limits.h revision 1.11
1 /* $NetBSD: limits.h,v 1.11 2003/04/28 23:16:22 bjh21 Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. 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 _POWERPC_LIMITS_H_ 39 #define _POWERPC_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 /* Allow 31 bit UTF2 */ 45 46 /* 47 * According to ANSI (section 2.2.4.2), the values below must be usable by 48 * #if preprocessing directives. Additionally, the expression must have the 49 * same type as would an expression that is an object of the corresponding 50 * type converted according to the integral promotions. The subtraction for 51 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an 52 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 53 * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values 54 * are written as hex so that GCC will be quiet about large integer constants. 55 */ 56 #define SCHAR_MAX 0x7f /* min value for a signed char */ 57 #define SCHAR_MIN (-0x7f-1) /* max value for a signed char */ 58 59 #define UCHAR_MAX 0xffU /* max value for an unsigned char */ 60 #define CHAR_MAX 0xffU /* max value for a char */ 61 #define CHAR_MIN 0 /* min value for a char */ 62 63 #define USHRT_MAX 0xffffU /* max value for an unsigned short */ 64 #define SHRT_MAX 0x7fff /* max value for a short */ 65 #define SHRT_MIN (-0x7fff-1) /* min value for a short */ 66 67 #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 68 #define INT_MAX 0x7fffffff /* max value for an int */ 69 #define INT_MIN (-0x7fffffff-1) /* min value for an int */ 70 71 #ifdef _LP64 72 #define ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */ 73 #define LONG_MAX 0x7fffffffffffffffL /* max for a long */ 74 #define LONG_MIN (-0x7fffffffffffffffL-1) /* min for a long */ 75 #else 76 #define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 77 #define LONG_MAX 0x7fffffffL /* max value for a long */ 78 #define LONG_MIN (-0x7fffffff-1) /* min value for a long */ 79 #endif 80 81 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 82 defined(_NETBSD_SOURCE) 83 #ifdef _LP64 84 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 85 #else 86 #define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 87 #endif 88 89 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \ 90 defined(_NETBSD_SOURCE) 91 #define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 92 #define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 93 #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 94 #endif 95 96 #if defined(_NETBSD_SOURCE) 97 #ifdef _LP64 98 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 99 #else 100 #define SIZE_T_MAX UINT_MAX /* max value for a size_t */ 101 #endif 102 103 #ifdef _LP64 104 /* Quads and longs are the same on LP64. */ 105 #define UQUAD_MAX (ULONG_MAX) 106 #define QUAD_MAX (LONG_MAX) 107 #define QUAD_MIN (LONG_MIN) 108 #else 109 /* GCC requires that quad constants be written as expressions. */ 110 #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 111 /* max value for a quad_t */ 112 #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 113 #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 114 #endif 115 116 #endif /* _NETBSD_SOURCE */ 117 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 118 119 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 120 #ifdef _LP64 121 #define LONG_BIT 64 122 #else 123 #define LONG_BIT 32 124 #endif 125 #define WORD_BIT 32 126 127 #define DBL_DIG 15 128 #define DBL_MAX 1.7976931348623157E+308 129 #define DBL_MIN 2.2250738585072014E-308 130 131 #define FLT_DIG 6 132 #define FLT_MAX 3.40282347E+38F 133 #define FLT_MIN 1.17549435E-38F 134 #endif 135 136 #endif /* _POWERPC_LIMITS_H_ */ 137
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