Ruby  3.4.0dev (2024-12-06 revision 892c46283a5ea4179500d951c9d4866c0051f27b)
Macros
maybe_unused.h File Reference

(892c46283a5ea4179500d951c9d4866c0051f27b)

Defines RBIMPL_ATTR_MAYBE_UNUSED. More...

#include "ruby/internal/has/attribute.h"
#include "ruby/internal/has/c_attribute.h"
#include "ruby/internal/has/cpp_attribute.h"
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Macros

#define RBIMPL_ATTR_MAYBE_UNUSED()   __attribute__((__unused__))
 Wraps (or simulates) [[maybe_unused]] More...
 

Detailed Description

Defines RBIMPL_ATTR_MAYBE_UNUSED.

Author
Ruby developers ruby-.nosp@m.core.nosp@m.@ruby.nosp@m.-lan.nosp@m.g.org
Warning
Symbols prefixed with either RBIMPL or rbimpl are implementation details. Don't take them as canon. They could rapidly appear then vanish. The name (path) of this header file is also an implementation detail. Do not expect it to persist at the place it is now. Developers are free to move it anywhere anytime at will.
Note
To ruby-core: remember that this header can be possibly recursively included from extension libraries written in C++. Do not expect for instance __VA_ARGS__ is always available. We assume C99 for ruby itself but we don't assume languages of extension libraries. They could be written in C++98.

Definition in file maybe_unused.h.

Macro Definition Documentation

◆ RBIMPL_ATTR_MAYBE_UNUSED

#define RBIMPL_ATTR_MAYBE_UNUSED ( )    __attribute__((__unused__))

Wraps (or simulates) [[maybe_unused]]

Definition at line 33 of file maybe_unused.h.