blob: 488c3ec7ad3110e1e0a86f0e18a94fc6e54e7639 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
#ifndef RUBY3_ATTR_DIAGNOSE_IF_H /*-*-C++-*-vi:se ft=cpp:*/
#define RUBY3_ATTR_DIAGNOSE_IF_H
/**
* @file
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @warning Symbols prefixed with either `RUBY3` or `ruby3` 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.
* @brief Defines #RUBY3_ATTR_DIAGNOSE_IF.
*/
/** Wraps (or simulates) `__attribute__((diagnose_if))` */
#if RUBY3_COMPILER_BEFORE(Clang, 5, 0, 0)
# /* https://bugs.llvm.org/show_bug.cgi?id=34319 */
# define RUBY3_ATTR_DIAGNOSE_IF(_, __, ___) /* void */
#elif RUBY3_HAS_ATTRIBUTE(diagnose_if)
# define RUBY3_ATTR_DIAGNOSE_IF(_, __, ___) \
RUBY3_WARNING_PUSH() \
RUBY3_WARNING_IGNORED(-Wgcc-compat) \
__attribute__((__diagnose_if__(_, __, ___))) \
RUBY3_WARNING_POP()
#else
# define RUBY3_ATTR_DIAGNOSE_IF(_, __, ___) /* void */
#endif
#endif /* RUBY3_ATTR_DIAGNOSE_IF_H */
|
