1 /* 2 * Copyright 2014 Google Inc. All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef FRUIT_CONFIG_H 18 #define FRUIT_CONFIG_H 19 20 #include <fruit/impl/fruit-config-base.h> 21 22 #if FRUIT_HAS_STD_IS_TRIVIALLY_COPYABLE 23 #if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 24 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) \ 25 (std::is_trivially_copyable<T>::value || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value)) 26 #else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 27 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) (std::is_trivially_copyable<T>::value) 28 #endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 29 #elif FRUIT_HAS_IS_TRIVIALLY_COPYABLE 30 #if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 31 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) \ 32 (__is_trivially_copyable(T) || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value)) 33 #else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 34 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) (__is_trivially_copyable(T)) 35 #endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 36 #elif FRUIT_HAS_HAS_TRIVIAL_COPY 37 // The compiler doesn't support __is_trivially_copyable (nor is std::is_trivially_copyable 38 // supported by the library). We use this check as a proxy, but it's not exactly the same thing. 39 #if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 40 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) \ 41 (__has_trivial_copy(T) || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value)) 42 #else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 43 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) (__has_trivial_copy(T)) 44 #endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 45 #else 46 // We use the standard one, but most likely it won't work. 47 #if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 48 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) \ 49 (std::is_trivially_copyable<T>::value || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value)) 50 #else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 51 #define FRUIT_IS_TRIVIALLY_COPYABLE(T) (std::is_trivially_copyable<T>::value) 52 #endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE 53 #endif 54 55 #if FRUIT_HAS_ALWAYS_INLINE_ATTRIBUTE 56 #define FRUIT_ALWAYS_INLINE __attribute__((always_inline)) 57 #elif FRUIT_HAS_FORCEINLINE 58 #define FRUIT_ALWAYS_INLINE __forceinline 59 #else 60 #define FRUIT_ALWAYS_INLINE 61 #endif 62 63 #if FRUIT_HAS_GCC_ATTRIBUTE_DEPRECATED 64 #define FRUIT_DEPRECATED_DECLARATION(...) __VA_ARGS__ __attribute__((deprecated)) 65 // Marking the declaration is enough. 66 #define FRUIT_DEPRECATED_DEFINITION(...) __VA_ARGS__ 67 #elif FRUIT_HAS_DECLSPEC_DEPRECATED 68 #define FRUIT_DEPRECATED_DECLARATION(...) __declspec(deprecated) __VA_ARGS__ 69 #define FRUIT_DEPRECATED_DEFINITION(...) __declspec(deprecated) __VA_ARGS__ 70 // We use this only if the above two are not supported, because some compilers "support" this syntax (i.e., it compiles) 71 // but they just ignore the attribute. 72 #elif FRUIT_HAS_ATTRIBUTE_DEPRECATED 73 #define FRUIT_DEPRECATED_DECLARATION(...) [[deprecated]] __VA_ARGS__ 74 #define FRUIT_DEPRECATED_DEFINITION(...) [[deprecated]] __VA_ARGS__ 75 #else 76 #define FRUIT_DEPRECATED_DECLARATION(...) __VA_ARGS__ 77 #define FRUIT_DEPRECATED_DEFINITION(...) __VA_ARGS__ 78 #endif 79 80 #if FRUIT_HAS_MSVC_ASSUME 81 #define FRUIT_UNREACHABLE \ 82 FruitAssert(false); \ 83 __assume(0) 84 #elif FRUIT_HAS_BUILTIN_UNREACHABLE 85 #define FRUIT_UNREACHABLE \ 86 FruitAssert(false); \ 87 __builtin_unreachable() 88 #endif 89 90 #endif // FRUIT_CONFIG_H 91
