1 /* $OpenBSD: limits.h,v 1.13 2005/12/31 19:29:38 millert Exp $ */ 2 /* $NetBSD: limits.h,v 1.7 1994/10/26 00:56:00 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1988 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)limits.h 5.9 (Berkeley) 4/3/91 33 */ 34 35 #ifndef _LIMITS_H_ 36 #define _LIMITS_H_ 37 38 #include <sys/cdefs.h> 39 40 /* Historically bionic exposed the content of <float.h> from <limits.h> and <sys/limits.h> too. */ 41 #include <float.h> 42 43 #include <linux/limits.h> 44 45 #define PASS_MAX 128 /* _PASSWORD_LEN from <pwd.h> */ 46 47 #define NL_ARGMAX 9 48 #define NL_LANGMAX 14 49 #define NL_MSGMAX 32767 50 #define NL_NMAX 1 51 #define NL_SETMAX 255 52 #define NL_TEXTMAX 255 53 54 #define TMP_MAX 308915776 55 56 /* TODO: get all these from the compiler's <limits.h>? */ 57 58 #define CHAR_BIT 8 59 #ifdef __LP64__ 60 # define LONG_BIT 64 61 #else 62 # define LONG_BIT 32 63 #endif 64 #define WORD_BIT 32 65 66 #define SCHAR_MAX 0x7f /* max value for a signed char */ 67 #define SCHAR_MIN (-0x7f-1) /* min value for a signed char */ 68 69 #define UCHAR_MAX 0xffU /* max value for an unsigned char */ 70 #ifdef __CHAR_UNSIGNED__ 71 # define CHAR_MIN 0 /* min value for a char */ 72 # define CHAR_MAX 0xff /* max value for a char */ 73 #else 74 # define CHAR_MAX 0x7f 75 # define CHAR_MIN (-0x7f-1) 76 #endif 77 78 #define USHRT_MAX 0xffffU /* max value for an unsigned short */ 79 #define SHRT_MAX 0x7fff /* max value for a short */ 80 #define SHRT_MIN (-0x7fff-1) /* min value for a short */ 81 82 #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 83 #define INT_MAX 0x7fffffff /* max value for an int */ 84 #define INT_MIN (-0x7fffffff-1) /* min value for an int */ 85 86 #ifdef __LP64__ 87 # define ULONG_MAX 0xffffffffffffffffUL /* max value for unsigned long */ 88 # define LONG_MAX 0x7fffffffffffffffL /* max value for a signed long */ 89 # define LONG_MIN (-0x7fffffffffffffffL-1) /* min value for a signed long */ 90 #else 91 # define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 92 # define LONG_MAX 0x7fffffffL /* max value for a long */ 93 # define LONG_MIN (-0x7fffffffL-1)/* min value for a long */ 94 #endif 95 96 # define ULLONG_MAX 0xffffffffffffffffULL /* max value for unsigned long long */ 97 # define LLONG_MAX 0x7fffffffffffffffLL /* max value for a signed long long */ 98 # define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min value for a signed long long */ 99 100 /* GLibc compatibility definitions. 101 Note that these are defined by GCC's <limits.h> 102 only when __GNU_LIBRARY__ is defined, i.e. when 103 targetting GLibc. */ 104 #ifndef LONG_LONG_MIN 105 #define LONG_LONG_MIN LLONG_MIN 106 #endif 107 108 #ifndef LONG_LONG_MAX 109 #define LONG_LONG_MAX LLONG_MAX 110 #endif 111 112 #ifndef ULONG_LONG_MAX 113 #define ULONG_LONG_MAX ULLONG_MAX 114 #endif 115 116 #if defined(__USE_BSD) || defined(__BIONIC__) /* Historically bionic exposed these. */ 117 # define UID_MAX UINT_MAX /* max value for a uid_t */ 118 # define GID_MAX UINT_MAX /* max value for a gid_t */ 119 #if defined(__LP64__) 120 #define SIZE_T_MAX ULONG_MAX 121 #else 122 #define SIZE_T_MAX UINT_MAX 123 #endif 124 #endif 125 126 #if defined(__LP64__) 127 #define SSIZE_MAX LONG_MAX 128 #else 129 #define SSIZE_MAX INT_MAX 130 #endif 131 132 #define MB_LEN_MAX 4 133 134 #define NZERO 20 135 136 #define IOV_MAX 1024 137 #define SEM_VALUE_MAX 0x3fffffff 138 139 /* POSIX says these belong in <unistd.h> but BSD has some in <limits.h>. */ 140 #include <bits/posix_limits.h> 141 142 #define HOST_NAME_MAX _POSIX_HOST_NAME_MAX 143 #define LOGIN_NAME_MAX 256 144 #define TTY_NAME_MAX 32 145 146 /* >= _POSIX_THREAD_DESTRUCTOR_ITERATIONS */ 147 #define PTHREAD_DESTRUCTOR_ITERATIONS 4 148 /* >= _POSIX_THREAD_KEYS_MAX */ 149 #define PTHREAD_KEYS_MAX 128 150 /* bionic has no specific limit */ 151 #undef PTHREAD_THREADS_MAX 152 153 #endif /* !_LIMITS_H_ */ 154
