mirror of
https://github.com/catchorg/Catch2.git
synced 2025-03-14 06:34:47 +01:00
644294df60
Catch2 suppresses unused variable and equivalent warnings in a couple
of places, but most importantly, in the declaration of autoRegistrar
in test registry. This warning gets triggered by NVHPC compiler. The
current patch adds three macros, namely:
CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
for the NVHPC Compiler which in particular prevents that warning from
occurring. The compiler is detected completely separately from the
other compilers in this patch, because from what I found out, NVHPC
defines __GNUC__ as well for some reason. (I suspect because it
advertises itself as GNU compatible.)
We also add a condition to make sure that the `__GNUC__` path is not
taken by the NVHPC compiler.
431 lines
17 KiB
C++
431 lines
17 KiB
C++
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// Copyright Catch2 Authors
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.txt or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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// SPDX-License-Identifier: BSL-1.0
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#ifndef CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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#define CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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// Detect a number of compiler features - by compiler
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// The following features are defined:
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//
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// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
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// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
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// CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
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// ****************
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// Note to maintainers: if new toggles are added please document them
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// in configuration.md, too
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// ****************
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// In general each macro has a _NO_<feature name> form
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// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
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// Many features, at point of detection, define an _INTERNAL_ macro, so they
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// can be combined, en-mass, with the _NO_ forms later.
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#include <catch2/internal/catch_platform.hpp>
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#include <catch2/catch_user_config.hpp>
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#ifdef __cplusplus
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# if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
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# define CATCH_CPP14_OR_GREATER
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# endif
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# if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
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# define CATCH_CPP17_OR_GREATER
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# endif
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#endif
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// Only GCC compiler should be used in this block, so other compilers trying to
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// mask themselves as GCC should be ignored.
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#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && !defined(__CUDACC__) && !defined(__LCC__) && !defined(__NVCOMPILER)
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "GCC diagnostic push" )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "GCC diagnostic pop" )
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// This only works on GCC 9+. so we have to also add a global suppression of Wparentheses
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// for older versions of GCC.
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# define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
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_Pragma( "GCC diagnostic ignored \"-Wparentheses\"" )
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
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_Pragma( "GCC diagnostic ignored \"-Wunused-variable\"" )
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# define CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS \
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_Pragma( "GCC diagnostic ignored \"-Wuseless-cast\"" )
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# define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__)
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#endif
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#if defined(__NVCOMPILER)
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "diag push" )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "diag pop" )
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "diag_suppress declared_but_not_referenced" )
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#endif
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#if defined(__CUDACC__) && !defined(__clang__)
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# ifdef __NVCC_DIAG_PRAGMA_SUPPORT__
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// New pragmas introduced in CUDA 11.5+
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "nv_diagnostic push" )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "nv_diagnostic pop" )
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "nv_diag_suppress 177" )
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# else
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS _Pragma( "diag_suppress 177" )
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# endif
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#endif
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// clang-cl defines _MSC_VER as well as __clang__, which could cause the
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// start/stop internal suppression macros to be double defined.
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#if defined(__clang__) && !defined(_MSC_VER)
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic pop" )
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#endif // __clang__ && !_MSC_VER
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#if defined(__clang__)
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// As of this writing, IBM XL's implementation of __builtin_constant_p has a bug
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// which results in calls to destructors being emitted for each temporary,
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// without a matching initialization. In practice, this can result in something
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// like `std::string::~string` being called on an uninitialized value.
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//
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// For example, this code will likely segfault under IBM XL:
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// ```
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// REQUIRE(std::string("12") + "34" == "1234")
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// ```
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//
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// Similarly, NVHPC's implementation of `__builtin_constant_p` has a bug which
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// results in calls to the immediately evaluated lambda expressions to be
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// reported as unevaluated lambdas.
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// https://developer.nvidia.com/nvidia_bug/3321845.
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//
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// Therefore, `CATCH_INTERNAL_IGNORE_BUT_WARN` is not implemented.
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# if !defined(__ibmxl__) && !defined(__CUDACC__) && !defined( __NVCOMPILER )
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# define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__) /* NOLINT(cppcoreguidelines-pro-type-vararg, hicpp-vararg) */
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# endif
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# define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
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_Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
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# define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )
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# define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"" )
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wunused-template\"" )
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# define CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS \
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_Pragma( "clang diagnostic ignored \"-Wcomma\"" )
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#endif // __clang__
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////////////////////////////////////////////////////////////////////////////////
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// We know some environments not to support full POSIX signals
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#if defined( CATCH_PLATFORM_WINDOWS ) || \
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defined( CATCH_PLATFORM_PLAYSTATION ) || \
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defined( __CYGWIN__ ) || \
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defined( __QNX__ ) || \
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defined( __EMSCRIPTEN__ ) || \
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defined( __DJGPP__ ) || \
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defined( __OS400__ )
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# define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
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#else
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# define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Assume that some platforms do not support getenv.
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#if defined(CATCH_PLATFORM_WINDOWS_UWP) || defined(CATCH_PLATFORM_PLAYSTATION)
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# define CATCH_INTERNAL_CONFIG_NO_GETENV
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#else
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# define CATCH_INTERNAL_CONFIG_GETENV
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Android somehow still does not support std::to_string
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#if defined(__ANDROID__)
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# define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Not all Windows environments support SEH properly
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#if defined(__MINGW32__)
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# define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// PS4
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#if defined(__ORBIS__)
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# define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Cygwin
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#ifdef __CYGWIN__
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// Required for some versions of Cygwin to declare gettimeofday
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// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
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# define _BSD_SOURCE
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// some versions of cygwin (most) do not support std::to_string. Use the libstd check.
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// https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html line 2812-2813
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# if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
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&& !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))
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# define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
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# endif
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#endif // __CYGWIN__
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////////////////////////////////////////////////////////////////////////////////
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// Visual C++
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#if defined(_MSC_VER)
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// We want to defer to nvcc-specific warning suppression if we are compiled
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// with nvcc masquerading for MSVC.
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# if !defined( __CUDACC__ )
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
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__pragma( warning( push ) )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
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__pragma( warning( pop ) )
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# endif
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// Universal Windows platform does not support SEH
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// Or console colours (or console at all...)
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# if defined(CATCH_PLATFORM_WINDOWS_UWP)
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# define CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32
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# else
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# define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
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# endif
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// MSVC traditional preprocessor needs some workaround for __VA_ARGS__
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// _MSVC_TRADITIONAL == 0 means new conformant preprocessor
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// _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
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# if !defined(__clang__) // Handle Clang masquerading for msvc
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# if !defined(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
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# define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
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# endif // MSVC_TRADITIONAL
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# endif // __clang__
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#endif // _MSC_VER
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#if defined(_REENTRANT) || defined(_MSC_VER)
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// Enable async processing, as -pthread is specified or no additional linking is required
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# define CATCH_INTERNAL_CONFIG_USE_ASYNC
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#endif // _MSC_VER
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////////////////////////////////////////////////////////////////////////////////
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// Check if we are compiled with -fno-exceptions or equivalent
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#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
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# define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// Embarcadero C++Build
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#if defined(__BORLANDC__)
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#define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// RTX is a special version of Windows that is real time.
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// This means that it is detected as Windows, but does not provide
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// the same set of capabilities as real Windows does.
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#if defined(UNDER_RTSS) || defined(RTX64_BUILD)
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#define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
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#define CATCH_INTERNAL_CONFIG_NO_ASYNC
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#define CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32
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#endif
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#if !defined(_GLIBCXX_USE_C99_MATH_TR1)
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#define CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER
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#endif
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// Various stdlib support checks that require __has_include
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#if defined(__has_include)
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// Check if string_view is available and usable
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#if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
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# define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
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#endif
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// Check if optional is available and usable
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# if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
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# define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
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# endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
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// Check if byte is available and usable
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# if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
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# include <cstddef>
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# if defined(__cpp_lib_byte) && (__cpp_lib_byte > 0)
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# define CATCH_INTERNAL_CONFIG_CPP17_BYTE
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# endif
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# endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
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// Check if variant is available and usable
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# if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
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# if defined(__clang__) && (__clang_major__ < 8)
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// work around clang bug with libstdc++ https://bugs.llvm.org/show_bug.cgi?id=31852
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// fix should be in clang 8, workaround in libstdc++ 8.2
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# include <ciso646>
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# if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
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# define CATCH_CONFIG_NO_CPP17_VARIANT
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# else
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# define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
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# endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
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# else
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# define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
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# endif // defined(__clang__) && (__clang_major__ < 8)
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# endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
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#endif // defined(__has_include)
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#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)
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# define CATCH_CONFIG_WINDOWS_SEH
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#endif
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// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
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#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)
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# define CATCH_CONFIG_POSIX_SIGNALS
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_GETENV) && !defined(CATCH_INTERNAL_CONFIG_NO_GETENV) && !defined(CATCH_CONFIG_NO_GETENV) && !defined(CATCH_CONFIG_GETENV)
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# define CATCH_CONFIG_GETENV
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#endif
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#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
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# define CATCH_CONFIG_CPP11_TO_STRING
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_NO_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_CPP17_OPTIONAL)
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# define CATCH_CONFIG_CPP17_OPTIONAL
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
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# define CATCH_CONFIG_CPP17_STRING_VIEW
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && !defined(CATCH_CONFIG_NO_CPP17_VARIANT) && !defined(CATCH_CONFIG_CPP17_VARIANT)
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# define CATCH_CONFIG_CPP17_VARIANT
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
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# define CATCH_CONFIG_CPP17_BYTE
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#endif
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#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
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# define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
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#endif
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#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)
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# define CATCH_CONFIG_NEW_CAPTURE
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#endif
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#if !defined( CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED ) && \
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!defined( CATCH_CONFIG_DISABLE_EXCEPTIONS ) && \
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!defined( CATCH_CONFIG_NO_DISABLE_EXCEPTIONS )
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# define CATCH_CONFIG_DISABLE_EXCEPTIONS
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_POLYFILL_ISNAN)
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# define CATCH_CONFIG_POLYFILL_ISNAN
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_USE_ASYNC) && !defined(CATCH_INTERNAL_CONFIG_NO_ASYNC) && !defined(CATCH_CONFIG_NO_USE_ASYNC) && !defined(CATCH_CONFIG_USE_ASYNC)
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# define CATCH_CONFIG_USE_ASYNC
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_NO_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
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# define CATCH_CONFIG_GLOBAL_NEXTAFTER
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#endif
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// Even if we do not think the compiler has that warning, we still have
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// to provide a macro that can be used by the code.
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#if !defined(CATCH_INTERNAL_START_WARNINGS_SUPPRESSION)
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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
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#endif
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#if !defined(CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION)
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_USELESS_CAST_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
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#endif
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// The goal of this macro is to avoid evaluation of the arguments, but
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// still have the compiler warn on problems inside...
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#if !defined(CATCH_INTERNAL_IGNORE_BUT_WARN)
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# define CATCH_INTERNAL_IGNORE_BUT_WARN(...)
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#endif
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#if defined(__APPLE__) && defined(__apple_build_version__) && (__clang_major__ < 10)
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# undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
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#elif defined(__clang__) && (__clang_major__ < 5)
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# undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
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#endif
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#if !defined(CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_COMMA_WARNINGS
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#endif
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#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
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#define CATCH_TRY if ((true))
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#define CATCH_CATCH_ALL if ((false))
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#define CATCH_CATCH_ANON(type) if ((false))
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#else
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#define CATCH_TRY try
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#define CATCH_CATCH_ALL catch (...)
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#define CATCH_CATCH_ANON(type) catch (type)
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#endif
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#if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
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#define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
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#endif
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#if defined( CATCH_PLATFORM_WINDOWS ) && \
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!defined( CATCH_CONFIG_COLOUR_WIN32 ) && \
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!defined( CATCH_CONFIG_NO_COLOUR_WIN32 ) && \
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!defined( CATCH_INTERNAL_CONFIG_NO_COLOUR_WIN32 )
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# define CATCH_CONFIG_COLOUR_WIN32
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#endif
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#if defined( CATCH_CONFIG_SHARED_LIBRARY ) && defined( _MSC_VER ) && \
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!defined( CATCH_CONFIG_STATIC )
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# ifdef Catch2_EXPORTS
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# define CATCH_EXPORT //__declspec( dllexport ) // not needed
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# else
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# define CATCH_EXPORT __declspec( dllimport )
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# endif
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#else
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# define CATCH_EXPORT
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#endif
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#endif // CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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