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stdbool.h
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1 /* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
2 
3 This file is part of GCC.
4 
5 GCC is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
9 
10 GCC is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14 
15 You should have received a copy of the GNU General Public License
16 along with GCC; see the file COPYING. If not, write to
17 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA. */
19 
20 /* As a special exception, if you include this header file into source
21  files compiled by GCC, this header file does not by itself cause
22  the resulting executable to be covered by the GNU General Public
23  License. This exception does not however invalidate any other
24  reasons why the executable file might be covered by the GNU General
25  Public License. */
26 
27 /*
28  * ISO C Standard: 7.16 Boolean type and values <stdbool.h>
29  */
30 
31 #ifndef _STDBOOL_H
32 #define _STDBOOL_H
33 
34 #ifndef __cplusplus
35 
36 #define bool _Bool
37 #define true 1
38 #define false 0
39 
40 #else /* __cplusplus */
41 
42 /* Supporting <stdbool.h> in C++ is a GCC extension. */
43 #define _Bool bool
44 #define bool bool
45 #define false false
46 #define true true
47 
48 #endif /* __cplusplus */
49 
50 /* Signal that all the definitions are present. */
51 #define __bool_true_false_are_defined 1
52 
53 #endif /* stdbool.h */