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limits.h revision 1.1
      1  1.1  deraadt /*
      2  1.1  deraadt  * Copyright (c) 1988 The Regents of the University of California.
      3  1.1  deraadt  * All rights reserved.
      4  1.1  deraadt  *
      5  1.1  deraadt  * Redistribution and use in source and binary forms, with or without
      6  1.1  deraadt  * modification, are permitted provided that the following conditions
      7  1.1  deraadt  * are met:
      8  1.1  deraadt  * 1. Redistributions of source code must retain the above copyright
      9  1.1  deraadt  *    notice, this list of conditions and the following disclaimer.
     10  1.1  deraadt  * 2. Redistributions in binary form must reproduce the above copyright
     11  1.1  deraadt  *    notice, this list of conditions and the following disclaimer in the
     12  1.1  deraadt  *    documentation and/or other materials provided with the distribution.
     13  1.1  deraadt  * 3. All advertising materials mentioning features or use of this software
     14  1.1  deraadt  *    must display the following acknowledgement:
     15  1.1  deraadt  *	This product includes software developed by the University of
     16  1.1  deraadt  *	California, Berkeley and its contributors.
     17  1.1  deraadt  * 4. Neither the name of the University nor the names of its contributors
     18  1.1  deraadt  *    may be used to endorse or promote products derived from this software
     19  1.1  deraadt  *    without specific prior written permission.
     20  1.1  deraadt  *
     21  1.1  deraadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  1.1  deraadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  1.1  deraadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  1.1  deraadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  1.1  deraadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  1.1  deraadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  1.1  deraadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  1.1  deraadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  1.1  deraadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  1.1  deraadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  1.1  deraadt  * SUCH DAMAGE.
     32  1.1  deraadt  *
     33  1.1  deraadt  * from: @(#)limits.h	7.6 (Berkeley) 6/25/92
     34  1.1  deraadt  * $Id: limits.h,v 1.1 1993/10/12 03:22:39 deraadt Exp $
     35  1.1  deraadt  */
     36  1.1  deraadt 
     37  1.1  deraadt #define	CHAR_BIT	8		/* number of bits in a char */
     38  1.1  deraadt #define	MB_LEN_MAX	1		/* no multibyte characters */
     39  1.1  deraadt 
     40  1.1  deraadt #define	CLK_TCK		60		/* ticks per second */
     41  1.1  deraadt 
     42  1.1  deraadt /*
     43  1.1  deraadt  * According to ANSI (section 2.2.4.2), the values below must be usable by
     44  1.1  deraadt  * #if preprocessing directives.  Additionally, the expression must have the
     45  1.1  deraadt  * same type as would an expression that is an object of the corresponding
     46  1.1  deraadt  * type converted according to the integral promotions.  The subtraction for
     47  1.1  deraadt  * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
     48  1.1  deraadt  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
     49  1.1  deraadt  * These numbers work for pcc as well.
     50  1.1  deraadt  */
     51  1.1  deraadt #define	SCHAR_MAX	127		/* min value for a signed char */
     52  1.1  deraadt #define	SCHAR_MIN	-128		/* max value for a signed char */
     53  1.1  deraadt 
     54  1.1  deraadt #define	UCHAR_MAX	255		/* max value for an unsigned char */
     55  1.1  deraadt #define	CHAR_MAX	127		/* max value for a char */
     56  1.1  deraadt #define	CHAR_MIN	-128		/* min value for a char */
     57  1.1  deraadt 
     58  1.1  deraadt #define	USHRT_MAX	65535		/* max value for an unsigned short */
     59  1.1  deraadt #define	SHRT_MAX	32767		/* max value for a short */
     60  1.1  deraadt #define	SHRT_MIN	-32768		/* min value for a short */
     61  1.1  deraadt 
     62  1.1  deraadt #define	UINT_MAX	4294967295	/* max value for an unsigned int */
     63  1.1  deraadt #define	INT_MAX		2147483647	/* max value for an int */
     64  1.1  deraadt #define	INT_MIN		(-2147483647-1)	/* min value for an int */
     65  1.1  deraadt 
     66  1.1  deraadt #define	ULONG_MAX	4294967295	/* max value for an unsigned long */
     67  1.1  deraadt #define	LONG_MAX	2147483647	/* max value for a long */
     68  1.1  deraadt #define	LONG_MIN	(-2147483647-1)	/* min value for a long */
     69  1.1  deraadt 
     70  1.1  deraadt /* Maximum/minimum values for types from <machine/include/ansi.h>. */
     71  1.1  deraadt #ifndef _ANSI_SOURCE
     72  1.1  deraadt 
     73  1.1  deraadt /* Quad constants must be written as expressions; #define GCC_ME_HARDER. */
     74  1.1  deraadt #define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
     75  1.1  deraadt 					/* max value for a quad_t */
     76  1.1  deraadt #define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
     77  1.1  deraadt #define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */
     78  1.1  deraadt 
     79  1.1  deraadt #define	SIZE_T_MAX	UINT_MAX
     80  1.1  deraadt #endif
     81