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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 */ |
35 |
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