

                ResultValueBase( ResultType, T const& value ): ResultBase( ResultType::Ok ) {
                    new ( &m_value ) T( value );
                }

                auto operator=( ResultValueBase const& other )
                    -> ResultValueBase& {
                    if ( m_type == ResultType::Ok )
                        m_value.~T();
                    ResultBase::operator=( other );
                    if ( m_type == ResultType::Ok )
                        new ( &m_value ) T( other.m_value );
                    return *this;
                }

                ~ResultValueBase() override {
                    if ( m_type == ResultType::Ok )
                        m_value.~T();
                }

                union {
                    T m_value;
                };
            };

            template <> class ResultValueBase<void> : public ResultBase {
            protected:
                using ResultBase::ResultBase;
            };

            template <typename T = void>
            class BasicResult : public ResultValueBase<T> {
            public:
                template <typename U>
                explicit BasicResult( BasicResult<U> const& other ):
                    ResultValueBase<T>( other.type() ),
                    m_errorMessage( other.errorMessage() ) {
                    assert( type() != ResultType::Ok );
                }

                template <typename U>
                static auto ok( U const& value ) -> BasicResult {
                    return { ResultType::Ok, value };
                }
                static auto ok() -> BasicResult { return { ResultType::Ok }; }
                static auto logicError( std::string&& message )
                    -> BasicResult {
                    return { ResultType::LogicError, CATCH_MOVE(message) };
                }
                static auto runtimeError( std::string&& message )
                    -> BasicResult {
                    return { ResultType::RuntimeError, CATCH_MOVE(message) };
                }

                explicit operator bool() const {
                    return m_type == ResultType::Ok;
                }
                auto type() const -> ResultType { return m_type; }
                auto errorMessage() const -> std::string const& {
                    return m_errorMessage;
                }

            protected:
                void enforceOk() const override {

                    // Errors shouldn't reach this point, but if they do
                    // the actual error message will be in m_errorMessage
                    assert( m_type != ResultType::LogicError );
                    assert( m_type != ResultType::RuntimeError );
                    if ( m_type != ResultType::Ok )
                        std::abort();
                }

                std::string
                    m_errorMessage; // Only populated if resultType is an error

                BasicResult( ResultType type,
                             std::string&& message ):
                    ResultValueBase<T>( type ), m_errorMessage( CATCH_MOVE(message) ) {
                    assert( m_type != ResultType::Ok );
                }

                using ResultValueBase<T>::ResultValueBase;
                using ResultBase::m_type;
            };

            class ParseState {
            public:
                ParseState( ParseResultType type,
                            TokenStream const& remainingTokens );

                ParseResultType type() const { return m_type; }
                TokenStream const& remainingTokens() const {
                    return m_remainingTokens;
                }

            private:
                ParseResultType m_type;
                TokenStream m_remainingTokens;
            };

            using Result = BasicResult<void>;
            using ParserResult = BasicResult<ParseResultType>;
            using InternalParseResult = BasicResult<ParseState>;

            struct HelpColumns {
                std::string left;
                std::string right;
            };

            template <typename T>
            ParserResult convertInto( std::string const& source, T& target ) {
                std::stringstream ss( source );
                ss >> target;
                if ( ss.fail() ) {
                    return ParserResult::runtimeError(
                        "Unable to convert '" + source +
                        "' to destination type" );
                } else {
                    return ParserResult::ok( ParseResultType::Matched );
                }
            }
            ParserResult convertInto( std::string const& source,
                                      std::string& target );
            ParserResult convertInto( std::string const& source, bool& target );

#ifdef CLARA_CONFIG_OPTIONAL_TYPE
            template <typename T>
            auto convertInto( std::string const& source,
                              CLARA_CONFIG_OPTIONAL_TYPE<T>& target )
                -> ParserResult {
                T temp;
                auto result = convertInto( source, temp );
                if ( result )
                    target = CATCH_MOVE( temp );
                return result;
            }
#endif // CLARA_CONFIG_OPTIONAL_TYPE

            struct BoundRef : Catch::Detail::NonCopyable {
                virtual ~BoundRef() = default;
                virtual bool isContainer() const;
                virtual bool isFlag() const;
            };
            struct BoundValueRefBase : BoundRef {
                virtual auto setValue( std::string const& arg )
                    -> ParserResult = 0;
            };
            struct BoundFlagRefBase : BoundRef {
                virtual auto setFlag( bool flag ) -> ParserResult = 0;
                bool isFlag() const override;
            };

            template <typename T> struct BoundValueRef : BoundValueRefBase {
                T& m_ref;

                explicit BoundValueRef( T& ref ): m_ref( ref ) {}

                ParserResult setValue( std::string const& arg ) override {
                    return convertInto( arg, m_ref );
                }
            };

            template <typename T>
            struct BoundValueRef<std::vector<T>> : BoundValueRefBase {
                std::vector<T>& m_ref;

                explicit BoundValueRef( std::vector<T>& ref ): m_ref( ref ) {}

                auto isContainer() const -> bool override { return true; }

                auto setValue( std::string const& arg )
                    -> ParserResult override {
                    T temp;
                    auto result = convertInto( arg, temp );
                    if ( result )
                        m_ref.push_back( temp );
                    return result;
                }
            };

            struct BoundFlagRef : BoundFlagRefBase {
                bool& m_ref;

                explicit BoundFlagRef( bool& ref ): m_ref( ref ) {}

                ParserResult setFlag( bool flag ) override;
            };

            template <typename ReturnType> struct LambdaInvoker {
                static_assert(
                    std::is_same<ReturnType, ParserResult>::value,
                    "Lambda must return void or clara::ParserResult" );

                template <typename L, typename ArgType>
                static auto invoke( L const& lambda, ArgType const& arg )
                    -> ParserResult {
                    return lambda( arg );
                }
            };

            template <> struct LambdaInvoker<void> {
                template <typename L, typename ArgType>
                static auto invoke( L const& lambda, ArgType const& arg )
                    -> ParserResult {
                    lambda( arg );
                    return ParserResult::ok( ParseResultType::Matched );
                }
            };

            template <typename ArgType, typename L>
            auto invokeLambda( L const& lambda, std::string const& arg )
                -> ParserResult {
                ArgType temp{};
                auto result = convertInto( arg, temp );
                return !result ? result
                               : LambdaInvoker<typename UnaryLambdaTraits<
                                     L>::ReturnType>::invoke( lambda, temp );
            }

            template <typename L> struct BoundLambda : BoundValueRefBase {
                L m_lambda;

                static_assert(
                    UnaryLambdaTraits<L>::isValid,
                    "Supplied lambda must take exactly one argument" );
                explicit BoundLambda( L const& lambda ): m_lambda( lambda ) {}

                auto setValue( std::string const& arg )
                    -> ParserResult override {
                    return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>(
                        m_lambda, arg );
                }
            };

            template <typename L> struct BoundManyLambda : BoundLambda<L> {
                explicit BoundManyLambda( L const& lambda ): BoundLambda<L>( lambda ) {}
                bool isContainer() const override { return true; }
            };

            template <typename L> struct BoundFlagLambda : BoundFlagRefBase {
                L m_lambda;

                static_assert(
                    UnaryLambdaTraits<L>::isValid,
                    "Supplied lambda must take exactly one argument" );
                static_assert(
                    std::is_same<typename UnaryLambdaTraits<L>::ArgType,
                                 bool>::value,
                    "flags must be boolean" );

                explicit BoundFlagLambda( L const& lambda ):
                    m_lambda( lambda ) {}

                auto setFlag( bool flag ) -> ParserResult override {
                    return LambdaInvoker<typename UnaryLambdaTraits<
                        L>::ReturnType>::invoke( m_lambda, flag );
                }
            };

            enum class Optionality { Optional, Required };

            class ParserBase {
            public:
                virtual ~ParserBase() = default;
                virtual auto validate() const -> Result { return Result::ok(); }
                virtual auto parse( std::string const& exeName,
                                    TokenStream const& tokens ) const
                    -> InternalParseResult = 0;
                virtual size_t cardinality() const;

                InternalParseResult parse( Args const& args ) const;
            };

            template <typename DerivedT>
            class ComposableParserImpl : public ParserBase {
            public:
                template <typename T>
                auto operator|( T const& other ) const -> Parser;
            };

            // Common code and state for Args and Opts
            template <typename DerivedT>
            class ParserRefImpl : public ComposableParserImpl<DerivedT> {
            protected:
                Optionality m_optionality = Optionality::Optional;
                std::shared_ptr<BoundRef> m_ref;
                std::string m_hint;
                std::string m_description;

                explicit ParserRefImpl( std::shared_ptr<BoundRef> const& ref ):
                    m_ref( ref ) {}

            public:
                template <typename LambdaT>
                ParserRefImpl( accept_many_t,
                               LambdaT const& ref,
                               std::string const& hint ):
                    m_ref( std::make_shared<BoundManyLambda<LambdaT>>( ref ) ),
                    m_hint( hint ) {}

                template <typename T,
                          typename = typename std::enable_if_t<
                              !Detail::is_unary_function<T>::value>>
                ParserRefImpl( T& ref, std::string const& hint ):
                    m_ref( std::make_shared<BoundValueRef<T>>( ref ) ),
                    m_hint( hint ) {}

                template <typename LambdaT,
                          typename = typename std::enable_if_t<
                              Detail::is_unary_function<LambdaT>::value>>
                ParserRefImpl( LambdaT const& ref, std::string const& hint ):
                    m_ref( std::make_shared<BoundLambda<LambdaT>>( ref ) ),
                    m_hint( hint ) {}

                auto operator()( std::string const& description ) -> DerivedT& {
                    m_description = description;
                    return static_cast<DerivedT&>( *this );
                }

                auto optional() -> DerivedT& {
                    m_optionality = Optionality::Optional;
                    return static_cast<DerivedT&>( *this );
                }

                auto required() -> DerivedT& {
                    m_optionality = Optionality::Required;
                    return static_cast<DerivedT&>( *this );
                }

                auto isOptional() const -> bool {
                    return m_optionality == Optionality::Optional;
                }

                auto cardinality() const -> size_t override {
                    if ( m_ref->isContainer() )
                        return 0;
                    else
                        return 1;
                }

                std::string const& hint() const { return m_hint; }
            };

        } // namespace detail


        // A parser for arguments
        class Arg : public Detail::ParserRefImpl<Arg> {
        public:
            using ParserRefImpl::ParserRefImpl;
            using ParserBase::parse;

            Detail::InternalParseResult
                parse(std::string const&,
                      Detail::TokenStream const& tokens) const override;
        };

        // A parser for options
        class Opt : public Detail::ParserRefImpl<Opt> {
        protected:
            std::vector<std::string> m_optNames;

        public:
            template <typename LambdaT>
            explicit Opt(LambdaT const& ref) :
                ParserRefImpl(
                    std::make_shared<Detail::BoundFlagLambda<LambdaT>>(ref)) {}

            explicit Opt(bool& ref);

            template <typename LambdaT,
                      typename = typename std::enable_if_t<
                          Detail::is_unary_function<LambdaT>::value>>
            Opt( LambdaT const& ref, std::string const& hint ):
                ParserRefImpl( ref, hint ) {}

            template <typename LambdaT>
            Opt( accept_many_t, LambdaT const& ref, std::string const& hint ):
                ParserRefImpl( accept_many, ref, hint ) {}

            template <typename T,
                      typename = typename std::enable_if_t<
                          !Detail::is_unary_function<T>::value>>
            Opt( T& ref, std::string const& hint ):
                ParserRefImpl( ref, hint ) {}

            auto operator[](std::string const& optName) -> Opt& {
                m_optNames.push_back(optName);
                return *this;
            }

            std::vector<Detail::HelpColumns> getHelpColumns() const;

            bool isMatch(std::string const& optToken) const;

            using ParserBase::parse;

            Detail::InternalParseResult
                parse(std::string const&,
                      Detail::TokenStream const& tokens) const override;

            Detail::Result validate() const override;
        };

        // Specifies the name of the executable
        class ExeName : public Detail::ComposableParserImpl<ExeName> {
            std::shared_ptr<std::string> m_name;
            std::shared_ptr<Detail::BoundValueRefBase> m_ref;

        public:
            ExeName();
            explicit ExeName(std::string& ref);

            template <typename LambdaT>
            explicit ExeName(LambdaT const& lambda) : ExeName() {
                m_ref = std::make_shared<Detail::BoundLambda<LambdaT>>(lambda);
            }

            // The exe name is not parsed out of the normal tokens, but is
            // handled specially
            Detail::InternalParseResult
                parse(std::string const&,
                      Detail::TokenStream const& tokens) const override;

            std::string const& name() const { return *m_name; }
            Detail::ParserResult set(std::string const& newName);
        };


        // A Combined parser
        class Parser : Detail::ParserBase {
            mutable ExeName m_exeName;
            std::vector<Opt> m_options;
            std::vector<Arg> m_args;

        public:

            auto operator|=(ExeName const& exeName) -> Parser& {
                m_exeName = exeName;
                return *this;
            }

            auto operator|=(Arg const& arg) -> Parser& {
                m_args.push_back(arg);
                return *this;
            }

            auto operator|=(Opt const& opt) -> Parser& {
                m_options.push_back(opt);
                return *this;
            }

            Parser& operator|=(Parser const& other);

            template <typename T>
            auto operator|(T const& other) const -> Parser {
                return Parser(*this) |= other;
            }

            std::vector<Detail::HelpColumns> getHelpColumns() const;

            void writeToStream(std::ostream& os) const;

            friend auto operator<<(std::ostream& os, Parser const& parser)
                -> std::ostream& {
                parser.writeToStream(os);
                return os;
            }

            Detail::Result validate() const override;

            using ParserBase::parse;
            Detail::InternalParseResult
                parse(std::string const& exeName,
                      Detail::TokenStream const& tokens) const override;
        };

        // Transport for raw args (copied from main args, or supplied via
        // init list for testing)
        class Args {
            friend Detail::TokenStream;
            std::string m_exeName;
            std::vector<std::string> m_args;

        public:
            Args(int argc, char const* const* argv);
            Args(std::initializer_list<std::string> args);

            std::string const& exeName() const { return m_exeName; }
        };


        // Convenience wrapper for option parser that specifies the help option
        struct Help : Opt {
            Help(bool& showHelpFlag);
        };

        // Result type for parser operation
        using Detail::ParserResult;

        namespace Detail {
            template <typename DerivedT>
            template <typename T>
            Parser
                ComposableParserImpl<DerivedT>::operator|(T const& other) const {
                return Parser() | static_cast<DerivedT const&>(*this) | other;
            }
        }

    } // namespace Clara
} // namespace Catch

#if defined( __clang__ )
#    pragma clang diagnostic pop
#endif

#if defined( __GNUC__ )
#    pragma GCC diagnostic pop
#endif

#endif // CATCH_CLARA_HPP_INCLUDED

namespace Catch {

    struct ConfigData;

    Clara::Parser makeCommandLineParser( ConfigData& config );

} // end namespace Catch

#endif // CATCH_COMMANDLINE_HPP_INCLUDED

namespace Catch {

    class Session : Detail::NonCopyable {
    public:

        Session();
        ~Session();

        void showHelp() const;
        void libIdentify();

        int applyCommandLine( int argc, char const * const * argv );
    #if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
        int applyCommandLine( int argc, wchar_t const * const * argv );
    #endif

        void useConfigData( ConfigData const& configData );

        template<typename CharT>
        int run(int argc, CharT const * const argv[]) {
            if (m_startupExceptions)
                return 1;
            int returnCode = applyCommandLine(argc, argv);
            if (returnCode == 0)
                returnCode = run();
            return returnCode;
        }

        int run();

        Clara::Parser const& cli() const;
        void cli( Clara::Parser const& newParser );
        ConfigData& configData();
        Config& config();
    private:
        int runInternal();

        Clara::Parser m_cli;
        ConfigData m_configData;
        Detail::unique_ptr<Config> m_config;
        bool m_startupExceptions = false;
    };

} // end namespace Catch

#endif // CATCH_SESSION_HPP_INCLUDED


#ifndef CATCH_TAG_ALIAS_HPP_INCLUDED
#define CATCH_TAG_ALIAS_HPP_INCLUDED


#include <string>

namespace Catch {

    struct TagAlias {
        TagAlias(std::string const& _tag, SourceLineInfo _lineInfo):
            tag(_tag),
            lineInfo(_lineInfo)
        {}

        std::string tag;
        SourceLineInfo lineInfo;
    };

} // end namespace Catch

#endif // CATCH_TAG_ALIAS_HPP_INCLUDED


#ifndef CATCH_TAG_ALIAS_AUTOREGISTRAR_HPP_INCLUDED
#define CATCH_TAG_ALIAS_AUTOREGISTRAR_HPP_INCLUDED


namespace Catch {

    struct RegistrarForTagAliases {
        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
    };

} // end namespace Catch

#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
    namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); } \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#endif // CATCH_TAG_ALIAS_AUTOREGISTRAR_HPP_INCLUDED


#ifndef CATCH_TEMPLATE_TEST_MACROS_HPP_INCLUDED
#define CATCH_TEMPLATE_TEST_MACROS_HPP_INCLUDED

// We need this suppression to leak, because it took until GCC 10
// for the front end to handle local suppression via _Pragma properly
// inside templates (so `TEMPLATE_TEST_CASE` and co).
// **THIS IS DIFFERENT FOR STANDARD TESTS, WHERE GCC 9 IS SUFFICIENT**
#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && __GNUC__ < 10
#pragma GCC diagnostic ignored "-Wparentheses"
#endif




#ifndef CATCH_TEST_MACROS_HPP_INCLUDED
#define CATCH_TEST_MACROS_HPP_INCLUDED



#ifndef CATCH_TEST_MACRO_IMPL_HPP_INCLUDED
#define CATCH_TEST_MACRO_IMPL_HPP_INCLUDED



#ifndef CATCH_ASSERTION_HANDLER_HPP_INCLUDED
#define CATCH_ASSERTION_HANDLER_HPP_INCLUDED



#ifndef CATCH_DECOMPOSER_HPP_INCLUDED
#define CATCH_DECOMPOSER_HPP_INCLUDED



#ifndef CATCH_COMPARE_TRAITS_HPP_INCLUDED
#define CATCH_COMPARE_TRAITS_HPP_INCLUDED


#include <type_traits>

namespace Catch {
    namespace Detail {

#if defined( __GNUC__ ) && !defined( __clang__ )
#    pragma GCC diagnostic push
    // GCC likes to complain about comparing bool with 0, in the decltype()
    // that defines the comparable traits below.
#    pragma GCC diagnostic ignored "-Wbool-compare"
    // "ordered comparison of pointer with integer zero" same as above,
    // but it does not have a separate warning flag to suppress
#    pragma GCC diagnostic ignored "-Wextra"
    // Did you know that comparing floats with `0` directly
    // is super-duper dangerous in unevaluated context?
#    pragma GCC diagnostic ignored "-Wfloat-equal"
#endif

#if defined( __clang__ )
#    pragma clang diagnostic push
    // Did you know that comparing floats with `0` directly
    // is super-duper dangerous in unevaluated context?
#    pragma clang diagnostic ignored "-Wfloat-equal"
#endif

#define CATCH_DEFINE_COMPARABLE_TRAIT( id, op )                               \
    template <typename, typename, typename = void>                            \
    struct is_##id##_comparable : std::false_type {};                         \
    template <typename T, typename U>                                         \
    struct is_##id##_comparable<                                              \
        T,                                                                    \
        U,                                                                    \
        void_t<decltype( std::declval<T>() op std::declval<U>() )>>           \
        : std::true_type {};                                                  \
    template <typename, typename = void>                                      \
    struct is_##id##_0_comparable : std::false_type {};                       \
    template <typename T>                                                     \
    struct is_##id##_0_comparable<T,                                          \
                                  void_t<decltype( std::declval<T>() op 0 )>> \
        : std::true_type {};

        // We need all 6 pre-spaceship comparison ops: <, <=, >, >=, ==, !=
        CATCH_DEFINE_COMPARABLE_TRAIT( lt, < )
        CATCH_DEFINE_COMPARABLE_TRAIT( le, <= )
        CATCH_DEFINE_COMPARABLE_TRAIT( gt, > )
        CATCH_DEFINE_COMPARABLE_TRAIT( ge, >= )
        CATCH_DEFINE_COMPARABLE_TRAIT( eq, == )
        CATCH_DEFINE_COMPARABLE_TRAIT( ne, != )

#undef CATCH_DEFINE_COMPARABLE_TRAIT

#if defined( __GNUC__ ) && !defined( __clang__ )
#    pragma GCC diagnostic pop
#endif
#if defined( __clang__ )
#    pragma clang diagnostic pop
#endif


    } // namespace Detail
} // namespace Catch

#endif // CATCH_COMPARE_TRAITS_HPP_INCLUDED


#ifndef CATCH_LOGICAL_TRAITS_HPP_INCLUDED
#define CATCH_LOGICAL_TRAITS_HPP_INCLUDED

#include <type_traits>

namespace Catch {
namespace Detail {

#if defined( __cpp_lib_logical_traits ) && __cpp_lib_logical_traits >= 201510

    using std::conjunction;
    using std::disjunction;
    using std::negation;

#else

    template <class...> struct conjunction : std::true_type {};
    template <class B1> struct conjunction<B1> : B1 {};
    template <class B1, class... Bn>
    struct conjunction<B1, Bn...>
        : std::conditional_t<bool( B1::value ), conjunction<Bn...>, B1> {};

    template <class...> struct disjunction : std::false_type {};
    template <class B1> struct disjunction<B1> : B1 {};
    template <class B1, class... Bn>
    struct disjunction<B1, Bn...>
        : std::conditional_t<bool( B1::value ), B1, disjunction<Bn...>> {};

    template <class B>
    struct negation : std::integral_constant<bool, !bool(B::value)> {};

#endif

} // namespace Detail
} // namespace Catch

#endif // CATCH_LOGICAL_TRAITS_HPP_INCLUDED

#include <type_traits>
#include <iosfwd>

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
#pragma warning(disable:4018) // more "signed/unsigned mismatch"
#pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
#pragma warning(disable:4180) // qualifier applied to function type has no meaning
#pragma warning(disable:4800) // Forcing result to true or false
#endif

#ifdef __clang__
#  pragma clang diagnostic push
#  pragma clang diagnostic ignored "-Wsign-compare"
#elif defined __GNUC__
#  pragma GCC diagnostic push
#  pragma GCC diagnostic ignored "-Wsign-compare"
#endif

namespace Catch {

    template <typename T>
    struct always_false : std::false_type {};

    class ITransientExpression {
        bool m_isBinaryExpression;
        bool m_result;

    public:
        auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
        auto getResult() const -> bool { return m_result; }
        virtual void streamReconstructedExpression( std::ostream &os ) const = 0;

        ITransientExpression( bool isBinaryExpression, bool result )
        :   m_isBinaryExpression( isBinaryExpression ),
            m_result( result )
        {}

        ITransientExpression() = default;
        ITransientExpression(ITransientExpression const&) = default;
        ITransientExpression& operator=(ITransientExpression const&) = default;

        // We don't actually need a virtual destructor, but many static analysers
        // complain if it's not here :-(
        virtual ~ITransientExpression(); // = default;

        friend std::ostream& operator<<(std::ostream& out, ITransientExpression const& expr) {
            expr.streamReconstructedExpression(out);
            return out;
        }
    };

    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );

    template<typename LhsT, typename RhsT>
    class BinaryExpr  : public ITransientExpression {
        LhsT m_lhs;
        StringRef m_op;
        RhsT m_rhs;

        void streamReconstructedExpression( std::ostream &os ) const override {
            formatReconstructedExpression
                    ( os, Catch::Detail::stringify( m_lhs ), m_op, Catch::Detail::stringify( m_rhs ) );
        }

    public:
        BinaryExpr( bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs )
        :   ITransientExpression{ true, comparisonResult },
            m_lhs( lhs ),
            m_op( op ),
            m_rhs( rhs )
        {}

        template<typename T>
        auto operator && ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator || ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator == ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator != ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator > ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator < ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator >= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename T>
        auto operator <= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
            static_assert(always_false<T>::value,
            "chained comparisons are not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }
    };

    template<typename LhsT>
    class UnaryExpr : public ITransientExpression {
        LhsT m_lhs;

        void streamReconstructedExpression( std::ostream &os ) const override {
            os << Catch::Detail::stringify( m_lhs );
        }

    public:
        explicit UnaryExpr( LhsT lhs )
        :   ITransientExpression{ false, static_cast<bool>(lhs) },
            m_lhs( lhs )
        {}
    };


    template<typename LhsT>
    class ExprLhs {
        LhsT m_lhs;
    public:
        explicit ExprLhs( LhsT lhs ) : m_lhs( lhs ) {}

#define CATCH_INTERNAL_DEFINE_EXPRESSION_EQUALITY_OPERATOR( id, op )           \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT&& rhs )                       \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<Detail::is_##id##_comparable<LhsT, RhsT>,      \
                                Detail::negation<std::is_arithmetic<           \
                                    std::remove_reference_t<RhsT>>>>::value,   \
            BinaryExpr<LhsT, RhsT const&>> {                                   \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<Detail::is_##id##_comparable<LhsT, RhsT>,      \
                                std::is_arithmetic<RhsT>>::value,              \
            BinaryExpr<LhsT, RhsT>> {                                          \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<                                               \
                Detail::negation<Detail::is_##id##_comparable<LhsT, RhsT>>,    \
                Detail::is_eq_0_comparable<LhsT>,                              \
              /* We allow long because we want `ptr op NULL` to be accepted */ \
                Detail::disjunction<std::is_same<RhsT, int>,                   \
                                    std::is_same<RhsT, long>>>::value,         \
            BinaryExpr<LhsT, RhsT>> {                                          \
        if ( rhs != 0 ) { throw_test_failure_exception(); }                    \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op 0 ), lhs.m_lhs, #op##_sr, rhs };   \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<                                               \
                Detail::negation<Detail::is_##id##_comparable<LhsT, RhsT>>,    \
                Detail::is_eq_0_comparable<RhsT>,                              \
              /* We allow long because we want `ptr op NULL` to be accepted */ \
                Detail::disjunction<std::is_same<LhsT, int>,                   \
                                    std::is_same<LhsT, long>>>::value,         \
            BinaryExpr<LhsT, RhsT>> {                                          \
        if ( lhs.m_lhs != 0 ) { throw_test_failure_exception(); }              \
        return { static_cast<bool>( 0 op rhs ), lhs.m_lhs, #op##_sr, rhs };    \
    }

        CATCH_INTERNAL_DEFINE_EXPRESSION_EQUALITY_OPERATOR( eq, == )
        CATCH_INTERNAL_DEFINE_EXPRESSION_EQUALITY_OPERATOR( ne, != )

    #undef CATCH_INTERNAL_DEFINE_EXPRESSION_EQUALITY_OPERATOR

#define CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR( id, op )         \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT&& rhs )                       \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<Detail::is_##id##_comparable<LhsT, RhsT>,      \
                                Detail::negation<std::is_arithmetic<           \
                                    std::remove_reference_t<RhsT>>>>::value,   \
            BinaryExpr<LhsT, RhsT const&>> {                                   \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<Detail::is_##id##_comparable<LhsT, RhsT>,      \
                                std::is_arithmetic<RhsT>>::value,              \
            BinaryExpr<LhsT, RhsT>> {                                          \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<                                               \
                Detail::negation<Detail::is_##id##_comparable<LhsT, RhsT>>,    \
                Detail::is_##id##_0_comparable<LhsT>,                          \
                std::is_same<RhsT, int>>::value,                               \
            BinaryExpr<LhsT, RhsT>> {                                          \
        if ( rhs != 0 ) { throw_test_failure_exception(); }                    \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op 0 ), lhs.m_lhs, #op##_sr, rhs };   \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<                                                    \
            Detail::conjunction<                                               \
                Detail::negation<Detail::is_##id##_comparable<LhsT, RhsT>>,    \
                Detail::is_##id##_0_comparable<RhsT>,                          \
                std::is_same<LhsT, int>>::value,                               \
            BinaryExpr<LhsT, RhsT>> {                                          \
        if ( lhs.m_lhs != 0 ) { throw_test_failure_exception(); }              \
        return { static_cast<bool>( 0 op rhs ), lhs.m_lhs, #op##_sr, rhs };    \
    }

        CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR( lt, < )
        CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR( le, <= )
        CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR( gt, > )
        CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR( ge, >= )

    #undef CATCH_INTERNAL_DEFINE_EXPRESSION_COMPARISON_OPERATOR


#define CATCH_INTERNAL_DEFINE_EXPRESSION_OPERATOR( op )                        \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT&& rhs )                       \
        ->std::enable_if_t<                                                    \
            !std::is_arithmetic<std::remove_reference_t<RhsT>>::value,         \
            BinaryExpr<LhsT, RhsT const&>> {                                   \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }                                                                          \
    template <typename RhsT>                                                   \
    friend auto operator op( ExprLhs&& lhs, RhsT rhs )                         \
        ->std::enable_if_t<std::is_arithmetic<RhsT>::value,                    \
                           BinaryExpr<LhsT, RhsT>> {                           \
        return {                                                               \
            static_cast<bool>( lhs.m_lhs op rhs ), lhs.m_lhs, #op##_sr, rhs }; \
    }

        CATCH_INTERNAL_DEFINE_EXPRESSION_OPERATOR(|)
        CATCH_INTERNAL_DEFINE_EXPRESSION_OPERATOR(&)
        CATCH_INTERNAL_DEFINE_EXPRESSION_OPERATOR(^)

    #undef CATCH_INTERNAL_DEFINE_EXPRESSION_OPERATOR

        template<typename RhsT>
        friend auto operator && ( ExprLhs &&, RhsT && ) -> BinaryExpr<LhsT, RhsT const&> {
            static_assert(always_false<RhsT>::value,
            "operator&& is not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        template<typename RhsT>
        friend auto operator || ( ExprLhs &&, RhsT && ) -> BinaryExpr<LhsT, RhsT const&> {
            static_assert(always_false<RhsT>::value,
            "operator|| is not supported inside assertions, "
            "wrap the expression inside parentheses, or decompose it");
        }

        auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
            return UnaryExpr<LhsT>{ m_lhs };
        }
    };

    struct Decomposer {
        template<typename T, std::enable_if_t<!std::is_arithmetic<std::remove_reference_t<T>>::value, int> = 0>
        friend auto operator <= ( Decomposer &&, T && lhs ) -> ExprLhs<T const&> {
            return ExprLhs<const T&>{ lhs };
        }

        template<typename T, std::enable_if_t<std::is_arithmetic<T>::value, int> = 0>
        friend auto operator <= ( Decomposer &&, T value ) -> ExprLhs<T> {
            return ExprLhs<T>{ value };
        }
    };

} // end namespace Catch

#ifdef _MSC_VER
#pragma warning(pop)
#endif
#ifdef __clang__
#  pragma clang diagnostic pop
#elif defined __GNUC__
#  pragma GCC diagnostic pop
#endif

#endif // CATCH_DECOMPOSER_HPP_INCLUDED

#include <string>

namespace Catch {

    struct AssertionReaction {
        bool shouldDebugBreak = false;
        bool shouldThrow = false;
        bool shouldSkip = false;
    };

    class AssertionHandler {
        AssertionInfo m_assertionInfo;
        AssertionReaction m_reaction;
        bool m_completed = false;
        IResultCapture& m_resultCapture;

    public:
        AssertionHandler
            (   StringRef macroName,
                SourceLineInfo const& lineInfo,
                StringRef capturedExpression,
                ResultDisposition::Flags resultDisposition );
        ~AssertionHandler() {
            if ( !m_completed ) {
                m_resultCapture.handleIncomplete( m_assertionInfo );
            }
        }


        template<typename T>
        void handleExpr( ExprLhs<T> const& expr ) {
            handleExpr( expr.makeUnaryExpr() );
        }
        void handleExpr( ITransientExpression const& expr );

        void handleMessage(ResultWas::OfType resultType, StringRef message);

        void handleExceptionThrownAsExpected();
        void handleUnexpectedExceptionNotThrown();
        void handleExceptionNotThrownAsExpected();
        void handleThrowingCallSkipped();
        void handleUnexpectedInflightException();

        void complete();

        // query
        auto allowThrows() const -> bool;
    };

    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str );

} // namespace Catch

#endif // CATCH_ASSERTION_HANDLER_HPP_INCLUDED


#ifndef CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED
#define CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED


#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__##_catch_sr
#else
  #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"_catch_sr
#endif

#endif // CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED

// We need this suppression to leak, because it took until GCC 10
// for the front end to handle local suppression via _Pragma properly
#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && __GNUC__ <= 9
  #pragma GCC diagnostic ignored "-Wparentheses"
#endif

#if !defined(CATCH_CONFIG_DISABLE)

#if defined(CATCH_CONFIG_FAST_COMPILE) || defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)

///////////////////////////////////////////////////////////////////////////////
// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
// macros.
#define INTERNAL_CATCH_TRY
#define INTERNAL_CATCH_CATCH( capturer )

#else // CATCH_CONFIG_FAST_COMPILE

#define INTERNAL_CATCH_TRY try
#define INTERNAL_CATCH_CATCH( handler ) catch(...) { handler.handleUnexpectedInflightException(); }

#endif

#define INTERNAL_CATCH_REACT( handler ) handler.complete();

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
    do { /* NOLINT(bugprone-infinite-loop) */ \
        /* The expression should not be evaluated, but warnings should hopefully be checked */ \
        CATCH_INTERNAL_IGNORE_BUT_WARN(__VA_ARGS__); \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        INTERNAL_CATCH_TRY { \
            CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
            CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
            catchAssertionHandler.handleExpr( Catch::Decomposer() <= __VA_ARGS__ ); \
            CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( (void)0, (false) && static_cast<const bool&>( !!(__VA_ARGS__) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
    // The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( Catch::getResultCapture().lastAssertionPassed() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( !Catch::getResultCapture().lastAssertionPassed() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        try { \
            CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
            CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
            static_cast<void>(__VA_ARGS__); \
            CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
            catchAssertionHandler.handleExceptionNotThrownAsExpected(); \
        } \
        catch( ... ) { \
            catchAssertionHandler.handleUnexpectedInflightException(); \
        } \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
                CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT \
                CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
                static_cast<void>(__VA_ARGS__); \
                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleExceptionThrownAsExpected(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
                CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT \
                CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
                static_cast<void>(expr); \
                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( exceptionType const& ) { \
                catchAssertionHandler.handleExceptionThrownAsExpected(); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleUnexpectedInflightException(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )



///////////////////////////////////////////////////////////////////////////////
// Although this is matcher-based, it can be used with just a string
#define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
                CATCH_INTERNAL_SUPPRESS_UNUSED_RESULT \
                CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
                static_cast<void>(__VA_ARGS__); \
                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( ... ) { \
                Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher ); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

#endif // CATCH_CONFIG_DISABLE

#endif // CATCH_TEST_MACRO_IMPL_HPP_INCLUDED


#ifndef CATCH_SECTION_HPP_INCLUDED
#define CATCH_SECTION_HPP_INCLUDED




/** \file
 * Wrapper for the STATIC_ANALYSIS_SUPPORT configuration option
 *
 * Some of Catch2's macros can be defined differently to work better with
 * static analysis tools, like clang-tidy or coverity.
 * Currently the main use case is to show that `SECTION`s are executed
 * exclusively, and not all in one run of a `TEST_CASE`.
 */

#ifndef CATCH_CONFIG_STATIC_ANALYSIS_SUPPORT_HPP_INCLUDED
#define CATCH_CONFIG_STATIC_ANALYSIS_SUPPORT_HPP_INCLUDED


#if defined(__clang_analyzer__) || defined(__COVERITY__)
    #define CATCH_INTERNAL_CONFIG_STATIC_ANALYSIS_SUPPORT
#endif

#if defined( CATCH_INTERNAL_CONFIG_STATIC_ANALYSIS_SUPPORT ) && \
    !defined( CATCH_CONFIG_NO_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT ) && \
    !defined( CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT )
#    define CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT
#endif


#endif // CATCH_CONFIG_STATIC_ANALYSIS_SUPPORT_HPP_INCLUDED


#ifndef CATCH_TIMER_HPP_INCLUDED
#define CATCH_TIMER_HPP_INCLUDED

#include <cstdint>

namespace Catch {

    class Timer {
        uint64_t m_nanoseconds = 0;
    public:
        void start();
        auto getElapsedNanoseconds() const -> uint64_t;
        auto getElapsedMicroseconds() const -> uint64_t;
        auto getElapsedMilliseconds() const -> unsigned int;
        auto getElapsedSeconds() const -> double;
    };

} // namespace Catch

#endif // CATCH_TIMER_HPP_INCLUDED

namespace Catch {

    class Section : Detail::NonCopyable {
    public:
        Section( SectionInfo&& info );
        Section( SourceLineInfo const& _lineInfo,
                 StringRef _name,
                 const char* const = nullptr );
        ~Section();

        // This indicates whether the section should be executed or not
        explicit operator bool() const;

    private:
        SectionInfo m_info;

        Counts m_assertions;
        bool m_sectionIncluded;
        Timer m_timer;
    };

} // end namespace Catch

#if !defined(CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT)
#    define INTERNAL_CATCH_SECTION( ... )                                 \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                         \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS                  \
        if ( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME(            \
                 catch_internal_Section ) =                               \
                 Catch::Section( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) ) \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#    define INTERNAL_CATCH_DYNAMIC_SECTION( ... )                     \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                     \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS              \
        if ( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME(        \
                 catch_internal_Section ) =                           \
                 Catch::SectionInfo(                                  \
                     CATCH_INTERNAL_LINEINFO,                         \
                     ( Catch::ReusableStringStream() << __VA_ARGS__ ) \
                         .str() ) )                                   \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#else

// These section definitions imply that at most one section at one level
// will be intered (because only one section's __LINE__ can be equal to
// the dummy `catchInternalSectionHint` variable from `TEST_CASE`).

namespace Catch {
    namespace Detail {
        // Intentionally without linkage, as it should only be used as a dummy
        // symbol for static analysis.
        int GetNewSectionHint();
    } // namespace Detail
} // namespace Catch


#    define INTERNAL_CATCH_SECTION( ... )                                   \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                           \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS                    \
        CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS                             \
        if ( [[maybe_unused]] int catchInternalPreviousSectionHint =        \
                 catchInternalSectionHint,                                  \
             catchInternalSectionHint = Catch::Detail::GetNewSectionHint(); \
             catchInternalPreviousSectionHint == __LINE__ )                 \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#    define INTERNAL_CATCH_DYNAMIC_SECTION( ... )                           \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                           \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS                    \
        CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS                             \
        if ( [[maybe_unused]] int catchInternalPreviousSectionHint =        \
                 catchInternalSectionHint,                                  \
             catchInternalSectionHint = Catch::Detail::GetNewSectionHint(); \
             catchInternalPreviousSectionHint == __LINE__ )                 \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#endif


#endif // CATCH_SECTION_HPP_INCLUDED


#ifndef CATCH_TEST_REGISTRY_HPP_INCLUDED
#define CATCH_TEST_REGISTRY_HPP_INCLUDED



#ifndef CATCH_INTERFACES_TEST_INVOKER_HPP_INCLUDED
#define CATCH_INTERFACES_TEST_INVOKER_HPP_INCLUDED

namespace Catch {

    class ITestInvoker {
    public:
        virtual void invoke() const = 0;
        virtual ~ITestInvoker(); // = default
    };

} // namespace Catch

#endif // CATCH_INTERFACES_TEST_INVOKER_HPP_INCLUDED


#ifndef CATCH_PREPROCESSOR_REMOVE_PARENS_HPP_INCLUDED
#define CATCH_PREPROCESSOR_REMOVE_PARENS_HPP_INCLUDED

#define INTERNAL_CATCH_EXPAND1( param ) INTERNAL_CATCH_EXPAND2( param )
#define INTERNAL_CATCH_EXPAND2( ... ) INTERNAL_CATCH_NO##__VA_ARGS__
#define INTERNAL_CATCH_DEF( ... ) INTERNAL_CATCH_DEF __VA_ARGS__
#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF

#define INTERNAL_CATCH_REMOVE_PARENS( ... ) \
    INTERNAL_CATCH_EXPAND1( INTERNAL_CATCH_DEF __VA_ARGS__ )

#endif // CATCH_PREPROCESSOR_REMOVE_PARENS_HPP_INCLUDED

// GCC 5 and older do not properly handle disabling unused-variable warning
// with a _Pragma. This means that we have to leak the suppression to the
// user code as well :-(
#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ <= 5
#pragma GCC diagnostic ignored "-Wunused-variable"
#endif



namespace Catch {

template<typename C>
class TestInvokerAsMethod : public ITestInvoker {
    void (C::*m_testAsMethod)();
public:
    TestInvokerAsMethod( void (C::*testAsMethod)() ) noexcept : m_testAsMethod( testAsMethod ) {}

    void invoke() const override {
        C obj;
        (obj.*m_testAsMethod)();
    }
};

Detail::unique_ptr<ITestInvoker> makeTestInvoker( void(*testAsFunction)() );

template<typename C>
Detail::unique_ptr<ITestInvoker> makeTestInvoker( void (C::*testAsMethod)() ) {
    return Detail::make_unique<TestInvokerAsMethod<C>>( testAsMethod );
}

struct NameAndTags {
    constexpr NameAndTags( StringRef name_ = StringRef(),
                           StringRef tags_ = StringRef() ) noexcept:
        name( name_ ), tags( tags_ ) {}
    StringRef name;
    StringRef tags;
};

struct AutoReg : Detail::NonCopyable {
    AutoReg( Detail::unique_ptr<ITestInvoker> invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags ) noexcept;
};

} // end namespace Catch

#if defined(CATCH_CONFIG_DISABLE)
    #define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
        static inline void TestName()
    #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
        namespace{                        \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                void test();              \
            };                            \
        }                                 \
        void TestName::test()
#endif


#if !defined(CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT)

    ///////////////////////////////////////////////////////////////////////////////
    #define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
        static void TestName(); \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        namespace{ const Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        static void TestName()
    #define INTERNAL_CATCH_TESTCASE( ... ) \
        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), __VA_ARGS__ )

#else  // ^^ !CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT | vv CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT


// Dummy registrator for the dumy test case macros
namespace Catch {
    namespace Detail {
        struct DummyUse {
            DummyUse( void ( * )( int ) );
        };
    } // namespace Detail
} // namespace Catch

// Note that both the presence of the argument and its exact name are
// necessary for the section support.

// We provide a shadowed variable so that a `SECTION` inside non-`TEST_CASE`
// tests can compile. The redefined `TEST_CASE` shadows this with param.
static int catchInternalSectionHint = 0;

#    define INTERNAL_CATCH_TESTCASE2( fname )                              \
        static void fname( int );                                          \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                          \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                           \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS                   \
        static const Catch::Detail::DummyUse INTERNAL_CATCH_UNIQUE_NAME(   \
            dummyUser )( &fname );                                         \
        CATCH_INTERNAL_SUPPRESS_SHADOW_WARNINGS                            \
        static void fname( [[maybe_unused]] int catchInternalSectionHint ) \
            CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
#    define INTERNAL_CATCH_TESTCASE( ... ) \
        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( dummyFunction ) )


#endif // CATCH_CONFIG_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT

    ///////////////////////////////////////////////////////////////////////////////
    #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        namespace{ \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                void test(); \
            }; \
            const Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( \
            Catch::makeTestInvoker( &TestName::test ),                    \
            CATCH_INTERNAL_LINEINFO,                                      \
            #ClassName##_catch_sr,                                        \
            Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
        } \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        void TestName::test()
    #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
        INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), ClassName, __VA_ARGS__ )


    ///////////////////////////////////////////////////////////////////////////////
    #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        namespace {                                                           \
        const Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( \
            Catch::makeTestInvoker( &QualifiedMethod ),                   \
            CATCH_INTERNAL_LINEINFO,                                      \
            "&" #QualifiedMethod##_catch_sr,                              \
            Catch::NameAndTags{ __VA_ARGS__ } );                          \
    } /* NOLINT */ \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION


    ///////////////////////////////////////////////////////////////////////////////
    #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
        do { \
            CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
            CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
            CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
            CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        } while(false)


#endif // CATCH_TEST_REGISTRY_HPP_INCLUDED


// All of our user-facing macros support configuration toggle, that
// forces them to be defined prefixed with CATCH_. We also like to
// support another toggle that can minimize (disable) their implementation.
// Given this, we have 4 different configuration options below

#if defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
  #define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

  #define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
  #define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
  #define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

  #define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
  #define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
  #define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
  #define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

  #define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
  #define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

  #define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
  #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
  #define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
  #define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
  #define CATCH_DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
  #define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
  #define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CATCH_SKIP( ... ) INTERNAL_CATCH_MSG( "SKIP", Catch::ResultWas::ExplicitSkip, Catch::ResultDisposition::Normal, __VA_ARGS__ )


  #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
    #define CATCH_STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__ ,      #__VA_ARGS__ );     CATCH_SUCCEED( #__VA_ARGS__ )
    #define CATCH_STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); CATCH_SUCCEED( #__VA_ARGS__ )
    #define CATCH_STATIC_CHECK( ... )       static_assert(   __VA_ARGS__ ,      #__VA_ARGS__ );     CATCH_SUCCEED( #__VA_ARGS__ )
    #define CATCH_STATIC_CHECK_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); CATCH_SUCCEED( #__VA_ARGS__ )
  #else
    #define CATCH_STATIC_REQUIRE( ... )       CATCH_REQUIRE( __VA_ARGS__ )
    #define CATCH_STATIC_REQUIRE_FALSE( ... ) CATCH_REQUIRE_FALSE( __VA_ARGS__ )
    #define CATCH_STATIC_CHECK( ... )       CATCH_CHECK( __VA_ARGS__ )
    #define CATCH_STATIC_CHECK_FALSE( ... ) CATCH_CHECK_FALSE( __VA_ARGS__ )
  #endif


  // "BDD-style" convenience wrappers
  #define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
  #define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
  #define CATCH_GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
  #define CATCH_AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
  #define CATCH_WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
  #define CATCH_AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
  #define CATCH_THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
  #define CATCH_AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )

#elif defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE) // ^^ prefixed, implemented | vv prefixed, disabled

  #define CATCH_REQUIRE( ... )        (void)(0)
  #define CATCH_REQUIRE_FALSE( ... )  (void)(0)

  #define CATCH_REQUIRE_THROWS( ... ) (void)(0)
  #define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
  #define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)

  #define CATCH_CHECK( ... )         (void)(0)
  #define CATCH_CHECK_FALSE( ... )   (void)(0)
  #define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
  #define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
  #define CATCH_CHECK_NOFAIL( ... )  (void)(0)

  #define CATCH_CHECK_THROWS( ... )  (void)(0)
  #define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
  #define CATCH_CHECK_NOTHROW( ... ) (void)(0)

  #define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ))
  #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ))
  #define CATCH_METHOD_AS_TEST_CASE( method, ... )
  #define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
  #define CATCH_SECTION( ... )
  #define CATCH_DYNAMIC_SECTION( ... )
  #define CATCH_FAIL( ... ) (void)(0)
  #define CATCH_FAIL_CHECK( ... ) (void)(0)
  #define CATCH_SUCCEED( ... ) (void)(0)
  #define CATCH_SKIP( ... ) (void)(0)

  #define CATCH_STATIC_REQUIRE( ... )       (void)(0)
  #define CATCH_STATIC_REQUIRE_FALSE( ... ) (void)(0)
  #define CATCH_STATIC_CHECK( ... )       (void)(0)
  #define CATCH_STATIC_CHECK_FALSE( ... ) (void)(0)

  // "BDD-style" convenience wrappers
  #define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ))
  #define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), className )
  #define CATCH_GIVEN( desc )
  #define CATCH_AND_GIVEN( desc )
  #define CATCH_WHEN( desc )
  #define CATCH_AND_WHEN( desc )
  #define CATCH_THEN( desc )
  #define CATCH_AND_THEN( desc )

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE) // ^^ prefixed, disabled | vv unprefixed, implemented

  #define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
  #define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

  #define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
  #define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
  #define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

  #define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
  #define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
  #define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
  #define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

  #define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
  #define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

  #define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
  #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
  #define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
  #define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
  #define DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
  #define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
  #define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
  #define SKIP( ... ) INTERNAL_CATCH_MSG( "SKIP", Catch::ResultWas::ExplicitSkip, Catch::ResultDisposition::Normal, __VA_ARGS__ )


  #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
    #define STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__,  #__VA_ARGS__ ); SUCCEED( #__VA_ARGS__ )
    #define STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); SUCCEED( "!(" #__VA_ARGS__ ")" )
    #define STATIC_CHECK( ... )       static_assert(   __VA_ARGS__,  #__VA_ARGS__ ); SUCCEED( #__VA_ARGS__ )
    #define STATIC_CHECK_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); SUCCEED( "!(" #__VA_ARGS__ ")" )
  #else
    #define STATIC_REQUIRE( ... )       REQUIRE( __VA_ARGS__ )
    #define STATIC_REQUIRE_FALSE( ... ) REQUIRE_FALSE( __VA_ARGS__ )
    #define STATIC_CHECK( ... )       CHECK( __VA_ARGS__ )
    #define STATIC_CHECK_FALSE( ... ) CHECK_FALSE( __VA_ARGS__ )
  #endif

  // "BDD-style" convenience wrappers
  #define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
  #define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
  #define GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
  #define AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
  #define WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
  #define AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
  #define THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
  #define AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE) // ^^ unprefixed, implemented | vv unprefixed, disabled

  #define REQUIRE( ... )       (void)(0)
  #define REQUIRE_FALSE( ... ) (void)(0)

  #define REQUIRE_THROWS( ... ) (void)(0)
  #define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
  #define REQUIRE_NOTHROW( ... ) (void)(0)

  #define CHECK( ... ) (void)(0)
  #define CHECK_FALSE( ... ) (void)(0)
  #define CHECKED_IF( ... ) if (__VA_ARGS__)
  #define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
  #define CHECK_NOFAIL( ... ) (void)(0)

  #define CHECK_THROWS( ... )  (void)(0)
  #define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
  #define CHECK_NOTHROW( ... ) (void)(0)

  #define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), __VA_ARGS__)
  #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ))
  #define METHOD_AS_TEST_CASE( method, ... )
  #define REGISTER_TEST_CASE( Function, ... ) (void)(0)
  #define SECTION( ... )
  #define DYNAMIC_SECTION( ... )
  #define FAIL( ... ) (void)(0)
  #define FAIL_CHECK( ... ) (void)(0)
  #define SUCCEED( ... ) (void)(0)
  #define SKIP( ... ) (void)(0)

  #define STATIC_REQUIRE( ... )       (void)(0)
  #define STATIC_REQUIRE_FALSE( ... ) (void)(0)
  #define STATIC_CHECK( ... )       (void)(0)
  #define STATIC_CHECK_FALSE( ... ) (void)(0)

  // "BDD-style" convenience wrappers
  #define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ) )
  #define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEST_ ), className )

  #define GIVEN( desc )
  #define AND_GIVEN( desc )
  #define WHEN( desc )
  #define AND_WHEN( desc )
  #define THEN( desc )
  #define AND_THEN( desc )

#endif // ^^ unprefixed, disabled

// end of user facing macros

#endif // CATCH_TEST_MACROS_HPP_INCLUDED


#ifndef CATCH_TEMPLATE_TEST_REGISTRY_HPP_INCLUDED
#define CATCH_TEMPLATE_TEST_REGISTRY_HPP_INCLUDED



#ifndef CATCH_PREPROCESSOR_HPP_INCLUDED
#define CATCH_PREPROCESSOR_HPP_INCLUDED


#if defined(__GNUC__)
// We need to silence "empty __VA_ARGS__ warning", and using just _Pragma does not work
#pragma GCC system_header
#endif


#define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
#define CATCH_RECURSION_LEVEL1(...) CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL2(...) CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL3(...) CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL4(...) CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL5(...) CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))

#ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
// MSVC needs more evaluations
#define CATCH_RECURSION_LEVEL6(...) CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
#else
#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL5(__VA_ARGS__)
#endif

#define CATCH_REC_END(...)
#define CATCH_REC_OUT

#define CATCH_EMPTY()
#define CATCH_DEFER(id) id CATCH_EMPTY()

#define CATCH_REC_GET_END2() 0, CATCH_REC_END
#define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
#define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
#define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
#define CATCH_REC_NEXT1(test, next) CATCH_DEFER ( CATCH_REC_NEXT0 ) ( test, next, 0)
#define CATCH_REC_NEXT(test, next)  CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)

#define CATCH_REC_LIST0(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
#define CATCH_REC_LIST1(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0) ) ( f, peek, __VA_ARGS__ )
#define CATCH_REC_LIST2(f, x, peek, ...)   f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )

#define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
#define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD) ) ( f, userdata, peek, __VA_ARGS__ )
#define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)   f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )

// Applies the function macro `f` to each of the remaining parameters, inserts commas between the results,
// and passes userdata as the first parameter to each invocation,
// e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a), f(x, b), f(x, c)
#define CATCH_REC_LIST_UD(f, userdata, ...) CATCH_RECURSE(CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define CATCH_REC_LIST(f, ...) CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define INTERNAL_CATCH_STRINGIZE(...) INTERNAL_CATCH_STRINGIZE2(__VA_ARGS__)
#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_STRINGIZE2(...) #__VA_ARGS__
#define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param))
#else
// MSVC is adding extra space and needs another indirection to expand INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
#define INTERNAL_CATCH_STRINGIZE2(...) INTERNAL_CATCH_STRINGIZE3(__VA_ARGS__)
#define INTERNAL_CATCH_STRINGIZE3(...) #__VA_ARGS__
#define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) (INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param)) + 1)
#endif

#define INTERNAL_CATCH_MAKE_NAMESPACE2(...) ns_##__VA_ARGS__
#define INTERNAL_CATCH_MAKE_NAMESPACE(name) INTERNAL_CATCH_MAKE_NAMESPACE2(name)

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>())
#define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
#else
#define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) INTERNAL_CATCH_EXPAND_VARGS(decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>()))
#define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
#endif

#define INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(...)\
    CATCH_REC_LIST(INTERNAL_CATCH_MAKE_TYPE_LIST,__VA_ARGS__)

#define INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_0) INTERNAL_CATCH_REMOVE_PARENS(_0)
#define INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_0, _1) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_1)
#define INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_0, _1, _2) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_1, _2)
#define INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_0, _1, _2, _3) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_1, _2, _3)
#define INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_0, _1, _2, _3, _4) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_1, _2, _3, _4)
#define INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_0, _1, _2, _3, _4, _5) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_1, _2, _3, _4, _5)
#define INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_0, _1, _2, _3, _4, _5, _6) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_1, _2, _3, _4, _5, _6)
#define INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_0, _1, _2, _3, _4, _5, _6, _7) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_1, _2, _3, _4, _5, _6, _7)
#define INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_1, _2, _3, _4, _5, _6, _7, _8)
#define INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9)
#define INTERNAL_CATCH_REMOVE_PARENS_11_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10)

#define INTERNAL_CATCH_VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N

#define INTERNAL_CATCH_TYPE_GEN\
    template<typename...> struct TypeList {};\
    template<typename...Ts>\
    constexpr auto get_wrapper() noexcept -> TypeList<Ts...> { return {}; }\
    template<template<typename...> class...> struct TemplateTypeList{};\
    template<template<typename...> class...Cs>\
    constexpr auto get_wrapper() noexcept -> TemplateTypeList<Cs...> { return {}; }\
    template<typename...>\
    struct append;\
    template<typename...>\
    struct rewrap;\
    template<template<typename...> class, typename...>\
    struct create;\
    template<template<typename...> class, typename>\
    struct convert;\
    \
    template<typename T> \
    struct append<T> { using type = T; };\
    template< template<typename...> class L1, typename...E1, template<typename...> class L2, typename...E2, typename...Rest>\
    struct append<L1<E1...>, L2<E2...>, Rest...> { using type = typename append<L1<E1...,E2...>, Rest...>::type; };\
    template< template<typename...> class L1, typename...E1, typename...Rest>\
    struct append<L1<E1...>, TypeList<mpl_::na>, Rest...> { using type = L1<E1...>; };\
    \
    template< template<typename...> class Container, template<typename...> class List, typename...elems>\
    struct rewrap<TemplateTypeList<Container>, List<elems...>> { using type = TypeList<Container<elems...>>; };\
    template< template<typename...> class Container, template<typename...> class List, class...Elems, typename...Elements>\
    struct rewrap<TemplateTypeList<Container>, List<Elems...>, Elements...> { using type = typename append<TypeList<Container<Elems...>>, typename rewrap<TemplateTypeList<Container>, Elements...>::type>::type; };\
    \
    template<template <typename...> class Final, template< typename...> class...Containers, typename...Types>\
    struct create<Final, TemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<TemplateTypeList<Containers>, Types...>::type...>::type; };\
    template<template <typename...> class Final, template <typename...> class List, typename...Ts>\
    struct convert<Final, List<Ts...>> { using type = typename append<Final<>,TypeList<Ts>...>::type; };

#define INTERNAL_CATCH_NTTP_1(signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> struct Nttp{};\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    constexpr auto get_wrapper() noexcept -> Nttp<__VA_ARGS__> { return {}; } \
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...> struct NttpTemplateTypeList{};\
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Cs>\
    constexpr auto get_wrapper() noexcept -> NttpTemplateTypeList<Cs...> { return {}; } \
    \
    template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>> { using type = TypeList<Container<__VA_ARGS__>>; };\
    template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature), typename...Elements>\
    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>, Elements...> { using type = typename append<TypeList<Container<__VA_ARGS__>>, typename rewrap<NttpTemplateTypeList<Container>, Elements...>::type>::type; };\
    template<template <typename...> class Final, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Containers, typename...Types>\
    struct create<Final, NttpTemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<NttpTemplateTypeList<Containers>, Types...>::type...>::type; };

#define INTERNAL_CATCH_DECLARE_SIG_TEST0(TestName)
#define INTERNAL_CATCH_DECLARE_SIG_TEST1(TestName, signature)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    static void TestName()
#define INTERNAL_CATCH_DECLARE_SIG_TEST_X(TestName, signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    static void TestName()

#define INTERNAL_CATCH_DEFINE_SIG_TEST0(TestName)
#define INTERNAL_CATCH_DEFINE_SIG_TEST1(TestName, signature)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    static void TestName()
#define INTERNAL_CATCH_DEFINE_SIG_TEST_X(TestName, signature,...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    static void TestName()

#define INTERNAL_CATCH_NTTP_REGISTER0(TestFunc, signature)\
    template<typename Type>\
    void reg_test(TypeList<Type>, Catch::NameAndTags nameAndTags)\
    {\
        Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<Type>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
    }

#define INTERNAL_CATCH_NTTP_REGISTER(TestFunc, signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    void reg_test(Nttp<__VA_ARGS__>, Catch::NameAndTags nameAndTags)\
    {\
        Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<__VA_ARGS__>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
    }

#define INTERNAL_CATCH_NTTP_REGISTER_METHOD0(TestName, signature, ...)\
    template<typename Type>\
    void reg_test(TypeList<Type>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
    {\
        Catch::AutoReg( Catch::makeTestInvoker(&TestName<Type>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
    }

#define INTERNAL_CATCH_NTTP_REGISTER_METHOD(TestName, signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
    void reg_test(Nttp<__VA_ARGS__>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
    {\
        Catch::AutoReg( Catch::makeTestInvoker(&TestName<__VA_ARGS__>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
    }

#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0(TestName, ClassName)
#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1(TestName, ClassName, signature)\
    template<typename TestType> \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<TestType> { \
        void test();\
    }

#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X(TestName, ClassName, signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<__VA_ARGS__> { \
        void test();\
    }

#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0(TestName)
#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1(TestName, signature)\
    template<typename TestType> \
    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<TestType>::test()
#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X(TestName, signature, ...)\
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<__VA_ARGS__>::test()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_NTTP_0
#define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__),INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_0)
#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)(TestName, __VA_ARGS__)
#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)(TestName, ClassName, __VA_ARGS__)
#define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD0, INTERNAL_CATCH_NTTP_REGISTER_METHOD0)(TestName, __VA_ARGS__)
#define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__)
#define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__)
#define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestName, __VA_ARGS__)
#define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__)
#else
#define INTERNAL_CATCH_NTTP_0(signature)
#define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1,INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_0)( __VA_ARGS__))
#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)(TestName, __VA_ARGS__))
#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)(TestName, ClassName, __VA_ARGS__))
#define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD0, INTERNAL_CATCH_NTTP_REGISTER_METHOD0)(TestName, __VA_ARGS__))
#define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__))
#define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__))
#define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestName, __VA_ARGS__))
#define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__))
#endif

#endif // CATCH_PREPROCESSOR_HPP_INCLUDED


// GCC 5 and older do not properly handle disabling unused-variable warning
// with a _Pragma. This means that we have to leak the suppression to the
// user code as well :-(
#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ <= 5
#pragma GCC diagnostic ignored "-Wunused-variable"
#endif

#if defined(CATCH_CONFIG_DISABLE)
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( TestName, TestFunc, Name, Tags, Signature, ... )  \
        INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature))
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... )    \
        namespace{                                                                                  \
            namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                      \
            INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
        }                                                                                           \
        }                                                                                           \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))

    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
            INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename TestType, __VA_ARGS__ )
    #else
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
    #endif

    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
            INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__ )
    #else
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__ ) )
    #endif

    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
            INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
    #else
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
    #endif

    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
            INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
    #else
        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
    #endif
#endif


    ///////////////////////////////////////////////////////////////////////////////
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags, Signature, ... )\
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
        INTERNAL_CATCH_DECLARE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
            INTERNAL_CATCH_TYPE_GEN\
            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
            INTERNAL_CATCH_NTTP_REG_GEN(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))\
            template<typename...Types> \
            struct TestName{\
                TestName(){\
                    size_t index = 0;                                    \
                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)}; /* NOLINT(cppcoreguidelines-avoid-c-arrays,modernize-avoid-c-arrays,hicpp-avoid-c-arrays) */\
                    using expander = size_t[]; /* NOLINT(cppcoreguidelines-avoid-c-arrays,modernize-avoid-c-arrays,hicpp-avoid-c-arrays) */\
                    (void)expander{(reg_test(Types{}, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++)... };/* NOLINT */ \
                }\
            };\
            static const int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
            TestName<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
            return 0;\
        }();\
        }\
        }\
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename TestType, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__ ) )
#endif

    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(TestName, TestFuncName, Name, Tags, Signature, TmplTypes, TypesList) \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                      \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                      \
        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS       \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
        template<typename TestType> static void TestFuncName();       \
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                     \
            INTERNAL_CATCH_TYPE_GEN                                                  \
            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))         \
            template<typename... Types>                               \
            struct TestName {                                         \
                void reg_tests() {                                          \
                    size_t index = 0;                                    \
                    using expander = size_t[];                           \
                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
                    constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
                    constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFuncName<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + '<' + std::string(types_list[index % num_types]) + '>', Tags } ), index++)... };/* NOLINT */\
                }                                                     \
            };                                                        \
            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
                using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
                TestInit t;                                           \
                t.reg_tests();                                        \
                return 0;                                             \
            }();                                                      \
        }                                                             \
        }                                                             \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
        template<typename TestType>                                   \
        static void TestFuncName()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T,__VA_ARGS__)
#else
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, typename T, __VA_ARGS__ ) )
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__)
#else
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, Signature, __VA_ARGS__ ) )
#endif

    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2(TestName, TestFunc, Name, Tags, TmplList)\
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
        template<typename TestType> static void TestFunc();       \
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
        INTERNAL_CATCH_TYPE_GEN\
        template<typename... Types>                               \
        struct TestName {                                         \
            void reg_tests() {                                          \
                size_t index = 0;                                    \
                using expander = size_t[];                           \
                (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFunc<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " INTERNAL_CATCH_STRINGIZE(TmplList) " - " + std::to_string(index), Tags } ), index++)... };/* NOLINT */\
            }                                                     \
        };\
        static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
                using TestInit = typename convert<TestName, TmplList>::type; \
                TestInit t;                                           \
                t.reg_tests();                                        \
                return 0;                                             \
            }();                                                      \
        }}\
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
        template<typename TestType>                                   \
        static void TestFunc()

    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(Name, Tags, TmplList) \
        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), Name, Tags, TmplList )


    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... ) \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
            INTERNAL_CATCH_TYPE_GEN\
            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
            INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
            INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))\
            template<typename...Types> \
            struct TestNameClass{\
                TestNameClass(){\
                    size_t index = 0;                                    \
                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};\
                    using expander = size_t[];\
                    (void)expander{(reg_test(Types{}, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++)... };/* NOLINT */ \
                }\
            };\
            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
                TestNameClass<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
                return 0;\
        }();\
        }\
        }\
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_CLASS_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
#endif

    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(TestNameClass, TestName, ClassName, Name, Tags, Signature, TmplTypes, TypesList)\
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        template<typename TestType> \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
                void test();\
            };\
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestNameClass) {\
            INTERNAL_CATCH_TYPE_GEN                  \
            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
            template<typename...Types>\
            struct TestNameClass{\
                void reg_tests(){\
                    std::size_t index = 0;\
                    using expander = std::size_t[];\
                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
                    constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
                    constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + '<' + std::string(types_list[index % num_types]) + '>', Tags } ), index++)... };/* NOLINT */ \
                }\
            };\
            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
                using TestInit = typename create<TestNameClass, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type;\
                TestInit t;\
                t.reg_tests();\
                return 0;\
            }(); \
        }\
        }\
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        template<typename TestType> \
        void TestName<TestType>::test()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), ClassName, Name, Tags, typename T, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), ClassName, Name, Tags, typename T,__VA_ARGS__ ) )
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), ClassName, Name, Tags, Signature, __VA_ARGS__ )
#else
    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), ClassName, Name, Tags, Signature,__VA_ARGS__ ) )
#endif

    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, TmplList) \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
        CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
        template<typename TestType> \
        struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
            void test();\
        };\
        namespace {\
        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
            INTERNAL_CATCH_TYPE_GEN\
            template<typename...Types>\
            struct TestNameClass{\
                void reg_tests(){\
                    size_t index = 0;\
                    using expander = size_t[];\
                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName##_catch_sr, Catch::NameAndTags{ Name " - " INTERNAL_CATCH_STRINGIZE(TmplList) " - " + std::to_string(index), Tags } ), index++)... };/* NOLINT */ \
                }\
            };\
            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
                using TestInit = typename convert<TestNameClass, TmplList>::type;\
                TestInit t;\
                t.reg_tests();\
                return 0;\
            }(); \
        }}\
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
        template<typename TestType> \
        void TestName<TestType>::test()

#define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(ClassName, Name, Tags, TmplList) \
        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), ClassName, Name, Tags, TmplList )


#endif // CATCH_TEMPLATE_TEST_REGISTRY_HPP_INCLUDED


#if defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
    #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
    #define CATCH_TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
    #define CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #else
    #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE( __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
  #endif

#elif defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
    #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
    #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__)
    #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ )
  #else
    #define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__) )
    #define CATCH_TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__) )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__ ) )
    #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ ) )
  #endif

  // When disabled, these can be shared between proper preprocessor and MSVC preprocessor
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define CATCH_TEMPLATE_LIST_TEST_CASE( ... ) CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
    #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ )
    #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
    #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
    #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ )
    #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ )
    #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ )
    #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ )
    #define TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
    #define TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #else
    #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
    #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG( __VA_ARGS__ ) )
    #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
    #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
    #define TEMPLATE_PRODUCT_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE( __VA_ARGS__ ) )
    #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG( __VA_ARGS__ ) )
    #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
    #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, __VA_ARGS__ ) )
    #define TEMPLATE_LIST_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE( __VA_ARGS__ ) )
    #define TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
  #endif

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
    #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
    #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
    #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__)
    #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ )
  #else
    #define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__) )
    #define TEMPLATE_TEST_CASE_SIG( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__) )
    #define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, __VA_ARGS__ ) )
    #define TEMPLATE_TEST_CASE_METHOD_SIG( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__ ) )
  #endif

  // When disabled, these can be shared between proper preprocessor and MSVC preprocessor
  #define TEMPLATE_PRODUCT_TEST_CASE( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
  #define TEMPLATE_PRODUCT_TEST_CASE_SIG( ... ) TEMPLATE_TEST_CASE( __VA_ARGS__ )
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
  #define TEMPLATE_LIST_TEST_CASE( ... ) TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_LIST_TEST_CASE_METHOD( className, ... ) TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )

#endif // end of user facing macro declarations


#endif // CATCH_TEMPLATE_TEST_MACROS_HPP_INCLUDED


#ifndef CATCH_TEST_CASE_INFO_HPP_INCLUDED
#define CATCH_TEST_CASE_INFO_HPP_INCLUDED



#include <cstdint>
#include <string>
#include <vector>

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch {

    /**
     * A **view** of a tag string that provides case insensitive comparisons
     *
     * Note that in Catch2 internals, the square brackets around tags are
     * not a part of tag's representation, so e.g. "[cool-tag]" is represented
     * as "cool-tag" internally.
     */
    struct Tag {
        constexpr Tag(StringRef original_):
            original(original_)
        {}
        StringRef original;

        friend bool operator< ( Tag const& lhs, Tag const& rhs );
        friend bool operator==( Tag const& lhs, Tag const& rhs );
    };

    class ITestInvoker;

    enum class TestCaseProperties : uint8_t {
        None = 0,
        IsHidden = 1 << 1,
        ShouldFail = 1 << 2,
        MayFail = 1 << 3,
        Throws = 1 << 4,
        NonPortable = 1 << 5,
        Benchmark = 1 << 6
    };

    /**
     * Various metadata about the test case.
     *
     * A test case is uniquely identified by its (class)name and tags
     * combination, with source location being ignored, and other properties
     * being determined from tags.
     *
     * Tags are kept sorted.
     */
    struct TestCaseInfo : Detail::NonCopyable {

        TestCaseInfo(StringRef _className,
                     NameAndTags const& _tags,
                     SourceLineInfo const& _lineInfo);

        bool isHidden() const;
        bool throws() const;
        bool okToFail() const;
        bool expectedToFail() const;

        // Adds the tag(s) with test's filename (for the -# flag)
        void addFilenameTag();

        //! Orders by name, classname and tags
        friend bool operator<( TestCaseInfo const& lhs,
                               TestCaseInfo const& rhs );


        std::string tagsAsString() const;

        std::string name;
        StringRef className;
    private:
        std::string backingTags;
        // Internally we copy tags to the backing storage and then add
        // refs to this storage to the tags vector.
        void internalAppendTag(StringRef tagString);
    public:
        std::vector<Tag> tags;
        SourceLineInfo lineInfo;
        TestCaseProperties properties = TestCaseProperties::None;
    };

    /**
     * Wrapper over the test case information and the test case invoker
     *
     * Does not own either, and is specifically made to be cheap
     * to copy around.
     */
    class TestCaseHandle {
        TestCaseInfo* m_info;
        ITestInvoker* m_invoker;
    public:
        TestCaseHandle(TestCaseInfo* info, ITestInvoker* invoker) :
            m_info(info), m_invoker(invoker) {}

        void invoke() const {
            m_invoker->invoke();
        }

        TestCaseInfo const& getTestCaseInfo() const;
    };

    Detail::unique_ptr<TestCaseInfo>
    makeTestCaseInfo( StringRef className,
                      NameAndTags const& nameAndTags,
                      SourceLineInfo const& lineInfo );
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

#endif // CATCH_TEST_CASE_INFO_HPP_INCLUDED


#ifndef CATCH_TRANSLATE_EXCEPTION_HPP_INCLUDED
#define CATCH_TRANSLATE_EXCEPTION_HPP_INCLUDED



#ifndef CATCH_INTERFACES_EXCEPTION_HPP_INCLUDED
#define CATCH_INTERFACES_EXCEPTION_HPP_INCLUDED


#include <string>
#include <vector>

namespace Catch {
    using exceptionTranslateFunction = std::string(*)();

    class IExceptionTranslator;
    using ExceptionTranslators = std::vector<Detail::unique_ptr<IExceptionTranslator const>>;

    class IExceptionTranslator {
    public:
        virtual ~IExceptionTranslator(); // = default
        virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const = 0;
    };

    class IExceptionTranslatorRegistry {
    public:
        virtual ~IExceptionTranslatorRegistry(); // = default
        virtual std::string translateActiveException() const = 0;
    };

} // namespace Catch

#endif // CATCH_INTERFACES_EXCEPTION_HPP_INCLUDED

#include <exception>

namespace Catch {
    namespace Detail {
        void registerTranslatorImpl(
            Detail::unique_ptr<IExceptionTranslator>&& translator );
    }

    class ExceptionTranslatorRegistrar {
        template<typename T>
        class ExceptionTranslator : public IExceptionTranslator {
        public:

            ExceptionTranslator( std::string(*translateFunction)( T const& ) )
            : m_translateFunction( translateFunction )
            {}

            std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const override {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
                try {
                    if( it == itEnd )
                        std::rethrow_exception(std::current_exception());
                    else
                        return (*it)->translate( it+1, itEnd );
                }
                catch( T const& ex ) {
                    return m_translateFunction( ex );
                }
#else
                return "You should never get here!";
#endif
            }

        protected:
            std::string(*m_translateFunction)( T const& );
        };

    public:
        template<typename T>
        ExceptionTranslatorRegistrar( std::string(*translateFunction)( T const& ) ) {
            Detail::registerTranslatorImpl(
                Detail::make_unique<ExceptionTranslator<T>>(
                    translateFunction ) );
        }
    };

} // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
    static std::string translatorName( signature ); \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
    namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); } \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
    static std::string translatorName( signature )

#define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

#if defined(CATCH_CONFIG_DISABLE)
    #define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
            static std::string translatorName( signature )
#endif


// This macro is always prefixed
#if !defined(CATCH_CONFIG_DISABLE)
#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )
#else
#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
#endif


#endif // CATCH_TRANSLATE_EXCEPTION_HPP_INCLUDED


#ifndef CATCH_VERSION_HPP_INCLUDED
#define CATCH_VERSION_HPP_INCLUDED

#include <iosfwd>

namespace Catch {

    // Versioning information
    struct Version {
        Version( Version const& ) = delete;
        Version& operator=( Version const& ) = delete;
        Version(    unsigned int _majorVersion,
                    unsigned int _minorVersion,
                    unsigned int _patchNumber,
                    char const * const _branchName,
                    unsigned int _buildNumber );

        unsigned int const majorVersion;
        unsigned int const minorVersion;
        unsigned int const patchNumber;

        // buildNumber is only used if branchName is not null
        char const * const branchName;
        unsigned int const buildNumber;

        friend std::ostream& operator << ( std::ostream& os, Version const& version );
    };

    Version const& libraryVersion();
}

#endif // CATCH_VERSION_HPP_INCLUDED


#ifndef CATCH_VERSION_MACROS_HPP_INCLUDED
#define CATCH_VERSION_MACROS_HPP_INCLUDED

#define CATCH_VERSION_MAJOR 3
#define CATCH_VERSION_MINOR 4
#define CATCH_VERSION_PATCH 0

#endif // CATCH_VERSION_MACROS_HPP_INCLUDED


/** \file
 * This is a convenience header for Catch2's Generator support. It includes
 * **all** of Catch2 headers related to generators.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of (significantly) increased
 * compilation times.
 *
 * When a new header is added to either the `generators` folder,
 * or to the corresponding internal subfolder, it should be added here.
 */

#ifndef CATCH_GENERATORS_ALL_HPP_INCLUDED
#define CATCH_GENERATORS_ALL_HPP_INCLUDED



#ifndef CATCH_GENERATOR_EXCEPTION_HPP_INCLUDED
#define CATCH_GENERATOR_EXCEPTION_HPP_INCLUDED

#include <exception>

namespace Catch {

    // Exception type to be thrown when a Generator runs into an error,
    // e.g. it cannot initialize the first return value based on
    // runtime information
    class GeneratorException : public std::exception {
        const char* const m_msg = "";

    public:
        GeneratorException(const char* msg):
            m_msg(msg)
        {}

        const char* what() const noexcept override final;
    };

} // end namespace Catch

#endif // CATCH_GENERATOR_EXCEPTION_HPP_INCLUDED


#ifndef CATCH_GENERATORS_HPP_INCLUDED
#define CATCH_GENERATORS_HPP_INCLUDED



#ifndef CATCH_INTERFACES_GENERATORTRACKER_HPP_INCLUDED
#define CATCH_INTERFACES_GENERATORTRACKER_HPP_INCLUDED


#include <string>

namespace Catch {

    namespace Generators {
        class GeneratorUntypedBase {
            // Caches result from `toStringImpl`, assume that when it is an
            // empty string, the cache is invalidated.
            mutable std::string m_stringReprCache;

            // Counts based on `next` returning true
            std::size_t m_currentElementIndex = 0;

            /**
             * Attempts to move the generator to the next element
             *
             * Returns true iff the move succeeded (and a valid element
             * can be retrieved).
             */
            virtual bool next() = 0;

            //! Customization point for `currentElementAsString`
            virtual std::string stringifyImpl() const = 0;

        public:
            GeneratorUntypedBase() = default;
            // Generation of copy ops is deprecated (and Clang will complain)
            // if there is a user destructor defined
            GeneratorUntypedBase(GeneratorUntypedBase const&) = default;
            GeneratorUntypedBase& operator=(GeneratorUntypedBase const&) = default;

            virtual ~GeneratorUntypedBase(); // = default;

            /**
             * Attempts to move the generator to the next element
             *
             * Serves as a non-virtual interface to `next`, so that the
             * top level interface can provide sanity checking and shared
             * features.
             *
             * As with `next`, returns true iff the move succeeded and
             * the generator has new valid element to provide.
             */
            bool countedNext();

            std::size_t currentElementIndex() const { return m_currentElementIndex; }

            /**
             * Returns generator's current element as user-friendly string.
             *
             * By default returns string equivalent to calling
             * `Catch::Detail::stringify` on the current element, but generators
             * can customize their implementation as needed.
             *
             * Not thread-safe due to internal caching.
             *
             * The returned ref is valid only until the generator instance
             * is destructed, or it moves onto the next element, whichever
             * comes first.
             */
            StringRef currentElementAsString() const;
        };
        using GeneratorBasePtr = Catch::Detail::unique_ptr<GeneratorUntypedBase>;

    } // namespace Generators

    class IGeneratorTracker {
    public:
        virtual ~IGeneratorTracker(); // = default;
        virtual auto hasGenerator() const -> bool = 0;
        virtual auto getGenerator() const -> Generators::GeneratorBasePtr const& = 0;
        virtual void setGenerator( Generators::GeneratorBasePtr&& generator ) = 0;
    };

} // namespace Catch

#endif // CATCH_INTERFACES_GENERATORTRACKER_HPP_INCLUDED

#include <vector>
#include <tuple>

namespace Catch {

namespace Generators {

namespace Detail {

    //! Throws GeneratorException with the provided message
    [[noreturn]]
    void throw_generator_exception(char const * msg);

} // end namespace detail

    template<typename T>
    class IGenerator : public GeneratorUntypedBase {
        std::string stringifyImpl() const override {
            return ::Catch::Detail::stringify( get() );
        }

    public:
        ~IGenerator() override = default;
        IGenerator() = default;
        IGenerator(IGenerator const&) = default;
        IGenerator& operator=(IGenerator const&) = default;


        // Returns the current element of the generator
        //
        // \Precondition The generator is either freshly constructed,
        // or the last call to `next()` returned true
        virtual T const& get() const = 0;
        using type = T;
    };

    template <typename T>
    using GeneratorPtr = Catch::Detail::unique_ptr<IGenerator<T>>;

    template <typename T>
    class GeneratorWrapper final {
        GeneratorPtr<T> m_generator;
    public:
        //! Takes ownership of the passed pointer.
        GeneratorWrapper(IGenerator<T>* generator):
            m_generator(generator) {}
        GeneratorWrapper(GeneratorPtr<T> generator):
            m_generator(CATCH_MOVE(generator)) {}

        T const& get() const {
            return m_generator->get();
        }
        bool next() {
            return m_generator->countedNext();
        }
    };


    template<typename T>
    class SingleValueGenerator final : public IGenerator<T> {
        T m_value;
    public:
        SingleValueGenerator(T const& value) :
            m_value(value)
        {}
        SingleValueGenerator(T&& value):
            m_value(CATCH_MOVE(value))
        {}

        T const& get() const override {
            return m_value;
        }
        bool next() override {
            return false;
        }
    };

    template<typename T>
    class FixedValuesGenerator final : public IGenerator<T> {
        static_assert(!std::is_same<T, bool>::value,
            "FixedValuesGenerator does not support bools because of std::vector<bool>"
            "specialization, use SingleValue Generator instead.");
        std::vector<T> m_values;
        size_t m_idx = 0;
    public:
        FixedValuesGenerator( std::initializer_list<T> values ) : m_values( values ) {}

        T const& get() const override {
            return m_values[m_idx];
        }
        bool next() override {
            ++m_idx;
            return m_idx < m_values.size();
        }
    };

    template <typename T, typename DecayedT = std::decay_t<T>>
    GeneratorWrapper<DecayedT> value( T&& value ) {
        return GeneratorWrapper<DecayedT>(
            Catch::Detail::make_unique<SingleValueGenerator<DecayedT>>(
                CATCH_FORWARD( value ) ) );
    }
    template <typename T>
    GeneratorWrapper<T> values(std::initializer_list<T> values) {
        return GeneratorWrapper<T>(Catch::Detail::make_unique<FixedValuesGenerator<T>>(values));
    }

    template<typename T>
    class Generators : public IGenerator<T> {
        std::vector<GeneratorWrapper<T>> m_generators;
        size_t m_current = 0;

        void add_generator( GeneratorWrapper<T>&& generator ) {
            m_generators.emplace_back( CATCH_MOVE( generator ) );
        }
        void add_generator( T const& val ) {
            m_generators.emplace_back( value( val ) );
        }
        void add_generator( T&& val ) {
            m_generators.emplace_back( value( CATCH_MOVE( val ) ) );
        }
        template <typename U>
        std::enable_if_t<!std::is_same<std::decay_t<U>, T>::value>
        add_generator( U&& val ) {
            add_generator( T( CATCH_FORWARD( val ) ) );
        }

        template <typename U> void add_generators( U&& valueOrGenerator ) {
            add_generator( CATCH_FORWARD( valueOrGenerator ) );
        }

        template <typename U, typename... Gs>
        void add_generators( U&& valueOrGenerator, Gs&&... moreGenerators ) {
            add_generator( CATCH_FORWARD( valueOrGenerator ) );
            add_generators( CATCH_FORWARD( moreGenerators )... );
        }

    public:
        template <typename... Gs>
        Generators(Gs &&... moreGenerators) {
            m_generators.reserve(sizeof...(Gs));
            add_generators(CATCH_FORWARD(moreGenerators)...);
        }

        T const& get() const override {
            return m_generators[m_current].get();
        }

        bool next() override {
            if (m_current >= m_generators.size()) {
                return false;
            }
            const bool current_status = m_generators[m_current].next();
            if (!current_status) {
                ++m_current;
            }
            return m_current < m_generators.size();
        }
    };


    template <typename... Ts>
    GeneratorWrapper<std::tuple<std::decay_t<Ts>...>>
    table( std::initializer_list<std::tuple<std::decay_t<Ts>...>> tuples ) {
        return values<std::tuple<Ts...>>( tuples );
    }

    // Tag type to signal that a generator sequence should convert arguments to a specific type
    template <typename T>
    struct as {};

    template<typename T, typename... Gs>
    auto makeGenerators( GeneratorWrapper<T>&& generator, Gs &&... moreGenerators ) -> Generators<T> {
        return Generators<T>(CATCH_MOVE(generator), CATCH_FORWARD(moreGenerators)...);
    }
    template<typename T>
    auto makeGenerators( GeneratorWrapper<T>&& generator ) -> Generators<T> {
        return Generators<T>(CATCH_MOVE(generator));
    }
    template<typename T, typename... Gs>
    auto makeGenerators( T&& val, Gs &&... moreGenerators ) -> Generators<std::decay_t<T>> {
        return makeGenerators( value( CATCH_FORWARD( val ) ), CATCH_FORWARD( moreGenerators )... );
    }
    template<typename T, typename U, typename... Gs>
    auto makeGenerators( as<T>, U&& val, Gs &&... moreGenerators ) -> Generators<T> {
        return makeGenerators( value( T( CATCH_FORWARD( val ) ) ), CATCH_FORWARD( moreGenerators )... );
    }

    IGeneratorTracker* acquireGeneratorTracker( StringRef generatorName,
                                                SourceLineInfo const& lineInfo );
    IGeneratorTracker* createGeneratorTracker( StringRef generatorName,
                                               SourceLineInfo lineInfo,
                                               GeneratorBasePtr&& generator );

    template<typename L>
    auto generate( StringRef generatorName, SourceLineInfo const& lineInfo, L const& generatorExpression ) -> typename decltype(generatorExpression())::type {
        using UnderlyingType = typename decltype(generatorExpression())::type;

        IGeneratorTracker* tracker = acquireGeneratorTracker( generatorName, lineInfo );
        // Creation of tracker is delayed after generator creation, so
        // that constructing generator can fail without breaking everything.
        if (!tracker) {
            tracker = createGeneratorTracker(
                generatorName,
                lineInfo,
                Catch::Detail::make_unique<Generators<UnderlyingType>>(
                    generatorExpression() ) );
        }

        auto const& generator = static_cast<IGenerator<UnderlyingType> const&>( *tracker->getGenerator() );
        return generator.get();
    }

} // namespace Generators
} // namespace Catch

#define CATCH_INTERNAL_GENERATOR_STRINGIZE_IMPL( ... ) #__VA_ARGS__##_catch_sr
#define CATCH_INTERNAL_GENERATOR_STRINGIZE(...) CATCH_INTERNAL_GENERATOR_STRINGIZE_IMPL(__VA_ARGS__)

#define GENERATE( ... ) \
    Catch::Generators::generate( CATCH_INTERNAL_GENERATOR_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
                                 CATCH_INTERNAL_LINEINFO, \
                                 [ ]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)
#define GENERATE_COPY( ... ) \
    Catch::Generators::generate( CATCH_INTERNAL_GENERATOR_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
                                 CATCH_INTERNAL_LINEINFO, \
                                 [=]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)
#define GENERATE_REF( ... ) \
    Catch::Generators::generate( CATCH_INTERNAL_GENERATOR_STRINGIZE(INTERNAL_CATCH_UNIQUE_NAME(generator)), \
                                 CATCH_INTERNAL_LINEINFO, \
                                 [&]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } ) //NOLINT(google-build-using-namespace)

#endif // CATCH_GENERATORS_HPP_INCLUDED


#ifndef CATCH_GENERATORS_ADAPTERS_HPP_INCLUDED
#define CATCH_GENERATORS_ADAPTERS_HPP_INCLUDED


#include <cassert>

namespace Catch {
namespace Generators {

    template <typename T>
    class TakeGenerator final : public IGenerator<T> {
        GeneratorWrapper<T> m_generator;
        size_t m_returned = 0;
        size_t m_target;
    public:
        TakeGenerator(size_t target, GeneratorWrapper<T>&& generator):
            m_generator(CATCH_MOVE(generator)),
            m_target(target)
        {
            assert(target != 0 && "Empty generators are not allowed");
        }
        T const& get() const override {
            return m_generator.get();
        }
        bool next() override {
            ++m_returned;
            if (m_returned >= m_target) {
                return false;
            }

            const auto success = m_generator.next();
            // If the underlying generator does not contain enough values
            // then we cut short as well
            if (!success) {
                m_returned = m_target;
            }
            return success;
        }
    };

    template <typename T>
    GeneratorWrapper<T> take(size_t target, GeneratorWrapper<T>&& generator) {
        return GeneratorWrapper<T>(Catch::Detail::make_unique<TakeGenerator<T>>(target, CATCH_MOVE(generator)));
    }


    template <typename T, typename Predicate>
    class FilterGenerator final : public IGenerator<T> {
        GeneratorWrapper<T> m_generator;
        Predicate m_predicate;
    public:
        template <typename P = Predicate>
        FilterGenerator(P&& pred, GeneratorWrapper<T>&& generator):
            m_generator(CATCH_MOVE(generator)),
            m_predicate(CATCH_FORWARD(pred))
        {
            if (!m_predicate(m_generator.get())) {
                // It might happen that there are no values that pass the
                // filter. In that case we throw an exception.
                auto has_initial_value = next();
                if (!has_initial_value) {
                    Detail::throw_generator_exception("No valid value found in filtered generator");
                }
            }
        }

        T const& get() const override {
            return m_generator.get();
        }

        bool next() override {
            bool success = m_generator.next();
            if (!success) {
                return false;
            }
            while (!m_predicate(m_generator.get()) && (success = m_generator.next()) == true);
            return success;
        }
    };


    template <typename T, typename Predicate>
    GeneratorWrapper<T> filter(Predicate&& pred, GeneratorWrapper<T>&& generator) {
        return GeneratorWrapper<T>(Catch::Detail::make_unique<FilterGenerator<T, Predicate>>(CATCH_FORWARD(pred), CATCH_MOVE(generator)));
    }

    template <typename T>
    class RepeatGenerator final : public IGenerator<T> {
        static_assert(!std::is_same<T, bool>::value,
            "RepeatGenerator currently does not support bools"
            "because of std::vector<bool> specialization");
        GeneratorWrapper<T> m_generator;
        mutable std::vector<T> m_returned;
        size_t m_target_repeats;
        size_t m_current_repeat = 0;
        size_t m_repeat_index = 0;
    public:
        RepeatGenerator(size_t repeats, GeneratorWrapper<T>&& generator):
            m_generator(CATCH_MOVE(generator)),
            m_target_repeats(repeats)
        {
            assert(m_target_repeats > 0 && "Repeat generator must repeat at least once");
        }

        T const& get() const override {
            if (m_current_repeat == 0) {
                m_returned.push_back(m_generator.get());
                return m_returned.back();
            }
            return m_returned[m_repeat_index];
        }

        bool next() override {
            // There are 2 basic cases:
            // 1) We are still reading the generator
            // 2) We are reading our own cache

            // In the first case, we need to poke the underlying generator.
            // If it happily moves, we are left in that state, otherwise it is time to start reading from our cache
            if (m_current_repeat == 0) {
                const auto success = m_generator.next();
                if (!success) {
                    ++m_current_repeat;
                }
                return m_current_repeat < m_target_repeats;
            }

            // In the second case, we need to move indices forward and check that we haven't run up against the end
            ++m_repeat_index;
            if (m_repeat_index == m_returned.size()) {
                m_repeat_index = 0;
                ++m_current_repeat;
            }
            return m_current_repeat < m_target_repeats;
        }
    };

    template <typename T>
    GeneratorWrapper<T> repeat(size_t repeats, GeneratorWrapper<T>&& generator) {
        return GeneratorWrapper<T>(Catch::Detail::make_unique<RepeatGenerator<T>>(repeats, CATCH_MOVE(generator)));
    }

    template <typename T, typename U, typename Func>
    class MapGenerator final : public IGenerator<T> {
        // TBD: provide static assert for mapping function, for friendly error message
        GeneratorWrapper<U> m_generator;
        Func m_function;
        // To avoid returning dangling reference, we have to save the values
        T m_cache;
    public:
        template <typename F2 = Func>
        MapGenerator(F2&& function, GeneratorWrapper<U>&& generator) :
            m_generator(CATCH_MOVE(generator)),
            m_function(CATCH_FORWARD(function)),
            m_cache(m_function(m_generator.get()))
        {}

        T const& get() const override {
            return m_cache;
        }
        bool next() override {
            const auto success = m_generator.next();
            if (success) {
                m_cache = m_function(m_generator.get());
            }
            return success;
        }
    };

    template <typename Func, typename U, typename T = FunctionReturnType<Func, U>>
    GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
        return GeneratorWrapper<T>(
            Catch::Detail::make_unique<MapGenerator<T, U, Func>>(CATCH_FORWARD(function), CATCH_MOVE(generator))
        );
    }

    template <typename T, typename U, typename Func>
    GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
        return GeneratorWrapper<T>(
            Catch::Detail::make_unique<MapGenerator<T, U, Func>>(CATCH_FORWARD(function), CATCH_MOVE(generator))
        );
    }

    template <typename T>
    class ChunkGenerator final : public IGenerator<std::vector<T>> {
        std::vector<T> m_chunk;
        size_t m_chunk_size;
        GeneratorWrapper<T> m_generator;
        bool m_used_up = false;
    public:
        ChunkGenerator(size_t size, GeneratorWrapper<T> generator) :
            m_chunk_size(size), m_generator(CATCH_MOVE(generator))
        {
            m_chunk.reserve(m_chunk_size);
            if (m_chunk_size != 0) {
                m_chunk.push_back(m_generator.get());
                for (size_t i = 1; i < m_chunk_size; ++i) {
                    if (!m_generator.next()) {
                        Detail::throw_generator_exception("Not enough values to initialize the first chunk");
                    }
                    m_chunk.push_back(m_generator.get());
                }
            }
        }
        std::vector<T> const& get() const override {
            return m_chunk;
        }
        bool next() override {
            m_chunk.clear();
            for (size_t idx = 0; idx < m_chunk_size; ++idx) {
                if (!m_generator.next()) {
                    return false;
                }
                m_chunk.push_back(m_generator.get());
            }
            return true;
        }
    };

    template <typename T>
    GeneratorWrapper<std::vector<T>> chunk(size_t size, GeneratorWrapper<T>&& generator) {
        return GeneratorWrapper<std::vector<T>>(
            Catch::Detail::make_unique<ChunkGenerator<T>>(size, CATCH_MOVE(generator))
        );
    }

} // namespace Generators
} // namespace Catch


#endif // CATCH_GENERATORS_ADAPTERS_HPP_INCLUDED


#ifndef CATCH_GENERATORS_RANDOM_HPP_INCLUDED
#define CATCH_GENERATORS_RANDOM_HPP_INCLUDED



#ifndef CATCH_RANDOM_NUMBER_GENERATOR_HPP_INCLUDED
#define CATCH_RANDOM_NUMBER_GENERATOR_HPP_INCLUDED

#include <cstdint>

namespace Catch {

    // This is a simple implementation of C++11 Uniform Random Number
    // Generator. It does not provide all operators, because Catch2
    // does not use it, but it should behave as expected inside stdlib's
    // distributions.
    // The implementation is based on the PCG family (http://pcg-random.org)
    class SimplePcg32 {
        using state_type = std::uint64_t;
    public:
        using result_type = std::uint32_t;
        static constexpr result_type (min)() {
            return 0;
        }
        static constexpr result_type (max)() {
            return static_cast<result_type>(-1);
        }

        // Provide some default initial state for the default constructor
        SimplePcg32():SimplePcg32(0xed743cc4U) {}

        explicit SimplePcg32(result_type seed_);

        void seed(result_type seed_);
        void discard(uint64_t skip);

        result_type operator()();

    private:
        friend bool operator==(SimplePcg32 const& lhs, SimplePcg32 const& rhs);
        friend bool operator!=(SimplePcg32 const& lhs, SimplePcg32 const& rhs);

        // In theory we also need operator<< and operator>>
        // In practice we do not use them, so we will skip them for now


        std::uint64_t m_state;
        // This part of the state determines which "stream" of the numbers
        // is chosen -- we take it as a constant for Catch2, so we only
        // need to deal with seeding the main state.
        // Picked by reading 8 bytes from `/dev/random` :-)
        static const std::uint64_t s_inc = (0x13ed0cc53f939476ULL << 1ULL) | 1ULL;
    };

} // end namespace Catch

#endif // CATCH_RANDOM_NUMBER_GENERATOR_HPP_INCLUDED

#include <random>

namespace Catch {
namespace Generators {
namespace Detail {
    // Returns a suitable seed for a random floating generator based off
    // the primary internal rng. It does so by taking current value from
    // the rng and returning it as the seed.
    std::uint32_t getSeed();
}

template <typename Float>
class RandomFloatingGenerator final : public IGenerator<Float> {
    Catch::SimplePcg32 m_rng;
    std::uniform_real_distribution<Float> m_dist;
    Float m_current_number;
public:
    RandomFloatingGenerator( Float a, Float b, std::uint32_t seed ):
        m_rng(seed),
        m_dist(a, b) {
        static_cast<void>(next());
    }

    Float const& get() const override {
        return m_current_number;
    }
    bool next() override {
        m_current_number = m_dist(m_rng);
        return true;
    }
};

template <typename Integer>
class RandomIntegerGenerator final : public IGenerator<Integer> {
    Catch::SimplePcg32 m_rng;
    std::uniform_int_distribution<Integer> m_dist;
    Integer m_current_number;
public:
    RandomIntegerGenerator( Integer a, Integer b, std::uint32_t seed ):
        m_rng(seed),
        m_dist(a, b) {
        static_cast<void>(next());
    }

    Integer const& get() const override {
        return m_current_number;
    }
    bool next() override {
        m_current_number = m_dist(m_rng);
        return true;
    }
};

template <typename T>
std::enable_if_t<std::is_integral<T>::value, GeneratorWrapper<T>>
random(T a, T b) {
    static_assert(
        !std::is_same<T, char>::value &&
        !std::is_same<T, int8_t>::value &&
        !std::is_same<T, uint8_t>::value &&
        !std::is_same<T, signed char>::value &&
        !std::is_same<T, unsigned char>::value &&
        !std::is_same<T, bool>::value,
        "The requested type is not supported by the underlying random distributions from std" );
    return GeneratorWrapper<T>(
        Catch::Detail::make_unique<RandomIntegerGenerator<T>>(a, b, Detail::getSeed())
    );
}

template <typename T>
std::enable_if_t<std::is_floating_point<T>::value,
GeneratorWrapper<T>>
random(T a, T b) {
    return GeneratorWrapper<T>(
        Catch::Detail::make_unique<RandomFloatingGenerator<T>>(a, b, Detail::getSeed())
    );
}


} // namespace Generators
} // namespace Catch


#endif // CATCH_GENERATORS_RANDOM_HPP_INCLUDED


#ifndef CATCH_GENERATORS_RANGE_HPP_INCLUDED
#define CATCH_GENERATORS_RANGE_HPP_INCLUDED


#include <iterator>
#include <type_traits>

namespace Catch {
namespace Generators {


template <typename T>
class RangeGenerator final : public IGenerator<T> {
    T m_current;
    T m_end;
    T m_step;
    bool m_positive;

public:
    RangeGenerator(T const& start, T const& end, T const& step):
        m_current(start),
        m_end(end),
        m_step(step),
        m_positive(m_step > T(0))
    {
        assert(m_current != m_end && "Range start and end cannot be equal");
        assert(m_step != T(0) && "Step size cannot be zero");
        assert(((m_positive && m_current <= m_end) || (!m_positive && m_current >= m_end)) && "Step moves away from end");
    }

    RangeGenerator(T const& start, T const& end):
        RangeGenerator(start, end, (start < end) ? T(1) : T(-1))
    {}

    T const& get() const override {
        return m_current;
    }

    bool next() override {
        m_current += m_step;
        return (m_positive) ? (m_current < m_end) : (m_current > m_end);
    }
};

template <typename T>
GeneratorWrapper<T> range(T const& start, T const& end, T const& step) {
    static_assert(std::is_arithmetic<T>::value && !std::is_same<T, bool>::value, "Type must be numeric");
    return GeneratorWrapper<T>(Catch::Detail::make_unique<RangeGenerator<T>>(start, end, step));
}

template <typename T>
GeneratorWrapper<T> range(T const& start, T const& end) {
    static_assert(std::is_integral<T>::value && !std::is_same<T, bool>::value, "Type must be an integer");
    return GeneratorWrapper<T>(Catch::Detail::make_unique<RangeGenerator<T>>(start, end));
}


template <typename T>
class IteratorGenerator final : public IGenerator<T> {
    static_assert(!std::is_same<T, bool>::value,
        "IteratorGenerator currently does not support bools"
        "because of std::vector<bool> specialization");

    std::vector<T> m_elems;
    size_t m_current = 0;
public:
    template <typename InputIterator, typename InputSentinel>
    IteratorGenerator(InputIterator first, InputSentinel last):m_elems(first, last) {
        if (m_elems.empty()) {
            Detail::throw_generator_exception("IteratorGenerator received no valid values");
        }
    }

    T const& get() const override {
        return m_elems[m_current];
    }

    bool next() override {
        ++m_current;
        return m_current != m_elems.size();
    }
};

template <typename InputIterator,
          typename InputSentinel,
          typename ResultType = typename std::iterator_traits<InputIterator>::value_type>
GeneratorWrapper<ResultType> from_range(InputIterator from, InputSentinel to) {
    return GeneratorWrapper<ResultType>(Catch::Detail::make_unique<IteratorGenerator<ResultType>>(from, to));
}

template <typename Container,
          typename ResultType = typename Container::value_type>
GeneratorWrapper<ResultType> from_range(Container const& cnt) {
    return GeneratorWrapper<ResultType>(Catch::Detail::make_unique<IteratorGenerator<ResultType>>(cnt.begin(), cnt.end()));
}


} // namespace Generators
} // namespace Catch


#endif // CATCH_GENERATORS_RANGE_HPP_INCLUDED

#endif // CATCH_GENERATORS_ALL_HPP_INCLUDED


/** \file
 * This is a convenience header for Catch2's interfaces. It includes
 * **all** of Catch2 headers related to interfaces.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of somewhat increased compilation
 * times.
 *
 * When a new header is added to either the `interfaces` folder, or to
 * the corresponding internal subfolder, it should be added here.
 */


#ifndef CATCH_INTERFACES_ALL_HPP_INCLUDED
#define CATCH_INTERFACES_ALL_HPP_INCLUDED



#ifndef CATCH_INTERFACES_REPORTER_HPP_INCLUDED
#define CATCH_INTERFACES_REPORTER_HPP_INCLUDED



#ifndef CATCH_TEST_RUN_INFO_HPP_INCLUDED
#define CATCH_TEST_RUN_INFO_HPP_INCLUDED


namespace Catch {

    struct TestRunInfo {
        constexpr TestRunInfo(StringRef _name) : name(_name) {}
        StringRef name;
    };

} // end namespace Catch

#endif // CATCH_TEST_RUN_INFO_HPP_INCLUDED

#include <map>
#include <string>
#include <vector>
#include <iosfwd>

namespace Catch {

    struct ReporterDescription;
    struct ListenerDescription;
    struct TagInfo;
    struct TestCaseInfo;
    class TestCaseHandle;
    class IConfig;
    class IStream;
    enum class ColourMode : std::uint8_t;

    struct ReporterConfig {
        ReporterConfig( IConfig const* _fullConfig,
                        Detail::unique_ptr<IStream> _stream,
                        ColourMode colourMode,
                        std::map<std::string, std::string> customOptions );

        ReporterConfig( ReporterConfig&& ) = default;
        ReporterConfig& operator=( ReporterConfig&& ) = default;
        ~ReporterConfig(); // = default

        Detail::unique_ptr<IStream> takeStream() &&;
        IConfig const* fullConfig() const;
        ColourMode colourMode() const;
        std::map<std::string, std::string> const& customOptions() const;

    private:
        Detail::unique_ptr<IStream> m_stream;
        IConfig const* m_fullConfig;
        ColourMode m_colourMode;
        std::map<std::string, std::string> m_customOptions;
    };

    struct AssertionStats {
        AssertionStats( AssertionResult const& _assertionResult,
                        std::vector<MessageInfo> const& _infoMessages,
                        Totals const& _totals );

        AssertionStats( AssertionStats const& )              = default;
        AssertionStats( AssertionStats && )                  = default;
        AssertionStats& operator = ( AssertionStats const& ) = delete;
        AssertionStats& operator = ( AssertionStats && )     = delete;

        AssertionResult assertionResult;
        std::vector<MessageInfo> infoMessages;
        Totals totals;
    };

    struct SectionStats {
        SectionStats(   SectionInfo&& _sectionInfo,
                        Counts const& _assertions,
                        double _durationInSeconds,
                        bool _missingAssertions );

        SectionInfo sectionInfo;
        Counts assertions;
        double durationInSeconds;
        bool missingAssertions;
    };

    struct TestCaseStats {
        TestCaseStats(  TestCaseInfo const& _testInfo,
                        Totals const& _totals,
                        std::string&& _stdOut,
                        std::string&& _stdErr,
                        bool _aborting );

        TestCaseInfo const * testInfo;
        Totals totals;
        std::string stdOut;
        std::string stdErr;
        bool aborting;
    };

    struct TestRunStats {
        TestRunStats(   TestRunInfo const& _runInfo,
                        Totals const& _totals,
                        bool _aborting );

        TestRunInfo runInfo;
        Totals totals;
        bool aborting;
    };

    //! By setting up its preferences, a reporter can modify Catch2's behaviour
    //! in some regards, e.g. it can request Catch2 to capture writes to
    //! stdout/stderr during test execution, and pass them to the reporter.
    struct ReporterPreferences {
        //! Catch2 should redirect writes to stdout and pass them to the
        //! reporter
        bool shouldRedirectStdOut = false;
        //! Catch2 should call `Reporter::assertionEnded` even for passing
        //! assertions
        bool shouldReportAllAssertions = false;
    };

    /**
     * The common base for all reporters and event listeners
     *
     * Implementing classes must also implement:
     *
     *     //! User-friendly description of the reporter/listener type
     *     static std::string getDescription()
     *
     * Generally shouldn't be derived from by users of Catch2 directly,
     * instead they should derive from one of the utility bases that
     * derive from this class.
     */
    class IEventListener {
    protected:
        //! Derived classes can set up their preferences here
        ReporterPreferences m_preferences;
        //! The test run's config as filled in from CLI and defaults
        IConfig const* m_config;

    public:
        IEventListener( IConfig const* config ): m_config( config ) {}

        virtual ~IEventListener(); // = default;

        // Implementing class must also provide the following static methods:
        // static std::string getDescription();

        ReporterPreferences const& getPreferences() const {
            return m_preferences;
        }

        //! Called when no test cases match provided test spec
        virtual void noMatchingTestCases( StringRef unmatchedSpec ) = 0;
        //! Called for all invalid test specs from the cli
        virtual void reportInvalidTestSpec( StringRef invalidArgument ) = 0;

        /**
         * Called once in a testing run before tests are started
         *
         * Not called if tests won't be run (e.g. only listing will happen)
         */
        virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;

        //! Called _once_ for each TEST_CASE, no matter how many times it is entered
        virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
        //! Called _every time_ a TEST_CASE is entered, including repeats (due to sections)
        virtual void testCasePartialStarting( TestCaseInfo const& testInfo, uint64_t partNumber ) = 0;
        //! Called when a `SECTION` is being entered. Not called for skipped sections
        virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;

        //! Called when user-code is being probed before the actual benchmark runs
        virtual void benchmarkPreparing( StringRef benchmarkName ) = 0;
        //! Called after probe but before the user-code is being benchmarked
        virtual void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) = 0;
        //! Called with the benchmark results if benchmark successfully finishes
        virtual void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) = 0;
        //! Called if running the benchmarks fails for any reason
        virtual void benchmarkFailed( StringRef benchmarkName ) = 0;

        //! Called before assertion success/failure is evaluated
        virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;

        //! Called after assertion was fully evaluated
        virtual void assertionEnded( AssertionStats const& assertionStats ) = 0;

        //! Called after a `SECTION` has finished running
        virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
        //! Called _every time_ a TEST_CASE is entered, including repeats (due to sections)
        virtual void testCasePartialEnded(TestCaseStats const& testCaseStats, uint64_t partNumber ) = 0;
        //! Called _once_ for each TEST_CASE, no matter how many times it is entered
        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
        /**
         * Called once after all tests in a testing run are finished
         *
         * Not called if tests weren't run (e.g. only listings happened)
         */
        virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;

        /**
         * Called with test cases that are skipped due to the test run aborting.
         * NOT called for test cases that are explicitly skipped using the `SKIP` macro.
         *
         * Deprecated - will be removed in the next major release.
         */
        virtual void skipTest( TestCaseInfo const& testInfo ) = 0;

        //! Called if a fatal error (signal/structured exception) occurred
        virtual void fatalErrorEncountered( StringRef error ) = 0;

        //! Writes out information about provided reporters using reporter-specific format
        virtual void listReporters(std::vector<ReporterDescription> const& descriptions) = 0;
        //! Writes out the provided listeners descriptions using reporter-specific format
        virtual void listListeners(std::vector<ListenerDescription> const& descriptions) = 0;
        //! Writes out information about provided tests using reporter-specific format
        virtual void listTests(std::vector<TestCaseHandle> const& tests) = 0;
        //! Writes out information about the provided tags using reporter-specific format
        virtual void listTags(std::vector<TagInfo> const& tags) = 0;
    };
    using IEventListenerPtr = Detail::unique_ptr<IEventListener>;

} // end namespace Catch

#endif // CATCH_INTERFACES_REPORTER_HPP_INCLUDED


#ifndef CATCH_INTERFACES_REPORTER_FACTORY_HPP_INCLUDED
#define CATCH_INTERFACES_REPORTER_FACTORY_HPP_INCLUDED


#include <string>

namespace Catch {

    struct ReporterConfig;
    class IConfig;
    class IEventListener;
    using IEventListenerPtr = Detail::unique_ptr<IEventListener>;


    class IReporterFactory {
    public:
        virtual ~IReporterFactory(); // = default

        virtual IEventListenerPtr
        create( ReporterConfig&& config ) const = 0;
        virtual std::string getDescription() const = 0;
    };
    using IReporterFactoryPtr = Detail::unique_ptr<IReporterFactory>;

    class EventListenerFactory {
    public:
        virtual ~EventListenerFactory(); // = default
        virtual IEventListenerPtr create( IConfig const* config ) const = 0;
        //! Return a meaningful name for the listener, e.g. its type name
        virtual StringRef getName() const = 0;
        //! Return listener's description if available
        virtual std::string getDescription() const = 0;
    };
} // namespace Catch

#endif // CATCH_INTERFACES_REPORTER_FACTORY_HPP_INCLUDED


#ifndef CATCH_INTERFACES_TAG_ALIAS_REGISTRY_HPP_INCLUDED
#define CATCH_INTERFACES_TAG_ALIAS_REGISTRY_HPP_INCLUDED

#include <string>

namespace Catch {

    struct TagAlias;

    class ITagAliasRegistry {
    public:
        virtual ~ITagAliasRegistry(); // = default
        // Nullptr if not present
        virtual TagAlias const* find( std::string const& alias ) const = 0;
        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;

        static ITagAliasRegistry const& get();
    };

} // end namespace Catch

#endif // CATCH_INTERFACES_TAG_ALIAS_REGISTRY_HPP_INCLUDED


#ifndef CATCH_INTERFACES_TESTCASE_HPP_INCLUDED
#define CATCH_INTERFACES_TESTCASE_HPP_INCLUDED

#include <vector>

namespace Catch {

    struct TestCaseInfo;
    class TestCaseHandle;
    class IConfig;

    class ITestCaseRegistry {
    public:
        virtual ~ITestCaseRegistry(); // = default
        // TODO: this exists only for adding filenames to test cases -- let's expose this in a saner way later
        virtual std::vector<TestCaseInfo* > const& getAllInfos() const = 0;
        virtual std::vector<TestCaseHandle> const& getAllTests() const = 0;
        virtual std::vector<TestCaseHandle> const& getAllTestsSorted( IConfig const& config ) const = 0;
    };

}

#endif // CATCH_INTERFACES_TESTCASE_HPP_INCLUDED

#endif // CATCH_INTERFACES_ALL_HPP_INCLUDED


#ifndef CATCH_CASE_INSENSITIVE_COMPARISONS_HPP_INCLUDED
#define CATCH_CASE_INSENSITIVE_COMPARISONS_HPP_INCLUDED


namespace Catch {
    namespace Detail {
        //! Provides case-insensitive `op<` semantics when called
        struct CaseInsensitiveLess {
            bool operator()( StringRef lhs,
                             StringRef rhs ) const;
        };

        //! Provides case-insensitive `op==` semantics when called
        struct CaseInsensitiveEqualTo {
            bool operator()( StringRef lhs,
                             StringRef rhs ) const;
        };

    } // namespace Detail
} // namespace Catch

#endif // CATCH_CASE_INSENSITIVE_COMPARISONS_HPP_INCLUDED



/** \file
 * Wrapper for ANDROID_LOGWRITE configuration option
 *
 * We want to default to enabling it when compiled for android, but
 * users of the library should also be able to disable it if they want
 * to.
 */

#ifndef CATCH_CONFIG_ANDROID_LOGWRITE_HPP_INCLUDED
#define CATCH_CONFIG_ANDROID_LOGWRITE_HPP_INCLUDED


#if defined(__ANDROID__)
#    define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
#endif


#if defined( CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE ) && \
    !defined( CATCH_CONFIG_NO_ANDROID_LOGWRITE ) &&      \
    !defined( CATCH_CONFIG_ANDROID_LOGWRITE )
#    define CATCH_CONFIG_ANDROID_LOGWRITE
#endif

#endif // CATCH_CONFIG_ANDROID_LOGWRITE_HPP_INCLUDED



/** \file
 * Wrapper for UNCAUGHT_EXCEPTIONS configuration option
 *
 * For some functionality, Catch2 requires to know whether there is
 * an active exception. Because `std::uncaught_exception` is deprecated
 * in C++17, we want to use `std::uncaught_exceptions` if possible.
 */

#ifndef CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED
#define CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED


#if defined(_MSC_VER)
#  if _MSC_VER >= 1900 // Visual Studio 2015 or newer
#    define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#  endif
#endif


#include <exception>

#if defined(__cpp_lib_uncaught_exceptions) \
    && !defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)

#  define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif // __cpp_lib_uncaught_exceptions


#if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) \
    && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) \
    && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)

#  define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif


#endif // CATCH_CONFIG_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED


#ifndef CATCH_CONSOLE_WIDTH_HPP_INCLUDED
#define CATCH_CONSOLE_WIDTH_HPP_INCLUDED

// This include must be kept so that user's configured value for CONSOLE_WIDTH
// is used before we attempt to provide a default value

#ifndef CATCH_CONFIG_CONSOLE_WIDTH
#define CATCH_CONFIG_CONSOLE_WIDTH 80
#endif

#endif // CATCH_CONSOLE_WIDTH_HPP_INCLUDED


#ifndef CATCH_CONTAINER_NONMEMBERS_HPP_INCLUDED
#define CATCH_CONTAINER_NONMEMBERS_HPP_INCLUDED


#include <cstddef>
#include <initializer_list>

// We want a simple polyfill over `std::empty`, `std::size` and so on
// for C++14 or C++ libraries with incomplete support.
// We also have to handle that MSVC std lib will happily provide these
// under older standards.
#if defined(CATCH_CPP17_OR_GREATER) || defined(_MSC_VER)

// We are already using this header either way, so there shouldn't
// be much additional overhead in including it to get the feature
// test macros
#include <string>

#  if !defined(__cpp_lib_nonmember_container_access)
#      define CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS
#  endif

#else
#define CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS
#endif



namespace Catch {
namespace Detail {

#if defined(CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS)
    template <typename Container>
    constexpr auto empty(Container const& cont) -> decltype(cont.empty()) {
        return cont.empty();
    }
    template <typename T, std::size_t N>
    constexpr bool empty(const T (&)[N]) noexcept {
        // GCC < 7 does not support the const T(&)[] parameter syntax
        // so we have to ignore the length explicitly
        (void)N;
        return false;
    }
    template <typename T>
    constexpr bool empty(std::initializer_list<T> list) noexcept {
        return list.size() > 0;
    }


    template <typename Container>
    constexpr auto size(Container const& cont) -> decltype(cont.size()) {
        return cont.size();
    }
    template <typename T, std::size_t N>
    constexpr std::size_t size(const T(&)[N]) noexcept {
        return N;
    }
#endif // CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS

} // end namespace Detail
} // end namespace Catch



#endif // CATCH_CONTAINER_NONMEMBERS_HPP_INCLUDED


#ifndef CATCH_DEBUG_CONSOLE_HPP_INCLUDED
#define CATCH_DEBUG_CONSOLE_HPP_INCLUDED

#include <string>

namespace Catch {
    void writeToDebugConsole( std::string const& text );
}

#endif // CATCH_DEBUG_CONSOLE_HPP_INCLUDED


#ifndef CATCH_DEBUGGER_HPP_INCLUDED
#define CATCH_DEBUGGER_HPP_INCLUDED


namespace Catch {
    bool isDebuggerActive();
}

#ifdef CATCH_PLATFORM_MAC

    #if defined(__i386__) || defined(__x86_64__)
        #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
    #elif defined(__aarch64__)
        #define CATCH_TRAP() __asm__(".inst 0xd43e0000")
    #elif defined(__POWERPC__)
        #define CATCH_TRAP() __asm__("li r0, 20\nsc\nnop\nli r0, 37\nli r4, 2\nsc\nnop\n" \
        : : : "memory","r0","r3","r4" ) /* NOLINT */
    #endif

#elif defined(CATCH_PLATFORM_IPHONE)

    // use inline assembler
    #if defined(__i386__) || defined(__x86_64__)
        #define CATCH_TRAP()  __asm__("int $3")
    #elif defined(__aarch64__)
        #define CATCH_TRAP()  __asm__(".inst 0xd4200000")
    #elif defined(__arm__) && !defined(__thumb__)
        #define CATCH_TRAP()  __asm__(".inst 0xe7f001f0")
    #elif defined(__arm__) &&  defined(__thumb__)
        #define CATCH_TRAP()  __asm__(".inst 0xde01")
    #endif

#elif defined(CATCH_PLATFORM_LINUX)
    // If we can use inline assembler, do it because this allows us to break
    // directly at the location of the failing check instead of breaking inside
    // raise() called from it, i.e. one stack frame below.
    #if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
        #define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
    #else // Fall back to the generic way.
        #include <signal.h>

        #define CATCH_TRAP() raise(SIGTRAP)
    #endif
#elif defined(_MSC_VER)
    #define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
    extern "C" __declspec(dllimport) void __stdcall DebugBreak();
    #define CATCH_TRAP() DebugBreak()
#endif

#ifndef CATCH_BREAK_INTO_DEBUGGER
    #ifdef CATCH_TRAP
        #define CATCH_BREAK_INTO_DEBUGGER() []{ if( Catch::isDebuggerActive() ) { CATCH_TRAP(); } }()
    #else
        #define CATCH_BREAK_INTO_DEBUGGER() []{}()
    #endif
#endif

#endif // CATCH_DEBUGGER_HPP_INCLUDED


#ifndef CATCH_ENFORCE_HPP_INCLUDED
#define CATCH_ENFORCE_HPP_INCLUDED


#include <exception>

namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    template <typename Ex>
    [[noreturn]]
    void throw_exception(Ex const& e) {
        throw e;
    }
#else // ^^ Exceptions are enabled //  Exceptions are disabled vv
    [[noreturn]]
    void throw_exception(std::exception const& e);
#endif

    [[noreturn]]
    void throw_logic_error(std::string const& msg);
    [[noreturn]]
    void throw_domain_error(std::string const& msg);
    [[noreturn]]
    void throw_runtime_error(std::string const& msg);

} // namespace Catch;

#define CATCH_MAKE_MSG(...) \
    (Catch::ReusableStringStream() << __VA_ARGS__).str()

#define CATCH_INTERNAL_ERROR(...) \
    Catch::throw_logic_error(CATCH_MAKE_MSG( CATCH_INTERNAL_LINEINFO << ": Internal Catch2 error: " << __VA_ARGS__))

#define CATCH_ERROR(...) \
    Catch::throw_domain_error(CATCH_MAKE_MSG( __VA_ARGS__ ))

#define CATCH_RUNTIME_ERROR(...) \
    Catch::throw_runtime_error(CATCH_MAKE_MSG( __VA_ARGS__ ))

#define CATCH_ENFORCE( condition, ... ) \
    do{ if( !(condition) ) CATCH_ERROR( __VA_ARGS__ ); } while(false)


#endif // CATCH_ENFORCE_HPP_INCLUDED


#ifndef CATCH_ENUM_VALUES_REGISTRY_HPP_INCLUDED
#define CATCH_ENUM_VALUES_REGISTRY_HPP_INCLUDED


#include <vector>

namespace Catch {

    namespace Detail {

        Catch::Detail::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values );

        class EnumValuesRegistry : public IMutableEnumValuesRegistry {

            std::vector<Catch::Detail::unique_ptr<EnumInfo>> m_enumInfos;

            EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values) override;
        };

        std::vector<StringRef> parseEnums( StringRef enums );

    } // Detail

} // Catch

#endif // CATCH_ENUM_VALUES_REGISTRY_HPP_INCLUDED


#ifndef CATCH_ERRNO_GUARD_HPP_INCLUDED
#define CATCH_ERRNO_GUARD_HPP_INCLUDED

namespace Catch {

    //! Simple RAII class that stores the value of `errno`
    //! at construction and restores it at destruction.
    class ErrnoGuard {
    public:
        // Keep these outlined to avoid dragging in macros from <cerrno>

        ErrnoGuard();
        ~ErrnoGuard();
    private:
        int m_oldErrno;
    };

}

#endif // CATCH_ERRNO_GUARD_HPP_INCLUDED


#ifndef CATCH_EXCEPTION_TRANSLATOR_REGISTRY_HPP_INCLUDED
#define CATCH_EXCEPTION_TRANSLATOR_REGISTRY_HPP_INCLUDED


#include <vector>
#include <string>

namespace Catch {

    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
    public:
        ~ExceptionTranslatorRegistry() override;
        void registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator );
        std::string translateActiveException() const override;

    private:
        ExceptionTranslators m_translators;
    };
}

#endif // CATCH_EXCEPTION_TRANSLATOR_REGISTRY_HPP_INCLUDED


#ifndef CATCH_FATAL_CONDITION_HANDLER_HPP_INCLUDED
#define CATCH_FATAL_CONDITION_HANDLER_HPP_INCLUDED


#include <cassert>

namespace Catch {

    /**
     * Wrapper for platform-specific fatal error (signals/SEH) handlers
     *
     * Tries to be cooperative with other handlers, and not step over
     * other handlers. This means that unknown structured exceptions
     * are passed on, previous signal handlers are called, and so on.
     *
     * Can only be instantiated once, and assumes that once a signal
     * is caught, the binary will end up terminating. Thus, there
     */
    class FatalConditionHandler {
        bool m_started = false;

        // Install/disengage implementation for specific platform.
        // Should be if-defed to work on current platform, can assume
        // engage-disengage 1:1 pairing.
        void engage_platform();
        void disengage_platform() noexcept;
    public:
        // Should also have platform-specific implementations as needed
        FatalConditionHandler();
        ~FatalConditionHandler();

        void engage() {
            assert(!m_started && "Handler cannot be installed twice.");
            m_started = true;
            engage_platform();
        }

        void disengage() noexcept {
            assert(m_started && "Handler cannot be uninstalled without being installed first");
            m_started = false;
            disengage_platform();
        }
    };

    //! Simple RAII guard for (dis)engaging the FatalConditionHandler
    class FatalConditionHandlerGuard {
        FatalConditionHandler* m_handler;
    public:
        FatalConditionHandlerGuard(FatalConditionHandler* handler):
            m_handler(handler) {
            m_handler->engage();
        }
        ~FatalConditionHandlerGuard() {
            m_handler->disengage();
        }
    };

} // end namespace Catch

#endif // CATCH_FATAL_CONDITION_HANDLER_HPP_INCLUDED


#ifndef CATCH_FLOATING_POINT_HELPERS_HPP_INCLUDED
#define CATCH_FLOATING_POINT_HELPERS_HPP_INCLUDED



#ifndef CATCH_POLYFILLS_HPP_INCLUDED
#define CATCH_POLYFILLS_HPP_INCLUDED

namespace Catch {
    bool isnan(float f);
    bool isnan(double d);
}

#endif // CATCH_POLYFILLS_HPP_INCLUDED

#include <cassert>
#include <cmath>
#include <cstdint>
#include <utility>
#include <limits>

namespace Catch {
    namespace Detail {

        uint32_t convertToBits(float f);
        uint64_t convertToBits(double d);

    } // end namespace Detail



#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic push
    // We do a bunch of direct compensations of floating point numbers,
    // because we know what we are doing and actually do want the direct
    // comparison behaviour.
#    pragma GCC diagnostic ignored "-Wfloat-equal"
#endif

    /**
     * Calculates the ULP distance between two floating point numbers
     *
     * The ULP distance of two floating point numbers is the count of
     * valid floating point numbers representable between them.
     *
     * There are some exceptions between how this function counts the
     * distance, and the interpretation of the standard as implemented.
     * by e.g. `nextafter`. For this function it always holds that:
     * * `(x == y) => ulpDistance(x, y) == 0` (so `ulpDistance(-0, 0) == 0`)
     * * `ulpDistance(maxFinite, INF) == 1`
     * * `ulpDistance(x, -x) == 2 * ulpDistance(x, 0)`
     *
     * \pre `!isnan( lhs )`
     * \pre `!isnan( rhs )`
     * \pre floating point numbers are represented in IEEE-754 format
     */
    template <typename FP>
    uint64_t ulpDistance( FP lhs, FP rhs ) {
        assert( std::numeric_limits<FP>::is_iec559 &&
            "ulpDistance assumes IEEE-754 format for floating point types" );
        assert( !Catch::isnan( lhs ) &&
                "Distance between NaN and number is not meaningful" );
        assert( !Catch::isnan( rhs ) &&
                "Distance between NaN and number is not meaningful" );

        // We want X == Y to imply 0 ULP distance even if X and Y aren't
        // bit-equal (-0 and 0), or X - Y != 0 (same sign infinities).
        if ( lhs == rhs ) { return 0; }

        // We need a properly typed positive zero for type inference.
        static constexpr FP positive_zero{};

        // We want to ensure that +/- 0 is always represented as positive zero
        if ( lhs == positive_zero ) { lhs = positive_zero; }
        if ( rhs == positive_zero ) { rhs = positive_zero; }

        // If arguments have different signs, we can handle them by summing
        // how far are they from 0 each.
        if ( std::signbit( lhs ) != std::signbit( rhs ) ) {
            return ulpDistance( std::abs( lhs ), positive_zero ) +
                   ulpDistance( std::abs( rhs ), positive_zero );
        }

        // When both lhs and rhs are of the same sign, we can just
        // read the numbers bitwise as integers, and then subtract them
        // (assuming IEEE).
        uint64_t lc = Detail::convertToBits( lhs );
        uint64_t rc = Detail::convertToBits( rhs );

        // The ulp distance between two numbers is symmetric, so to avoid
        // dealing with overflows we want the bigger converted number on the lhs
        if ( lc < rc ) {
            std::swap( lc, rc );
        }

        return lc - rc;
    }

#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic pop
#endif


} // end namespace Catch

#endif // CATCH_FLOATING_POINT_HELPERS_HPP_INCLUDED


#ifndef CATCH_GETENV_HPP_INCLUDED
#define CATCH_GETENV_HPP_INCLUDED

namespace Catch {
namespace Detail {

    //! Wrapper over `std::getenv` that compiles on UWP (and always returns nullptr there)
    char const* getEnv(char const* varName);

}
}

#endif // CATCH_GETENV_HPP_INCLUDED


#ifndef CATCH_IS_PERMUTATION_HPP_INCLUDED
#define CATCH_IS_PERMUTATION_HPP_INCLUDED

#include <algorithm>
#include <iterator>

namespace Catch {
    namespace Detail {

        template <typename ForwardIter,
                  typename Sentinel,
                  typename T,
                  typename Comparator>
        ForwardIter find_sentinel( ForwardIter start,
                                   Sentinel sentinel,
                                   T const& value,
                                   Comparator cmp ) {
            while ( start != sentinel ) {
                if ( cmp( *start, value ) ) { break; }
                ++start;
            }
            return start;
        }

        template <typename ForwardIter,
                  typename Sentinel,
                  typename T,
                  typename Comparator>
        std::ptrdiff_t count_sentinel( ForwardIter start,
                                       Sentinel sentinel,
                                       T const& value,
                                       Comparator cmp ) {
            std::ptrdiff_t count = 0;
            while ( start != sentinel ) {
                if ( cmp( *start, value ) ) { ++count; }
                ++start;
            }
            return count;
        }

        template <typename ForwardIter, typename Sentinel>
        std::enable_if_t<!std::is_same<ForwardIter, Sentinel>::value,
                         std::ptrdiff_t>
        sentinel_distance( ForwardIter iter, const Sentinel sentinel ) {
            std::ptrdiff_t dist = 0;
            while ( iter != sentinel ) {
                ++iter;
                ++dist;
            }
            return dist;
        }

        template <typename ForwardIter>
        std::ptrdiff_t sentinel_distance( ForwardIter first,
                                          ForwardIter last ) {
            return std::distance( first, last );
        }

        template <typename ForwardIter1,
                  typename Sentinel1,
                  typename ForwardIter2,
                  typename Sentinel2,
                  typename Comparator>
        bool check_element_counts( ForwardIter1 first_1,
                                   const Sentinel1 end_1,
                                   ForwardIter2 first_2,
                                   const Sentinel2 end_2,
                                   Comparator cmp ) {
            auto cursor = first_1;
            while ( cursor != end_1 ) {
                if ( find_sentinel( first_1, cursor, *cursor, cmp ) ==
                     cursor ) {
                    // we haven't checked this element yet
                    const auto count_in_range_2 =
                        count_sentinel( first_2, end_2, *cursor, cmp );
                    // Not a single instance in 2nd range, so it cannot be a
                    // permutation of 1st range
                    if ( count_in_range_2 == 0 ) { return false; }

                    const auto count_in_range_1 =
                        count_sentinel( cursor, end_1, *cursor, cmp );
                    if ( count_in_range_1 != count_in_range_2 ) {
                        return false;
                    }
                }

                ++cursor;
            }

            return true;
        }

        template <typename ForwardIter1,
                  typename Sentinel1,
                  typename ForwardIter2,
                  typename Sentinel2,
                  typename Comparator>
        bool is_permutation( ForwardIter1 first_1,
                             const Sentinel1 end_1,
                             ForwardIter2 first_2,
                             const Sentinel2 end_2,
                             Comparator cmp ) {
            // TODO: no optimization for stronger iterators, because we would also have to constrain on sentinel vs not sentinel types
            // TODO: Comparator has to be "both sides", e.g. a == b => b == a
            // This skips shared prefix of the two ranges
            while (first_1 != end_1 && first_2 != end_2 && cmp(*first_1, *first_2)) {
                ++first_1;
                ++first_2;
            }

            // We need to handle case where at least one of the ranges has no more elements
            if (first_1 == end_1 || first_2 == end_2) {
                return first_1 == end_1 && first_2 == end_2;
            }

            // pair counting is n**2, so we pay linear walk to compare the sizes first
            auto dist_1 = sentinel_distance( first_1, end_1 );
            auto dist_2 = sentinel_distance( first_2, end_2 );

            if (dist_1 != dist_2) { return false; }

            // Since we do not try to handle stronger iterators pair (e.g.
            // bidir) optimally, the only thing left to do is to check counts in
            // the remaining ranges.
            return check_element_counts( first_1, end_1, first_2, end_2, cmp );
        }

    } // namespace Detail
} // namespace Catch

#endif // CATCH_IS_PERMUTATION_HPP_INCLUDED


#ifndef CATCH_ISTREAM_HPP_INCLUDED
#define CATCH_ISTREAM_HPP_INCLUDED


#include <iosfwd>
#include <cstddef>
#include <ostream>
#include <string>

namespace Catch {

    class IStream {
    public:
        virtual ~IStream(); // = default
        virtual std::ostream& stream() = 0;
        /**
         * Best guess on whether the instance is writing to a console (e.g. via stdout/stderr)
         *
         * This is useful for e.g. Win32 colour support, because the Win32
         * API manipulates console directly, unlike POSIX escape codes,
         * that can be written anywhere.
         *
         * Due to variety of ways to change where the stdout/stderr is
         * _actually_ being written, users should always assume that
         * the answer might be wrong.
         */
        virtual bool isConsole() const { return false; }
    };

    /**
     * Creates a stream wrapper that writes to specific file.
     *
     * Also recognizes 4 special filenames
     * * `-` for stdout
     * * `%stdout` for stdout
     * * `%stderr` for stderr
     * * `%debug` for platform specific debugging output
     *
     * \throws if passed an unrecognized %-prefixed stream
     */
    auto makeStream( std::string const& filename ) -> Detail::unique_ptr<IStream>;

}

#endif // CATCH_STREAM_HPP_INCLUDED


#ifndef CATCH_LEAK_DETECTOR_HPP_INCLUDED
#define CATCH_LEAK_DETECTOR_HPP_INCLUDED

namespace Catch {

    struct LeakDetector {
        LeakDetector();
        ~LeakDetector();
    };

}
#endif // CATCH_LEAK_DETECTOR_HPP_INCLUDED


#ifndef CATCH_LIST_HPP_INCLUDED
#define CATCH_LIST_HPP_INCLUDED


#include <set>
#include <string>


namespace Catch {

    class IEventListener;
    class Config;


    struct ReporterDescription {
        std::string name, description;
    };
    struct ListenerDescription {
        StringRef name;
        std::string description;
    };

    struct TagInfo {
        void add(StringRef spelling);
        std::string all() const;

        std::set<StringRef> spellings;
        std::size_t count = 0;
    };

    bool list( IEventListener& reporter, Config const& config );

} // end namespace Catch

#endif // CATCH_LIST_HPP_INCLUDED


#ifndef CATCH_OUTPUT_REDIRECT_HPP_INCLUDED
#define CATCH_OUTPUT_REDIRECT_HPP_INCLUDED


#include <cstdio>
#include <iosfwd>
#include <string>

namespace Catch {

    class RedirectedStream {
        std::ostream& m_originalStream;
        std::ostream& m_redirectionStream;
        std::streambuf* m_prevBuf;

    public:
        RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream );
        ~RedirectedStream();
    };

    class RedirectedStdOut {
        ReusableStringStream m_rss;
        RedirectedStream m_cout;
    public:
        RedirectedStdOut();
        auto str() const -> std::string;
    };

    // StdErr has two constituent streams in C++, std::cerr and std::clog
    // This means that we need to redirect 2 streams into 1 to keep proper
    // order of writes
    class RedirectedStdErr {
        ReusableStringStream m_rss;
        RedirectedStream m_cerr;
        RedirectedStream m_clog;
    public:
        RedirectedStdErr();
        auto str() const -> std::string;
    };

    class RedirectedStreams {
    public:
        RedirectedStreams(RedirectedStreams const&) = delete;
        RedirectedStreams& operator=(RedirectedStreams const&) = delete;
        RedirectedStreams(RedirectedStreams&&) = delete;
        RedirectedStreams& operator=(RedirectedStreams&&) = delete;

        RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr);
        ~RedirectedStreams();
    private:
        std::string& m_redirectedCout;
        std::string& m_redirectedCerr;
        RedirectedStdOut m_redirectedStdOut;
        RedirectedStdErr m_redirectedStdErr;
    };

#if defined(CATCH_CONFIG_NEW_CAPTURE)

    // Windows's implementation of std::tmpfile is terrible (it tries
    // to create a file inside system folder, thus requiring elevated
    // privileges for the binary), so we have to use tmpnam(_s) and
    // create the file ourselves there.
    class TempFile {
    public:
        TempFile(TempFile const&) = delete;
        TempFile& operator=(TempFile const&) = delete;
        TempFile(TempFile&&) = delete;
        TempFile& operator=(TempFile&&) = delete;

        TempFile();
        ~TempFile();

        std::FILE* getFile();
        std::string getContents();

    private:
        std::FILE* m_file = nullptr;
    #if defined(_MSC_VER)
        char m_buffer[L_tmpnam] = { 0 };
    #endif
    };


    class OutputRedirect {
    public:
        OutputRedirect(OutputRedirect const&) = delete;
        OutputRedirect& operator=(OutputRedirect const&) = delete;
        OutputRedirect(OutputRedirect&&) = delete;
        OutputRedirect& operator=(OutputRedirect&&) = delete;


        OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
        ~OutputRedirect();

    private:
        int m_originalStdout = -1;
        int m_originalStderr = -1;
        TempFile m_stdoutFile;
        TempFile m_stderrFile;
        std::string& m_stdoutDest;
        std::string& m_stderrDest;
    };

#endif

} // end namespace Catch

#endif // CATCH_OUTPUT_REDIRECT_HPP_INCLUDED


#ifndef CATCH_PARSE_NUMBERS_HPP_INCLUDED
#define CATCH_PARSE_NUMBERS_HPP_INCLUDED


#include <string>

namespace Catch {

    /**
     * Parses unsigned int from the input, using provided base
     *
     * Effectively a wrapper around std::stoul but with better error checking
     * e.g. "-1" is rejected, instead of being parsed as UINT_MAX.
     */
    Optional<unsigned int> parseUInt(std::string const& input, int base = 10);
}

#endif // CATCH_PARSE_NUMBERS_HPP_INCLUDED


#ifndef CATCH_REPORTER_REGISTRY_HPP_INCLUDED
#define CATCH_REPORTER_REGISTRY_HPP_INCLUDED


#include <map>
#include <string>
#include <vector>

namespace Catch {

    class IEventListener;
    using IEventListenerPtr = Detail::unique_ptr<IEventListener>;
    class IReporterFactory;
    using IReporterFactoryPtr = Detail::unique_ptr<IReporterFactory>;
    struct ReporterConfig;
    class EventListenerFactory;

    class ReporterRegistry {
        struct ReporterRegistryImpl;
        Detail::unique_ptr<ReporterRegistryImpl> m_impl;

    public:
        ReporterRegistry();
        ~ReporterRegistry(); // = default;

        IEventListenerPtr create( std::string const& name,
                                  ReporterConfig&& config ) const;

        void registerReporter( std::string const& name,
                               IReporterFactoryPtr factory );

        void
        registerListener( Detail::unique_ptr<EventListenerFactory> factory );

        std::map<std::string,
                 IReporterFactoryPtr,
                 Detail::CaseInsensitiveLess> const&
        getFactories() const;

        std::vector<Detail::unique_ptr<EventListenerFactory>> const&
        getListeners() const;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_REGISTRY_HPP_INCLUDED


#ifndef CATCH_RUN_CONTEXT_HPP_INCLUDED
#define CATCH_RUN_CONTEXT_HPP_INCLUDED



#ifndef CATCH_TEST_CASE_TRACKER_HPP_INCLUDED
#define CATCH_TEST_CASE_TRACKER_HPP_INCLUDED


#include <string>
#include <vector>

namespace Catch {
namespace TestCaseTracking {

    struct NameAndLocation {
        std::string name;
        SourceLineInfo location;

        NameAndLocation( std::string&& _name, SourceLineInfo const& _location );
        friend bool operator==(NameAndLocation const& lhs, NameAndLocation const& rhs) {
            // This is a very cheap check that should have a very high hit rate.
            // If we get to SourceLineInfo::operator==, we will redo it, but the
            // cost of repeating is trivial at that point (we will be paying
            // multiple strcmp/memcmps at that point).
            if ( lhs.location.line != rhs.location.line ) { return false; }
            return lhs.name == rhs.name && lhs.location == rhs.location;
        }
        friend bool operator!=(NameAndLocation const& lhs,
                               NameAndLocation const& rhs) {
            return !( lhs == rhs );
        }
    };

    /**
     * This is a variant of `NameAndLocation` that does not own the name string
     *
     * This avoids extra allocations when trying to locate a tracker by its
     * name and location, as long as we make sure that trackers only keep
     * around the owning variant.
     */
    struct NameAndLocationRef {
        StringRef name;
        SourceLineInfo location;

        constexpr NameAndLocationRef( StringRef name_,
                                      SourceLineInfo location_ ):
            name( name_ ), location( location_ ) {}

        friend bool operator==( NameAndLocation const& lhs,
                                NameAndLocationRef const& rhs ) {
            // This is a very cheap check that should have a very high hit rate.
            // If we get to SourceLineInfo::operator==, we will redo it, but the
            // cost of repeating is trivial at that point (we will be paying
            // multiple strcmp/memcmps at that point).
            if ( lhs.location.line != rhs.location.line ) { return false; }
            return StringRef( lhs.name ) == rhs.name &&
                   lhs.location == rhs.location;
        }
        friend bool operator==( NameAndLocationRef const& lhs,
                                NameAndLocation const& rhs ) {
            return rhs == lhs;
        }
    };

    class ITracker;

    using ITrackerPtr = Catch::Detail::unique_ptr<ITracker>;

    class ITracker {
        NameAndLocation m_nameAndLocation;

        using Children = std::vector<ITrackerPtr>;

    protected:
        enum CycleState {
            NotStarted,
            Executing,
            ExecutingChildren,
            NeedsAnotherRun,
            CompletedSuccessfully,
            Failed
        };

        ITracker* m_parent = nullptr;
        Children m_children;
        CycleState m_runState = NotStarted;

    public:
        ITracker( NameAndLocation&& nameAndLoc, ITracker* parent ):
            m_nameAndLocation( CATCH_MOVE(nameAndLoc) ),
            m_parent( parent )
        {}


        // static queries
        NameAndLocation const& nameAndLocation() const {
            return m_nameAndLocation;
        }
        ITracker* parent() const {
            return m_parent;
        }

        virtual ~ITracker(); // = default


        // dynamic queries

        //! Returns true if tracker run to completion (successfully or not)
        virtual bool isComplete() const = 0;
        //! Returns true if tracker run to completion successfully
        bool isSuccessfullyCompleted() const {
            return m_runState == CompletedSuccessfully;
        }
        //! Returns true if tracker has started but hasn't been completed
        bool isOpen() const;
        //! Returns true iff tracker has started
        bool hasStarted() const;

        // actions
        virtual void close() = 0; // Successfully complete
        virtual void fail() = 0;
        void markAsNeedingAnotherRun();

        //! Register a nested ITracker
        void addChild( ITrackerPtr&& child );
        /**
         * Returns ptr to specific child if register with this tracker.
         *
         * Returns nullptr if not found.
         */
        ITracker* findChild( NameAndLocationRef const& nameAndLocation );
        //! Have any children been added?
        bool hasChildren() const {
            return !m_children.empty();
        }


        //! Marks tracker as executing a child, doing se recursively up the tree
        void openChild();

        /**
         * Returns true if the instance is a section tracker
         *
         * Subclasses should override to true if they are, replaces RTTI
         * for internal debug checks.
         */
        virtual bool isSectionTracker() const;
        /**
         * Returns true if the instance is a generator tracker
         *
         * Subclasses should override to true if they are, replaces RTTI
         * for internal debug checks.
         */
        virtual bool isGeneratorTracker() const;
    };

    class TrackerContext {

        enum RunState {
            NotStarted,
            Executing,
            CompletedCycle
        };

        ITrackerPtr m_rootTracker;
        ITracker* m_currentTracker = nullptr;
        RunState m_runState = NotStarted;

    public:

        ITracker& startRun();

        void startCycle() {
            m_currentTracker = m_rootTracker.get();
            m_runState = Executing;
        }
        void completeCycle();

        bool completedCycle() const;
        ITracker& currentTracker() { return *m_currentTracker; }
        void setCurrentTracker( ITracker* tracker );
    };

    class TrackerBase : public ITracker {
    protected:

        TrackerContext& m_ctx;

    public:
        TrackerBase( NameAndLocation&& nameAndLocation, TrackerContext& ctx, ITracker* parent );

        bool isComplete() const override;

        void open();

        void close() override;
        void fail() override;

    private:
        void moveToParent();
        void moveToThis();
    };

    class SectionTracker : public TrackerBase {
        std::vector<StringRef> m_filters;
        // Note that lifetime-wise we piggy back off the name stored in the `ITracker` parent`.
        // Currently it allocates owns the name, so this is safe. If it is later refactored
        // to not own the name, the name still has to outlive the `ITracker` parent, so
        // this should still be safe.
        StringRef m_trimmed_name;
    public:
        SectionTracker( NameAndLocation&& nameAndLocation, TrackerContext& ctx, ITracker* parent );

        bool isSectionTracker() const override;

        bool isComplete() const override;

        static SectionTracker& acquire( TrackerContext& ctx, NameAndLocationRef const& nameAndLocation );

        void tryOpen();

        void addInitialFilters( std::vector<std::string> const& filters );
        void addNextFilters( std::vector<StringRef> const& filters );
        //! Returns filters active in this tracker
        std::vector<StringRef> const& getFilters() const { return m_filters; }
        //! Returns whitespace-trimmed name of the tracked section
        StringRef trimmedName() const;
    };

} // namespace TestCaseTracking

using TestCaseTracking::ITracker;
using TestCaseTracking::TrackerContext;
using TestCaseTracking::SectionTracker;

} // namespace Catch

#endif // CATCH_TEST_CASE_TRACKER_HPP_INCLUDED

#include <string>

namespace Catch {

    class IGeneratorTracker;
    class IConfig;
    class IEventListener;
    using IEventListenerPtr = Detail::unique_ptr<IEventListener>;

    ///////////////////////////////////////////////////////////////////////////

    class RunContext final : public IResultCapture {

    public:
        RunContext( RunContext const& ) = delete;
        RunContext& operator =( RunContext const& ) = delete;

        explicit RunContext( IConfig const* _config, IEventListenerPtr&& reporter );

        ~RunContext() override;

        Totals runTest(TestCaseHandle const& testCase);

    public: // IResultCapture

        // Assertion handlers
        void handleExpr
                (   AssertionInfo const& info,
                    ITransientExpression const& expr,
                    AssertionReaction& reaction ) override;
        void handleMessage
                (   AssertionInfo const& info,
                    ResultWas::OfType resultType,
                    StringRef message,
                    AssertionReaction& reaction ) override;
        void handleUnexpectedExceptionNotThrown
                (   AssertionInfo const& info,
                    AssertionReaction& reaction ) override;
        void handleUnexpectedInflightException
                (   AssertionInfo const& info,
                    std::string&& message,
                    AssertionReaction& reaction ) override;
        void handleIncomplete
                (   AssertionInfo const& info ) override;
        void handleNonExpr
                (   AssertionInfo const &info,
                    ResultWas::OfType resultType,
                    AssertionReaction &reaction ) override;

        void notifyAssertionStarted( AssertionInfo const& info ) override;
        bool sectionStarted( StringRef sectionName,
                             SourceLineInfo const& sectionLineInfo,
                             Counts& assertions ) override;

        void sectionEnded( SectionEndInfo&& endInfo ) override;
        void sectionEndedEarly( SectionEndInfo&& endInfo ) override;

        IGeneratorTracker*
        acquireGeneratorTracker( StringRef generatorName,
                                 SourceLineInfo const& lineInfo ) override;
        IGeneratorTracker* createGeneratorTracker(
            StringRef generatorName,
            SourceLineInfo lineInfo,
            Generators::GeneratorBasePtr&& generator ) override;


        void benchmarkPreparing( StringRef name ) override;
        void benchmarkStarting( BenchmarkInfo const& info ) override;
        void benchmarkEnded( BenchmarkStats<> const& stats ) override;
        void benchmarkFailed( StringRef error ) override;

        void pushScopedMessage( MessageInfo const& message ) override;
        void popScopedMessage( MessageInfo const& message ) override;

        void emplaceUnscopedMessage( MessageBuilder&& builder ) override;

        std::string getCurrentTestName() const override;

        const AssertionResult* getLastResult() const override;

        void exceptionEarlyReported() override;

        void handleFatalErrorCondition( StringRef message ) override;

        bool lastAssertionPassed() override;

        void assertionPassed() override;

    public:
        // !TBD We need to do this another way!
        bool aborting() const;

    private:

        void runCurrentTest( std::string& redirectedCout, std::string& redirectedCerr );
        void invokeActiveTestCase();

        void resetAssertionInfo();
        bool testForMissingAssertions( Counts& assertions );

        void assertionEnded( AssertionResult&& result );
        void reportExpr
                (   AssertionInfo const &info,
                    ResultWas::OfType resultType,
                    ITransientExpression const *expr,
                    bool negated );

        void populateReaction( AssertionReaction& reaction );

    private:

        void handleUnfinishedSections();

        TestRunInfo m_runInfo;
        TestCaseHandle const* m_activeTestCase = nullptr;
        ITracker* m_testCaseTracker = nullptr;
        Optional<AssertionResult> m_lastResult;

        IConfig const* m_config;
        Totals m_totals;
        IEventListenerPtr m_reporter;
        std::vector<MessageInfo> m_messages;
        std::vector<ScopedMessage> m_messageScopes; /* Keeps owners of so-called unscoped messages. */
        AssertionInfo m_lastAssertionInfo;
        std::vector<SectionEndInfo> m_unfinishedSections;
        std::vector<ITracker*> m_activeSections;
        TrackerContext m_trackerContext;
        FatalConditionHandler m_fatalConditionhandler;
        bool m_lastAssertionPassed = false;
        bool m_shouldReportUnexpected = true;
        bool m_includeSuccessfulResults;
    };

    void seedRng(IConfig const& config);
    unsigned int rngSeed();
} // end namespace Catch

#endif // CATCH_RUN_CONTEXT_HPP_INCLUDED


#ifndef CATCH_SHARDING_HPP_INCLUDED
#define CATCH_SHARDING_HPP_INCLUDED


#include <cmath>
#include <algorithm>

namespace Catch {

    template<typename Container>
    Container createShard(Container const& container, std::size_t const shardCount, std::size_t const shardIndex) {
        assert(shardCount > shardIndex);

        if (shardCount == 1) {
            return container;
        }

        const std::size_t totalTestCount = container.size();

        const std::size_t shardSize = totalTestCount / shardCount;
        const std::size_t leftoverTests = totalTestCount % shardCount;

        const std::size_t startIndex = shardIndex * shardSize + (std::min)(shardIndex, leftoverTests);
        const std::size_t endIndex = (shardIndex + 1) * shardSize + (std::min)(shardIndex + 1, leftoverTests);

        auto startIterator = std::next(container.begin(), static_cast<std::ptrdiff_t>(startIndex));
        auto endIterator = std::next(container.begin(), static_cast<std::ptrdiff_t>(endIndex));

        return Container(startIterator, endIterator);
    }

}

#endif // CATCH_SHARDING_HPP_INCLUDED


#ifndef CATCH_SINGLETONS_HPP_INCLUDED
#define CATCH_SINGLETONS_HPP_INCLUDED

namespace Catch {

    struct ISingleton {
        virtual ~ISingleton(); // = default
    };


    void addSingleton( ISingleton* singleton );
    void cleanupSingletons();


    template<typename SingletonImplT, typename InterfaceT = SingletonImplT, typename MutableInterfaceT = InterfaceT>
    class Singleton : SingletonImplT, public ISingleton {

        static auto getInternal() -> Singleton* {
            static Singleton* s_instance = nullptr;
            if( !s_instance ) {
                s_instance = new Singleton;
                addSingleton( s_instance );
            }
            return s_instance;
        }

    public:
        static auto get() -> InterfaceT const& {
            return *getInternal();
        }
        static auto getMutable() -> MutableInterfaceT& {
            return *getInternal();
        }
    };

} // namespace Catch

#endif // CATCH_SINGLETONS_HPP_INCLUDED


#ifndef CATCH_STARTUP_EXCEPTION_REGISTRY_HPP_INCLUDED
#define CATCH_STARTUP_EXCEPTION_REGISTRY_HPP_INCLUDED


#include <vector>
#include <exception>

namespace Catch {

    class StartupExceptionRegistry {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    public:
        void add(std::exception_ptr const& exception) noexcept;
        std::vector<std::exception_ptr> const& getExceptions() const noexcept;
    private:
        std::vector<std::exception_ptr> m_exceptions;
#endif
    };

} // end namespace Catch

#endif // CATCH_STARTUP_EXCEPTION_REGISTRY_HPP_INCLUDED



#ifndef CATCH_STDSTREAMS_HPP_INCLUDED
#define CATCH_STDSTREAMS_HPP_INCLUDED

#include <iosfwd>

namespace Catch {

    std::ostream& cout();
    std::ostream& cerr();
    std::ostream& clog();

} // namespace Catch

#endif


#ifndef CATCH_STRING_MANIP_HPP_INCLUDED
#define CATCH_STRING_MANIP_HPP_INCLUDED


#include <cstdint>
#include <string>
#include <iosfwd>
#include <vector>

namespace Catch {

    bool startsWith( std::string const& s, std::string const& prefix );
    bool startsWith( StringRef s, char prefix );
    bool endsWith( std::string const& s, std::string const& suffix );
    bool endsWith( std::string const& s, char suffix );
    bool contains( std::string const& s, std::string const& infix );
    void toLowerInPlace( std::string& s );
    std::string toLower( std::string const& s );
    char toLower( char c );
    //! Returns a new string without whitespace at the start/end
    std::string trim( std::string const& str );
    //! Returns a substring of the original ref without whitespace. Beware lifetimes!
    StringRef trim(StringRef ref);

    // !!! Be aware, returns refs into original string - make sure original string outlives them
    std::vector<StringRef> splitStringRef( StringRef str, char delimiter );
    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );

    /**
     * Helper for streaming a "count [maybe-plural-of-label]" human-friendly string
     *
     * Usage example:
     * ```cpp
     * std::cout << "Found " << pluralise(count, "error") << '\n';
     * ```
     *
     * **Important:** The provided string must outlive the instance
     */
    class pluralise {
        std::uint64_t m_count;
        StringRef m_label;

    public:
        constexpr pluralise(std::uint64_t count, StringRef label):
            m_count(count),
            m_label(label)
        {}

        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
    };
}

#endif // CATCH_STRING_MANIP_HPP_INCLUDED


#ifndef CATCH_TAG_ALIAS_REGISTRY_HPP_INCLUDED
#define CATCH_TAG_ALIAS_REGISTRY_HPP_INCLUDED


#include <map>
#include <string>

namespace Catch {
    struct SourceLineInfo;

    class TagAliasRegistry : public ITagAliasRegistry {
    public:
        ~TagAliasRegistry() override;
        TagAlias const* find( std::string const& alias ) const override;
        std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
        void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );

    private:
        std::map<std::string, TagAlias> m_registry;
    };

} // end namespace Catch

#endif // CATCH_TAG_ALIAS_REGISTRY_HPP_INCLUDED


#ifndef CATCH_TEST_CASE_INFO_HASHER_HPP_INCLUDED
#define CATCH_TEST_CASE_INFO_HASHER_HPP_INCLUDED

#include <cstdint>

namespace Catch {

    struct TestCaseInfo;

    class TestCaseInfoHasher {
    public:
        using hash_t = std::uint64_t;
        TestCaseInfoHasher( hash_t seed );
        uint32_t operator()( TestCaseInfo const& t ) const;

    private:
        hash_t m_seed;
    };

} // namespace Catch

#endif /* CATCH_TEST_CASE_INFO_HASHER_HPP_INCLUDED */


#ifndef CATCH_TEST_CASE_REGISTRY_IMPL_HPP_INCLUDED
#define CATCH_TEST_CASE_REGISTRY_IMPL_HPP_INCLUDED


#include <vector>

namespace Catch {

    class IConfig;
    class ITestInvoker;
    class TestCaseHandle;
    class TestSpec;

    std::vector<TestCaseHandle> sortTests( IConfig const& config, std::vector<TestCaseHandle> const& unsortedTestCases );

    bool isThrowSafe( TestCaseHandle const& testCase, IConfig const& config );

    std::vector<TestCaseHandle> filterTests( std::vector<TestCaseHandle> const& testCases, TestSpec const& testSpec, IConfig const& config );
    std::vector<TestCaseHandle> const& getAllTestCasesSorted( IConfig const& config );

    class TestRegistry : public ITestCaseRegistry {
    public:
        ~TestRegistry() override = default;

        void registerTest( Detail::unique_ptr<TestCaseInfo> testInfo, Detail::unique_ptr<ITestInvoker> testInvoker );

        std::vector<TestCaseInfo*> const& getAllInfos() const override;
        std::vector<TestCaseHandle> const& getAllTests() const override;
        std::vector<TestCaseHandle> const& getAllTestsSorted( IConfig const& config ) const override;

    private:
        std::vector<Detail::unique_ptr<TestCaseInfo>> m_owned_test_infos;
        // Keeps a materialized vector for `getAllInfos`.
        // We should get rid of that eventually (see interface note)
        std::vector<TestCaseInfo*> m_viewed_test_infos;

        std::vector<Detail::unique_ptr<ITestInvoker>> m_invokers;
        std::vector<TestCaseHandle> m_handles;
        mutable TestRunOrder m_currentSortOrder = TestRunOrder::Declared;
        mutable std::vector<TestCaseHandle> m_sortedFunctions;
    };

    ///////////////////////////////////////////////////////////////////////////


} // end namespace Catch


#endif // CATCH_TEST_CASE_REGISTRY_IMPL_HPP_INCLUDED


#ifndef CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
#define CATCH_TEST_SPEC_PARSER_HPP_INCLUDED

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif


#include <vector>
#include <string>

namespace Catch {

    class ITagAliasRegistry;

    class TestSpecParser {
        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
        Mode m_mode = None;
        Mode lastMode = None;
        bool m_exclusion = false;
        std::size_t m_pos = 0;
        std::size_t m_realPatternPos = 0;
        std::string m_arg;
        std::string m_substring;
        std::string m_patternName;
        std::vector<std::size_t> m_escapeChars;
        TestSpec::Filter m_currentFilter;
        TestSpec m_testSpec;
        ITagAliasRegistry const* m_tagAliases = nullptr;

    public:
        TestSpecParser( ITagAliasRegistry const& tagAliases );

        TestSpecParser& parse( std::string const& arg );
        TestSpec testSpec();

    private:
        bool visitChar( char c );
        void startNewMode( Mode mode );
        bool processNoneChar( char c );
        void processNameChar( char c );
        bool processOtherChar( char c );
        void endMode();
        void escape();
        bool isControlChar( char c ) const;
        void saveLastMode();
        void revertBackToLastMode();
        void addFilter();
        bool separate();

        // Handles common preprocessing of the pattern for name/tag patterns
        std::string preprocessPattern();
        // Adds the current pattern as a test name
        void addNamePattern();
        // Adds the current pattern as a tag
        void addTagPattern();

        inline void addCharToPattern(char c) {
            m_substring += c;
            m_patternName += c;
            m_realPatternPos++;
        }

    };

} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

#endif // CATCH_TEST_SPEC_PARSER_HPP_INCLUDED


#ifndef CATCH_TEXTFLOW_HPP_INCLUDED
#define CATCH_TEXTFLOW_HPP_INCLUDED

#include <cassert>
#include <string>
#include <vector>

namespace Catch {
    namespace TextFlow {

        class Columns;

        /**
         * Represents a column of text with specific width and indentation
         *
         * When written out to a stream, it will perform linebreaking
         * of the provided text so that the written lines fit within
         * target width.
         */
        class Column {
            // String to be written out
            std::string m_string;
            // Width of the column for linebreaking
            size_t m_width = CATCH_CONFIG_CONSOLE_WIDTH - 1;
            // Indentation of other lines (including first if initial indent is unset)
            size_t m_indent = 0;
            // Indentation of the first line
            size_t m_initialIndent = std::string::npos;

        public:
            /**
             * Iterates "lines" in `Column` and return sthem
             */
            class const_iterator {
                friend Column;
                struct EndTag {};

                Column const& m_column;
                // Where does the current line start?
                size_t m_lineStart = 0;
                // How long should the current line be?
                size_t m_lineLength = 0;
                // How far have we checked the string to iterate?
                size_t m_parsedTo = 0;
                // Should a '-' be appended to the line?
                bool m_addHyphen = false;

                const_iterator( Column const& column, EndTag ):
                    m_column( column ), m_lineStart( m_column.m_string.size() ) {}

                // Calculates the length of the current line
                void calcLength();

                // Returns current indentation width
                size_t indentSize() const;

                // Creates an indented and (optionally) suffixed string from
                // current iterator position, indentation and length.
                std::string addIndentAndSuffix( size_t position,
                                                size_t length ) const;

            public:
                using difference_type = std::ptrdiff_t;
                using value_type = std::string;
                using pointer = value_type*;
                using reference = value_type&;
                using iterator_category = std::forward_iterator_tag;

                explicit const_iterator( Column const& column );

                std::string operator*() const;

                const_iterator& operator++();
                const_iterator operator++( int );

                bool operator==( const_iterator const& other ) const {
                    return m_lineStart == other.m_lineStart && &m_column == &other.m_column;
                }
                bool operator!=( const_iterator const& other ) const {
                    return !operator==( other );
                }
            };
            using iterator = const_iterator;

            explicit Column( std::string const& text ): m_string( text ) {}

            Column& width( size_t newWidth ) {
                assert( newWidth > 0 );
                m_width = newWidth;
                return *this;
            }
            Column& indent( size_t newIndent ) {
                m_indent = newIndent;
                return *this;
            }
            Column& initialIndent( size_t newIndent ) {
                m_initialIndent = newIndent;
                return *this;
            }

            size_t width() const { return m_width; }
            const_iterator begin() const { return const_iterator( *this ); }
            const_iterator end() const { return { *this, const_iterator::EndTag{} }; }

            friend std::ostream& operator<<( std::ostream& os,
                                             Column const& col );

            Columns operator+( Column const& other );
        };

        //! Creates a column that serves as an empty space of specific width
        Column Spacer( size_t spaceWidth );

        class Columns {
            std::vector<Column> m_columns;

        public:
            class iterator {
                friend Columns;
                struct EndTag {};

                std::vector<Column> const& m_columns;
                std::vector<Column::const_iterator> m_iterators;
                size_t m_activeIterators;

                iterator( Columns const& columns, EndTag );

            public:
                using difference_type = std::ptrdiff_t;
                using value_type = std::string;
                using pointer = value_type*;
                using reference = value_type&;
                using iterator_category = std::forward_iterator_tag;

                explicit iterator( Columns const& columns );

                auto operator==( iterator const& other ) const -> bool {
                    return m_iterators == other.m_iterators;
                }
                auto operator!=( iterator const& other ) const -> bool {
                    return m_iterators != other.m_iterators;
                }
                std::string operator*() const;
                iterator& operator++();
                iterator operator++( int );
            };
            using const_iterator = iterator;

            iterator begin() const { return iterator( *this ); }
            iterator end() const { return { *this, iterator::EndTag() }; }

            Columns& operator+=( Column const& col );
            Columns operator+( Column const& col );

            friend std::ostream& operator<<( std::ostream& os,
                                             Columns const& cols );
        };

    } // namespace TextFlow
} // namespace Catch
#endif // CATCH_TEXTFLOW_HPP_INCLUDED


#ifndef CATCH_TO_STRING_HPP_INCLUDED
#define CATCH_TO_STRING_HPP_INCLUDED

#include <string>


namespace Catch {
    template <typename T>
    std::string to_string(T const& t) {
#if defined(CATCH_CONFIG_CPP11_TO_STRING)
        return std::to_string(t);
#else
        ReusableStringStream rss;
        rss << t;
        return rss.str();
#endif
    }
} // end namespace Catch

#endif // CATCH_TO_STRING_HPP_INCLUDED


#ifndef CATCH_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED
#define CATCH_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED

namespace Catch {
    bool uncaught_exceptions();
} // end namespace Catch

#endif // CATCH_UNCAUGHT_EXCEPTIONS_HPP_INCLUDED


#ifndef CATCH_XMLWRITER_HPP_INCLUDED
#define CATCH_XMLWRITER_HPP_INCLUDED


#include <iosfwd>
#include <vector>

namespace Catch {
    enum class XmlFormatting {
        None = 0x00,
        Indent = 0x01,
        Newline = 0x02,
    };

    XmlFormatting operator | (XmlFormatting lhs, XmlFormatting rhs);
    XmlFormatting operator & (XmlFormatting lhs, XmlFormatting rhs);

    /**
     * Helper for XML-encoding text (escaping angle brackets, quotes, etc)
     *
     * Note: doesn't take ownership of passed strings, and thus the
     *       encoded string must outlive the encoding instance.
     */
    class XmlEncode {
    public:
        enum ForWhat { ForTextNodes, ForAttributes };

        XmlEncode( StringRef str, ForWhat forWhat = ForTextNodes );

        void encodeTo( std::ostream& os ) const;

        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );

    private:
        StringRef m_str;
        ForWhat m_forWhat;
    };

    class XmlWriter {
    public:

        class ScopedElement {
        public:
            ScopedElement( XmlWriter* writer, XmlFormatting fmt );

            ScopedElement( ScopedElement&& other ) noexcept;
            ScopedElement& operator=( ScopedElement&& other ) noexcept;

            ~ScopedElement();

            ScopedElement&
            writeText( StringRef text,
                       XmlFormatting fmt = XmlFormatting::Newline |
                                           XmlFormatting::Indent );

            ScopedElement& writeAttribute( StringRef name,
                                           StringRef attribute );
            template <typename T,
                      // Without this SFINAE, this overload is a better match
                      // for `std::string`, `char const*`, `char const[N]` args.
                      // While it would still work, it would cause code bloat
                      // and multiple iteration over the strings
                      typename = typename std::enable_if_t<
                          !std::is_convertible<T, StringRef>::value>>
            ScopedElement& writeAttribute( StringRef name,
                                           T const& attribute ) {
                m_writer->writeAttribute( name, attribute );
                return *this;
            }

        private:
            XmlWriter* m_writer = nullptr;
            XmlFormatting m_fmt;
        };

        XmlWriter( std::ostream& os );
        ~XmlWriter();

        XmlWriter( XmlWriter const& ) = delete;
        XmlWriter& operator=( XmlWriter const& ) = delete;

        XmlWriter& startElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);

        ScopedElement scopedElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);

        XmlWriter& endElement(XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);

        //! The attribute content is XML-encoded
        XmlWriter& writeAttribute( StringRef name, StringRef attribute );

        //! Writes the attribute as "true/false"
        XmlWriter& writeAttribute( StringRef name, bool attribute );

        //! The attribute content is XML-encoded
        XmlWriter& writeAttribute( StringRef name, char const* attribute );

        //! The attribute value must provide op<<(ostream&, T). The resulting
        //! serialization is XML-encoded
        template <typename T,
                  // Without this SFINAE, this overload is a better match
                  // for `std::string`, `char const*`, `char const[N]` args.
                  // While it would still work, it would cause code bloat
                  // and multiple iteration over the strings
                  typename = typename std::enable_if_t<
                      !std::is_convertible<T, StringRef>::value>>
        XmlWriter& writeAttribute( StringRef name, T const& attribute ) {
            ReusableStringStream rss;
            rss << attribute;
            return writeAttribute( name, rss.str() );
        }

        //! Writes escaped `text` in a element
        XmlWriter& writeText( StringRef text,
                              XmlFormatting fmt = XmlFormatting::Newline |
                                                  XmlFormatting::Indent );

        //! Writes XML comment as "<!-- text -->"
        XmlWriter& writeComment( StringRef text,
                                 XmlFormatting fmt = XmlFormatting::Newline |
                                                     XmlFormatting::Indent );

        void writeStylesheetRef( StringRef url );

        void ensureTagClosed();

    private:

        void applyFormatting(XmlFormatting fmt);

        void writeDeclaration();

        void newlineIfNecessary();

        bool m_tagIsOpen = false;
        bool m_needsNewline = false;
        std::vector<std::string> m_tags;
        std::string m_indent;
        std::ostream& m_os;
    };

}

#endif // CATCH_XMLWRITER_HPP_INCLUDED


/** \file
 * This is a convenience header for Catch2's Matcher support. It includes
 * **all** of Catch2 headers related to matchers.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of increased compilation times.
 *
 * When a new header is added to either the `matchers` folder, or to
 * the corresponding internal subfolder, it should be added here.
 */

#ifndef CATCH_MATCHERS_ALL_HPP_INCLUDED
#define CATCH_MATCHERS_ALL_HPP_INCLUDED



#ifndef CATCH_MATCHERS_HPP_INCLUDED
#define CATCH_MATCHERS_HPP_INCLUDED



#ifndef CATCH_MATCHERS_IMPL_HPP_INCLUDED
#define CATCH_MATCHERS_IMPL_HPP_INCLUDED


#include <string>

namespace Catch {

    template<typename ArgT, typename MatcherT>
    class MatchExpr : public ITransientExpression {
        ArgT && m_arg;
        MatcherT const& m_matcher;
    public:
        MatchExpr( ArgT && arg, MatcherT const& matcher )
        :   ITransientExpression{ true, matcher.match( arg ) }, // not forwarding arg here on purpose
            m_arg( CATCH_FORWARD(arg) ),
            m_matcher( matcher )
        {}

        void streamReconstructedExpression( std::ostream& os ) const override {
            os << Catch::Detail::stringify( m_arg )
               << ' '
               << m_matcher.toString();
        }
    };

    namespace Matchers {
        template <typename ArgT>
        class MatcherBase;
    }

    using StringMatcher = Matchers::MatcherBase<std::string>;

    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher );

    template<typename ArgT, typename MatcherT>
    auto makeMatchExpr( ArgT && arg, MatcherT const& matcher ) -> MatchExpr<ArgT, MatcherT> {
        return MatchExpr<ArgT, MatcherT>( CATCH_FORWARD(arg), matcher );
    }

} // namespace Catch


///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        INTERNAL_CATCH_TRY { \
            catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher ) ); \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )


///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__ ); \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( exceptionType const& ex ) { \
                catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher ) ); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleUnexpectedInflightException(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )


#endif // CATCH_MATCHERS_IMPL_HPP_INCLUDED

#include <string>
#include <vector>

namespace Catch {
namespace Matchers {

    class MatcherUntypedBase {
    public:
        MatcherUntypedBase() = default;

        MatcherUntypedBase(MatcherUntypedBase const&) = default;
        MatcherUntypedBase(MatcherUntypedBase&&) = default;

        MatcherUntypedBase& operator = (MatcherUntypedBase const&) = delete;
        MatcherUntypedBase& operator = (MatcherUntypedBase&&) = delete;

        std::string toString() const;

    protected:
        virtual ~MatcherUntypedBase(); // = default;
        virtual std::string describe() const = 0;
        mutable std::string m_cachedToString;
    };


    template<typename T>
    class MatcherBase : public MatcherUntypedBase {
    public:
        virtual bool match( T const& arg ) const = 0;
    };

    namespace Detail {

        template<typename ArgT>
        class MatchAllOf final : public MatcherBase<ArgT> {
            std::vector<MatcherBase<ArgT> const*> m_matchers;

        public:
            MatchAllOf() = default;
            MatchAllOf(MatchAllOf const&) = delete;
            MatchAllOf& operator=(MatchAllOf const&) = delete;
            MatchAllOf(MatchAllOf&&) = default;
            MatchAllOf& operator=(MatchAllOf&&) = default;


            bool match( ArgT const& arg ) const override {
                for( auto matcher : m_matchers ) {
                    if (!matcher->match(arg))
                        return false;
                }
                return true;
            }
            std::string describe() const override {
                std::string description;
                description.reserve( 4 + m_matchers.size()*32 );
                description += "( ";
                bool first = true;
                for( auto matcher : m_matchers ) {
                    if( first )
                        first = false;
                    else
                        description += " and ";
                    description += matcher->toString();
                }
                description += " )";
                return description;
            }

            friend MatchAllOf operator&& (MatchAllOf&& lhs, MatcherBase<ArgT> const& rhs) {
                lhs.m_matchers.push_back(&rhs);
                return CATCH_MOVE(lhs);
            }
            friend MatchAllOf operator&& (MatcherBase<ArgT> const& lhs, MatchAllOf&& rhs) {
                rhs.m_matchers.insert(rhs.m_matchers.begin(), &lhs);
                return CATCH_MOVE(rhs);
            }
        };

        //! lvalue overload is intentionally deleted, users should
        //! not be trying to compose stored composition matchers
        template<typename ArgT>
        MatchAllOf<ArgT> operator&& (MatchAllOf<ArgT> const& lhs, MatcherBase<ArgT> const& rhs) = delete;
        //! lvalue overload is intentionally deleted, users should
        //! not be trying to compose stored composition matchers
        template<typename ArgT>
        MatchAllOf<ArgT> operator&& (MatcherBase<ArgT> const& lhs, MatchAllOf<ArgT> const& rhs) = delete;

        template<typename ArgT>
        class MatchAnyOf final : public MatcherBase<ArgT> {
            std::vector<MatcherBase<ArgT> const*> m_matchers;
        public:
            MatchAnyOf() = default;
            MatchAnyOf(MatchAnyOf const&) = delete;
            MatchAnyOf& operator=(MatchAnyOf const&) = delete;
            MatchAnyOf(MatchAnyOf&&) = default;
            MatchAnyOf& operator=(MatchAnyOf&&) = default;

            bool match( ArgT const& arg ) const override {
                for( auto matcher : m_matchers ) {
                    if (matcher->match(arg))
                        return true;
                }
                return false;
            }
            std::string describe() const override {
                std::string description;
                description.reserve( 4 + m_matchers.size()*32 );
                description += "( ";
                bool first = true;
                for( auto matcher : m_matchers ) {
                    if( first )
                        first = false;
                    else
                        description += " or ";
                    description += matcher->toString();
                }
                description += " )";
                return description;
            }

            friend MatchAnyOf operator|| (MatchAnyOf&& lhs, MatcherBase<ArgT> const& rhs) {
                lhs.m_matchers.push_back(&rhs);
                return CATCH_MOVE(lhs);
            }
            friend MatchAnyOf operator|| (MatcherBase<ArgT> const& lhs, MatchAnyOf&& rhs) {
                rhs.m_matchers.insert(rhs.m_matchers.begin(), &lhs);
                return CATCH_MOVE(rhs);
            }
        };

        //! lvalue overload is intentionally deleted, users should
        //! not be trying to compose stored composition matchers
        template<typename ArgT>
        MatchAnyOf<ArgT> operator|| (MatchAnyOf<ArgT> const& lhs, MatcherBase<ArgT> const& rhs) = delete;
        //! lvalue overload is intentionally deleted, users should
        //! not be trying to compose stored composition matchers
        template<typename ArgT>
        MatchAnyOf<ArgT> operator|| (MatcherBase<ArgT> const& lhs, MatchAnyOf<ArgT> const& rhs) = delete;

        template<typename ArgT>
        class MatchNotOf final : public MatcherBase<ArgT> {
            MatcherBase<ArgT> const& m_underlyingMatcher;

        public:
            explicit MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ):
                m_underlyingMatcher( underlyingMatcher )
            {}

            bool match( ArgT const& arg ) const override {
                return !m_underlyingMatcher.match( arg );
            }

            std::string describe() const override {
                return "not " + m_underlyingMatcher.toString();
            }
        };

    } // namespace Detail

    template <typename T>
    Detail::MatchAllOf<T> operator&& (MatcherBase<T> const& lhs, MatcherBase<T> const& rhs) {
        return Detail::MatchAllOf<T>{} && lhs && rhs;
    }
    template <typename T>
    Detail::MatchAnyOf<T> operator|| (MatcherBase<T> const& lhs, MatcherBase<T> const& rhs) {
        return Detail::MatchAnyOf<T>{} || lhs || rhs;
    }

    template <typename T>
    Detail::MatchNotOf<T> operator! (MatcherBase<T> const& matcher) {
        return Detail::MatchNotOf<T>{ matcher };
    }


} // namespace Matchers
} // namespace Catch


#if defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)
  #define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
  #define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )

  #define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
  #define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )

  #define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
  #define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )

#elif defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #define CATCH_REQUIRE_THROWS_WITH( expr, matcher )                   (void)(0)
  #define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)

  #define CATCH_CHECK_THROWS_WITH( expr, matcher )                     (void)(0)
  #define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher )   (void)(0)

  #define CATCH_CHECK_THAT( arg, matcher )                             (void)(0)
  #define CATCH_REQUIRE_THAT( arg, matcher )                           (void)(0)

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)

  #define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
  #define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )

  #define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
  #define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )

  #define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
  #define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )

#elif !defined(CATCH_CONFIG_PREFIX_ALL) && defined(CATCH_CONFIG_DISABLE)

  #define REQUIRE_THROWS_WITH( expr, matcher )                   (void)(0)
  #define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)

  #define CHECK_THROWS_WITH( expr, matcher )                     (void)(0)
  #define CHECK_THROWS_MATCHES( expr, exceptionType, matcher )   (void)(0)

  #define CHECK_THAT( arg, matcher )                             (void)(0)
  #define REQUIRE_THAT( arg, matcher )                           (void)(0)

#endif // end of user facing macro declarations

#endif // CATCH_MATCHERS_HPP_INCLUDED


#ifndef CATCH_MATCHERS_CONTAINER_PROPERTIES_HPP_INCLUDED
#define CATCH_MATCHERS_CONTAINER_PROPERTIES_HPP_INCLUDED



#ifndef CATCH_MATCHERS_TEMPLATED_HPP_INCLUDED
#define CATCH_MATCHERS_TEMPLATED_HPP_INCLUDED


#include <array>
#include <algorithm>
#include <string>
#include <type_traits>

namespace Catch {
namespace Matchers {
    class MatcherGenericBase : public MatcherUntypedBase {
    public:
        MatcherGenericBase() = default;
        ~MatcherGenericBase() override; // = default;

        MatcherGenericBase(MatcherGenericBase const&) = default;
        MatcherGenericBase(MatcherGenericBase&&) = default;

        MatcherGenericBase& operator=(MatcherGenericBase const&) = delete;
        MatcherGenericBase& operator=(MatcherGenericBase&&) = delete;
    };


    namespace Detail {
        template<std::size_t N, std::size_t M>
        std::array<void const*, N + M> array_cat(std::array<void const*, N> && lhs, std::array<void const*, M> && rhs) {
            std::array<void const*, N + M> arr{};
            std::copy_n(lhs.begin(), N, arr.begin());
            std::copy_n(rhs.begin(), M, arr.begin() + N);
            return arr;
        }

        template<std::size_t N>
        std::array<void const*, N+1> array_cat(std::array<void const*, N> && lhs, void const* rhs) {
            std::array<void const*, N+1> arr{};
            std::copy_n(lhs.begin(), N, arr.begin());
            arr[N] = rhs;
            return arr;
        }

        template<std::size_t N>
        std::array<void const*, N+1> array_cat(void const* lhs, std::array<void const*, N> && rhs) {
            std::array<void const*, N + 1> arr{ {lhs} };
            std::copy_n(rhs.begin(), N, arr.begin() + 1);
            return arr;
        }

        template<typename T>
        using is_generic_matcher = std::is_base_of<
            Catch::Matchers::MatcherGenericBase,
            std::remove_cv_t<std::remove_reference_t<T>>
        >;

        template<typename... Ts>
        using are_generic_matchers = Catch::Detail::conjunction<is_generic_matcher<Ts>...>;

        template<typename T>
        using is_matcher = std::is_base_of<
            Catch::Matchers::MatcherUntypedBase,
            std::remove_cv_t<std::remove_reference_t<T>>
        >;


        template<std::size_t N, typename Arg>
        bool match_all_of(Arg&&, std::array<void const*, N> const&, std::index_sequence<>) {
            return true;
        }

        template<typename T, typename... MatcherTs, std::size_t N, typename Arg, std::size_t Idx, std::size_t... Indices>
        bool match_all_of(Arg&& arg, std::array<void const*, N> const& matchers, std::index_sequence<Idx, Indices...>) {
            return static_cast<T const*>(matchers[Idx])->match(arg) && match_all_of<MatcherTs...>(arg, matchers, std::index_sequence<Indices...>{});
        }


        template<std::size_t N, typename Arg>
        bool match_any_of(Arg&&, std::array<void const*, N> const&, std::index_sequence<>) {
            return false;
        }

        template<typename T, typename... MatcherTs, std::size_t N, typename Arg, std::size_t Idx, std::size_t... Indices>
        bool match_any_of(Arg&& arg, std::array<void const*, N> const& matchers, std::index_sequence<Idx, Indices...>) {
            return static_cast<T const*>(matchers[Idx])->match(arg) || match_any_of<MatcherTs...>(arg, matchers, std::index_sequence<Indices...>{});
        }

        std::string describe_multi_matcher(StringRef combine, std::string const* descriptions_begin, std::string const* descriptions_end);

        template<typename... MatcherTs, std::size_t... Idx>
        std::string describe_multi_matcher(StringRef combine, std::array<void const*, sizeof...(MatcherTs)> const& matchers, std::index_sequence<Idx...>) {
            std::array<std::string, sizeof...(MatcherTs)> descriptions {{
                static_cast<MatcherTs const*>(matchers[Idx])->toString()...
            }};

            return describe_multi_matcher(combine, descriptions.data(), descriptions.data() + descriptions.size());
        }


        template<typename... MatcherTs>
        class MatchAllOfGeneric final : public MatcherGenericBase {
        public:
            MatchAllOfGeneric(MatchAllOfGeneric const&) = delete;
            MatchAllOfGeneric& operator=(MatchAllOfGeneric const&) = delete;
            MatchAllOfGeneric(MatchAllOfGeneric&&) = default;
            MatchAllOfGeneric& operator=(MatchAllOfGeneric&&) = default;

            MatchAllOfGeneric(MatcherTs const&... matchers) : m_matchers{ {std::addressof(matchers)...} } {}
            explicit MatchAllOfGeneric(std::array<void const*, sizeof...(MatcherTs)> matchers) : m_matchers{matchers} {}

            template<typename Arg>
            bool match(Arg&& arg) const {
                return match_all_of<MatcherTs...>(arg, m_matchers, std::index_sequence_for<MatcherTs...>{});
            }

            std::string describe() const override {
                return describe_multi_matcher<MatcherTs...>(" and "_sr, m_matchers, std::index_sequence_for<MatcherTs...>{});
            }

            // Has to be public to enable the concatenating operators
            // below, because they are not friend of the RHS, only LHS,
            // and thus cannot access private fields of RHS
            std::array<void const*, sizeof...( MatcherTs )> m_matchers;


            //! Avoids type nesting for `GenericAllOf && GenericAllOf` case
            template<typename... MatchersRHS>
            friend
            MatchAllOfGeneric<MatcherTs..., MatchersRHS...> operator && (
                    MatchAllOfGeneric<MatcherTs...>&& lhs,
                    MatchAllOfGeneric<MatchersRHS...>&& rhs) {
                return MatchAllOfGeneric<MatcherTs..., MatchersRHS...>{array_cat(CATCH_MOVE(lhs.m_matchers), CATCH_MOVE(rhs.m_matchers))};
            }

            //! Avoids type nesting for `GenericAllOf && some matcher` case
            template<typename MatcherRHS>
            friend std::enable_if_t<is_matcher<MatcherRHS>::value,
            MatchAllOfGeneric<MatcherTs..., MatcherRHS>> operator && (
                    MatchAllOfGeneric<MatcherTs...>&& lhs,
                    MatcherRHS const& rhs) {
                return MatchAllOfGeneric<MatcherTs..., MatcherRHS>{array_cat(CATCH_MOVE(lhs.m_matchers), static_cast<void const*>(&rhs))};
            }

            //! Avoids type nesting for `some matcher && GenericAllOf` case
            template<typename MatcherLHS>
            friend std::enable_if_t<is_matcher<MatcherLHS>::value,
            MatchAllOfGeneric<MatcherLHS, MatcherTs...>> operator && (
                    MatcherLHS const& lhs,
                    MatchAllOfGeneric<MatcherTs...>&& rhs) {
                return MatchAllOfGeneric<MatcherLHS, MatcherTs...>{array_cat(static_cast<void const*>(std::addressof(lhs)), CATCH_MOVE(rhs.m_matchers))};
            }
        };


        template<typename... MatcherTs>
        class MatchAnyOfGeneric final : public MatcherGenericBase {
        public:
            MatchAnyOfGeneric(MatchAnyOfGeneric const&) = delete;
            MatchAnyOfGeneric& operator=(MatchAnyOfGeneric const&) = delete;
            MatchAnyOfGeneric(MatchAnyOfGeneric&&) = default;
            MatchAnyOfGeneric& operator=(MatchAnyOfGeneric&&) = default;

            MatchAnyOfGeneric(MatcherTs const&... matchers) : m_matchers{ {std::addressof(matchers)...} } {}
            explicit MatchAnyOfGeneric(std::array<void const*, sizeof...(MatcherTs)> matchers) : m_matchers{matchers} {}

            template<typename Arg>
            bool match(Arg&& arg) const {
                return match_any_of<MatcherTs...>(arg, m_matchers, std::index_sequence_for<MatcherTs...>{});
            }

            std::string describe() const override {
                return describe_multi_matcher<MatcherTs...>(" or "_sr, m_matchers, std::index_sequence_for<MatcherTs...>{});
            }


            // Has to be public to enable the concatenating operators
            // below, because they are not friend of the RHS, only LHS,
            // and thus cannot access private fields of RHS
            std::array<void const*, sizeof...( MatcherTs )> m_matchers;

            //! Avoids type nesting for `GenericAnyOf || GenericAnyOf` case
            template<typename... MatchersRHS>
            friend MatchAnyOfGeneric<MatcherTs..., MatchersRHS...> operator || (
                    MatchAnyOfGeneric<MatcherTs...>&& lhs,
                    MatchAnyOfGeneric<MatchersRHS...>&& rhs) {
                return MatchAnyOfGeneric<MatcherTs..., MatchersRHS...>{array_cat(CATCH_MOVE(lhs.m_matchers), CATCH_MOVE(rhs.m_matchers))};
            }

            //! Avoids type nesting for `GenericAnyOf || some matcher` case
            template<typename MatcherRHS>
            friend std::enable_if_t<is_matcher<MatcherRHS>::value,
            MatchAnyOfGeneric<MatcherTs..., MatcherRHS>> operator || (
                    MatchAnyOfGeneric<MatcherTs...>&& lhs,
                    MatcherRHS const& rhs) {
                return MatchAnyOfGeneric<MatcherTs..., MatcherRHS>{array_cat(CATCH_MOVE(lhs.m_matchers), static_cast<void const*>(std::addressof(rhs)))};
            }

            //! Avoids type nesting for `some matcher || GenericAnyOf` case
            template<typename MatcherLHS>
            friend std::enable_if_t<is_matcher<MatcherLHS>::value,
            MatchAnyOfGeneric<MatcherLHS, MatcherTs...>> operator || (
                MatcherLHS const& lhs,
                MatchAnyOfGeneric<MatcherTs...>&& rhs) {
                return MatchAnyOfGeneric<MatcherLHS, MatcherTs...>{array_cat(static_cast<void const*>(std::addressof(lhs)), CATCH_MOVE(rhs.m_matchers))};
            }
        };


        template<typename MatcherT>
        class MatchNotOfGeneric final : public MatcherGenericBase {
            MatcherT const& m_matcher;

        public:
            MatchNotOfGeneric(MatchNotOfGeneric const&) = delete;
            MatchNotOfGeneric& operator=(MatchNotOfGeneric const&) = delete;
            MatchNotOfGeneric(MatchNotOfGeneric&&) = default;
            MatchNotOfGeneric& operator=(MatchNotOfGeneric&&) = default;

            explicit MatchNotOfGeneric(MatcherT const& matcher) : m_matcher{matcher} {}

            template<typename Arg>
            bool match(Arg&& arg) const {
                return !m_matcher.match(arg);
            }

            std::string describe() const override {
                return "not " + m_matcher.toString();
            }

            //! Negating negation can just unwrap and return underlying matcher
            friend MatcherT const& operator ! (MatchNotOfGeneric<MatcherT> const& matcher) {
                return matcher.m_matcher;
            }
        };
    } // namespace Detail


    // compose only generic matchers
    template<typename MatcherLHS, typename MatcherRHS>
    std::enable_if_t<Detail::are_generic_matchers<MatcherLHS, MatcherRHS>::value, Detail::MatchAllOfGeneric<MatcherLHS, MatcherRHS>>
        operator && (MatcherLHS const& lhs, MatcherRHS const& rhs) {
        return { lhs, rhs };
    }

    template<typename MatcherLHS, typename MatcherRHS>
    std::enable_if_t<Detail::are_generic_matchers<MatcherLHS, MatcherRHS>::value, Detail::MatchAnyOfGeneric<MatcherLHS, MatcherRHS>>
        operator || (MatcherLHS const& lhs, MatcherRHS const& rhs) {
        return { lhs, rhs };
    }

    //! Wrap provided generic matcher in generic negator
    template<typename MatcherT>
    std::enable_if_t<Detail::is_generic_matcher<MatcherT>::value, Detail::MatchNotOfGeneric<MatcherT>>
        operator ! (MatcherT const& matcher) {
        return Detail::MatchNotOfGeneric<MatcherT>{matcher};
    }


    // compose mixed generic and non-generic matchers
    template<typename MatcherLHS, typename ArgRHS>
    std::enable_if_t<Detail::is_generic_matcher<MatcherLHS>::value, Detail::MatchAllOfGeneric<MatcherLHS, MatcherBase<ArgRHS>>>
        operator && (MatcherLHS const& lhs, MatcherBase<ArgRHS> const& rhs) {
        return { lhs, rhs };
    }

    template<typename ArgLHS, typename MatcherRHS>
    std::enable_if_t<Detail::is_generic_matcher<MatcherRHS>::value, Detail::MatchAllOfGeneric<MatcherBase<ArgLHS>, MatcherRHS>>
        operator && (MatcherBase<ArgLHS> const& lhs, MatcherRHS const& rhs) {
        return { lhs, rhs };
    }

    template<typename MatcherLHS, typename ArgRHS>
    std::enable_if_t<Detail::is_generic_matcher<MatcherLHS>::value, Detail::MatchAnyOfGeneric<MatcherLHS, MatcherBase<ArgRHS>>>
        operator || (MatcherLHS const& lhs, MatcherBase<ArgRHS> const& rhs) {
        return { lhs, rhs };
    }

    template<typename ArgLHS, typename MatcherRHS>
    std::enable_if_t<Detail::is_generic_matcher<MatcherRHS>::value, Detail::MatchAnyOfGeneric<MatcherBase<ArgLHS>, MatcherRHS>>
        operator || (MatcherBase<ArgLHS> const& lhs, MatcherRHS const& rhs) {
        return { lhs, rhs };
    }

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_TEMPLATED_HPP_INCLUDED

namespace Catch {
    namespace Matchers {

        class IsEmptyMatcher final : public MatcherGenericBase {
        public:
            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
#if defined(CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS)
                using Catch::Detail::empty;
#else
                using std::empty;
#endif
                return empty(rng);
            }

            std::string describe() const override;
        };

        class HasSizeMatcher final : public MatcherGenericBase {
            std::size_t m_target_size;
        public:
            explicit HasSizeMatcher(std::size_t target_size):
                m_target_size(target_size)
            {}

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
#if defined(CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS)
                using Catch::Detail::size;
#else
                using std::size;
#endif
                return size(rng) == m_target_size;
            }

            std::string describe() const override;
        };

        template <typename Matcher>
        class SizeMatchesMatcher final : public MatcherGenericBase {
            Matcher m_matcher;
        public:
            explicit SizeMatchesMatcher(Matcher m):
                m_matcher(CATCH_MOVE(m))
            {}

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
#if defined(CATCH_CONFIG_POLYFILL_NONMEMBER_CONTAINER_ACCESS)
                using Catch::Detail::size;
#else
                using std::size;
#endif
                return m_matcher.match(size(rng));
            }

            std::string describe() const override {
                return "size matches " + m_matcher.describe();
            }
        };


        //! Creates a matcher that accepts empty ranges/containers
        IsEmptyMatcher IsEmpty();
        //! Creates a matcher that accepts ranges/containers with specific size
        HasSizeMatcher SizeIs(std::size_t sz);
        template <typename Matcher>
        std::enable_if_t<Detail::is_matcher<Matcher>::value,
        SizeMatchesMatcher<Matcher>> SizeIs(Matcher&& m) {
            return SizeMatchesMatcher<Matcher>{CATCH_FORWARD(m)};
        }

    } // end namespace Matchers
} // end namespace Catch

#endif // CATCH_MATCHERS_CONTAINER_PROPERTIES_HPP_INCLUDED


#ifndef CATCH_MATCHERS_CONTAINS_HPP_INCLUDED
#define CATCH_MATCHERS_CONTAINS_HPP_INCLUDED


#include <algorithm>
#include <functional>

namespace Catch {
    namespace Matchers {
        //! Matcher for checking that an element in range is equal to specific element
        template <typename T, typename Equality>
        class ContainsElementMatcher final : public MatcherGenericBase {
            T m_desired;
            Equality m_eq;
        public:
            template <typename T2, typename Equality2>
            ContainsElementMatcher(T2&& target, Equality2&& predicate):
                m_desired(CATCH_FORWARD(target)),
                m_eq(CATCH_FORWARD(predicate))
            {}

            std::string describe() const override {
                return "contains element " + Catch::Detail::stringify(m_desired);
            }

            template <typename RangeLike>
            bool match( RangeLike&& rng ) const {
                for ( auto&& elem : rng ) {
                    if ( m_eq( elem, m_desired ) ) { return true; }
                }
                return false;
            }
        };

        //! Meta-matcher for checking that an element in a range matches a specific matcher
        template <typename Matcher>
        class ContainsMatcherMatcher final : public MatcherGenericBase {
            Matcher m_matcher;
        public:
            // Note that we do a copy+move to avoid having to SFINAE this
            // constructor (and also avoid some perfect forwarding failure
            // cases)
            ContainsMatcherMatcher(Matcher matcher):
                m_matcher(CATCH_MOVE(matcher))
            {}

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (m_matcher.match(elem)) {
                        return true;
                    }
                }
                return false;
            }

            std::string describe() const override {
                return "contains element matching " + m_matcher.describe();
            }
        };

        /**
         * Creates a matcher that checks whether a range contains a specific element.
         *
         * Uses `std::equal_to` to do the comparison
         */
        template <typename T>
        std::enable_if_t<!Detail::is_matcher<T>::value,
        ContainsElementMatcher<T, std::equal_to<>>> Contains(T&& elem) {
            return { CATCH_FORWARD(elem), std::equal_to<>{} };
        }

        //! Creates a matcher that checks whether a range contains element matching a matcher
        template <typename Matcher>
        std::enable_if_t<Detail::is_matcher<Matcher>::value,
        ContainsMatcherMatcher<Matcher>> Contains(Matcher&& matcher) {
            return { CATCH_FORWARD(matcher) };
        }

        /**
         * Creates a matcher that checks whether a range contains a specific element.
         *
         * Uses `eq` to do the comparisons, the element is provided on the rhs
         */
        template <typename T, typename Equality>
        ContainsElementMatcher<T, Equality> Contains(T&& elem, Equality&& eq) {
            return { CATCH_FORWARD(elem), CATCH_FORWARD(eq) };
        }

    }
}

#endif // CATCH_MATCHERS_CONTAINS_HPP_INCLUDED


#ifndef CATCH_MATCHERS_EXCEPTION_HPP_INCLUDED
#define CATCH_MATCHERS_EXCEPTION_HPP_INCLUDED


namespace Catch {
namespace Matchers {

class ExceptionMessageMatcher final : public MatcherBase<std::exception> {
    std::string m_message;
public:

    ExceptionMessageMatcher(std::string const& message):
        m_message(message)
    {}

    bool match(std::exception const& ex) const override;

    std::string describe() const override;
};

//! Creates a matcher that checks whether a std derived exception has the provided message
ExceptionMessageMatcher Message(std::string const& message);

template <typename StringMatcherType>
class ExceptionMessageMatchesMatcher final
    : public MatcherBase<std::exception> {
    StringMatcherType m_matcher;

public:
    ExceptionMessageMatchesMatcher( StringMatcherType matcher ):
        m_matcher( CATCH_MOVE( matcher ) ) {}

    bool match( std::exception const& ex ) const override {
        return m_matcher.match( ex.what() );
    }

    std::string describe() const override {
        return " matches \"" + m_matcher.describe() + '"';
    }
};

//! Creates a matcher that checks whether a message from an std derived
//! exception matches a provided matcher
template <typename StringMatcherType>
ExceptionMessageMatchesMatcher<StringMatcherType>
MessageMatches( StringMatcherType&& matcher ) {
    return { CATCH_FORWARD( matcher ) };
}

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_EXCEPTION_HPP_INCLUDED


#ifndef CATCH_MATCHERS_FLOATING_POINT_HPP_INCLUDED
#define CATCH_MATCHERS_FLOATING_POINT_HPP_INCLUDED


namespace Catch {
namespace Matchers {

    namespace Detail {
        enum class FloatingPointKind : uint8_t;
    }

    class  WithinAbsMatcher final : public MatcherBase<double> {
    public:
        WithinAbsMatcher(double target, double margin);
        bool match(double const& matchee) const override;
        std::string describe() const override;
    private:
        double m_target;
        double m_margin;
    };

    //! Creates a matcher that accepts numbers within certain range of target
    WithinAbsMatcher WithinAbs( double target, double margin );



    class WithinUlpsMatcher final : public MatcherBase<double> {
    public:
        WithinUlpsMatcher( double target,
                           uint64_t ulps,
                           Detail::FloatingPointKind baseType );
        bool match(double const& matchee) const override;
        std::string describe() const override;
    private:
        double m_target;
        uint64_t m_ulps;
        Detail::FloatingPointKind m_type;
    };

    //! Creates a matcher that accepts doubles within certain ULP range of target
    WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff);
    //! Creates a matcher that accepts floats within certain ULP range of target
    WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff);



    // Given IEEE-754 format for floats and doubles, we can assume
    // that float -> double promotion is lossless. Given this, we can
    // assume that if we do the standard relative comparison of
    // |lhs - rhs| <= epsilon * max(fabs(lhs), fabs(rhs)), then we get
    // the same result if we do this for floats, as if we do this for
    // doubles that were promoted from floats.
    class WithinRelMatcher final : public MatcherBase<double> {
    public:
        WithinRelMatcher( double target, double epsilon );
        bool match(double const& matchee) const override;
        std::string describe() const override;
    private:
        double m_target;
        double m_epsilon;
    };

    //! Creates a matcher that accepts doubles within certain relative range of target
    WithinRelMatcher WithinRel(double target, double eps);
    //! Creates a matcher that accepts doubles within 100*DBL_EPS relative range of target
    WithinRelMatcher WithinRel(double target);
    //! Creates a matcher that accepts doubles within certain relative range of target
    WithinRelMatcher WithinRel(float target, float eps);
    //! Creates a matcher that accepts floats within 100*FLT_EPS relative range of target
    WithinRelMatcher WithinRel(float target);



    class IsNaNMatcher final : public MatcherBase<double> {
    public:
        IsNaNMatcher() = default;
        bool match( double const& matchee ) const override;
        std::string describe() const override;
    };

    IsNaNMatcher IsNaN();

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_FLOATING_POINT_HPP_INCLUDED


#ifndef CATCH_MATCHERS_PREDICATE_HPP_INCLUDED
#define CATCH_MATCHERS_PREDICATE_HPP_INCLUDED


#include <string>

namespace Catch {
namespace Matchers {

namespace Detail {
    std::string finalizeDescription(const std::string& desc);
} // namespace Detail

template <typename T, typename Predicate>
class PredicateMatcher final : public MatcherBase<T> {
    Predicate m_predicate;
    std::string m_description;
public:

    PredicateMatcher(Predicate&& elem, std::string const& descr)
        :m_predicate(CATCH_FORWARD(elem)),
        m_description(Detail::finalizeDescription(descr))
    {}

    bool match( T const& item ) const override {
        return m_predicate(item);
    }

    std::string describe() const override {
        return m_description;
    }
};

    /**
     * Creates a matcher that calls delegates `match` to the provided predicate.
     *
     * The user has to explicitly specify the argument type to the matcher
     */
    template<typename T, typename Pred>
    PredicateMatcher<T, Pred> Predicate(Pred&& predicate, std::string const& description = "") {
        static_assert(is_callable<Pred(T)>::value, "Predicate not callable with argument T");
        static_assert(std::is_same<bool, FunctionReturnType<Pred, T>>::value, "Predicate does not return bool");
        return PredicateMatcher<T, Pred>(CATCH_FORWARD(predicate), description);
    }

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_PREDICATE_HPP_INCLUDED


#ifndef CATCH_MATCHERS_QUANTIFIERS_HPP_INCLUDED
#define CATCH_MATCHERS_QUANTIFIERS_HPP_INCLUDED


namespace Catch {
    namespace Matchers {
        // Matcher for checking that all elements in range matches a given matcher.
        template <typename Matcher>
        class AllMatchMatcher final : public MatcherGenericBase {
            Matcher m_matcher;
        public:
            AllMatchMatcher(Matcher matcher):
                m_matcher(CATCH_MOVE(matcher))
            {}

            std::string describe() const override {
                return "all match " + m_matcher.describe();
            }

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (!m_matcher.match(elem)) {
                        return false;
                    }
                }
                return true;
            }
        };

        // Matcher for checking that no element in range matches a given matcher.
        template <typename Matcher>
        class NoneMatchMatcher final : public MatcherGenericBase {
            Matcher m_matcher;
        public:
            NoneMatchMatcher(Matcher matcher):
                m_matcher(CATCH_MOVE(matcher))
            {}

            std::string describe() const override {
                return "none match " + m_matcher.describe();
            }

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (m_matcher.match(elem)) {
                        return false;
                    }
                }
                return true;
            }
        };

        // Matcher for checking that at least one element in range matches a given matcher.
        template <typename Matcher>
        class AnyMatchMatcher final : public MatcherGenericBase {
            Matcher m_matcher;
        public:
            AnyMatchMatcher(Matcher matcher):
                m_matcher(CATCH_MOVE(matcher))
            {}

            std::string describe() const override {
                return "any match " + m_matcher.describe();
            }

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (m_matcher.match(elem)) {
                        return true;
                    }
                }
                return false;
            }
        };

        // Matcher for checking that all elements in range are true.
        class AllTrueMatcher final : public MatcherGenericBase {
        public:
            std::string describe() const override;

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (!elem) {
                        return false;
                    }
                }
                return true;
            }
        };

        // Matcher for checking that no element in range is true.
        class NoneTrueMatcher final : public MatcherGenericBase {
        public:
            std::string describe() const override;

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (elem) {
                        return false;
                    }
                }
                return true;
            }
        };

        // Matcher for checking that any element in range is true.
        class AnyTrueMatcher final : public MatcherGenericBase {
        public:
            std::string describe() const override;

            template <typename RangeLike>
            bool match(RangeLike&& rng) const {
                for (auto&& elem : rng) {
                    if (elem) {
                        return true;
                    }
                }
                return false;
            }
        };

        // Creates a matcher that checks whether all elements in a range match a matcher
        template <typename Matcher>
        AllMatchMatcher<Matcher> AllMatch(Matcher&& matcher) {
            return { CATCH_FORWARD(matcher) };
        }

        // Creates a matcher that checks whether no element in a range matches a matcher.
        template <typename Matcher>
        NoneMatchMatcher<Matcher> NoneMatch(Matcher&& matcher) {
            return { CATCH_FORWARD(matcher) };
        }

        // Creates a matcher that checks whether any element in a range matches a matcher.
        template <typename Matcher>
        AnyMatchMatcher<Matcher> AnyMatch(Matcher&& matcher) {
            return { CATCH_FORWARD(matcher) };
        }

        // Creates a matcher that checks whether all elements in a range are true
        AllTrueMatcher AllTrue();

        // Creates a matcher that checks whether no element in a range is true
        NoneTrueMatcher NoneTrue();

        // Creates a matcher that checks whether any element in a range is true
        AnyTrueMatcher AnyTrue();
    }
}

#endif // CATCH_MATCHERS_QUANTIFIERS_HPP_INCLUDED


#ifndef CATCH_MATCHERS_RANGE_EQUALS_HPP_INCLUDED
#define CATCH_MATCHERS_RANGE_EQUALS_HPP_INCLUDED


#include <algorithm>
#include <utility>

namespace Catch {
    namespace Matchers {

        /**
         * Matcher for checking that an element contains the same
         * elements in the same order
         */
        template <typename TargetRangeLike, typename Equality>
        class RangeEqualsMatcher final : public MatcherGenericBase {
            TargetRangeLike m_desired;
            Equality m_predicate;

        public:
            template <typename TargetRangeLike2, typename Equality2>
            RangeEqualsMatcher( TargetRangeLike2&& range,
                                Equality2&& predicate ):
                m_desired( CATCH_FORWARD( range ) ),
                m_predicate( CATCH_FORWARD( predicate ) ) {}

            template <typename RangeLike>
            bool match( RangeLike&& rng ) const {
                auto rng_start = begin( rng );
                const auto rng_end = end( rng );
                auto target_start = begin( m_desired );
                const auto target_end = end( m_desired );

                while (rng_start != rng_end && target_start != target_end) {
                    if (!m_predicate(*rng_start, *target_start)) {
                        return false;
                    }
                    ++rng_start;
                    ++target_start;
                }
                return rng_start == rng_end && target_start == target_end;
            }

            std::string describe() const override {
                return "elements are " + Catch::Detail::stringify( m_desired );
            }
        };

        /**
         * Matcher for checking that an element contains the same
         * elements (but not necessarily in the same order)
         */
        template <typename TargetRangeLike, typename Equality>
        class UnorderedRangeEqualsMatcher final : public MatcherGenericBase {
            TargetRangeLike m_desired;
            Equality m_predicate;

        public:
            template <typename TargetRangeLike2, typename Equality2>
            UnorderedRangeEqualsMatcher( TargetRangeLike2&& range,
                                         Equality2&& predicate ):
                m_desired( CATCH_FORWARD( range ) ),
                m_predicate( CATCH_FORWARD( predicate ) ) {}

            template <typename RangeLike>
            bool match( RangeLike&& rng ) const {
                using std::begin;
                using std::end;
                return Catch::Detail::is_permutation( begin( m_desired ),
                                                      end( m_desired ),
                                                      begin( rng ),
                                                      end( rng ),
                                                      m_predicate );
            }

            std::string describe() const override {
                return "unordered elements are " +
                       ::Catch::Detail::stringify( m_desired );
            }
        };

        /**
         * Creates a matcher that checks if all elements in a range are equal
         * to all elements in another range.
         *
         * Uses `std::equal_to` to do the comparison
         */
        template <typename RangeLike>
        std::enable_if_t<!Detail::is_matcher<RangeLike>::value,
                         RangeEqualsMatcher<RangeLike, std::equal_to<>>>
        RangeEquals( RangeLike&& range ) {
            return { CATCH_FORWARD( range ), std::equal_to<>{} };
        }

        /**
         * Creates a matcher that checks if all elements in a range are equal
         * to all elements in another range.
         *
         * Uses to provided predicate `predicate` to do the comparisons
         */
        template <typename RangeLike, typename Equality>
        RangeEqualsMatcher<RangeLike, Equality>
        RangeEquals( RangeLike&& range, Equality&& predicate ) {
            return { CATCH_FORWARD( range ), CATCH_FORWARD( predicate ) };
        }

        /**
         * Creates a matcher that checks if all elements in a range are equal
         * to all elements in another range, in some permutation
         *
         * Uses `std::equal_to` to do the comparison
         */
        template <typename RangeLike>
        std::enable_if_t<
            !Detail::is_matcher<RangeLike>::value,
            UnorderedRangeEqualsMatcher<RangeLike, std::equal_to<>>>
        UnorderedRangeEquals( RangeLike&& range ) {
            return { CATCH_FORWARD( range ), std::equal_to<>{} };
        }

        /**
         * Creates a matcher that checks if all elements in a range are equal
         * to all elements in another range, in some permutation.
         *
         * Uses to provided predicate `predicate` to do the comparisons
         */
        template <typename RangeLike, typename Equality>
        UnorderedRangeEqualsMatcher<RangeLike, Equality>
        UnorderedRangeEquals( RangeLike&& range, Equality&& predicate ) {
            return { CATCH_FORWARD( range ), CATCH_FORWARD( predicate ) };
        }
    } // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_RANGE_EQUALS_HPP_INCLUDED


#ifndef CATCH_MATCHERS_STRING_HPP_INCLUDED
#define CATCH_MATCHERS_STRING_HPP_INCLUDED


#include <string>

namespace Catch {
namespace Matchers {

    struct CasedString {
        CasedString( std::string const& str, CaseSensitive caseSensitivity );
        std::string adjustString( std::string const& str ) const;
        StringRef caseSensitivitySuffix() const;

        CaseSensitive m_caseSensitivity;
        std::string m_str;
    };

    class StringMatcherBase : public MatcherBase<std::string> {
    protected:
        CasedString m_comparator;
        StringRef m_operation;

    public:
        StringMatcherBase( StringRef operation,
                           CasedString const& comparator );
        std::string describe() const override;
    };

    class StringEqualsMatcher final : public StringMatcherBase {
    public:
        StringEqualsMatcher( CasedString const& comparator );
        bool match( std::string const& source ) const override;
    };
    class StringContainsMatcher final : public StringMatcherBase {
    public:
        StringContainsMatcher( CasedString const& comparator );
        bool match( std::string const& source ) const override;
    };
    class StartsWithMatcher final : public StringMatcherBase {
    public:
        StartsWithMatcher( CasedString const& comparator );
        bool match( std::string const& source ) const override;
    };
    class EndsWithMatcher final : public StringMatcherBase {
    public:
        EndsWithMatcher( CasedString const& comparator );
        bool match( std::string const& source ) const override;
    };

    class RegexMatcher final : public MatcherBase<std::string> {
        std::string m_regex;
        CaseSensitive m_caseSensitivity;

    public:
        RegexMatcher( std::string regex, CaseSensitive caseSensitivity );
        bool match( std::string const& matchee ) const override;
        std::string describe() const override;
    };

    //! Creates matcher that accepts strings that are exactly equal to `str`
    StringEqualsMatcher Equals( std::string const& str, CaseSensitive caseSensitivity = CaseSensitive::Yes );
    //! Creates matcher that accepts strings that contain `str`
    StringContainsMatcher ContainsSubstring( std::string const& str, CaseSensitive caseSensitivity = CaseSensitive::Yes );
    //! Creates matcher that accepts strings that _end_ with `str`
    EndsWithMatcher EndsWith( std::string const& str, CaseSensitive caseSensitivity = CaseSensitive::Yes );
    //! Creates matcher that accepts strings that _start_ with `str`
    StartsWithMatcher StartsWith( std::string const& str, CaseSensitive caseSensitivity = CaseSensitive::Yes );
    //! Creates matcher that accepts strings matching `regex`
    RegexMatcher Matches( std::string const& regex, CaseSensitive caseSensitivity = CaseSensitive::Yes );

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_STRING_HPP_INCLUDED


#ifndef CATCH_MATCHERS_VECTOR_HPP_INCLUDED
#define CATCH_MATCHERS_VECTOR_HPP_INCLUDED


#include <algorithm>

namespace Catch {
namespace Matchers {

    template<typename T, typename Alloc>
    class VectorContainsElementMatcher final : public MatcherBase<std::vector<T, Alloc>> {
        T const& m_comparator;

    public:
        VectorContainsElementMatcher(T const& comparator):
            m_comparator(comparator)
        {}

        bool match(std::vector<T, Alloc> const& v) const override {
            for (auto const& el : v) {
                if (el == m_comparator) {
                    return true;
                }
            }
            return false;
        }

        std::string describe() const override {
            return "Contains: " + ::Catch::Detail::stringify( m_comparator );
        }
    };

    template<typename T, typename AllocComp, typename AllocMatch>
    class ContainsMatcher final : public MatcherBase<std::vector<T, AllocMatch>> {
        std::vector<T, AllocComp> const& m_comparator;

    public:
        ContainsMatcher(std::vector<T, AllocComp> const& comparator):
            m_comparator( comparator )
        {}

        bool match(std::vector<T, AllocMatch> const& v) const override {
            // !TBD: see note in EqualsMatcher
            if (m_comparator.size() > v.size())
                return false;
            for (auto const& comparator : m_comparator) {
                auto present = false;
                for (const auto& el : v) {
                    if (el == comparator) {
                        present = true;
                        break;
                    }
                }
                if (!present) {
                    return false;
                }
            }
            return true;
        }
        std::string describe() const override {
            return "Contains: " + ::Catch::Detail::stringify( m_comparator );
        }
    };

    template<typename T, typename AllocComp, typename AllocMatch>
    class EqualsMatcher final : public MatcherBase<std::vector<T, AllocMatch>> {
        std::vector<T, AllocComp> const& m_comparator;

    public:
        EqualsMatcher(std::vector<T, AllocComp> const& comparator):
            m_comparator( comparator )
        {}

        bool match(std::vector<T, AllocMatch> const& v) const override {
            // !TBD: This currently works if all elements can be compared using !=
            // - a more general approach would be via a compare template that defaults
            // to using !=. but could be specialised for, e.g. std::vector<T> etc
            // - then just call that directly
            if ( m_comparator.size() != v.size() ) { return false; }
            for ( std::size_t i = 0; i < v.size(); ++i ) {
                if ( !( m_comparator[i] == v[i] ) ) { return false; }
            }
            return true;
        }
        std::string describe() const override {
            return "Equals: " + ::Catch::Detail::stringify( m_comparator );
        }
    };

    template<typename T, typename AllocComp, typename AllocMatch>
    class ApproxMatcher final : public MatcherBase<std::vector<T, AllocMatch>> {
        std::vector<T, AllocComp> const& m_comparator;
        mutable Catch::Approx approx = Catch::Approx::custom();

    public:
        ApproxMatcher(std::vector<T, AllocComp> const& comparator):
            m_comparator( comparator )
        {}

        bool match(std::vector<T, AllocMatch> const& v) const override {
            if (m_comparator.size() != v.size())
                return false;
            for (std::size_t i = 0; i < v.size(); ++i)
                if (m_comparator[i] != approx(v[i]))
                    return false;
            return true;
        }
        std::string describe() const override {
            return "is approx: " + ::Catch::Detail::stringify( m_comparator );
        }
        template <typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        ApproxMatcher& epsilon( T const& newEpsilon ) {
            approx.epsilon(static_cast<double>(newEpsilon));
            return *this;
        }
        template <typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        ApproxMatcher& margin( T const& newMargin ) {
            approx.margin(static_cast<double>(newMargin));
            return *this;
        }
        template <typename = std::enable_if_t<std::is_constructible<double, T>::value>>
        ApproxMatcher& scale( T const& newScale ) {
            approx.scale(static_cast<double>(newScale));
            return *this;
        }
    };

    template<typename T, typename AllocComp, typename AllocMatch>
    class UnorderedEqualsMatcher final : public MatcherBase<std::vector<T, AllocMatch>> {
        std::vector<T, AllocComp> const& m_target;

    public:
        UnorderedEqualsMatcher(std::vector<T, AllocComp> const& target):
            m_target(target)
        {}
        bool match(std::vector<T, AllocMatch> const& vec) const override {
            if (m_target.size() != vec.size()) {
                return false;
            }
            return std::is_permutation(m_target.begin(), m_target.end(), vec.begin());
        }

        std::string describe() const override {
            return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
        }
    };


    // The following functions create the actual matcher objects.
    // This allows the types to be inferred

    //! Creates a matcher that matches vectors that contain all elements in `comparator`
    template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
    ContainsMatcher<T, AllocComp, AllocMatch> Contains( std::vector<T, AllocComp> const& comparator ) {
        return ContainsMatcher<T, AllocComp, AllocMatch>(comparator);
    }

    //! Creates a matcher that matches vectors that contain `comparator` as an element
    template<typename T, typename Alloc = std::allocator<T>>
    VectorContainsElementMatcher<T, Alloc> VectorContains( T const& comparator ) {
        return VectorContainsElementMatcher<T, Alloc>(comparator);
    }

    //! Creates a matcher that matches vectors that are exactly equal to `comparator`
    template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
    EqualsMatcher<T, AllocComp, AllocMatch> Equals( std::vector<T, AllocComp> const& comparator ) {
        return EqualsMatcher<T, AllocComp, AllocMatch>(comparator);
    }

    //! Creates a matcher that matches vectors that `comparator` as an element
    template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
    ApproxMatcher<T, AllocComp, AllocMatch> Approx( std::vector<T, AllocComp> const& comparator ) {
        return ApproxMatcher<T, AllocComp, AllocMatch>(comparator);
    }

    //! Creates a matcher that matches vectors that is equal to `target` modulo permutation
    template<typename T, typename AllocComp = std::allocator<T>, typename AllocMatch = AllocComp>
    UnorderedEqualsMatcher<T, AllocComp, AllocMatch> UnorderedEquals(std::vector<T, AllocComp> const& target) {
        return UnorderedEqualsMatcher<T, AllocComp, AllocMatch>(target);
    }

} // namespace Matchers
} // namespace Catch

#endif // CATCH_MATCHERS_VECTOR_HPP_INCLUDED

#endif // CATCH_MATCHERS_ALL_HPP_INCLUDED


/** \file
 * This is a convenience header for Catch2's Reporter support. It includes
 * **all** of Catch2 headers related to reporters, including all reporters.
 *
 * Generally the Catch2 users should use specific includes they need,
 * but this header can be used instead for ease-of-experimentation, or
 * just plain convenience, at the cost of (significantly) increased
 * compilation times.
 *
 * When a new header (reporter) is added to either the `reporter` folder,
 * or to the corresponding internal subfolder, it should be added here.
 */

#ifndef CATCH_REPORTERS_ALL_HPP_INCLUDED
#define CATCH_REPORTERS_ALL_HPP_INCLUDED



#ifndef CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED
#define CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED



#ifndef CATCH_REPORTER_STREAMING_BASE_HPP_INCLUDED
#define CATCH_REPORTER_STREAMING_BASE_HPP_INCLUDED



#ifndef CATCH_REPORTER_COMMON_BASE_HPP_INCLUDED
#define CATCH_REPORTER_COMMON_BASE_HPP_INCLUDED


#include <map>
#include <string>

namespace Catch {
    class ColourImpl;

    /**
     * This is the base class for all reporters.
     *
     * If are writing a reporter, you must derive from this type, or one
     * of the helper reporter bases that are derived from this type.
     *
     * ReporterBase centralizes handling of various common tasks in reporters,
     * like storing the right stream for the reporters to write to, and
     * providing the default implementation of the different listing events.
     */
    class ReporterBase : public IEventListener {
    protected:
        //! The stream wrapper as passed to us by outside code
        Detail::unique_ptr<IStream> m_wrapped_stream;
        //! Cached output stream from `m_wrapped_stream` to reduce
        //! number of indirect calls needed to write output.
        std::ostream& m_stream;
        //! Colour implementation this reporter was configured for
        Detail::unique_ptr<ColourImpl> m_colour;
        //! The custom reporter options user passed down to the reporter
        std::map<std::string, std::string> m_customOptions;

    public:
        ReporterBase( ReporterConfig&& config );
        ~ReporterBase() override; // = default;

        /**
         * Provides a simple default listing of reporters.
         *
         * Should look roughly like the reporter listing in v2 and earlier
         * versions of Catch2.
         */
        void listReporters(
            std::vector<ReporterDescription> const& descriptions ) override;
        /**
         * Provides a simple default listing of listeners
         *
         * Looks similarly to listing of reporters, but with listener type
         * instead of reporter name.
         */
        void listListeners(
            std::vector<ListenerDescription> const& descriptions ) override;
        /**
         * Provides a simple default listing of tests.
         *
         * Should look roughly like the test listing in v2 and earlier versions
         * of Catch2. Especially supports low-verbosity listing that mimics the
         * old `--list-test-names-only` output.
         */
        void listTests( std::vector<TestCaseHandle> const& tests ) override;
        /**
         * Provides a simple default listing of tags.
         *
         * Should look roughly like the tag listing in v2 and earlier versions
         * of Catch2.
         */
        void listTags( std::vector<TagInfo> const& tags ) override;
    };
} // namespace Catch

#endif // CATCH_REPORTER_COMMON_BASE_HPP_INCLUDED

#include <vector>

namespace Catch {

    class StreamingReporterBase : public ReporterBase {
    public:
        // GCC5 compat: we cannot use inherited constructor, because it
        //              doesn't implement backport of P0136
        StreamingReporterBase(ReporterConfig&& _config):
            ReporterBase(CATCH_MOVE(_config))
        {}
        ~StreamingReporterBase() override;

        void benchmarkPreparing( StringRef ) override {}
        void benchmarkStarting( BenchmarkInfo const& ) override {}
        void benchmarkEnded( BenchmarkStats<> const& ) override {}
        void benchmarkFailed( StringRef ) override {}

        void fatalErrorEncountered( StringRef /*error*/ ) override {}
        void noMatchingTestCases( StringRef /*unmatchedSpec*/ ) override {}
        void reportInvalidTestSpec( StringRef /*invalidArgument*/ ) override {}

        void testRunStarting( TestRunInfo const& _testRunInfo ) override;

        void testCaseStarting(TestCaseInfo const& _testInfo) override  {
            currentTestCaseInfo = &_testInfo;
        }
        void testCasePartialStarting( TestCaseInfo const&, uint64_t ) override {}
        void sectionStarting(SectionInfo const& _sectionInfo) override {
            m_sectionStack.push_back(_sectionInfo);
        }

        void assertionStarting( AssertionInfo const& ) override {}
        void assertionEnded( AssertionStats const& ) override {}

        void sectionEnded(SectionStats const& /* _sectionStats */) override {
            m_sectionStack.pop_back();
        }
        void testCasePartialEnded( TestCaseStats const&, uint64_t ) override {}
        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
            currentTestCaseInfo = nullptr;
        }
        void testRunEnded( TestRunStats const& /* _testRunStats */ ) override;

        void skipTest(TestCaseInfo const&) override {
            // Don't do anything with this by default.
            // It can optionally be overridden in the derived class.
        }

    protected:
        TestRunInfo currentTestRunInfo{ "test run has not started yet"_sr };
        TestCaseInfo const* currentTestCaseInfo = nullptr;

        //! Stack of all _active_ sections in the _current_ test case
        std::vector<SectionInfo> m_sectionStack;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_STREAMING_BASE_HPP_INCLUDED

#include <string>

namespace Catch {

    class AutomakeReporter final : public StreamingReporterBase {
    public:
        // GCC5 compat: we cannot use inherited constructor, because it
        //              doesn't implement backport of P0136
        AutomakeReporter(ReporterConfig&& _config):
            StreamingReporterBase(CATCH_MOVE(_config))
        {}
        ~AutomakeReporter() override;

        static std::string getDescription() {
            using namespace std::string_literals;
            return "Reports test results in the format of Automake .trs files"s;
        }

        void testCaseEnded(TestCaseStats const& _testCaseStats) override;
        void skipTest(TestCaseInfo const& testInfo) override;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_AUTOMAKE_HPP_INCLUDED


#ifndef CATCH_REPORTER_COMPACT_HPP_INCLUDED
#define CATCH_REPORTER_COMPACT_HPP_INCLUDED




namespace Catch {

    class CompactReporter final : public StreamingReporterBase {
    public:
        using StreamingReporterBase::StreamingReporterBase;

        ~CompactReporter() override;

        static std::string getDescription();

        void noMatchingTestCases( StringRef unmatchedSpec ) override;

        void testRunStarting( TestRunInfo const& _testInfo ) override;

        void assertionEnded(AssertionStats const& _assertionStats) override;

        void sectionEnded(SectionStats const& _sectionStats) override;

        void testRunEnded(TestRunStats const& _testRunStats) override;

    };

} // end namespace Catch

#endif // CATCH_REPORTER_COMPACT_HPP_INCLUDED


#ifndef CATCH_REPORTER_CONSOLE_HPP_INCLUDED
#define CATCH_REPORTER_CONSOLE_HPP_INCLUDED


namespace Catch {
    // Fwd decls
    class TablePrinter;

    class ConsoleReporter final : public StreamingReporterBase {
        Detail::unique_ptr<TablePrinter> m_tablePrinter;

    public:
        ConsoleReporter(ReporterConfig&& config);
        ~ConsoleReporter() override;
        static std::string getDescription();

        void noMatchingTestCases( StringRef unmatchedSpec ) override;
        void reportInvalidTestSpec( StringRef arg ) override;

        void assertionStarting(AssertionInfo const&) override;

        void assertionEnded(AssertionStats const& _assertionStats) override;

        void sectionStarting(SectionInfo const& _sectionInfo) override;
        void sectionEnded(SectionStats const& _sectionStats) override;

        void benchmarkPreparing( StringRef name ) override;
        void benchmarkStarting(BenchmarkInfo const& info) override;
        void benchmarkEnded(BenchmarkStats<> const& stats) override;
        void benchmarkFailed( StringRef error ) override;

        void testCaseEnded(TestCaseStats const& _testCaseStats) override;
        void testRunEnded(TestRunStats const& _testRunStats) override;
        void testRunStarting(TestRunInfo const& _testRunInfo) override;

    private:
        void lazyPrint();

        void lazyPrintWithoutClosingBenchmarkTable();
        void lazyPrintRunInfo();
        void printTestCaseAndSectionHeader();

        void printClosedHeader(std::string const& _name);
        void printOpenHeader(std::string const& _name);

        // if string has a : in first line will set indent to follow it on
        // subsequent lines
        void printHeaderString(std::string const& _string, std::size_t indent = 0);

        void printTotalsDivider(Totals const& totals);

        bool m_headerPrinted = false;
        bool m_testRunInfoPrinted = false;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_CONSOLE_HPP_INCLUDED


#ifndef CATCH_REPORTER_CUMULATIVE_BASE_HPP_INCLUDED
#define CATCH_REPORTER_CUMULATIVE_BASE_HPP_INCLUDED


#include <string>
#include <vector>

namespace Catch {

    namespace Detail {

        //! Represents either an assertion or a benchmark result to be handled by cumulative reporter later
        class AssertionOrBenchmarkResult {
            // This should really be a variant, but this is much faster
            // to write and the data layout here is already terrible
            // enough that we do not have to care about the object size.
            Optional<AssertionStats> m_assertion;
            Optional<BenchmarkStats<>> m_benchmark;
        public:
            AssertionOrBenchmarkResult(AssertionStats const& assertion);
            AssertionOrBenchmarkResult(BenchmarkStats<> const& benchmark);

            bool isAssertion() const;
            bool isBenchmark() const;

            AssertionStats const& asAssertion() const;
            BenchmarkStats<> const& asBenchmark() const;
        };
    }

    /**
     * Utility base for reporters that need to handle all results at once
     *
     * It stores tree of all test cases, sections and assertions, and after the
     * test run is finished, calls into `testRunEndedCumulative` to pass the
     * control to the deriving class.
     *
     * If you are deriving from this class and override any testing related
     * member functions, you should first call into the base's implementation to
     * avoid breaking the tree construction.
     *
     * Due to the way this base functions, it has to expand assertions up-front,
     * even if they are later unused (e.g. because the deriving reporter does
     * not report successful assertions, or because the deriving reporter does
     * not use assertion expansion at all). Derived classes can use two
     * customization points, `m_shouldStoreSuccesfulAssertions` and
     * `m_shouldStoreFailedAssertions`, to disable the expansion and gain extra
     * performance. **Accessing the assertion expansions if it wasn't stored is
     * UB.**
     */
    class CumulativeReporterBase : public ReporterBase {
    public:
        template<typename T, typename ChildNodeT>
        struct Node {
            explicit Node( T const& _value ) : value( _value ) {}

            using ChildNodes = std::vector<Detail::unique_ptr<ChildNodeT>>;
            T value;
            ChildNodes children;
        };
        struct SectionNode {
            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}

            bool operator == (SectionNode const& other) const {
                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
            }

            bool hasAnyAssertions() const;

            SectionStats stats;
            std::vector<Detail::unique_ptr<SectionNode>> childSections;
            std::vector<Detail::AssertionOrBenchmarkResult> assertionsAndBenchmarks;
            std::string stdOut;
            std::string stdErr;
        };


        using TestCaseNode = Node<TestCaseStats, SectionNode>;
        using TestRunNode = Node<TestRunStats, TestCaseNode>;

        // GCC5 compat: we cannot use inherited constructor, because it
        //              doesn't implement backport of P0136
        CumulativeReporterBase(ReporterConfig&& _config):
            ReporterBase(CATCH_MOVE(_config))
        {}
        ~CumulativeReporterBase() override;

        void benchmarkPreparing( StringRef ) override {}
        void benchmarkStarting( BenchmarkInfo const& ) override {}
        void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) override;
        void benchmarkFailed( StringRef ) override {}

        void noMatchingTestCases( StringRef ) override {}
        void reportInvalidTestSpec( StringRef ) override {}
        void fatalErrorEncountered( StringRef /*error*/ ) override {}

        void testRunStarting( TestRunInfo const& ) override {}

        void testCaseStarting( TestCaseInfo const& ) override {}
        void testCasePartialStarting( TestCaseInfo const&, uint64_t ) override {}
        void sectionStarting( SectionInfo const& sectionInfo ) override;

        void assertionStarting( AssertionInfo const& ) override {}

        void assertionEnded( AssertionStats const& assertionStats ) override;
        void sectionEnded( SectionStats const& sectionStats ) override;
        void testCasePartialEnded( TestCaseStats const&, uint64_t ) override {}
        void testCaseEnded( TestCaseStats const& testCaseStats ) override;
        void testRunEnded( TestRunStats const& testRunStats ) override;
        //! Customization point: called after last test finishes (testRunEnded has been handled)
        virtual void testRunEndedCumulative() = 0;

        void skipTest(TestCaseInfo const&) override {}

    protected:
        //! Should the cumulative base store the assertion expansion for successful assertions?
        bool m_shouldStoreSuccesfulAssertions = true;
        //! Should the cumulative base store the assertion expansion for failed assertions?
        bool m_shouldStoreFailedAssertions = true;

        // We need lazy construction here. We should probably refactor it
        // later, after the events are redone.
        //! The root node of the test run tree.
        Detail::unique_ptr<TestRunNode> m_testRun;

    private:
        // Note: We rely on pointer identity being stable, which is why
        //       we store pointers to the nodes rather than the values.
        std::vector<Detail::unique_ptr<TestCaseNode>> m_testCases;
        // Root section of the _current_ test case
        Detail::unique_ptr<SectionNode> m_rootSection;
        // Deepest section of the _current_ test case
        SectionNode* m_deepestSection = nullptr;
        // Stack of _active_ sections in the _current_ test case
        std::vector<SectionNode*> m_sectionStack;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_CUMULATIVE_BASE_HPP_INCLUDED


#ifndef CATCH_REPORTER_EVENT_LISTENER_HPP_INCLUDED
#define CATCH_REPORTER_EVENT_LISTENER_HPP_INCLUDED


namespace Catch {

    /**
     * Base class to simplify implementing listeners.
     *
     * Provides empty default implementation for all IEventListener member
     * functions, so that a listener implementation can pick which
     * member functions it actually cares about.
     */
    class EventListenerBase : public IEventListener {
    public:
        using IEventListener::IEventListener;

        void reportInvalidTestSpec( StringRef unmatchedSpec ) override;
        void fatalErrorEncountered( StringRef error ) override;

        void benchmarkPreparing( StringRef name ) override;
        void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
        void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) override;
        void benchmarkFailed( StringRef error ) override;

        void assertionStarting( AssertionInfo const& assertionInfo ) override;
        void assertionEnded( AssertionStats const& assertionStats ) override;

        void listReporters(
            std::vector<ReporterDescription> const& descriptions ) override;
        void listListeners(
            std::vector<ListenerDescription> const& descriptions ) override;
        void listTests( std::vector<TestCaseHandle> const& tests ) override;
        void listTags( std::vector<TagInfo> const& tagInfos ) override;

        void noMatchingTestCases( StringRef unmatchedSpec ) override;
        void testRunStarting( TestRunInfo const& testRunInfo ) override;
        void testCaseStarting( TestCaseInfo const& testInfo ) override;
        void testCasePartialStarting( TestCaseInfo const& testInfo,
                                      uint64_t partNumber ) override;
        void sectionStarting( SectionInfo const& sectionInfo ) override;
        void sectionEnded( SectionStats const& sectionStats ) override;
        void testCasePartialEnded( TestCaseStats const& testCaseStats,
                                   uint64_t partNumber ) override;
        void testCaseEnded( TestCaseStats const& testCaseStats ) override;
        void testRunEnded( TestRunStats const& testRunStats ) override;
        void skipTest( TestCaseInfo const& testInfo ) override;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_EVENT_LISTENER_HPP_INCLUDED


#ifndef CATCH_REPORTER_HELPERS_HPP_INCLUDED
#define CATCH_REPORTER_HELPERS_HPP_INCLUDED

#include <iosfwd>
#include <string>
#include <vector>


namespace Catch {

    class IConfig;
    class TestCaseHandle;
    class ColourImpl;

    // Returns double formatted as %.3f (format expected on output)
    std::string getFormattedDuration( double duration );

    //! Should the reporter show duration of test given current configuration?
    bool shouldShowDuration( IConfig const& config, double duration );

    std::string serializeFilters( std::vector<std::string> const& filters );

    struct lineOfChars {
        char c;
        constexpr lineOfChars( char c_ ): c( c_ ) {}

        friend std::ostream& operator<<( std::ostream& out, lineOfChars value );
    };

    /**
     * Lists reporter descriptions to the provided stream in user-friendly
     * format
     *
     * Used as the default listing implementation by the first party reporter
     * bases. The output should be backwards compatible with the output of
     * Catch2 v2 binaries.
     */
    void
    defaultListReporters( std::ostream& out,
                          std::vector<ReporterDescription> const& descriptions,
                          Verbosity verbosity );

    /**
     * Lists listeners descriptions to the provided stream in user-friendly
     * format
     */
    void defaultListListeners( std::ostream& out,
                               std::vector<ListenerDescription> const& descriptions );

    /**
     * Lists tag information to the provided stream in user-friendly format
     *
     * Used as the default listing implementation by the first party reporter
     * bases. The output should be backwards compatible with the output of
     * Catch2 v2 binaries.
     */
    void defaultListTags( std::ostream& out, std::vector<TagInfo> const& tags, bool isFiltered );

    /**
     * Lists test case information to the provided stream in user-friendly
     * format
     *
     * Used as the default listing implementation by the first party reporter
     * bases. The output is backwards compatible with the output of Catch2
     * v2 binaries, and also supports the format specific to the old
     * `--list-test-names-only` option, for people who used it in integrations.
     */
    void defaultListTests( std::ostream& out,
                           ColourImpl* streamColour,
                           std::vector<TestCaseHandle> const& tests,
                           bool isFiltered,
                           Verbosity verbosity );

    /**
     * Prints test run totals to the provided stream in user-friendly format
     *
     * Used by the console and compact reporters.
     */
    void printTestRunTotals( std::ostream& stream,
                      ColourImpl& streamColour,
                      Totals const& totals );

} // end namespace Catch

#endif // CATCH_REPORTER_HELPERS_HPP_INCLUDED


#ifndef CATCH_REPORTER_JUNIT_HPP_INCLUDED
#define CATCH_REPORTER_JUNIT_HPP_INCLUDED



namespace Catch {

    class JunitReporter final : public CumulativeReporterBase {
    public:
        JunitReporter(ReporterConfig&& _config);

        ~JunitReporter() override = default;

        static std::string getDescription();

        void testRunStarting(TestRunInfo const& runInfo) override;

        void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
        void assertionEnded(AssertionStats const& assertionStats) override;

        void testCaseEnded(TestCaseStats const& testCaseStats) override;

        void testRunEndedCumulative() override;

    private:
        void writeRun(TestRunNode const& testRunNode, double suiteTime);

        void writeTestCase(TestCaseNode const& testCaseNode);

        void writeSection( std::string const& className,
                           std::string const& rootName,
                           SectionNode const& sectionNode,
                           bool testOkToFail );

        void writeAssertions(SectionNode const& sectionNode);
        void writeAssertion(AssertionStats const& stats);

        XmlWriter xml;
        Timer suiteTimer;
        std::string stdOutForSuite;
        std::string stdErrForSuite;
        unsigned int unexpectedExceptions = 0;
        bool m_okToFail = false;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_JUNIT_HPP_INCLUDED


#ifndef CATCH_REPORTER_MULTI_HPP_INCLUDED
#define CATCH_REPORTER_MULTI_HPP_INCLUDED


namespace Catch {

    class MultiReporter final : public IEventListener {
        /*
         * Stores all added reporters and listeners
         *
         * All Listeners are stored before all reporters, and individual
         * listeners/reporters are stored in order of insertion.
         */
        std::vector<IEventListenerPtr> m_reporterLikes;
        bool m_haveNoncapturingReporters = false;

        // Keep track of how many listeners we have already inserted,
        // so that we can insert them into the main vector at the right place
        size_t m_insertedListeners = 0;

        void updatePreferences(IEventListener const& reporterish);

    public:
        using IEventListener::IEventListener;

        void addListener( IEventListenerPtr&& listener );
        void addReporter( IEventListenerPtr&& reporter );

    public: // IEventListener

        void noMatchingTestCases( StringRef unmatchedSpec ) override;
        void fatalErrorEncountered( StringRef error ) override;
        void reportInvalidTestSpec( StringRef arg ) override;

        void benchmarkPreparing( StringRef name ) override;
        void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
        void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) override;
        void benchmarkFailed( StringRef error ) override;

        void testRunStarting( TestRunInfo const& testRunInfo ) override;
        void testCaseStarting( TestCaseInfo const& testInfo ) override;
        void testCasePartialStarting(TestCaseInfo const& testInfo, uint64_t partNumber) override;
        void sectionStarting( SectionInfo const& sectionInfo ) override;
        void assertionStarting( AssertionInfo const& assertionInfo ) override;

        void assertionEnded( AssertionStats const& assertionStats ) override;
        void sectionEnded( SectionStats const& sectionStats ) override;
        void testCasePartialEnded(TestCaseStats const& testInfo, uint64_t partNumber) override;
        void testCaseEnded( TestCaseStats const& testCaseStats ) override;
        void testRunEnded( TestRunStats const& testRunStats ) override;

        void skipTest( TestCaseInfo const& testInfo ) override;

        void listReporters(std::vector<ReporterDescription> const& descriptions) override;
        void listListeners(std::vector<ListenerDescription> const& descriptions) override;
        void listTests(std::vector<TestCaseHandle> const& tests) override;
        void listTags(std::vector<TagInfo> const& tags) override;


    };

} // end namespace Catch

#endif // CATCH_REPORTER_MULTI_HPP_INCLUDED


#ifndef CATCH_REPORTER_REGISTRARS_HPP_INCLUDED
#define CATCH_REPORTER_REGISTRARS_HPP_INCLUDED


#include <type_traits>

namespace Catch {

    namespace Detail {

        template <typename T, typename = void>
        struct has_description : std::false_type {};

        template <typename T>
        struct has_description<
            T,
            void_t<decltype( T::getDescription() )>>
            : std::true_type {};

        //! Indirection for reporter registration, so that the error handling is
        //! independent on the reporter's concrete type
        void registerReporterImpl( std::string const& name,
                                   IReporterFactoryPtr reporterPtr );
        //! Actually registers the factory, independent on listener's concrete type
        void registerListenerImpl( Detail::unique_ptr<EventListenerFactory> listenerFactory );
    } // namespace Detail

    class IEventListener;
    using IEventListenerPtr = Detail::unique_ptr<IEventListener>;

    template <typename T>
    class ReporterFactory : public IReporterFactory {

        IEventListenerPtr create( ReporterConfig&& config ) const override {
            return Detail::make_unique<T>( CATCH_MOVE(config) );
        }

        std::string getDescription() const override {
            return T::getDescription();
        }
    };


    template<typename T>
    class ReporterRegistrar {
    public:
        explicit ReporterRegistrar( std::string const& name ) {
            registerReporterImpl( name,
                                  Detail::make_unique<ReporterFactory<T>>() );
        }
    };

    template<typename T>
    class ListenerRegistrar {

        class TypedListenerFactory : public EventListenerFactory {
            StringRef m_listenerName;

            std::string getDescriptionImpl( std::true_type ) const {
                return T::getDescription();
            }

            std::string getDescriptionImpl( std::false_type ) const {
                return "(No description provided)";
            }

        public:
            TypedListenerFactory( StringRef listenerName ):
                m_listenerName( listenerName ) {}

            IEventListenerPtr create( IConfig const* config ) const override {
                return Detail::make_unique<T>( config );
            }

            StringRef getName() const override {
                return m_listenerName;
            }

            std::string getDescription() const override {
                return getDescriptionImpl( Detail::has_description<T>{} );
            }
        };

    public:
        ListenerRegistrar(StringRef listenerName) {
            registerListenerImpl( Detail::make_unique<TypedListenerFactory>(listenerName) );
        }
    };
}

#if !defined(CATCH_CONFIG_DISABLE)

#    define CATCH_REGISTER_REPORTER( name, reporterType )                      \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                              \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
        namespace {                                                            \
            Catch::ReporterRegistrar<reporterType> INTERNAL_CATCH_UNIQUE_NAME( \
                catch_internal_RegistrarFor )( name );                         \
        }                                                                      \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#    define CATCH_REGISTER_LISTENER( listenerType )                            \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                              \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
        namespace {                                                            \
            Catch::ListenerRegistrar<listenerType> INTERNAL_CATCH_UNIQUE_NAME( \
                catch_internal_RegistrarFor )( #listenerType##_catch_sr );     \
        }                                                                      \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

#else // CATCH_CONFIG_DISABLE

#define CATCH_REGISTER_REPORTER(name, reporterType)
#define CATCH_REGISTER_LISTENER(listenerType)

#endif // CATCH_CONFIG_DISABLE

#endif // CATCH_REPORTER_REGISTRARS_HPP_INCLUDED


#ifndef CATCH_REPORTER_SONARQUBE_HPP_INCLUDED
#define CATCH_REPORTER_SONARQUBE_HPP_INCLUDED



namespace Catch {

    class SonarQubeReporter final : public CumulativeReporterBase {
    public:
        SonarQubeReporter(ReporterConfig&& config)
        : CumulativeReporterBase(CATCH_MOVE(config))
        , xml(m_stream) {
            m_preferences.shouldRedirectStdOut = true;
            m_preferences.shouldReportAllAssertions = true;
            m_shouldStoreSuccesfulAssertions = false;
        }

        ~SonarQubeReporter() override = default;

        static std::string getDescription() {
            using namespace std::string_literals;
            return "Reports test results in the Generic Test Data SonarQube XML format"s;
        }

        void testRunStarting( TestRunInfo const& testRunInfo ) override;

        void testRunEndedCumulative() override {
            writeRun( *m_testRun );
            xml.endElement();
        }

        void writeRun( TestRunNode const& groupNode );

        void writeTestFile(StringRef filename, std::vector<TestCaseNode const*> const& testCaseNodes);

        void writeTestCase(TestCaseNode const& testCaseNode);

        void writeSection(std::string const& rootName, SectionNode const& sectionNode, bool okToFail);

        void writeAssertions(SectionNode const& sectionNode, bool okToFail);

        void writeAssertion(AssertionStats const& stats, bool okToFail);

    private:
        XmlWriter xml;
    };


} // end namespace Catch

#endif // CATCH_REPORTER_SONARQUBE_HPP_INCLUDED


#ifndef CATCH_REPORTER_TAP_HPP_INCLUDED
#define CATCH_REPORTER_TAP_HPP_INCLUDED


namespace Catch {

    class TAPReporter final : public StreamingReporterBase {
    public:
        TAPReporter( ReporterConfig&& config ):
            StreamingReporterBase( CATCH_MOVE(config) ) {
            m_preferences.shouldReportAllAssertions = true;
        }
        ~TAPReporter() override = default;

        static std::string getDescription() {
            using namespace std::string_literals;
            return "Reports test results in TAP format, suitable for test harnesses"s;
        }

        void testRunStarting( TestRunInfo const& testInfo ) override;

        void noMatchingTestCases( StringRef unmatchedSpec ) override;

        void assertionEnded(AssertionStats const& _assertionStats) override;

        void testRunEnded(TestRunStats const& _testRunStats) override;

    private:
        std::size_t counter = 0;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_TAP_HPP_INCLUDED


#ifndef CATCH_REPORTER_TEAMCITY_HPP_INCLUDED
#define CATCH_REPORTER_TEAMCITY_HPP_INCLUDED


#include <cstring>

#ifdef __clang__
#   pragma clang diagnostic push
#   pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch {

    class TeamCityReporter final : public StreamingReporterBase {
    public:
        TeamCityReporter( ReporterConfig&& _config )
        :   StreamingReporterBase( CATCH_MOVE(_config) )
        {
            m_preferences.shouldRedirectStdOut = true;
        }

        ~TeamCityReporter() override;

        static std::string getDescription() {
            using namespace std::string_literals;
            return "Reports test results as TeamCity service messages"s;
        }

        void testRunStarting( TestRunInfo const& groupInfo ) override;
        void testRunEnded( TestRunStats const& testGroupStats ) override;


        void assertionEnded(AssertionStats const& assertionStats) override;

        void sectionStarting(SectionInfo const& sectionInfo) override {
            m_headerPrintedForThisSection = false;
            StreamingReporterBase::sectionStarting( sectionInfo );
        }

        void testCaseStarting(TestCaseInfo const& testInfo) override;

        void testCaseEnded(TestCaseStats const& testCaseStats) override;

    private:
        void printSectionHeader(std::ostream& os);

        bool m_headerPrintedForThisSection = false;
        Timer m_testTimer;
    };

} // end namespace Catch

#ifdef __clang__
#   pragma clang diagnostic pop
#endif

#endif // CATCH_REPORTER_TEAMCITY_HPP_INCLUDED


#ifndef CATCH_REPORTER_XML_HPP_INCLUDED
#define CATCH_REPORTER_XML_HPP_INCLUDED




namespace Catch {
    class XmlReporter : public StreamingReporterBase {
    public:
        XmlReporter(ReporterConfig&& _config);

        ~XmlReporter() override;

        static std::string getDescription();

        virtual std::string getStylesheetRef() const;

        void writeSourceInfo(SourceLineInfo const& sourceInfo);

    public: // StreamingReporterBase

        void testRunStarting(TestRunInfo const& testInfo) override;

        void testCaseStarting(TestCaseInfo const& testInfo) override;

        void sectionStarting(SectionInfo const& sectionInfo) override;

        void assertionStarting(AssertionInfo const&) override;

        void assertionEnded(AssertionStats const& assertionStats) override;

        void sectionEnded(SectionStats const& sectionStats) override;

        void testCaseEnded(TestCaseStats const& testCaseStats) override;

        void testRunEnded(TestRunStats const& testRunStats) override;

        void benchmarkPreparing( StringRef name ) override;
        void benchmarkStarting(BenchmarkInfo const&) override;
        void benchmarkEnded(BenchmarkStats<> const&) override;
        void benchmarkFailed( StringRef error ) override;

        void listReporters(std::vector<ReporterDescription> const& descriptions) override;
        void listListeners(std::vector<ListenerDescription> const& descriptions) override;
        void listTests(std::vector<TestCaseHandle> const& tests) override;
        void listTags(std::vector<TagInfo> const& tags) override;

    private:
        Timer m_testCaseTimer;
        XmlWriter m_xml;
        int m_sectionDepth = 0;
    };

} // end namespace Catch

#endif // CATCH_REPORTER_XML_HPP_INCLUDED

#endif // CATCH_REPORTERS_ALL_HPP_INCLUDED

#endif // CATCH_ALL_HPP_INCLUDED
#endif // CATCH_AMALGAMATED_HPP_INCLUDED


================================================
FILE: include/tortellini.hh
================================================
#ifndef TORTELLINI_HH__
#define TORTELLINI_HH__
#pragma once

#ifndef NOMINMAX
#	define _TORTELLINI_UNDEFINE_NOMINMAX_PLEASE
#	define NOMINMAX
#endif

/*
	                                ⣀⣀⣀⣀⣀⣀⣀⡀
	                         ⢀⠄         ⠉⠉⠉⠛⠛⠿⠿⢶⣶⣤⣄⡀
	                      ⢀⣠⠞⠁                   ⠈⠉⠛⠻⠶⣄⡀
	                    ⢀⣴⠟⠁       ⣀⣠⣤⠴⠖⠒⠈⠉    ⠑⠲⢤⣄⡀   ⠉⠑⠤⡀
	                   ⣰⡿⠃     ⣠⣴⡾⠟⠋⠁             ⠉⠻⢷⣦⡀
	                  ⣼⡟    ⢀⣴⡿⠛⠁                    ⠉⠻⣦     ⡀
	                 ⣼⡟    ⣠⡿⠋                 ⣀⣤⡀      ⠑⠄   ⢰⡀
	                ⢸⡟    ⣰⠟    ⢀⣤⣦⡄          ⠰⣿⣿⣿            ⣇
	                ⣿⠁   ⢠⡏     ⠸⣿⣿⡟   ⣤⣤⣀⣠⣾⣦  ⠉⠉⠁       ⢰    ⣿
	               ⢀⡏    ⢸            ⡀⠙⠿⣿⣿⠟⠁           ⢠⡏    ⣿⡄
	               ⢸⠃    ⠈           ⢸⣷                ⣴⡟     ⣿⠃
	               ⠘                 ⠘⠡⢤⣤⣀⣀          ⣠⣾⠟     ⢸⣿
	                                    ⠉⠙⠛⠛⠓     ⢀⣴⠾⠋⠁      ⣼⠇
	                       ⠑⠲⢶⣤⣤⣤⣤⣄⣀⣀⣀⣀  ⡼      ⠐⠊⠉         ⢠⡟
	                ⠸⣄         ⠈⠉⠉⠉⠉⠁   ⢸⡇                 ⢀⡞
	                 ⢻⣦                 ⢸⡇              ⢀⠄⢀⠎
	                  ⠹⢷⡀               ⠘⣿⡀         ⢀⣠⣴⠞⠁
	                    ⠑                ⠘⢧      ⢀⣠⡶⠟⠋⠁ ⠠⣷
	                       ⠒⠤⣤⣀⣀           ⠑    ⠊⠉     ⣀ ⠈
	                          ⠉⠛⠻⠿⠶⠶⠤⠤⠄  ⠠⠤⠤⣤⣤⣤⣤⣶⣶⡶⠶⠞⠛⠉

	                                TORTELLINI
	                  The really, really dumb INI file format.

	                           Made for Tide Online.
	                         Cooked up on 6 Mar, 2020.

	----------------------------------------------------------------------------

	Released under a dual-license. Take your pick, no whammies.

	                                 UNLICENSE

	This is free and unencumbered software released into the public domain.

	Anyone is free to copy, modify, publish, use, compile, sell, or
	distribute this software, either in source code form or as a compiled
	binary, for any purpose, commercial or non-commercial, and by any
	means.

	In jurisdictions that recognize copyright laws, the author or authors
	of this software dedicate any and all copyright interest in the
	software to the public domain. We make this dedication for the benefit
	of the public at large and to the detriment of our heirs and
	successors. We intend this dedication to be an overt act of
	relinquishment in perpetuity of all present and future rights to this
	software under copyright law.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	OTHER DEALINGS IN THE SOFTWARE.

	For more information, please refer to <http://unlicense.org/>

	                                MIT LICENSE

	Copyright (c) 2020 Josh Junon

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	SOFTWARE.

	----------------------------------------------------------------------------
*/

#include <map>
#include <string>
#include <iostream>
#include <iomanip>
#include <algorithm>
#include <locale>
#include <sstream>
#include <type_traits>
#include <limits>
#include <cctype>

namespace tortellini {

class ini final {
	friend class value;

	struct case_insensitive {
		struct case_insensitive_compare {
			bool operator()(const unsigned char &l, const unsigned char &r) const {
				// < for map
				return std::tolower(l) < std::tolower(r);
			}

			inline static bool compare(const unsigned char &l, const unsigned char &r) {
				// == for OOB calls
				return std::tolower(l) == std::tolower(r);
			}
		};

		static inline bool compare(const std::string &l, const std::string &r) noexcept {
			// std::equal (like ==) for OOB calls
			if (l.size() != r.size()) {
				return false;
			}

			return std::equal(
				l.begin(), l.end(),
				r.begin(),
				case_insensitive_compare::compare
			);
		}

		inline bool operator()(const std::string &l, const std::string &r) const noexcept {
			// lex compare (like <) for map
			return std::lexicographical_compare(
				l.begin(), l.end(),
				r.begin(), r.end(),
				case_insensitive_compare()
			);
		}
	};

public:
	class section;

	class value final {
		friend section;

		std::string &_value;

		inline value(std::string &_value)
		: _value(_value)
		{}

		value(const value &) = delete;
		void operator=(const value &) = delete;

		inline value(value &&) = default;

		template <typename T, T (*Fn)(const std::string &, size_t *)>
		static inline T strparse(const std::string &s, T fallback) noexcept {
			if (s.empty()) return fallback;

			try {
				size_t idx;
				T res = Fn(s, &idx);
				return s[idx] ? fallback : res;
			} catch (std::out_of_range &) {
				return fallback;
			} catch (std::invalid_argument &) {
				return fallback;
			}
		}

		template <typename T, T (*Fn)(const std::string &, size_t *, int)>
		static inline T strparse(const std::string &s, T fallback) noexcept {
			if (s.empty()) return fallback;

			try {
				size_t idx;
				T res = Fn(s, &idx, 0);
				return s[idx] ? fallback : res;
			} catch (std::out_of_range &) {
				return fallback;
			} catch (std::invalid_argument &) {
				return fallback;
			}
		}

		template <typename T>
		typename std::enable_if<
			!std::is_convertible<T, std::string>::value,
			std::string
		>::type to_string(T r) const {
			if (std::is_same<T, bool>::value) {
				return r ? "yes" : "no";
			} else if (std::is_floating_point<T>::value) {
				std::ostringstream out;
				out << std::setprecision(std::numeric_limits<T>::max_digits10 - 1) << r;
				return out.str();
			} else {
				return std::to_string(r);
			}
		}

		template <typename T>
		typename std::enable_if<
			std::is_convertible<T, std::string>::value,
			std::string
		>::type to_string(T r) const {
			return r;
		}

	public:
		template <typename T>
		inline value & operator =(const T &v) {
			_value = to_string(v);
			return *this;
		}

		inline bool operator |(bool fallback) const {
			return _value.empty()
				? fallback
				: (
					   case_insensitive::compare(_value, "1")
					|| case_insensitive::compare(_value, "true")
					|| case_insensitive::compare(_value, "yes")
				);
		}

		inline std::string operator |(std::string fallback) const {
			return _value.empty() ? fallback : _value;
		}

		inline std::string operator |(const char *fallback) const {
			return _value.empty() ? fallback : _value;
		}

		inline unsigned long operator |(unsigned long fallback) const {
			return strparse<unsigned long, std::stoul>(_value, fallback);
		}

		inline unsigned long long operator |(unsigned long long fallback) const {
			return strparse<unsigned long long, std::stoull>(_value, fallback);
		}

		inline long operator |(long fallback) const {
			return strparse<long, std::stol>(_value, fallback);
		}

		inline long long operator |(long long fallback) const {
			return strparse<long long, std::stoll>(_value, fallback);
		}

		inline float operator |(float fallback) const {
			return strparse<float, std::stof>(_value, fallback);
		}

		inline double operator |(double fallback) const {
			return strparse<double, std::stod>(_value, fallback);
		}

		inline long double operator |(long double fallback) const {
			return strparse<long double, std::stold>(_value, fallback);
		}

		inline int operator |(int fallback) const {
			return strparse<int, std::stoi>(_value, fallback);
		}

		inline unsigned int operator |(unsigned int fallback) const {
			/*
				This is necessary because there is no std::stou.
			*/
			try {
				size_t idx;
				unsigned long ul = std::stoul(_value, &idx, 0);

				if (
					   sizeof(unsigned int) != sizeof(unsigned long)
					&& ul > std::numeric_limits<unsigned int>::max()
				) {
					// out of range
					return fallback;
				}

				return static_cast<unsigned int>(ul);
			} catch (std::out_of_range &) {
				return fallback;
			} catch (std::invalid_argument &) {
				return fallback;
			}
		}
	};

	class section final {
		friend class ini;

		std::map<std::string, std::string, case_insensitive> &_mapref;

		inline section(std::map<std::string, std::string, case_insensitive> &_mapref)
		: _mapref(_mapref)
		{}

		section(const section &) = delete;
		void operator=(const section &) = delete;

		inline section(section &&) = default;

	public:
		inline value operator[](std::string key) const {
			return value(_mapref[key]);
		}
	};

private:
	std::map<std::string, std::map<std::string, std::string, case_insensitive>, case_insensitive> _sections;

	static inline void ltrim(std::string &s) {
		s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](int ch) {
			return !std::isspace(ch);
		}));
	}

	static inline void rtrim(std::string &s) {
		s.erase(std::find_if(s.rbegin(), s.rend(), [](int ch) {
			return !std::isspace(ch);
		}).base(), s.end());
	}

	static inline void trim(std::string &s) {
		ltrim(s);
		rtrim(s);
	}

public:
	class iterator {
		friend class ini;
		using section_iterator = decltype(_sections)::iterator;
		section_iterator _itr;
		inline iterator(section_iterator itr)
		: _itr(itr)
		{}

	public:
		struct section_pair {
			std::string name;
			::tortellini::ini::section section;
		};

		inline ~iterator() = default;

		inline section_pair operator*() noexcept {
			return { _itr->first, section(_itr->second) };
		}

		inline iterator & operator++() {
			_itr++;
			return *this;
		}

		inline bool operator==(const iterator &other) const {
			return _itr == other._itr;
		}
		inline bool operator!=(const iterator &other) const {
			return _itr != other._itr;
		}
	};

	inline ini() = default;
	inline ini(const ini &) = default;
	inline ini(ini &&) = default;

	inline section operator[](std::string name) noexcept {
		return section(_sections[name]);
	}

	inline iterator begin() {
		return {_sections.begin()};
	}

	inline iterator end() {
		return {_sections.end()};
	}

	template <typename TStream>
	friend inline TStream & operator>>(TStream &stream, tortellini::ini &ini) {
		std::string line;
		std::string section_name = "";
		bool first_line = true;

		while (std::getline(stream, line)) {
			if (first_line) {
				first_line = false;

				// trim BOM if it is present.
				if (line.length() >= 3 && line.substr(0, 3) == "\xEF\xBB\xBF") {
					line = line.substr(3);
				}
			}

			trim(line);

			if (line.empty()) continue;

			if (line[0] == '[') {
				size_t idx = line.find_first_of("]");
				if (idx == std::string::npos) continue; // invalid, drop line
				section_name = line.substr(1, idx - 1);
				trim(section_name);
				continue;
			}

			std::string key;
			std::string value;

			size_t idx = line.find_first_of("=");
			if (idx == std::string::npos) continue; // invalid, drop line

			key = line.substr(0, idx);
			trim(key);

			if (key.empty()) continue;

			value = line.substr(idx + 1);
			trim(value);

			if (value.empty()) continue; // not really "invalid" but we choose not to keep it

			ini[section_name][key] = value;
		}

		return stream;
	}

	template <typename TStream>
	friend inline TStream & operator<<(TStream &stream, const tortellini::ini &ini) {
		bool has_sections = false;

		// force emit empty section if it exists
		{
			const auto &itr = ini._sections.find("");
			if (itr != ini._sections.cend()) {
				for (const auto &kv : itr->second) {
					if (kv.first.empty() || kv.second.empty()) continue;
					stream << kv.first << " = " << kv.second << std::endl;
					has_sections = true;
				}
			}
		}

		for (const auto &section : ini._sections) {
			if (section.first.empty()) continue; // already emitted

			bool has_emitted = false;

			for (const auto &kv : section.second) {
				if (kv.first.empty() || kv.second.empty()) continue;

				if (!has_emitted) {
					if (has_sections) stream << std::endl;
					stream << '[' << section.first << ']' << std::endl;
					has_emitted = true;
					has_sections = true;
				}

				stream << kv.first << " = " << kv.second << std::endl;
			}
		}

		return stream;
	}
};

}

#ifdef _TORTELLINI_UNDEFINE_NOMINMAX_PLEASE
#	undef NOMINMAX
#endif
#endif


================================================
FILE: test.cc
================================================
#define CATCH_CONFIG_MAIN
#include "catch2/catch_amalgamated.hpp"
#include "../include/tortellini.hh"

#include <iostream>
#include <string>
#include <sstream>

using namespace Catch;

namespace{
template<typename T>
void test_read(const std::string text, typename std::enable_if<!std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	std::stringstream iss;
	iss << "v = " << text << "\n";
	iss >> ini;
	const auto uut = ini[""]["v"] | T{};
	CHECK(uut == expected);
}

template<typename T>
void test_read(const std::string text, typename std::enable_if<std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	std::stringstream iss;
	iss << "v = " << text << "\n";
	iss >> ini;
	const auto uut = ini[""]["v"] | T{};
	CHECK(uut == Approx(expected));
}

template<typename T>
void test_default_wrong_type(const typename std::enable_if<std::is_integral<T>::value, T>::type expected){
	tortellini::ini ini;
	const auto text = "v = hello\n";
	std::istringstream iss{text};
	iss >> ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == expected);
}

template<typename T>
void test_default_wrong_type(const typename std::enable_if<std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	const auto text = "v = hello\n";
	std::istringstream iss{text};
	iss >> ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == Approx(expected));
}

template<typename T>
void test_oor(const typename std::enable_if<std::is_integral<T>::value && !std::is_same<bool, T>::value, T>::type expected){
	tortellini::ini ini;
	const auto max = std::to_string(std::numeric_limits<T>::max());
	const auto oor = max + "00";
	const auto text = "v = " + oor + "\n";
	std::istringstream iss{text};
	iss >> ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == expected);
}

template<typename T>
void test_oor(const typename std::enable_if<std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	const auto max = std::to_string(std::numeric_limits<T>::max());
	const auto oor = "1" + max;
	const auto text = "v = " + oor + "\n";
	std::istringstream iss{text};
	iss >> ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == Approx(expected));
}

template<typename T>
void test_oor(const typename std::enable_if<std::is_same<T, bool>::value, T>::type expected){
	tortellini::ini ini;
	const auto text = "v = 5\n";
	std::istringstream iss{text};
	iss >> ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(!uut);
}

template<typename T>
void test_empty(const typename std::enable_if<!std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == expected);
}

template<typename T>
void test_empty(const typename std::enable_if<std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	const auto uut = ini[""]["v"] | expected;
	CHECK(uut == Approx(expected));
}

template<typename T>
void test_create(const typename std::enable_if<!std::is_floating_point<T>::value, T>::type value, const std::string alternative_text){
	tortellini::ini ini;
	ini[""]["uut"] = value;
	std::ostringstream oss;
	oss << ini;

	std::stringstream ss;
	ss << "uut = " << alternative_text << "\n";
	CHECK(oss.str() == ss.str());
}

template<typename T>
void test_create(const typename std::enable_if<std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	ini[""]["uut"] = expected;
	std::ostringstream oss;
	oss << ini;

	std::stringstream ss;
	ss << "uut = " << std::setprecision(std::numeric_limits<T>::max_digits10 -1) << expected << "\n";
	CHECK(oss.str() == ss.str());
}
}
TEST_CASE("Reading an ini"){
	tortellini::ini ini;

	SECTION("Can read in"){
		std::istringstream iss{"hello"};
		iss >> ini;
	}

	SECTION("Can read a global section"){
		const auto text = std::string{"naked = rat\n"};
		std::istringstream ss{text};
		ss >> ini;
		CHECK(std::string{ini[""]["naked"] | "none"} == "rat");
	}

	SECTION("Can read another section"){
		const auto text = std::string{"[hello]\nnaked = rat\n"};
		std::istringstream ss{text};
		ss >> ini;
		CHECK(std::string{ini["hello"]["naked"] | "none"} == "rat");
	}

	SECTION("Can read periods in key names"){
		const auto text = std::string{"foo.0 = 10\nfoo.1 = 20\n"};
		std::istringstream ss{text};
		ss >> ini;
		CHECK((ini[""]["foo.0"] | 0) == 10);
		CHECK((ini[""]["foo.1"] | 0) == 20);
	}

	SECTION("int"){
		test_read<int>("5", 5);
	}

	SECTION("string"){
		test_read<std::string>("hello", "hello");
	}

	SECTION("const char *"){
		test_read<const char*>("hello", "hello");
	}

	SECTION("char"){
		test_read<char>("4", '4'-0x30);
		test_read<unsigned char>("3", '3'-0x30);
	}

	SECTION("bool"){
		test_read<bool>("1", true);
		test_read<bool>("yes", true);
		test_read<bool>("true", true);
		test_read<bool>("0", false);
		test_read<bool>("no", false);
		test_read<bool>("false", false);
	}

	SECTION("case insensitive header"){
		const auto text = std::string{"[HelLo]\nv = 4\n"};
		std::istringstream ss{text};
		ss >> ini;
		CHECK(int{ini["HELLO"]["v"] | 9999} == 4);
	}

	SECTION("case insensitive variable name"){
		const auto text = std::string{"[hello]\nv = 4\n"};
		std::istringstream ss{text};
		ss >> ini;
		CHECK(int{ini["hello"]["V"] | 9999} == 4);
	}

	SECTION("Can handle blank lines"){
		const auto text = std::string{"\n[hello]\n\n\nv = 4"};
		std::istringstream iss{text};
		iss >> ini;
		CHECK(int{ini["hello"]["v"] | -99} == 4);
	}

	SECTION("unsigned long"){
		test_read<unsigned long>("400", 400);
	}

	SECTION("long"){
		test_read<long>("400", 400);
		test_read<long>("-32", -32);
	}

	SECTION("float"){
		test_read<float>("433", 433);
		test_read<float>("433.3", 433.3);
		test_read<float>("-432.2", -432.2);
		test_read<float>("-32", -32);
	}

	SECTION("long double"){
		test_read<long double>("433", 433);
		test_read<long double>("433.3", 433.3);
		test_read<long double>("-433", -433);
		test_read<long double>("-433.2", -433.2);
	}
	SECTION("unsigned int"){
		test_read<unsigned int>("33", 33);
	}

}

TEST_CASE("File reading failures"){
	tortellini::ini ini;
	SECTION("Discards incomplete header"){
		const auto text = "[hello\nv = 4";
		std::istringstream ss{text};
		ss >> ini;
		CHECK(int{ini["hello"]["v"] | -99} == -99);
	}
}

TEST_CASE("Can use default when value is wrong type"){

	SECTION("unsigned long"){
		test_default_wrong_type<unsigned long>(5432);
	}

	SECTION("Int"){
		test_default_wrong_type<int>(543);
		test_default_wrong_type<int>(-5432);
	}

	SECTION("bool"){
		test_default_wrong_type<bool>(false); // All wrong types are false
	}

	SECTION("double"){
		test_default_wrong_type<double>(4.3);
		test_default_wrong_type<double>(-432.02);
	}

	SECTION("uint"){
		test_default_wrong_type<unsigned int>(432);
	}

	SECTION("unsigned long long"){
		test_default_wrong_type<unsigned long long>(5432);
	}

	SECTION("long long"){
		test_default_wrong_type<long long>(5432);
		test_default_wrong_type<long long>(-432);
	}

	SECTION("long"){
		test_default_wrong_type<long>(43);
		test_default_wrong_type<long>(-432);
	}

	SECTION("long double"){
		test_default_wrong_type<long double>(543.2);
		test_default_wrong_type<long double>(-80.9);
	}

	SECTION("float"){
		test_default_wrong_type<float>(432);
		test_default_wrong_type<float>(-4.3);
	}
}

TEST_CASE("Can use defaults when value out of range"){

	SECTION("Int"){
		test_oor<int>(44);
		test_oor<int>(-42);
	}

	SECTION("bool"){
		test_oor<bool>(true);
		test_oor<bool>(false);
	}

	SECTION("double"){
		test_oor<double>(66.601);
		test_oor<double>(-543);
	}

	SECTION("uint"){
		test_oor<unsigned int>(44);
	}

	SECTION("unsigned long"){
		test_oor<unsigned long>(666);
	}

	SECTION("unsigned long long"){
		test_oor<unsigned long long>(333333);
	}

	SECTION("long long"){
		test_oor<long long>(666);
		test_oor<long long>(-543234532);
	}

	SECTION("long"){
		test_oor<long>(3324);
		test_oor<long>(-432);
	}

	SECTION("long double"){
		test_oor<long double>(432.2);
		test_oor<long double>(-54345343);
	}

	SECTION("float"){
		test_oor<float>(5432.3);
		test_oor<float>(-4343.43);
	}
}


TEST_CASE("Can use defaults when nothing present"){

	SECTION("const char*"){
		test_empty<const char*>("Hhello world");
	}

	SECTION("String"){
		test_empty<std::string>("hello world");
	}

	SECTION("Int"){
		test_empty<int>(44);
		test_empty<int>(-432);
	}

	SECTION("bool"){
		test_empty<bool>(true);
		test_empty<bool>(false);
	}

	SECTION("double"){
		test_empty<double>(654.3);
		test_empty<double>(-432.2);
	}

	SECTION("uint"){
		test_empty<unsigned int>(543);
	}

	SECTION("unsigned long"){
		test_empty<unsigned long>(543);
	}

	SECTION("unsigned long long"){
		test_empty<unsigned long long>(543);
	}

	SECTION("long long"){
		test_empty<long long>(543);
		test_empty<long long>(-4321);
	}

	SECTION("long"){
		test_empty<long>(5432);
		test_empty<long>(-432);
	}

	SECTION("long double"){
		test_empty<long double>(543.5432);
		test_empty<long double>(-543.2);
	}

	SECTION("float"){
		test_empty<float>(543.3);
		test_empty<float>(-32.2);
	}
}

template<typename T>
void test_create(const typename std::enable_if<!std::is_floating_point<T>::value, T>::type expected){
	tortellini::ini ini;
	ini[""]["uut"] = expected;
	std::ostringstream oss;
	oss << ini;

	std::stringstream ss;
	ss << "uut = " << expected << "\n";
	CHECK(oss.str() == ss.str());
}



TEST_CASE("Creating an ini"){
	tortellini::ini ini;

	SECTION("Can create string"){
		test_create<std::string>("hello world");
	}

	SECTION("Char*"){
		test_create<const char*>("hello");
	}

	SECTION("Can create bool true"){
		test_create<bool>(true, "yes");
		test_create<bool>(false, "no");
	}

	SECTION("Can create int"){
		test_create<int>(10);
		test_create<int>(-33);
	}

	SECTION("Can create double"){
		test_create<double>(432.2);
		test_create<double>(-432.0);
	}

	SECTION("Can do float"){
		test_create<float>(5432.2);
		test_create<float>(-5432);
	}

	SECTION("Can do long double"){
		test_create<long double>(5432.0);
		test_create<long double>(-543.2);
	}

	SECTION("Can create unsigned int"){
		test_create<unsigned int>(543);
	}

	SECTION("Can create long"){
		test_create<long>(5432);
	}

	SECTION("Can create ulong"){
		test_create<unsigned long>(5432);
	}

	SECTION("Can create empty top section"){
		ini[""]["thing"] = "hello";
		std::ostringstream oss;
		oss << ini;
		CHECK(oss.str() == "thing = hello\n");
	}

	SECTION("Can create multiple sections"){
		ini[""]["global"] = "section";
		ini["sub"]["section"] = 99;
		std::ostringstream ss;
		ss << ini;
		CHECK(ss.str() == "global = section\n\n[sub]\nsection = 99\n");
	}

	SECTION("Can create multiple things in multiple sections"){
		ini[""]["global"] = "section";
		ini["sub"]["section"] = 99;
		std::ostringstream ss;
		ss << ini;
		CHECK(ss.str() == "global = section\n\n[sub]\nsection = 99\n");

		ini[""]["hello"] = "world";
		ini["sub"]["terfuge"] = 666.666;
		ss.str(std::string{});
		ss << ini;

		// because of the comparison operator I can be sure the items are in alphabetical order
		CHECK(ss.str() == "global = section\nhello = world\n\n[sub]\nsection = 99\nterfuge = 666.6660000000001\n");
	}

	SECTION("Skips UTF-8 BOM"){
		std::stringstream ss;
		ss << "\xEF\xBB\xBF""foo=bar\r\nworks=true\r\n";
		std::istringstream iss(ss.str());
		iss >> ini;
		CHECK((ini[""]["foo"] | "nope") == "bar");
		CHECK((ini[""]["works"] | false) == true);
	}
}

TEST_CASE("Iterating an INI") {
	tortellini::ini ini;
	std::istringstream("[foo]\nfoo1 = true\nfoo2 = 1234\n\n[bar]\nbar1 = hello\nbar2 = 12345") >> ini;

	SECTION("Can iterate sections") {
		for (const auto &section_pair : ini) {
			const auto &name = section_pair.name;
			const auto &section = section_pair.section;

			if (name == "foo") {
				CHECK((section["foo1"] | false) == true);
				CHECK((section["foo2"] | 0) == 1234);
			} else if (name == "bar") {
				CHECK((section["bar1"] | "") == "hello");
				CHECK((section["bar2"] | 0) == 12345);
			} else {
				FAIL("too many sections");
				break;
			}
		}
	}
}