Ruby  3.4.0dev (2024-11-05 revision 348a53415339076afc4a02fcd09f3ae36e9c4c61)
Macros
pure.h File Reference

(348a53415339076afc4a02fcd09f3ae36e9c4c61)

Defines RBIMPL_ATTR_PURE. More...

#include "ruby/internal/compiler_since.h"
#include "ruby/internal/has/attribute.h"
#include "ruby/assert.h"
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Macros

#define RBIMPL_ATTR_PURE()   __attribute__((__pure__))
 Wraps (or simulates) __attribute__((pure)) More...
 
#define RBIMPL_ATTR_PURE_UNLESS_DEBUG()   RBIMPL_ATTR_PURE()
 Enables RBIMPL_ATTR_PURE if and only if. More...
 

Detailed Description

Defines RBIMPL_ATTR_PURE.

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 pure.h.

Macro Definition Documentation

◆ RBIMPL_ATTR_PURE

#define RBIMPL_ATTR_PURE ( )    __attribute__((__pure__))

Wraps (or simulates) __attribute__((pure))

Definition at line 29 of file pure.h.

◆ RBIMPL_ATTR_PURE_UNLESS_DEBUG

#define RBIMPL_ATTR_PURE_UNLESS_DEBUG ( )    RBIMPL_ATTR_PURE()

Enables RBIMPL_ATTR_PURE if and only if.

! RUBY_DEBUG.

Definition at line 38 of file pure.h.