Ruby 3.4.1p0 (2024-12-25 revision 48d4efcb85000e1ebae42004e963b5d0cedddcf2)
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.