mirror of
https://github.com/catchorg/Catch2.git
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e6f5e05ebc
The problem was that Catch2 did not reliably include `<exception>` before it checked for the feature test macro for `std::uncaught_exceptions`. To avoid overhead of including `<exception>` everywhere, the configuration check was split out into a separate header. Closes #2021
378 lines
15 KiB
C++
378 lines
15 KiB
C++
/*
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* Created by Phil on 15/04/2013.
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* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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#define TWOBLUECUBES_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_COUNTER : is the __COUNTER__ macro supported?
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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 "catch_platform.h"
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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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// We have to avoid both ICC and Clang, because they try to mask themselves
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// as gcc, and we want only GCC in this block
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#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC) && !defined(__CUDACC__)
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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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# define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__)
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#endif
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#if defined(__clang__)
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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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// 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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// Therefore, `CATCH_INTERNAL_IGNORE_BUT_WARN` is not implemented.
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# if !defined(__ibmxl__) && !defined(__CUDACC__)
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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_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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#endif // __clang__
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////////////////////////////////////////////////////////////////////////////////
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// Assume that non-Windows platforms support posix signals by default
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#if !defined(CATCH_PLATFORM_WINDOWS)
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#define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// We know some environments not to support full POSIX signals
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#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
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#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
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#endif
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#ifdef __OS400__
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# define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
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# define CATCH_CONFIG_COLOUR_NONE
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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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# define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
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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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# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION __pragma( warning(push) )
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# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION __pragma( warning(pop) )
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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(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
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# define CATCH_CONFIG_COLOUR_NONE
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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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// DJGPP
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#ifdef __DJGPP__
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# define CATCH_INTERNAL_CONFIG_NO_WCHAR
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#endif // __DJGPP__
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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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// Use of __COUNTER__ is suppressed during code analysis in
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// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
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// handled by it.
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// Otherwise all supported compilers support COUNTER macro,
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// but user still might want to turn it off
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#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
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#define CATCH_INTERNAL_CONFIG_COUNTER
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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_CONFIG_COLOUR_NONE
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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 __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_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
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# define CATCH_CONFIG_COUNTER
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#endif
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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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// This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
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#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
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# define CATCH_CONFIG_WCHAR
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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) && !defined(CATCH_CONFIG_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_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_NO_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_ANDROID_LOGWRITE)
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# define CATCH_CONFIG_ANDROID_LOGWRITE
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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_WARNINGS)
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# define CATCH_INTERNAL_SUPPRESS_UNUSED_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_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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#endif // TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
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