126 lines
5.4 KiB
C
126 lines
5.4 KiB
C
/* $NetBSD: limits.h,v 1.8 2007/10/17 19:54:40 garbled Exp $ */
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/* $OpenBSD: limits.h,v 1.2 2000/07/31 20:06:02 millert Exp $ */
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/*
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* Copyright (c) 1992-1994, The University of Utah and
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* the Computer Systems Laboratory at the University of Utah (CSL).
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* All rights reserved.
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*
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* Permission to use, copy, modify and distribute this software is hereby
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* granted provided that (1) source code retains these copyright, permission,
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* and disclaimer notices, and (2) redistributions including binaries
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* reproduce the notices in supporting documentation, and (3) all advertising
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* materials mentioning features or use of this software display the following
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* acknowledgement: ``This product includes software developed by the
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* Computer Systems Laboratory at the University of Utah.''
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*
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* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
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* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
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* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* CSL requests users of this software to return to csl-dist@cs.utah.edu any
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* improvements that they make and grant CSL redistribution rights.
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*
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* Utah $Hdr: limits.h 1.6 94/12/16$
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*/
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/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)limits.h 8.3 (Berkeley) 1/4/94
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*/
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#include <sys/featuretest.h>
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#define CHAR_BIT 8 /* number of bits in a char */
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#define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
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/*
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* According to ANSI (section 2.2.4.2), the values below must be usable by
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* #if preprocessing directives. Additionally, the expression must have the
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* same type as would an expression that is an object of the corresponding
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* type converted according to the integral promotions. The subtraction for
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* INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
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* unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
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* These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values
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* are written as hex so that GCC will be quiet about large integer constants.
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*/
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#define SCHAR_MAX 0x7f /* min value for a signed char */
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#define SCHAR_MIN (-0x7f-1) /* max value for a signed char */
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#define UCHAR_MAX 0xff /* max value for an unsigned char */
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#define CHAR_MAX 0x7f /* max value for a char */
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#define CHAR_MIN (-0x7f-1) /* min value for a char */
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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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#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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#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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#define SIZE_T_MAX UINT_MAX /* max value for a size_t */
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/* GCC requires that quad constants be written as expressions. */
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#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */
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/* max value for a quad_t */
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#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
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#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */
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#define ULLONG_MAX (UQUAD_MAX) /* max value for unsigned long long */
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#define LLONG_MAX (QUAD_MAX) /* max value for a signed long long */
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#define LLONG_MIN (QUAD_MIN) /* min value for a signed long long */
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#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */
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#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
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#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
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#define LONG_BIT 32
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#define WORD_BIT 32
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#define DBL_DIG 15
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#define DBL_MAX 1.7976931348623157E+308
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#define DBL_MIN 2.2250738585072014E-308
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#define FLT_DIG 6
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#define FLT_MAX 3.40282347E+38F
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#define FLT_MIN 1.17549435E-38F
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#endif
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