126 lines
4.0 KiB
C
126 lines
4.0 KiB
C
/* $OpenBSD: limits.h,v 1.10 2012/06/30 20:21:10 guenther Exp $ */
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/*
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* Copyright (c) 2002 Marc Espie.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD
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* PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_LIMITS_H_
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#define _SYS_LIMITS_H_
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#include <sys/cdefs.h>
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/* Common definitions for limits.h. */
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/* Legacy */
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#include <machine/limits.h>
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#define CHAR_BIT 8 /* number of bits in a char */
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#define SCHAR_MAX 0x7f /* max value for a signed char */
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#define SCHAR_MIN (-0x7f-1) /* min value for a signed char */
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#define UCHAR_MAX 0xff /* max value for an unsigned char */
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#ifdef __CHAR_UNSIGNED__
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# define CHAR_MIN 0 /* min value for a char */
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# define CHAR_MAX 0xff /* max value for a char */
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#else
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# define CHAR_MAX 0x7f
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# define CHAR_MIN (-0x7f-1)
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#endif
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#define MB_LEN_MAX 4 /* Allow UTF-8 (RFC 3629) */
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#define USHRT_MAX 0xffff /* max value for an unsigned short */
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#define SHRT_MAX 0x7fff /* max value for a short */
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#define SHRT_MIN (-0x7fff-1) /* min value for a short */
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#define UINT_MAX 0xffffffffU /* max value for an unsigned int */
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#define INT_MAX 0x7fffffff /* max value for an int */
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#define INT_MIN (-0x7fffffff-1) /* min value for an int */
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#ifdef __LP64__
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# define ULONG_MAX 0xffffffffffffffffUL
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/* max value for unsigned long */
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# define LONG_MAX 0x7fffffffffffffffL
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/* max value for a signed long */
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# define LONG_MIN (-0x7fffffffffffffffL-1)
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/* min value for a signed long */
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#else
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# define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */
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# define LONG_MAX 0x7fffffffL /* max value for a long */
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# define LONG_MIN (-0x7fffffffL-1)/* min value for a long */
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#endif
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#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999
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# define ULLONG_MAX 0xffffffffffffffffULL
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/* max value for unsigned long long */
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# define LLONG_MAX 0x7fffffffffffffffLL
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/* max value for a signed long long */
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# define LLONG_MIN (-0x7fffffffffffffffLL-1)
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/* min value for a signed long long */
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#endif
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#if __BSD_VISIBLE
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# define UID_MAX UINT_MAX /* max value for a uid_t */
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# define GID_MAX UINT_MAX /* max value for a gid_t */
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#endif
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#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200809
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# ifdef __LP64__
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# define LONG_BIT 64
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# else
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# define LONG_BIT 32
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# endif
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# define WORD_BIT 32
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#endif
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#if __XPG_VISIBLE < 600
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# include <machine/_float.h>
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/* XSI defines marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001 */
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# ifndef FLT_DIG
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# define FLT_DIG __FLT_DIG
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# endif
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# ifndef FLT_MAX
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# define FLT_MAX __FLT_MAX
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# endif
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# ifndef DBL_DIG
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# define DBL_DIG __DBL_DIG
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# endif
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# ifndef DBL_MAX
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# define DBL_MAX __DBL_MAX
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# endif
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/* XSI defines marked LEGACY in XPG4v2 and removed in XPG5 */
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# if __XPG_VISIBLE < 500
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# ifndef FLT_MIN
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# define FLT_MIN __FLT_MIN
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# endif
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# ifndef DBL_MIN
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# define DBL_MIN __DBL_MIN
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# endif
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# endif
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#endif /* __XPG_VISIBLE < 600 */
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#endif
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