clang  16.0.0git
stdbool.h
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1 /*===---- stdbool.h - Standard header for booleans -------------------------===
2  *
3  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4  * See https://llvm.org/LICENSE.txt for license information.
5  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6  *
7  *===-----------------------------------------------------------------------===
8  */
9 
10 #ifndef __STDBOOL_H
11 #define __STDBOOL_H
12 
13 #define __bool_true_false_are_defined 1
14 
15 #if defined(__STDC_VERSION__) && __STDC_VERSION__ > 201710L
16 /* FIXME: We should be issuing a deprecation warning here, but cannot yet due
17  * to system headers which include this header file unconditionally.
18  */
19 #elif !defined(__cplusplus)
20 #define bool _Bool
21 #define true 1
22 #define false 0
23 #elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
24 /* Define _Bool as a GNU extension. */
25 #define _Bool bool
26 #if defined(__cplusplus) && __cplusplus < 201103L
27 /* For C++98, define bool, false, true as a GNU extension. */
28 #define bool bool
29 #define false false
30 #define true true
31 #endif
32 #endif
33 
34 #endif /* __STDBOOL_H */