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91 lines
4.5 KiB
91 lines
4.5 KiB
4 months ago
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/*
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* Copyright 2014 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FRUIT_CONFIG_H
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#define FRUIT_CONFIG_H
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#include <fruit/impl/fruit-config-base.h>
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#if FRUIT_HAS_STD_IS_TRIVIALLY_COPYABLE
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#if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) \
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(std::is_trivially_copyable<T>::value || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value))
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#else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) (std::is_trivially_copyable<T>::value)
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#endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#elif FRUIT_HAS_IS_TRIVIALLY_COPYABLE
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#if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) \
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(__is_trivially_copyable(T) || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value))
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#else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) (__is_trivially_copyable(T))
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#endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#elif FRUIT_HAS_HAS_TRIVIAL_COPY
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// The compiler doesn't support __is_trivially_copyable (nor is std::is_trivially_copyable
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// supported by the library). We use this check as a proxy, but it's not exactly the same thing.
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#if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) \
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(__has_trivial_copy(T) || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value))
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#else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) (__has_trivial_copy(T))
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#endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#else
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// We use the standard one, but most likely it won't work.
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#if FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) \
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(std::is_trivially_copyable<T>::value || (std::is_empty<T>::value && std::is_trivially_copy_constructible<T>::value))
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#else // !FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#define FRUIT_IS_TRIVIALLY_COPYABLE(T) (std::is_trivially_copyable<T>::value)
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#endif // FRUIT_HAS_STD_IS_TRIVIALLY_COPY_CONSTRUCTIBLE
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#endif
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#if FRUIT_HAS_ALWAYS_INLINE_ATTRIBUTE
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#define FRUIT_ALWAYS_INLINE __attribute__((always_inline))
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#elif FRUIT_HAS_FORCEINLINE
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#define FRUIT_ALWAYS_INLINE __forceinline
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#else
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#define FRUIT_ALWAYS_INLINE
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#endif
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#if FRUIT_HAS_GCC_ATTRIBUTE_DEPRECATED
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#define FRUIT_DEPRECATED_DECLARATION(...) __VA_ARGS__ __attribute__((deprecated))
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// Marking the declaration is enough.
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#define FRUIT_DEPRECATED_DEFINITION(...) __VA_ARGS__
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#elif FRUIT_HAS_DECLSPEC_DEPRECATED
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#define FRUIT_DEPRECATED_DECLARATION(...) __declspec(deprecated) __VA_ARGS__
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#define FRUIT_DEPRECATED_DEFINITION(...) __declspec(deprecated) __VA_ARGS__
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// We use this only if the above two are not supported, because some compilers "support" this syntax (i.e., it compiles)
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// but they just ignore the attribute.
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#elif FRUIT_HAS_ATTRIBUTE_DEPRECATED
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#define FRUIT_DEPRECATED_DECLARATION(...) [[deprecated]] __VA_ARGS__
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#define FRUIT_DEPRECATED_DEFINITION(...) [[deprecated]] __VA_ARGS__
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#else
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#define FRUIT_DEPRECATED_DECLARATION(...) __VA_ARGS__
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#define FRUIT_DEPRECATED_DEFINITION(...) __VA_ARGS__
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#endif
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#if FRUIT_HAS_MSVC_ASSUME
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#define FRUIT_UNREACHABLE \
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FruitAssert(false); \
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__assume(0)
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#elif FRUIT_HAS_BUILTIN_UNREACHABLE
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#define FRUIT_UNREACHABLE \
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FruitAssert(false); \
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__builtin_unreachable()
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#endif
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#endif // FRUIT_CONFIG_H
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