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limits.h
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1993-09-05
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/*
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)limits.h 7.2 (Berkeley) 6/28/90
*/
#ifndef _MACHINE_LIMITS_H
#define _MACHINE_LIMITS_H
#define CHAR_BIT 8 /* number of bits in a char */
#define CLK_TCK 60 /* ticks per second */
#define MB_LEN_MAX 1 /* no multibyte characters */
#define SCHAR_MIN 0x80 /* max value for a signed char */
#define SCHAR_MAX 0x7f /* min value for a signed char */
#define UCHAR_MAX 0xffu /* max value for an unsigned char */
#define CHAR_MAX 0x7f /* max value for a char */
#define CHAR_MIN 0x80 /* min value for a char */
#define USHRT_MAX 0xffffu /* max value for an unsigned short */
#define SHRT_MAX 0x7fff /* max value for a short */
#define SHRT_MIN 0x8000 /* min value for a short */
#define UINT_MAX 0xffffffffU /* max value for an unsigned int */
#define INT_MAX 0x7fffffff /* max value for an int */
#define INT_MIN 0x80000000 /* min value for an int */
#define ULONG_MAX 0xffffffffU /* max value for an unsigned long */
#define LONG_MAX 0x7fffffff /* max value for a long */
#define LONG_MIN 0x80000000 /* min value for a long */
/* here comes C++ support .. */
#define MINSHORT SHORT_MIN
#ifndef MININT
#define MININT INT_MIN
#endif
#define MINLONG LONG_MIN
#define MAXSHORT SHRT_MAX
#ifndef MAXINT
#define MAXINT INT_MAX
#endif
#define MAXLONG LONG_MAX
#define CHARBITS CHAR_BIT
#define SHORTBITS (CHAR_BIT * sizeof (short))
#define INTBITS (CHAR_BIT * sizeof (int))
#define LONGBITS (CHAR_BIT * sizeof (long))
#define PTRBITS (CHAR_BIT * sizeof (char *))
#define DOUBLEBITS (CHAR_BIT * sizeof (double))
#define FLOATBITS (CHAR_BIT * sizeof (float))
#define HIBITS MINSHORT
#define HIBITL MINLONG
#ifndef BITSPERBYTE
#define BITSPERBYTE CHAR_BIT
#endif
#ifndef BITS
#define BITS(type) (CHAR_BIT * sizeof (type))
#endif
#endif /* _MACHINE_LIMITS_H */