Ruby 3.2.1p31 (2023-02-08 revision 31819e82c88c6f8ecfaeb162519bfa26a14b21fd)
weakref.h
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1#ifndef RBIMPL_ATTR_WEAKREF_H /*-*-C++-*-vi:se ft=cpp:*/
2#define RBIMPL_ATTR_WEAKREF_H
24
26#if RBIMPL_HAS_ATTRIBUTE(weakref)
27# define RBIMPL_ATTR_WEAKREF(sym) __attribute__((__weakref__(# sym)))
28#else
29# define RBIMPL_ATTR_WEAKREF(sym) /* void */
30#endif
31
32#endif /* RBIMPL_ATTR_WEAKREF_H */
Defines RBIMPL_HAS_ATTRIBUTE.