1 // -*- C++ -*- 2 //===---------------------------- test_macros.h ---------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef SUPPORT_TEST_MACROS_HPP 12 #define SUPPORT_TEST_MACROS_HPP 13 14 #include <ciso646> // Get STL specific macros like _LIBCPP_VERSION 15 16 #if defined(__GNUC__) 17 #pragma GCC diagnostic push 18 #pragma GCC diagnostic ignored "-Wvariadic-macros" 19 #endif 20 21 #define TEST_CONCAT1(X, Y) X##Y 22 #define TEST_CONCAT(X, Y) TEST_CONCAT1(X, Y) 23 24 #ifdef __has_feature 25 #define TEST_HAS_FEATURE(X) __has_feature(X) 26 #else 27 #define TEST_HAS_FEATURE(X) 0 28 #endif 29 30 #ifdef __has_include 31 #define TEST_HAS_INCLUDE(X) __has_include(X) 32 #else 33 #define TEST_HAS_INCLUDE(X) 0 34 #endif 35 36 #ifdef __has_extension 37 #define TEST_HAS_EXTENSION(X) __has_extension(X) 38 #else 39 #define TEST_HAS_EXTENSION(X) 0 40 #endif 41 42 #ifdef __has_builtin 43 #define TEST_HAS_BUILTIN(X) __has_builtin(X) 44 #else 45 #define TEST_HAS_BUILTIN(X) 0 46 #endif 47 #ifdef __is_identifier 48 // '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 49 // the compiler and '1' otherwise. 50 #define TEST_HAS_BUILTIN_IDENTIFIER(X) !__is_identifier(X) 51 #else 52 #define TEST_HAS_BUILTIN_IDENTIFIER(X) 0 53 #endif 54 55 #if defined(__apple_build_version__) 56 #define TEST_APPLE_CLANG_VER (__clang_major__ * 100) + __clang_minor__ 57 #elif defined(__clang_major__) 58 #define TEST_CLANG_VER (__clang_major__ * 100) + __clang_minor__ 59 #elif defined(__GNUC__) 60 #define TEST_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 61 #endif 62 63 /* Make a nice name for the standard version */ 64 #ifndef TEST_STD_VER 65 #if __cplusplus <= 199711L 66 # define TEST_STD_VER 3 67 #elif __cplusplus <= 201103L 68 # define TEST_STD_VER 11 69 #elif __cplusplus <= 201402L 70 # define TEST_STD_VER 14 71 #else 72 # define TEST_STD_VER 16 // current year; greater than current standard 73 #endif 74 #endif 75 76 // Attempt to deduce GCC version 77 #if defined(_LIBCPP_VERSION) && TEST_HAS_INCLUDE(<features.h>) 78 #include <features.h> 79 #define TEST_HAS_GLIBC 80 #define TEST_GLIBC_PREREQ(major, minor) __GLIBC_PREREQ(major, minor) 81 #endif 82 83 /* Features that were introduced in C++14 */ 84 #if TEST_STD_VER >= 14 85 #define TEST_HAS_EXTENDED_CONSTEXPR 86 #define TEST_HAS_VARIABLE_TEMPLATES 87 #endif 88 89 /* Features that were introduced after C++14 */ 90 #if TEST_STD_VER > 14 91 #endif 92 93 #if TEST_STD_VER >= 11 94 #define TEST_ALIGNOF(...) alignof(__VA_ARGS__) 95 #define TEST_ALIGNAS(...) alignas(__VA_ARGS__) 96 #define TEST_CONSTEXPR constexpr 97 #define TEST_NOEXCEPT noexcept 98 #define TEST_NOEXCEPT_COND(...) noexcept(__VA_ARGS__) 99 # if TEST_STD_VER >= 14 100 # define TEST_CONSTEXPR_CXX14 constexpr 101 # else 102 # define TEST_CONSTEXPR_CXX14 103 # endif 104 # if TEST_STD_VER > 14 105 # define TEST_THROW_SPEC(...) 106 # else 107 # define TEST_THROW_SPEC(...) throw(__VA_ARGS__) 108 # endif 109 #else 110 #define TEST_ALIGNOF(...) __alignof(__VA_ARGS__) 111 #define TEST_ALIGNAS(...) __attribute__((__aligned__(__VA_ARGS__))) 112 #define TEST_CONSTEXPR 113 #define TEST_CONSTEXPR_CXX14 114 #define TEST_NOEXCEPT throw() 115 #define TEST_NOEXCEPT_COND(...) 116 #define TEST_THROW_SPEC(...) throw(__VA_ARGS__) 117 #endif 118 119 #define TEST_ALIGNAS_TYPE(...) TEST_ALIGNAS(TEST_ALIGNOF(__VA_ARGS__)) 120 121 #if !TEST_HAS_FEATURE(cxx_rtti) && !defined(__cpp_rtti) \ 122 && !defined(__GXX_RTTI) 123 #define TEST_HAS_NO_RTTI 124 #endif 125 126 #if !TEST_HAS_FEATURE(cxx_exceptions) && !defined(__cpp_exceptions) \ 127 && !defined(__EXCEPTIONS) 128 #define TEST_HAS_NO_EXCEPTIONS 129 #endif 130 131 #if TEST_HAS_FEATURE(address_sanitizer) || TEST_HAS_FEATURE(memory_sanitizer) || \ 132 TEST_HAS_FEATURE(thread_sanitizer) 133 #define TEST_HAS_SANITIZERS 134 #endif 135 136 #if defined(_LIBCPP_NORETURN) 137 #define TEST_NORETURN _LIBCPP_NORETURN 138 #else 139 #define TEST_NORETURN [[noreturn]] 140 #endif 141 142 #define ASSERT_NOEXCEPT(...) \ 143 static_assert(noexcept(__VA_ARGS__), "Operation must be noexcept") 144 145 #define ASSERT_NOT_NOEXCEPT(...) \ 146 static_assert(!noexcept(__VA_ARGS__), "Operation must NOT be noexcept") 147 148 /* Macros for testing libc++ specific behavior and extensions */ 149 #if defined(_LIBCPP_VERSION) 150 #define LIBCPP_ASSERT(...) assert(__VA_ARGS__) 151 #define LIBCPP_STATIC_ASSERT(...) static_assert(__VA_ARGS__) 152 #define LIBCPP_ASSERT_NOEXCEPT(...) ASSERT_NOEXCEPT(__VA_ARGS__) 153 #define LIBCPP_ASSERT_NOT_NOEXCEPT(...) ASSERT_NOT_NOEXCEPT(__VA_ARGS__) 154 #define LIBCPP_ONLY(...) __VA_ARGS__ 155 #else 156 #define LIBCPP_ASSERT(...) ((void)0) 157 #define LIBCPP_STATIC_ASSERT(...) ((void)0) 158 #define LIBCPP_ASSERT_NOEXCEPT(...) ((void)0) 159 #define LIBCPP_ASSERT_NOT_NOEXCEPT(...) ((void)0) 160 #define LIBCPP_ONLY(...) ((void)0) 161 #endif 162 163 namespace test_macros_detail { 164 template <class T, class U> 165 struct is_same { enum { value = 0};} ; 166 template <class T> 167 struct is_same<T, T> { enum {value = 1}; }; 168 } // namespace test_macros_detail 169 170 #define ASSERT_SAME_TYPE(...) \ 171 static_assert(test_macros_detail::is_same<__VA_ARGS__>::value, \ 172 "Types differ uexpectedly") 173 174 #ifndef TEST_HAS_NO_EXCEPTIONS 175 #define TEST_THROW(...) throw __VA_ARGS__ 176 #else 177 #if defined(__GNUC__) 178 #define TEST_THROW(...) __builtin_abort() 179 #else 180 #include <stdlib.h> 181 #define TEST_THROW(...) ::abort() 182 #endif 183 #endif 184 185 #if defined(__GNUC__) || defined(__clang__) 186 template <class Tp> 187 inline void DoNotOptimize(Tp const& value) { 188 asm volatile("" : : "g"(value) : "memory"); 189 } 190 #else 191 #include <intrin.h> 192 template <class Tp> 193 inline void DoNotOptimize(Tp const& value) { 194 const volatile void* volatile = __builtin_addressof(value); 195 _ReadWriteBarrier(); 196 } 197 #endif 198 199 #if defined(__GNUC__) 200 #pragma GCC diagnostic pop 201 #endif 202 203 #endif // SUPPORT_TEST_MACROS_HPP 204
