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Unverified Commit 9f5694ce by Dominic Hamon Committed by GitHub
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Wrap COMPILER macros. (#514)

Some command line or build systems may already set these (eg, bazel) so make sure that takes priority. Fixes #513
parent e1c3a83b
Showing with 28 additions and 22 deletions
src/internal_macros.h
...@@ -11,29 +11,35 @@ ...@@ -11,29 +11,35 @@
#endif #endif
#if defined(__clang__) #if defined(__clang__)
#define COMPILER_CLANG #if !defined(COMPILER_CLANG)
#define COMPILER_CLANG
#endif
#elif defined(_MSC_VER) #elif defined(_MSC_VER)
#define COMPILER_MSVC #if !defined(COMPILER_MSVC)
#define COMPILER_MSVC
#endif
#elif defined(__GNUC__) #elif defined(__GNUC__)
#define COMPILER_GCC #if !defined(COMPILER_GCC)
#define COMPILER_GCC
#endif
#endif #endif
#if __has_feature(cxx_attributes) #if __has_feature(cxx_attributes)
#define BENCHMARK_NORETURN [[noreturn]] #define BENCHMARK_NORETURN [[noreturn]]
#elif defined(__GNUC__) #elif defined(__GNUC__)
#define BENCHMARK_NORETURN __attribute__((noreturn)) #define BENCHMARK_NORETURN __attribute__((noreturn))
#elif defined(COMPILER_MSVC) #elif defined(COMPILER_MSVC)
#define BENCHMARK_NORETURN __declspec(noreturn) #define BENCHMARK_NORETURN __declspec(noreturn)
#else #else
#define BENCHMARK_NORETURN #define BENCHMARK_NORETURN
#endif #endif
#if defined(__CYGWIN__) #if defined(__CYGWIN__)
#define BENCHMARK_OS_CYGWIN 1 #define BENCHMARK_OS_CYGWIN 1
#elif defined(_WIN32) #elif defined(_WIN32)
#define BENCHMARK_OS_WINDOWS 1 #define BENCHMARK_OS_WINDOWS 1
#elif defined(__APPLE__) #elif defined(__APPLE__)
#include "TargetConditionals.h" #include "TargetConditionals.h"
#if defined(TARGET_OS_MAC) #if defined(TARGET_OS_MAC)
#define BENCHMARK_OS_MACOSX 1 #define BENCHMARK_OS_MACOSX 1
#if defined(TARGET_OS_IPHONE) #if defined(TARGET_OS_IPHONE)
...@@ -41,36 +47,36 @@ ...@@ -41,36 +47,36 @@
#endif #endif
#endif #endif
#elif defined(__FreeBSD__) #elif defined(__FreeBSD__)
#define BENCHMARK_OS_FREEBSD 1 #define BENCHMARK_OS_FREEBSD 1
#elif defined(__NetBSD__) #elif defined(__NetBSD__)
#define BENCHMARK_OS_NETBSD 1 #define BENCHMARK_OS_NETBSD 1
#elif defined(__linux__) #elif defined(__linux__)
#define BENCHMARK_OS_LINUX 1 #define BENCHMARK_OS_LINUX 1
#elif defined(__native_client__) #elif defined(__native_client__)
#define BENCHMARK_OS_NACL 1 #define BENCHMARK_OS_NACL 1
#elif defined(EMSCRIPTEN) #elif defined(EMSCRIPTEN)
#define BENCHMARK_OS_EMSCRIPTEN 1 #define BENCHMARK_OS_EMSCRIPTEN 1
#elif defined(__rtems__) #elif defined(__rtems__)
#define BENCHMARK_OS_RTEMS 1 #define BENCHMARK_OS_RTEMS 1
#endif #endif
#if !__has_feature(cxx_exceptions) && !defined(__cpp_exceptions) \ #if !__has_feature(cxx_exceptions) && !defined(__cpp_exceptions) \
&& !defined(__EXCEPTIONS) && !defined(__EXCEPTIONS)
#define BENCHMARK_HAS_NO_EXCEPTIONS #define BENCHMARK_HAS_NO_EXCEPTIONS
#endif #endif
#if defined(COMPILER_CLANG) || defined(COMPILER_GCC) #if defined(COMPILER_CLANG) || defined(COMPILER_GCC)
#define BENCHMARK_MAYBE_UNUSED __attribute__((unused)) #define BENCHMARK_MAYBE_UNUSED __attribute__((unused))
#else #else
#define BENCHMARK_MAYBE_UNUSED #define BENCHMARK_MAYBE_UNUSED
#endif #endif
#if defined(COMPILER_GCC) || __has_builtin(__builtin_unreachable) #if defined(COMPILER_GCC) || __has_builtin(__builtin_unreachable)
#define BENCHMARK_UNREACHABLE() __builtin_unreachable() #define BENCHMARK_UNREACHABLE() __builtin_unreachable()
#elif defined(COMPILER_MSVC) #elif defined(COMPILER_MSVC)
#define BENCHMARK_UNREACHABLE() __assume(false) #define BENCHMARK_UNREACHABLE() __assume(false)
#else #else
#define BENCHMARK_UNREACHABLE() ((void)0) #define BENCHMARK_UNREACHABLE() ((void)0)
#endif #endif
#endif // BENCHMARK_INTERNAL_MACROS_H_ #endif // BENCHMARK_INTERNAL_MACROS_H_
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