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correct fallthrough macro (#154)

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* correct fallthrough macro

Signed-off-by: Karsten Knese <karsten@openrobotics.org>
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Karsten Knese 2020-04-14 15:41:11 -07:00 • committed by GitHub
parent f6866c5fc1
commit f41de1673a
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1 changed files with 5 additions and 2 deletions
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7
rmw_cyclonedds_cpp/src/fallthrough_macro.hpp
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@ -15,15 +15,18 @@
#ifndef FALLTHROUGH_MACRO_HPP_
#define FALLTHROUGH_MACRO_HPP_
#if __has_cpp_attribute(fallthrough) || (__cplusplus >= 201603L)
#if __cplusplus >= 201603L
// C++17
#define FALLTHROUGH [[fallthrough]]
#elif __has_cpp_attribute(clang::fallthrough)
// Clang
#define FALLTHROUGH [[clang::fallthrough]]
#elif __has_cpp_attribute(gnu::fallthrough)
// gcc with gnu extension
#define FALLTHROUGH [[gnu::fallthrough]]
#else
// gcc
#define FALLTHROUGH /* fallthrough */
#define FALLTHROUGH /* FALLTHROUGH */
#endif
#endif // FALLTHROUGH_MACRO_HPP_