xref: /freebsd/sys/sys/limits.h (revision 42249ef2)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1988, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  * $FreeBSD$
32  */
33 
34 #ifndef _SYS_LIMITS_H_
35 #define	_SYS_LIMITS_H_
36 
37 #include <sys/cdefs.h>
38 #include <machine/_limits.h>
39 
40 #define	CHAR_BIT	__CHAR_BIT	/* number of bits in a char */
41 
42 #define	SCHAR_MAX	__SCHAR_MAX	/* max value for a signed char */
43 #define	SCHAR_MIN	__SCHAR_MIN	/* min value for a signed char */
44 
45 #define	UCHAR_MAX	__UCHAR_MAX	/* max value for an unsigned char */
46 
47 #ifdef __CHAR_UNSIGNED__
48 #define	CHAR_MAX	UCHAR_MAX	/* max value for a char */
49 #define	CHAR_MIN	0		/* min value for a char */
50 #else
51 #define	CHAR_MAX	SCHAR_MAX
52 #define	CHAR_MIN	SCHAR_MIN
53 #endif
54 
55 #define	USHRT_MAX	__USHRT_MAX	/* max value for an unsigned short */
56 #define	SHRT_MAX	__SHRT_MAX	/* max value for a short */
57 #define	SHRT_MIN	__SHRT_MIN	/* min value for a short */
58 
59 #define	UINT_MAX	__UINT_MAX	/* max value for an unsigned int */
60 #define	INT_MAX		__INT_MAX	/* max value for an int */
61 #define	INT_MIN		__INT_MIN	/* min value for an int */
62 
63 #define	ULONG_MAX	__ULONG_MAX	/* max for an unsigned long */
64 #define	LONG_MAX	__LONG_MAX	/* max for a long */
65 #define	LONG_MIN	__LONG_MIN	/* min for a long */
66 
67 #ifdef __LONG_LONG_SUPPORTED
68 #define	ULLONG_MAX	__ULLONG_MAX	/* max for an unsigned long long */
69 #define	LLONG_MAX	__LLONG_MAX	/* max for a long long */
70 #define	LLONG_MIN	__LLONG_MIN	/* min for a long long */
71 #endif
72 
73 #if __POSIX_VISIBLE || __XSI_VISIBLE
74 #define	SSIZE_MAX	__SSIZE_MAX	/* max value for an ssize_t */
75 #endif
76 
77 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
78 #define	SIZE_T_MAX	__SIZE_T_MAX	/* max value for a size_t */
79 
80 #define	OFF_MAX		__OFF_MAX	/* max value for an off_t */
81 #define	OFF_MIN		__OFF_MIN	/* min value for an off_t */
82 #endif
83 
84 #if __BSD_VISIBLE
85 #define	GID_MAX		UINT_MAX	/* max value for a gid_t */
86 #define	UID_MAX		UINT_MAX	/* max value for a uid_t */
87 
88 #define	UQUAD_MAX	(__UQUAD_MAX)	/* max value for a uquad_t */
89 #define	QUAD_MAX	(__QUAD_MAX)	/* max value for a quad_t */
90 #define	QUAD_MIN	(__QUAD_MIN)	/* min value for a quad_t */
91 #endif
92 
93 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
94 #define	LONG_BIT	__LONG_BIT
95 #define	WORD_BIT	__WORD_BIT
96 #endif
97 
98 #if __POSIX_VISIBLE
99 #define	MQ_PRIO_MAX	64
100 #endif
101 
102 #endif /* !_SYS_LIMITS_H_ */
103