limits.h revision 1.11
1/* $NetBSD: limits.h,v 1.11 2000/03/07 19:33:01 kleink Exp $ */ 2 3/* 4 * Copyright (c) 1988 The Regents of the University of California. 5 * 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)limits.h 8.3 (Berkeley) 1/4/94 36 */ 37 38#ifndef _MACHINE_LIMITS_H_ 39#define _MACHINE_LIMITS_H_ 40 41#define CHAR_BIT 8 /* number of bits in a char */ 42#define MB_LEN_MAX 1 /* no multibyte characters */ 43 44#define SCHAR_MIN (-0x7f-1) /* max value for a signed char */ 45#define SCHAR_MAX 0x7f /* min value for a signed char */ 46 47#define UCHAR_MAX 0xffU /* max value for an unsigned char */ 48#define CHAR_MAX 0x7f /* max value for a char */ 49#define CHAR_MIN (-0x7f-1) /* min value for a char */ 50 51#define USHRT_MAX 0xffffU /* max value for an unsigned short */ 52#define SHRT_MAX 0x7fff /* max value for a short */ 53#define SHRT_MIN (-0x7fff-1) /* min value for a short */ 54 55#define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 56#define INT_MAX 0x7fffffff /* max value for an int */ 57#define INT_MIN (-0x7fffffff-1) /* min value for an int */ 58 59/* Make sure _LP64 is defined if we have a 64-bit compiler */ 60#if __arch64__||__sparcv9__ 61#ifndef _LP64 62#define _LP64 63#endif 64#endif 65 66#ifdef __arch64__ 67#define ULONG_MAX 0xffffffffffffffffUL /* max value for an unsigned long */ 68#define LONG_MAX 0x7fffffffffffffffL /* max value for a long */ 69#define LONG_MIN (-0x7fffffffffffffffL-1) /* min value for a long */ 70#else 71#define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 72#define LONG_MAX 0x7fffffffL /* max value for a long */ 73#define LONG_MIN (-0x7fffffffL-1) /* min value for a long */ 74#endif 75 76#if !defined(_ANSI_SOURCE) 77#define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 78 79#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \ 80 defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L 81#define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 82#define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 83#define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 84#endif 85 86#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 87#define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 88 89/* GCC requires that quad constants be written as expressions. */ 90#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 91 /* max value for a quad_t */ 92#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 93#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 94 95#endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 96#endif /* !_ANSI_SOURCE */ 97 98#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \ 99 defined(_XOPEN_SOURCE) 100#ifdef __arch64__ 101#define LONG_BIT 64 102#else 103#define LONG_BIT 32 104#endif 105#define WORD_BIT 32 106 107#define DBL_DIG 15 108#define DBL_MAX 1.7976931348623157E+308 109#define DBL_MIN 2.2250738585072014E-308 110 111#define FLT_DIG 6 112#define FLT_MAX 3.40282347E+38F 113#define FLT_MIN 1.17549435E-38F 114#endif 115 116#endif /* _MACHINE_LIMITS_H_ */ 117