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/*
* Copyright 2017 The Native Object Protocols Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBNOP_INCLUDE_NOP_UTILITY_COMPILER_H_
#define LIBNOP_INCLUDE_NOP_UTILITY_COMPILER_H_
#define NOP_GCC_VERSION \
(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
// Compatability with non-clang compilers.
#ifndef __has_cpp_attribute
#define __has_cpp_attribute(x) 0
#endif
// Test for fallthrough support.
#if __has_cpp_attribute(clang::fallthrough)
#define NOP_FALLTHROUGH [[clang::fallthrough]]
#elif NOP_GCC_VERSION >= 70000
#define NOP_FALLTHROUGH [[fallthrough]]
#else
#define NOP_FALLTHROUGH
#endif
#endif // LIBNOP_INCLUDE_NOP_UTILITY_COMPILER_H_
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