1#ifndef BENCHMARK_INTERNAL_MACROS_H_
2#define BENCHMARK_INTERNAL_MACROS_H_
3
4#include "benchmark/macros.h"
5
6#ifndef __has_feature
7#define __has_feature(x) 0
8#endif
9
10#if defined(__clang__)
11#define COMPILER_CLANG
12#elif defined(_MSC_VER)
13#define COMPILER_MSVC
14#elif defined(__GNUC__)
15#define COMPILER_GCC
16#endif
17
18#if __has_feature(cxx_attributes)
19#define BENCHMARK_NORETURN [[noreturn]]
20#elif defined(__GNUC__)
21#define BENCHMARK_NORETURN __attribute__((noreturn))
22#elif defined(COMPILER_MSVC)
23#define BENCHMARK_NORETURN __declspec(noreturn)
24#else
25#define BENCHMARK_NORETURN
26#endif
27
28#if defined(__CYGWIN__)
29#define BENCHMARK_OS_CYGWIN 1
30#elif defined(_WIN32)
31#define BENCHMARK_OS_WINDOWS 1
32#elif defined(__APPLE__)
33// TODO(ericwf) This doesn't actually check that it is a Mac OSX system. Just
34// that it is an apple system.
35#define BENCHMARK_OS_MACOSX 1
36#elif defined(__FreeBSD__)
37#define BENCHMARK_OS_FREEBSD 1
38#elif defined(__linux__)
39#define BENCHMARK_OS_LINUX 1
40#endif
41
42#endif // BENCHMARK_INTERNAL_MACROS_H_
43