_limits.h revision 139731
1139731Simp/*- 299129Sobrien * Copyright (c) 1988, 1993 399129Sobrien * The Regents of the University of California. All rights reserved. 499129Sobrien * 599129Sobrien * Redistribution and use in source and binary forms, with or without 699129Sobrien * modification, are permitted provided that the following conditions 799129Sobrien * are met: 899129Sobrien * 1. Redistributions of source code must retain the above copyright 999129Sobrien * notice, this list of conditions and the following disclaimer. 1099129Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1199129Sobrien * notice, this list of conditions and the following disclaimer in the 1299129Sobrien * documentation and/or other materials provided with the distribution. 1399129Sobrien * 4. Neither the name of the University nor the names of its contributors 1499129Sobrien * may be used to endorse or promote products derived from this software 1599129Sobrien * without specific prior written permission. 1699129Sobrien * 1799129Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1899129Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1999129Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2099129Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2199129Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2299129Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2399129Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2499129Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2599129Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2699129Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2799129Sobrien * SUCH DAMAGE. 2899129Sobrien * 2999129Sobrien * @(#)limits.h 8.3 (Berkeley) 1/4/94 3099129Sobrien * $FreeBSD: head/sys/amd64/include/_limits.h 139731 2005-01-05 20:17:21Z imp $ 3199129Sobrien */ 3299129Sobrien 33113941Skan#ifndef _MACHINE__LIMITS_H_ 34113941Skan#define _MACHINE__LIMITS_H_ 3599129Sobrien 36114678Skan/* 37114678Skan * According to ANSI (section 2.2.4.2), the values below must be usable by 38114678Skan * #if preprocessing directives. Additionally, the expression must have the 39114678Skan * same type as would an expression that is an object of the corresponding 40114678Skan * type converted according to the integral promotions. The subtraction for 41114678Skan * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 42114678Skan * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 43114678Skan * These numbers are for the default configuration of gcc. They work for 44114678Skan * some other compilers as well, but this should not be depended on. 45114678Skan */ 46114678Skan 47115164Skan#define __CHAR_BIT 8 /* number of bits in a char */ 48115164Skan 49113941Skan#define __SCHAR_MAX 0x7f /* max value for a signed char */ 50122940Speter#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ 5199129Sobrien 52113941Skan#define __UCHAR_MAX 0xffU /* max value for an unsigned char */ 5399129Sobrien 54113941Skan#define __USHRT_MAX 0xffffU /* max value for an unsigned short */ 55113941Skan#define __SHRT_MAX 0x7fff /* max value for a short */ 56122940Speter#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */ 5799129Sobrien 58113941Skan#define __UINT_MAX 0xffffffffU /* max value for an unsigned int */ 59113941Skan#define __INT_MAX 0x7fffffff /* max value for an int */ 60122940Speter#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */ 6199129Sobrien 62113941Skan#define __ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */ 63113941Skan#define __LONG_MAX 0x7fffffffffffffffL /* max for a long */ 64122940Speter#define __LONG_MIN (-0x7fffffffffffffffL - 1) /* min for a long */ 6599129Sobrien 66122940Speter /* max value for an unsigned long long */ 67113941Skan#define __ULLONG_MAX 0xffffffffffffffffULL 68122940Speter#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */ 69122940Speter#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */ 7099129Sobrien 71113941Skan#define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */ 7299129Sobrien 73113941Skan#define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */ 7499129Sobrien 75113941Skan#define __OFF_MAX __LONG_MAX /* max value for an off_t */ 76113941Skan#define __OFF_MIN __LONG_MIN /* min value for an off_t */ 7799129Sobrien 78113941Skan/* Quads and longs are the same on the amd64. Ensure they stay in sync. */ 79122940Speter#define __UQUAD_MAX __ULONG_MAX /* max value for a uquad_t */ 80122940Speter#define __QUAD_MAX __LONG_MAX /* max value for a quad_t */ 81122940Speter#define __QUAD_MIN __LONG_MIN /* min value for a quad_t */ 8299129Sobrien 83113941Skan#define __LONG_BIT 64 84113941Skan#define __WORD_BIT 32 8599129Sobrien 86113941Skan#endif /* !_MACHINE__LIMITS_H_ */ 87