1 #ifndef BENCHMARK_INTERNAL_MACROS_H_
2 #define BENCHMARK_INTERNAL_MACROS_H_
3 
4 #include "benchmark/benchmark.h"
5 
6 /* Needed to detect STL */
7 #include <cstdlib>
8 
9 // clang-format off
10 
11 #ifndef __has_feature
12 #define __has_feature(x) 0
13 #endif
14 
15 #if defined(__clang__)
16   #if !defined(COMPILER_CLANG)
17     #define COMPILER_CLANG
18   #endif
19 #elif defined(_MSC_VER)
20   #if !defined(COMPILER_MSVC)
21     #define COMPILER_MSVC
22   #endif
23 #elif defined(__GNUC__)
24   #if !defined(COMPILER_GCC)
25     #define COMPILER_GCC
26   #endif
27 #endif
28 
29 #if __has_feature(cxx_attributes)
30   #define BENCHMARK_NORETURN [[noreturn]]
31 #elif defined(__GNUC__)
32   #define BENCHMARK_NORETURN __attribute__((noreturn))
33 #elif defined(COMPILER_MSVC)
34   #define BENCHMARK_NORETURN __declspec(noreturn)
35 #else
36   #define BENCHMARK_NORETURN
37 #endif
38 
39 #if defined(__CYGWIN__)
40   #define BENCHMARK_OS_CYGWIN 1
41 #elif defined(_WIN32)
42   #define BENCHMARK_OS_WINDOWS 1
43   #if defined(__MINGW32__)
44     #define BENCHMARK_OS_MINGW 1
45   #endif
46 #elif defined(__APPLE__)
47   #define BENCHMARK_OS_APPLE 1
48   #include "TargetConditionals.h"
49   #if defined(TARGET_OS_MAC)
50     #define BENCHMARK_OS_MACOSX 1
51     #if defined(TARGET_OS_IPHONE)
52       #define BENCHMARK_OS_IOS 1
53     #endif
54   #endif
55 #elif defined(__FreeBSD__)
56   #define BENCHMARK_OS_FREEBSD 1
57 #elif defined(__NetBSD__)
58   #define BENCHMARK_OS_NETBSD 1
59 #elif defined(__OpenBSD__)
60   #define BENCHMARK_OS_OPENBSD 1
61 #elif defined(__linux__)
62   #define BENCHMARK_OS_LINUX 1
63 #elif defined(__native_client__)
64   #define BENCHMARK_OS_NACL 1
65 #elif defined(__EMSCRIPTEN__)
66   #define BENCHMARK_OS_EMSCRIPTEN 1
67 #elif defined(__rtems__)
68   #define BENCHMARK_OS_RTEMS 1
69 #elif defined(__Fuchsia__)
70 #define BENCHMARK_OS_FUCHSIA 1
71 #elif defined (__SVR4) && defined (__sun)
72 #define BENCHMARK_OS_SOLARIS 1
73 #endif
74 
75 #if defined(__ANDROID__) && defined(__GLIBCXX__)
76 #define BENCHMARK_STL_ANDROID_GNUSTL 1
77 #endif
78 
79 #if !__has_feature(cxx_exceptions) && !defined(__cpp_exceptions) \
80      && !defined(__EXCEPTIONS)
81   #define BENCHMARK_HAS_NO_EXCEPTIONS
82 #endif
83 
84 #if defined(COMPILER_CLANG) || defined(COMPILER_GCC)
85   #define BENCHMARK_MAYBE_UNUSED __attribute__((unused))
86 #else
87   #define BENCHMARK_MAYBE_UNUSED
88 #endif
89 
90 // clang-format on
91 
92 #endif  // BENCHMARK_INTERNAL_MACROS_H_
93