_limits.h revision 108175
1219820Sjeff/* 2219820Sjeff * Copyright (c) 1988, 1993 3219820Sjeff * The Regents of the University of California. All rights reserved. 4219820Sjeff * 5219820Sjeff * Redistribution and use in source and binary forms, with or without 6219820Sjeff * modification, are permitted provided that the following conditions 7219820Sjeff * are met: 8219820Sjeff * 1. Redistributions of source code must retain the above copyright 9219820Sjeff * notice, this list of conditions and the following disclaimer. 10219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 11219820Sjeff * notice, this list of conditions and the following disclaimer in the 12219820Sjeff * documentation and/or other materials provided with the distribution. 13219820Sjeff * 3. All advertising materials mentioning features or use of this software 14219820Sjeff * must display the following acknowledgement: 15219820Sjeff * This product includes software developed by the University of 16219820Sjeff * California, Berkeley and its contributors. 17219820Sjeff * 4. Neither the name of the University nor the names of its contributors 18219820Sjeff * may be used to endorse or promote products derived from this software 19219820Sjeff * without specific prior written permission. 20219820Sjeff * 21219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22219820Sjeff * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23219820Sjeff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24219820Sjeff * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25219820Sjeff * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26219820Sjeff * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27219820Sjeff * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28219820Sjeff * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29219820Sjeff * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30219820Sjeff * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31219820Sjeff * SUCH DAMAGE. 32219820Sjeff * 33219820Sjeff * @(#)limits.h 8.3 (Berkeley) 1/4/94 34219820Sjeff * $FreeBSD: head/sys/arm/include/_limits.h 108175 2002-12-22 06:38:45Z tjr $ 35219820Sjeff */ 36219820Sjeff 37219820Sjeff#ifndef _MACHINE_LIMITS_H_ 38219820Sjeff#define _MACHINE_LIMITS_H_ 39219820Sjeff 40219820Sjeff#define CHAR_BIT 8 /* number of bits in a char */ 41219820Sjeff 42219820Sjeff/* 43219820Sjeff * According to ANSI (section 2.2.4.2), the values below must be usable by 44219820Sjeff * #if preprocessing directives. Additionally, the expression must have the 45219820Sjeff * same type as would an expression that is an object of the corresponding 46219820Sjeff * type converted according to the integral promotions. The subtraction for 47219820Sjeff * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 48219820Sjeff * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 49219820Sjeff * These numbers are for the default configuration of gcc. They work for 50219820Sjeff * some other compilers as well, but this should not be depended on. 51219820Sjeff */ 52219820Sjeff#define SCHAR_MAX 0x7f /* max value for a signed char */ 53219820Sjeff#define SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ 54219820Sjeff 55219820Sjeff#define UCHAR_MAX 0xff /* max value for an unsigned char */ 56219820Sjeff 57219820Sjeff#ifdef __CHAR_UNSIGNED__ 58219820Sjeff#define CHAR_MAX UCHAR_MAX /* max value for a char */ 59219820Sjeff#define CHAR_MIN 0 /* min value for a char */ 60219820Sjeff#else 61219820Sjeff#define CHAR_MAX SCHAR_MAX /* max value for a char */ 62219820Sjeff#define CHAR_MIN SCHAR_MIN /* min value for a char */ 63219820Sjeff#endif 64219820Sjeff 65219820Sjeff#define USHRT_MAX 0xffff /* max value for an unsigned short */ 66219820Sjeff#define SHRT_MAX 0x7fff /* max value for a short */ 67219820Sjeff#define SHRT_MIN (-0x7fff - 1) /* min value for a short */ 68219820Sjeff 69219820Sjeff#define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 70219820Sjeff#define INT_MAX 0x7fffffff /* max value for an int */ 71219820Sjeff#define INT_MIN (-0x7fffffff - 1) /* min value for an int */ 72219820Sjeff 73219820Sjeff/* Bad hack for gcc configured to give 64-bit longs. */ 74219820Sjeff#ifdef _LARGE_LONG 75219820Sjeff#define ULONG_MAX 0xffffffffffffffffUL 76219820Sjeff#define LONG_MAX 0x7fffffffffffffffL 77219820Sjeff#define LONG_MIN (-0x7fffffffffffffffL - 1) 78219820Sjeff#else 79219820Sjeff#define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 80219820Sjeff#define LONG_MAX 0x7fffffffL /* max value for a long */ 81219820Sjeff#define LONG_MIN (-0x7fffffffL - 1) /* min value for a long */ 82219820Sjeff#endif 83219820Sjeff 84219820Sjeff /* max value for an unsigned long long */ 85219820Sjeff#define ULLONG_MAX 0xffffffffffffffffULL 86219820Sjeff#define LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */ 87219820Sjeff#define LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */ 88219820Sjeff 89219820Sjeff#if !defined(_ANSI_SOURCE) 90219820Sjeff#define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 91219820Sjeff 92219820Sjeff#if !defined(_POSIX_SOURCE) 93219820Sjeff#define SIZE_T_MAX UINT_MAX /* max value for a size_t */ 94219820Sjeff 95219820Sjeff#define OFF_MAX LLONG_MAX /* max value for a off_t */ 96219820Sjeff#define OFF_MIN LLONG_MIN /* min value for a off_t */ 97219820Sjeff 98219820Sjeff/* Quads and long longs are the same size. Ensure they stay in sync. */ 99219820Sjeff#define UQUAD_MAX ULLONG_MAX /* max value for a uquad_t */ 100219820Sjeff#define QUAD_MAX LLONG_MAX /* max value for a quad_t */ 101219820Sjeff#define QUAD_MIN LLONG_MIN /* min value for a quad_t */ 102219820Sjeff#endif /* !_POSIX_SOURCE */ 103219820Sjeff#endif /* !_ANSI_SOURCE */ 104219820Sjeff 105219820Sjeff#endif /* !_MACHINE_LIMITS_H_ */ 106219820Sjeff