1 /* $OpenBSD: limits.h,v 1.11 2006/01/06 22:48:46 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 #ifndef SIZE_MAX 43 #define SIZE_MAX UINT_MAX /* max value for a size_t */ 44 #endif 45 #define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 46 #endif 47 48 #if __BSD_VISIBLE 49 #define SIZE_T_MAX UINT_MAX /* max value for a size_t (historic) */ 50 51 /* GCC requires that quad constants be written as expressions. */ 52 #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 53 /* max value for a quad_t */ 54 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 55 #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 56 57 #endif /* __BSD_VISIBLE */ 58 59 #endif /* _MACHINE_LIMITS_H_ */ 60