limits.h revision 1.10 
1/*	$OpenBSD: limits.h,v 1.10 2005/12/14 21:46:30 millert Exp $	*/
2
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 *	@(#)limits.h	8.3 (Berkeley) 1/4/94
32 */
33
34#ifndef _MACHINE_LIMITS_H_
35#define _MACHINE_LIMITS_H_
36
37#include <sys/cdefs.h>
38
39#define	MB_LEN_MAX	6		/* Allow 31 bit UTF2 */
40
41#if __POSIX_VISIBLE || __XPG_VISIBLE
42#define	SIZE_MAX	UINT_MAX	/* max value for a size_t */
43#define	SSIZE_MAX	INT_MAX		/* max value for a ssize_t */
44#endif
45
46#if __BSD_VISIBLE
47#define	SIZE_T_MAX	UINT_MAX	/* max value for a size_t (historic) */
48
49/* GCC requires that quad constants be written as expressions. */
50#define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
51					/* max value for a quad_t */
52#define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
53#define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */
54
55#endif /* __BSD_VISIBLE */
56
57#endif /* _MACHINE_LIMITS_H_ */
58