Ruby  3.1.4p223 (2023-03-30 revision HEAD)
warning.h
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1 #ifndef RBIMPL_HAS_WARNING_H /*-*-C++-*-vi:se ft=cpp:*/
2 #define RBIMPL_HAS_WARNING_H
25 #if defined(__has_warning)
26 # define RBIMPL_HAS_WARNING(_) __has_warning(_)
27 #else
28 # define RBIMPL_HAS_WARNING(_) 0
29 #endif
30 
31 #endif /* RBIMPL_HAS_WARNING_H */