xref: /f-stack/freebsd/sys/limits.h (revision 22ce4aff)
1a9643ea8Slogwang /*-
2*22ce4affSfengbojiang  * SPDX-License-Identifier: BSD-3-Clause
3*22ce4affSfengbojiang  *
4a9643ea8Slogwang  * Copyright (c) 1988, 1993
5a9643ea8Slogwang  *	The Regents of the University of California.  All rights reserved.
6a9643ea8Slogwang  *
7a9643ea8Slogwang  * Redistribution and use in source and binary forms, with or without
8a9643ea8Slogwang  * modification, are permitted provided that the following conditions
9a9643ea8Slogwang  * are met:
10a9643ea8Slogwang  * 1. Redistributions of source code must retain the above copyright
11a9643ea8Slogwang  *    notice, this list of conditions and the following disclaimer.
12a9643ea8Slogwang  * 2. Redistributions in binary form must reproduce the above copyright
13a9643ea8Slogwang  *    notice, this list of conditions and the following disclaimer in the
14a9643ea8Slogwang  *    documentation and/or other materials provided with the distribution.
15*22ce4affSfengbojiang  * 3. Neither the name of the University nor the names of its contributors
16a9643ea8Slogwang  *    may be used to endorse or promote products derived from this software
17a9643ea8Slogwang  *    without specific prior written permission.
18a9643ea8Slogwang  *
19a9643ea8Slogwang  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20a9643ea8Slogwang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21a9643ea8Slogwang  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22a9643ea8Slogwang  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23a9643ea8Slogwang  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24a9643ea8Slogwang  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25a9643ea8Slogwang  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26a9643ea8Slogwang  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27a9643ea8Slogwang  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28a9643ea8Slogwang  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29a9643ea8Slogwang  * SUCH DAMAGE.
30a9643ea8Slogwang  *
31a9643ea8Slogwang  * $FreeBSD$
32a9643ea8Slogwang  */
33a9643ea8Slogwang 
34a9643ea8Slogwang #ifndef _SYS_LIMITS_H_
35a9643ea8Slogwang #define	_SYS_LIMITS_H_
36a9643ea8Slogwang 
37a9643ea8Slogwang #include <sys/cdefs.h>
38a9643ea8Slogwang #include <machine/_limits.h>
39a9643ea8Slogwang 
40a9643ea8Slogwang #define	CHAR_BIT	__CHAR_BIT	/* number of bits in a char */
41a9643ea8Slogwang 
42a9643ea8Slogwang #define	SCHAR_MAX	__SCHAR_MAX	/* max value for a signed char */
43a9643ea8Slogwang #define	SCHAR_MIN	__SCHAR_MIN	/* min value for a signed char */
44a9643ea8Slogwang 
45a9643ea8Slogwang #define	UCHAR_MAX	__UCHAR_MAX	/* max value for an unsigned char */
46a9643ea8Slogwang 
47a9643ea8Slogwang #ifdef __CHAR_UNSIGNED__
48a9643ea8Slogwang #define	CHAR_MAX	UCHAR_MAX	/* max value for a char */
49a9643ea8Slogwang #define	CHAR_MIN	0		/* min value for a char */
50a9643ea8Slogwang #else
51a9643ea8Slogwang #define	CHAR_MAX	SCHAR_MAX
52a9643ea8Slogwang #define	CHAR_MIN	SCHAR_MIN
53a9643ea8Slogwang #endif
54a9643ea8Slogwang 
55a9643ea8Slogwang #define	USHRT_MAX	__USHRT_MAX	/* max value for an unsigned short */
56a9643ea8Slogwang #define	SHRT_MAX	__SHRT_MAX	/* max value for a short */
57a9643ea8Slogwang #define	SHRT_MIN	__SHRT_MIN	/* min value for a short */
58a9643ea8Slogwang 
59a9643ea8Slogwang #define	UINT_MAX	__UINT_MAX	/* max value for an unsigned int */
60a9643ea8Slogwang #define	INT_MAX		__INT_MAX	/* max value for an int */
61a9643ea8Slogwang #define	INT_MIN		__INT_MIN	/* min value for an int */
62a9643ea8Slogwang 
63a9643ea8Slogwang #define	ULONG_MAX	__ULONG_MAX	/* max for an unsigned long */
64a9643ea8Slogwang #define	LONG_MAX	__LONG_MAX	/* max for a long */
65a9643ea8Slogwang #define	LONG_MIN	__LONG_MIN	/* min for a long */
66a9643ea8Slogwang 
67a9643ea8Slogwang #ifdef __LONG_LONG_SUPPORTED
68a9643ea8Slogwang #define	ULLONG_MAX	__ULLONG_MAX	/* max for an unsigned long long */
69a9643ea8Slogwang #define	LLONG_MAX	__LLONG_MAX	/* max for a long long */
70a9643ea8Slogwang #define	LLONG_MIN	__LLONG_MIN	/* min for a long long */
71a9643ea8Slogwang #endif
72a9643ea8Slogwang 
73a9643ea8Slogwang #if __POSIX_VISIBLE || __XSI_VISIBLE
74a9643ea8Slogwang #define	SSIZE_MAX	__SSIZE_MAX	/* max value for an ssize_t */
75a9643ea8Slogwang #endif
76a9643ea8Slogwang 
77a9643ea8Slogwang #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
78a9643ea8Slogwang #define	SIZE_T_MAX	__SIZE_T_MAX	/* max value for a size_t */
79a9643ea8Slogwang 
80a9643ea8Slogwang #define	OFF_MAX		__OFF_MAX	/* max value for an off_t */
81a9643ea8Slogwang #define	OFF_MIN		__OFF_MIN	/* min value for an off_t */
82a9643ea8Slogwang #endif
83a9643ea8Slogwang 
84a9643ea8Slogwang #if __BSD_VISIBLE
85a9643ea8Slogwang #define	GID_MAX		UINT_MAX	/* max value for a gid_t */
86a9643ea8Slogwang #define	UID_MAX		UINT_MAX	/* max value for a uid_t */
87a9643ea8Slogwang 
88a9643ea8Slogwang #define	UQUAD_MAX	(__UQUAD_MAX)	/* max value for a uquad_t */
89a9643ea8Slogwang #define	QUAD_MAX	(__QUAD_MAX)	/* max value for a quad_t */
90a9643ea8Slogwang #define	QUAD_MIN	(__QUAD_MIN)	/* min value for a quad_t */
91a9643ea8Slogwang #endif
92a9643ea8Slogwang 
93a9643ea8Slogwang #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
94a9643ea8Slogwang #define	LONG_BIT	__LONG_BIT
95a9643ea8Slogwang #define	WORD_BIT	__WORD_BIT
96a9643ea8Slogwang #endif
97a9643ea8Slogwang 
98a9643ea8Slogwang #if __POSIX_VISIBLE
99a9643ea8Slogwang #define	MQ_PRIO_MAX	64
100a9643ea8Slogwang #endif
101a9643ea8Slogwang 
102a9643ea8Slogwang #endif /* !_SYS_LIMITS_H_ */
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