| // Copyright 2014 Google Inc. All rights reserved. | |
| // | |
| // 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 MACROS_H__ | |
| #define MACROS_H__ | |
| // GXX_EXPERIMENTAL_CXX0X is defined by gcc and clang up to at least | |
| // gcc-4.7 and clang-3.1 (2011-12-13). __cplusplus was defined to 1 | |
| // in gcc before 4.7 and clang before 3.1, but is defined according | |
| // to the language version in effect thereafter. | |
| #if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L | |
| // When compiled with clang c++11 standard with warning on switch | |
| // fallthrough, tell the compiler not to complain when it was intended. | |
| #if defined(__clang__) && defined(__has_warning) | |
| #if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough") | |
| #define FALLTHROUGH_INTENDED [[clang::fallthrough]] // NOLINT | |
| #endif | |
| #endif | |
| #endif | |
| #ifndef FALLTHROUGH_INTENDED | |
| #define FALLTHROUGH_INTENDED do { } while (0) | |
| #endif | |
| #endif // MACROS_H__ |