limits.h revision 1.14
11.14Sbjh21/* $NetBSD: limits.h,v 1.14 2003/04/28 23:16:24 bjh21 Exp $ */ 21.6Sderaadt 31.1Sderaadt/* 41.1Sderaadt * Copyright (c) 1988 The Regents of the University of California. 51.1Sderaadt * All rights reserved. 61.1Sderaadt * 71.1Sderaadt * Redistribution and use in source and binary forms, with or without 81.1Sderaadt * modification, are permitted provided that the following conditions 91.1Sderaadt * are met: 101.1Sderaadt * 1. Redistributions of source code must retain the above copyright 111.1Sderaadt * notice, this list of conditions and the following disclaimer. 121.1Sderaadt * 2. Redistributions in binary form must reproduce the above copyright 131.1Sderaadt * notice, this list of conditions and the following disclaimer in the 141.1Sderaadt * documentation and/or other materials provided with the distribution. 151.1Sderaadt * 3. All advertising materials mentioning features or use of this software 161.1Sderaadt * must display the following acknowledgement: 171.1Sderaadt * This product includes software developed by the University of 181.1Sderaadt * California, Berkeley and its contributors. 191.1Sderaadt * 4. Neither the name of the University nor the names of its contributors 201.1Sderaadt * may be used to endorse or promote products derived from this software 211.1Sderaadt * without specific prior written permission. 221.1Sderaadt * 231.1Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 241.1Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 251.1Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 261.1Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 271.1Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 281.1Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 291.1Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 301.1Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 311.1Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 321.1Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 331.1Sderaadt * SUCH DAMAGE. 341.1Sderaadt * 351.6Sderaadt * @(#)limits.h 8.3 (Berkeley) 1/4/94 361.1Sderaadt */ 371.1Sderaadt 381.8Sperry#ifndef _MACHINE_LIMITS_H_ 391.8Sperry#define _MACHINE_LIMITS_H_ 401.8Sperry 411.14Sbjh21#include <sys/featuretest.h> 421.14Sbjh21 431.1Sderaadt#define CHAR_BIT 8 /* number of bits in a char */ 441.12Stshiozak#define MB_LEN_MAX 32 /* no multibyte characters */ 451.1Sderaadt 461.3Spk#define SCHAR_MIN (-0x7f-1) /* max value for a signed char */ 471.1Sderaadt#define SCHAR_MAX 0x7f /* min value for a signed char */ 481.1Sderaadt 491.7Spk#define UCHAR_MAX 0xffU /* max value for an unsigned char */ 501.1Sderaadt#define CHAR_MAX 0x7f /* max value for a char */ 511.3Spk#define CHAR_MIN (-0x7f-1) /* min value for a char */ 521.1Sderaadt 531.7Spk#define USHRT_MAX 0xffffU /* max value for an unsigned short */ 541.1Sderaadt#define SHRT_MAX 0x7fff /* max value for a short */ 551.3Spk#define SHRT_MIN (-0x7fff-1) /* min value for a short */ 561.1Sderaadt 571.7Spk#define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 581.1Sderaadt#define INT_MAX 0x7fffffff /* max value for an int */ 591.3Spk#define INT_MIN (-0x7fffffff-1) /* min value for an int */ 601.10Smrg 611.10Smrg#ifdef __arch64__ 621.10Smrg#define ULONG_MAX 0xffffffffffffffffUL /* max value for an unsigned long */ 631.10Smrg#define LONG_MAX 0x7fffffffffffffffL /* max value for a long */ 641.10Smrg#define LONG_MIN (-0x7fffffffffffffffL-1) /* min value for a long */ 651.10Smrg#else 661.7Spk#define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 671.7Spk#define LONG_MAX 0x7fffffffL /* max value for a long */ 681.7Spk#define LONG_MIN (-0x7fffffffL-1) /* min value for a long */ 691.10Smrg#endif 701.2Sderaadt 711.14Sbjh21#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 721.14Sbjh21 defined(_NETBSD_SOURCE) 731.10Smrg#define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 741.11Skleink 751.14Sbjh21#if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \ 761.14Sbjh21 defined(_NETBSD_SOURCE) 771.11Skleink#define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 781.11Skleink#define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 791.11Skleink#define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 801.11Skleink#endif 811.2Sderaadt 821.14Sbjh21#if defined(_NETBSD_SOURCE) 831.10Smrg#define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 841.4Sderaadt 851.4Sderaadt/* GCC requires that quad constants be written as expressions. */ 861.4Sderaadt#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 871.4Sderaadt /* max value for a quad_t */ 881.4Sderaadt#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 891.4Sderaadt#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 901.4Sderaadt 911.14Sbjh21#endif /* _NETBSD_SOURCE */ 921.14Sbjh21#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 931.5Sjtc 941.14Sbjh21#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 951.10Smrg#ifdef __arch64__ 961.10Smrg#define LONG_BIT 64 971.10Smrg#else 981.5Sjtc#define LONG_BIT 32 991.10Smrg#endif 1001.5Sjtc#define WORD_BIT 32 1011.5Sjtc 1021.5Sjtc#define DBL_DIG 15 1031.5Sjtc#define DBL_MAX 1.7976931348623157E+308 1041.5Sjtc#define DBL_MIN 2.2250738585072014E-308 1051.5Sjtc 1061.5Sjtc#define FLT_DIG 6 1071.5Sjtc#define FLT_MAX 3.40282347E+38F 1081.5Sjtc#define FLT_MIN 1.17549435E-38F 1091.5Sjtc#endif 1101.8Sperry 1111.10Smrg#endif /* _MACHINE_LIMITS_H_ */ 112