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88 lines
3.9 KiB
C
88 lines
3.9 KiB
C
/*
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* $Id$
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*/
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#ifndef _MACHINE_LIMITS_H_
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#define _MACHINE_LIMITS_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 127 /* min value for a signed char */
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#define SCHAR_MIN (-128) /* max value for a signed char */
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#define UCHAR_MAX 255 /* max value for an unsigned char */
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#define CHAR_MAX 127 /* max value for a char */
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#define CHAR_MIN (-128) /* min value for a char */
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#define USHRT_MAX 65535 /* max value for an unsigned short */
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#define SHRT_MAX 32767 /* max value for a short */
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#define SHRT_MIN (-32768) /* min value for a short */
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#define UINT_MAX 0xffffffff /* max value for an unsigned int */
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#define INT_MAX 2147483647 /* max value for an int */
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#define INT_MIN (-2147483647-1) /* min value for an int */
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#define ULONG_MAX 0xffffffff /* max value for an unsigned long */
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#define LONG_MAX 2147483647 /* max value for a long */
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#define LONG_MIN (-2147483647-1) /* min value for a long */
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#if !defined(_ANSI_SOURCE)
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#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
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#if !defined(_POSIX_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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#endif /* !_POSIX_SOURCE */
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#endif /* !_ANSI_SOURCE */
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#endif /* !_MACHINE_LIMITS_H_ */
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