_limits.h revision 217128
171164Sache/*- 271164Sache * Copyright (c) 1988, 1993 371164Sache * The Regents of the University of California. All rights reserved. 471164Sache * 571164Sache * Redistribution and use in source and binary forms, with or without 671164Sache * modification, are permitted provided that the following conditions 771164Sache * are met: 871164Sache * 1. Redistributions of source code must retain the above copyright 971164Sache * notice, this list of conditions and the following disclaimer. 1071164Sache * 2. Redistributions in binary form must reproduce the above copyright 1171164Sache * notice, this list of conditions and the following disclaimer in the 1271164Sache * documentation and/or other materials provided with the distribution. 1371164Sache * 4. Neither the name of the University nor the names of its contributors 1471164Sache * may be used to endorse or promote products derived from this software 1571164Sache * without specific prior written permission. 1671164Sache * 1771164Sache * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1871164Sache * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1971164Sache * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2071164Sache * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2171164Sache * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2271164Sache * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2371164Sache * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2471164Sache * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2571164Sache * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2671164Sache * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2771164Sache * SUCH DAMAGE. 2871164Sache * 2971164Sache * @(#)limits.h 8.3 (Berkeley) 1/4/94 3071164Sache * $FreeBSD: head/sys/i386/include/_limits.h 217128 2011-01-07 22:57:31Z tijl $ 3171164Sache */ 3271164Sache 3371164Sache#ifndef _MACHINE__LIMITS_H_ 3471164Sache#define _MACHINE__LIMITS_H_ 3571164Sache 3671164Sache/* 3771164Sache * According to ANSI (section 2.2.4.2), the values below must be usable by 3871164Sache * #if preprocessing directives. Additionally, the expression must have the 3971164Sache * same type as would an expression that is an object of the corresponding 4071164Sache * type converted according to the integral promotions. The subtraction for 4171164Sache * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 4271164Sache * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 4371164Sache * These numbers are for the default configuration of gcc. They work for 4471164Sache * some other compilers as well, but this should not be depended on. 4571164Sache */ 4671164Sache 4771164Sache#define __CHAR_BIT 8 /* number of bits in a char */ 4871164Sache 4971164Sache#define __SCHAR_MAX 0x7f /* max value for a signed char */ 5071164Sache#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ 5171164Sache 52#define __UCHAR_MAX 0xff /* max value for an unsigned char */ 53 54#define __USHRT_MAX 0xffff /* max value for an unsigned short */ 55#define __SHRT_MAX 0x7fff /* max value for a short */ 56#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */ 57 58#define __UINT_MAX 0xffffffffU /* max value for an unsigned int */ 59#define __INT_MAX 0x7fffffff /* max value for an int */ 60#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */ 61 62#define __ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 63#define __LONG_MAX 0x7fffffffL /* max value for a long */ 64#define __LONG_MIN (-0x7fffffffL - 1) /* min value for a long */ 65 66 /* max value for an unsigned long long */ 67#define __ULLONG_MAX 0xffffffffffffffffULL 68#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */ 69#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */ 70 71#define __SSIZE_MAX __INT_MAX /* max value for a ssize_t */ 72 73#define __SIZE_T_MAX __UINT_MAX /* max value for a size_t */ 74 75#define __OFF_MAX __LLONG_MAX /* max value for an off_t */ 76#define __OFF_MIN __LLONG_MIN /* min value for an off_t */ 77 78/* Quads and long longs are the same size. Ensure they stay in sync. */ 79#define __UQUAD_MAX __ULLONG_MAX /* max value for a uquad_t */ 80#define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */ 81#define __QUAD_MIN __LLONG_MIN /* min value for a quad_t */ 82 83#define __LONG_BIT 32 84#define __WORD_BIT 32 85 86/* 87 * Minimum signal stack size. The current signal frame 88 * for i386 is 408 bytes large. 89 */ 90#define __MINSIGSTKSZ (512 * 4) 91 92#endif /* !_MACHINE__LIMITS_H_ */ 93