Ruby  3.4.0dev (2024-11-05 revision 348a53415339076afc4a02fcd09f3ae36e9c4c61)
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.