Ruby 3.4.3p32 (2025-04-14 revision d0b7e5b6a04bde21ca483d20a1546b28b401c2d4)
maybe_unused.h
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1#ifndef RBIMPL_ATTR_MAYBE_UNUSED_H /*-*-C++-*-vi:se ft=cpp:*/
2#define RBIMPL_ATTR_MAYBE_UNUSED_H
26
28#if RBIMPL_HAS_CPP_ATTRIBUTE(maybe_unused)
29# define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
30#elif RBIMPL_HAS_C_ATTRIBUTE(maybe_unused)
31# define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]]
32#elif RBIMPL_HAS_ATTRIBUTE(unused)
33# define RBIMPL_ATTR_MAYBE_UNUSED() __attribute__((__unused__))
34#else
35# define RBIMPL_ATTR_MAYBE_UNUSED() /* void */
36#endif
37
38#endif /* RBIMPL_ATTR_MAYBE_UNUSED */
Defines RBIMPL_HAS_ATTRIBUTE.
Defines RBIMPL_HAS_C_ATTRIBUTE.
Defines RBIMPL_HAS_CPP_ATTRIBUTE.