blob: d68b829e4ac67b112456229752f0ea6bae1cea0e (
plain) (
blame)
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/**
* slibc — Yet another C library
* Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __bool_true_false_are_defined
#include <slibc/version.h>
#include <slibc/features.h>
#if !defined(_SLIBC_SUPPRESS_WARNINGS) && !defined(__C99__)
# warning "<stdbool.h> requires that C99 or newer revision is used."
#endif
/* These should be macros, because the user is allowed to undefine them.
* It is however stated that this is an obsolescent feature that may be
* removed in the future. */
/**
* A variant of `int`. Any non-zero data casted to this type
* is converted to 1 (just like prefixing with `!!`). This
* assures that overflow during cast does not cause a non-zero
* value to be converted to zero.
*/
#define bool _Bool
/**
* A true value.
*/
#define true 1
/**
* An untrue value.
*/
#define false 0
/**
* This macro can be relied on being defined and set to 1 if
* <stdbool.h> has defined the type `bool` (as a macro) and
* the constants (macros) `true` and `false`.
*/
#define __bool_true_false_are_defined 1
#endif
|
