diff options
Diffstat (limited to 'include/ruby/3/attr/nodiscard.h')
| -rw-r--r-- | include/ruby/3/attr/nodiscard.h | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/include/ruby/3/attr/nodiscard.h b/include/ruby/3/attr/nodiscard.h index 342a1da7ad..0142d22bd4 100644 --- a/include/ruby/3/attr/nodiscard.h +++ b/include/ruby/3/attr/nodiscard.h @@ -1,4 +1,6 @@ -/** \noop-*-C++-*-vi:ft=cpp +#ifndef RUBY3_ATTR_NODISCARD_H /*-*-C++-*-vi:se ft=cpp:*/ +#define RUBY3_ATTR_NODISCARD_H +/** * @file * @author Ruby developers <ruby-core@ruby-lang.org> * @copyright This file is a part of the programming language Ruby. @@ -26,22 +28,17 @@ * nodiscard attribute can have a message why the result shall not be ignoed. * However GCC attribute and SAL annotation cannot take them. */ -#if defined(RUBY3_ATTR_NODISCARD) -# /* Take that. */ - -#elif RUBY3_HAS_CPP_ATTRIBUTE(nodiscard) +#if RUBY3_HAS_CPP_ATTRIBUTE(nodiscard) # define RUBY3_ATTR_NODISCARD() [[nodiscard]] - #elif RUBY3_HAS_C_ATTRIBUTE(nodiscard) # define RUBY3_ATTR_NODISCARD() [[nodiscard]] - #elif RUBY3_HAS_ATTRIBUTE(warn_unused_result) # define RUBY3_ATTR_NODISCARD() __attribute__((__warn_unused_result__)) - #elif defined(_Check_return_) # /* Take SAL definition. */ # define RUBY3_ATTR_NODISCARD() _Check_return_ - #else # define RUBY3_ATTR_NODISCARD() /* void */ #endif + +#endif /* RUBY3_ATTR_NODISCARD_H */ |