1 /* $NetBSD: limits.h,v 1.5 2010/06/07 13:52:31 tnozaki 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)limits.h 7.2 (Berkeley) 6/28/90 32 */ 33 34 #ifndef _MACHINE_LIMITS_H_ 35 #define _MACHINE_LIMITS_H_ 36 37 #define CHAR_BIT 8 /* number of bits in a char */ 38 39 #define SCHAR_MIN (-0x7f-1) /* max value for a signed char */ 40 #define SCHAR_MAX 0x7f /* min value for a signed char */ 41 42 #define UCHAR_MAX 0xff /* max value for an unsigned char */ 43 #define CHAR_MAX 0x7f /* max value for a char */ 44 #define CHAR_MIN (-0x7f-1) /* min value for a char */ 45 46 #define USHRT_MAX 0xffff /* max value for an unsigned short */ 47 #define SHRT_MAX 0x7fff /* max value for a short */ 48 #define SHRT_MIN (-0x7fff-1) /* min value for a short */ 49 50 #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 51 #define INT_MAX 0x7fffffff /* max value for an int */ 52 #define INT_MIN (-0x7fffffff-1) /* min value for an int */ 53 54 #define ULONG_MAX 0xffffffffffffffffUL /* max value for an unsigned long */ 55 #define LONG_MAX 0x7fffffffffffffffL /* max value for a long */ 56 #define LONG_MIN (-0x7fffffffffffffffL-1) /* min value for a long */ 57 58 59 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 60 defined(_NETBSD_SOURCE) 61 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 62 63 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \ 64 defined(_NETBSD_SOURCE) 65 #define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 66 #define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 67 #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 68 #endif 69 70 #if defined(_NETBSD_SOURCE) 71 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 72 73 /* GCC requires that quad constants be written as expressions. */ 74 #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 75 /* max value for a quad_t */ 76 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 77 #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 78 79 #endif /* _NETBSD_SOURCE */ 80 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 81 82 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 83 #define LONG_BIT 64 84 #define WORD_BIT 32 85 86 #define DBL_DIG 15 87 #define DBL_MAX 1.7976931348623157E+308 88 #define DBL_MIN 2.2250738585072014E-308 89 90 #define FLT_DIG 6 91 #define FLT_MAX 3.40282347E+38F 92 #define FLT_MIN 1.17549435E-38F 93 #endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */ 94 95 96 97 #endif /* _MACHINE_LIMITS_H_ */ 98