1 /* $NetBSD: limits.h,v 1.12 2003/04/28 23:16:25 bjh21 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 7.2 (Berkeley) 6/28/90 36 */ 37 38 #ifndef _MACHINE_LIMITS_H_ 39 #define _MACHINE_LIMITS_H_ 40 41 #include <sys/featuretest.h> 42 43 #define CHAR_BIT 8 /* number of bits in a char */ 44 #define MB_LEN_MAX 32 /* no multibyte characters */ 45 46 #define SCHAR_MAX 0x7f /* max value for a signed char */ 47 #define SCHAR_MIN (-0x7f-1) /* min value for a signed char */ 48 49 #define UCHAR_MAX 0xffU /* max value for an unsigned char */ 50 #define CHAR_MAX 0x7f /* max value for a char */ 51 #define CHAR_MIN (-0x7f-1) /* min value for a char */ 52 53 #define USHRT_MAX 0xffffU /* max value for an unsigned short */ 54 #define SHRT_MAX 0x7fff /* max value for a short */ 55 #define SHRT_MIN (-0x7fff-1) /* min value for a short */ 56 57 #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 58 #define INT_MAX 0x7fffffff /* max value for an int */ 59 #define INT_MIN (-0x7fffffff-1) /* min value for an int */ 60 61 #define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 62 #define LONG_MAX 0x7fffffffL /* max value for a long */ 63 #define LONG_MIN (-0x7fffffffL-1)/* min value for a long */ 64 65 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 66 defined(_NETBSD_SOURCE) 67 #ifdef __ELF__ 68 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 69 #else 70 #define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 71 #endif 72 73 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \ 74 defined(_NETBSD_SOURCE) 75 #define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 76 #define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 77 #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 78 #endif 79 80 #if defined(_NETBSD_SOURCE) 81 #ifdef __ELF__ 82 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 83 #else 84 #define SIZE_T_MAX UINT_MAX /* max value for a size_t */ 85 #endif 86 87 #define UQUAD_MAX 0xffffffffffffffffULL /* max unsigned quad */ 88 #define QUAD_MAX 0x7fffffffffffffffLL /* max signed quad */ 89 #define QUAD_MIN (-0x7fffffffffffffffLL-1) /* min signed quad */ 90 91 #endif /* _NETBSD_SOURCE */ 92 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 93 94 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 95 #define LONG_BIT 32 96 #define WORD_BIT 32 97 98 #define DBL_DIG 16 99 #define DBL_MAX 1.701411834604692294E+38 100 #define DBL_MIN 2.938735877055718770E-39 101 102 #define FLT_DIG 6 103 #define FLT_MAX 1.70141173E+38F 104 #define FLT_MIN 2.93873588E-39F 105 #endif 106 107 #endif /* _MACHINE_LIMITS_H_ */ 108