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catch2/include/internal/catch_compiler_capabilities.h
Joachim Meyer ce2560ca95 Integrate Nonius benchmark into Catch2 
Changes done to Nonius:
* Moved things into "Catch::Benchmark" namespace
* Benchmarks were integrated with `TEST_CASE`/`SECTION`/`GENERATE` macros
* Removed Nonius's parameters for benchmarks, Generators should be used instead
* Added relevant methods to the reporter interface (default-implemented, to avoid
breaking existing 3rd party reporters)
* Async processing is guarded with `_REENTRANT` macro for GCC/Clang, used by default
on MSVC
* Added a macro `CATCH_CONFIG_DISABLE_BENCHMARKING` that removes all traces of
benchmarking from Catch
2019-06-06 19:33:37 +02:00

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/*
* Created by Phil on 15/04/2013.
* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
// 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.
#include "catch_platform.h"
#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
#if defined(CATCH_CPP17_OR_GREATER)
# define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif
#ifdef __clang__
# define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
_Pragma( "clang diagnostic push" ) \
_Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
_Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
# define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
_Pragma( "clang diagnostic pop" )
# define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
_Pragma( "clang diagnostic push" ) \
_Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
# define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
_Pragma( "clang diagnostic pop" )
# define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
_Pragma( "clang diagnostic push" ) \
_Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )
# define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS \
_Pragma( "clang diagnostic pop" )
# define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
_Pragma( "clang diagnostic push" ) \
_Pragma( "clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"" )
# define CATCH_INTERNAL_UNSUPPRESS_ZERO_VARIADIC_WARNINGS \
_Pragma( "clang diagnostic pop" )
#endif // __clang__
////////////////////////////////////////////////////////////////////////////////
// Assume that non-Windows platforms support posix signals by default
#if !defined(CATCH_PLATFORM_WINDOWS)
#define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
#endif
////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#endif
#ifdef __OS400__
# define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
# define CATCH_CONFIG_COLOUR_NONE
#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++
#ifdef _MSC_VER
# if _MSC_VER >= 1900 // Visual Studio 2015 or newer
# define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
# endif
// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
# define CATCH_CONFIG_COLOUR_NONE
# 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(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
# define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
# endif
#endif // _MSC_VER
#if defined(_REENTRANT) || defined(_MSC_VER)
// Enable async processing, as -pthread is specified or no additional linking is required
# define CATCH_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
////////////////////////////////////////////////////////////////////////////////
// DJGPP
#ifdef __DJGPP__
# define CATCH_INTERNAL_CONFIG_NO_WCHAR
#endif // __DJGPP__
////////////////////////////////////////////////////////////////////////////////
// Embarcadero C++Build
#if defined(__BORLANDC__)
#define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
#endif
////////////////////////////////////////////////////////////////////////////////
// Use of __COUNTER__ is suppressed during code analysis in
// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
// handled by it.
// Otherwise all supported compilers support COUNTER macro,
// but user still might want to turn it off
#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
#define CATCH_INTERNAL_CONFIG_COUNTER
#endif
////////////////////////////////////////////////////////////////////////////////
// Check if string_view is available and usable
// The check is split apart to work around v140 (VS2015) preprocessor issue...
#if defined(__has_include)
#if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
# define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
#endif
#endif
////////////////////////////////////////////////////////////////////////////////
// Check if optional is available and usable
#if defined(__has_include)
# if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
# define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
# endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
#endif // __has_include
////////////////////////////////////////////////////////////////////////////////
// Check if variant is available and usable
#if defined(__has_include)
# 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 // __has_include
#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
# define CATCH_CONFIG_COUNTER
#endif
#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
// This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
# define CATCH_CONFIG_WCHAR
#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_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
# define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#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_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)
# 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_SUPPRESS_PARENTHESES_WARNINGS)
# define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
# define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
# define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
# define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
# define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
# define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
# define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
# define CATCH_INTERNAL_UNSUPPRESS_ZERO_VARIADIC_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
#endif // TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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