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limits.h revision 1.9.16.1
      1  1.9.16.1  mycroft /*	$NetBSD: limits.h,v 1.9.16.1 1998/05/10 03:47:48 mycroft Exp $	*/
      2       1.6      cgd 
      3       1.1  deraadt /*
      4       1.3    glass  * Copyright (c) 1988, 1993
      5       1.3    glass  *	The Regents of the University of California.  All rights reserved.
      6       1.1  deraadt  *
      7       1.1  deraadt  * Redistribution and use in source and binary forms, with or without
      8       1.1  deraadt  * modification, are permitted provided that the following conditions
      9       1.1  deraadt  * are met:
     10       1.1  deraadt  * 1. Redistributions of source code must retain the above copyright
     11       1.1  deraadt  *    notice, this list of conditions and the following disclaimer.
     12       1.1  deraadt  * 2. Redistributions in binary form must reproduce the above copyright
     13       1.1  deraadt  *    notice, this list of conditions and the following disclaimer in the
     14       1.1  deraadt  *    documentation and/or other materials provided with the distribution.
     15       1.1  deraadt  * 3. All advertising materials mentioning features or use of this software
     16       1.1  deraadt  *    must display the following acknowledgement:
     17       1.1  deraadt  *	This product includes software developed by the University of
     18       1.1  deraadt  *	California, Berkeley and its contributors.
     19       1.1  deraadt  * 4. Neither the name of the University nor the names of its contributors
     20       1.1  deraadt  *    may be used to endorse or promote products derived from this software
     21       1.1  deraadt  *    without specific prior written permission.
     22       1.1  deraadt  *
     23       1.1  deraadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24       1.1  deraadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25       1.1  deraadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26       1.1  deraadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27       1.1  deraadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28       1.1  deraadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29       1.1  deraadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30       1.1  deraadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31       1.1  deraadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32       1.1  deraadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33       1.1  deraadt  * SUCH DAMAGE.
     34       1.1  deraadt  *
     35       1.6      cgd  *	@(#)limits.h	8.3 (Berkeley) 1/4/94
     36       1.1  deraadt  */
     37       1.1  deraadt 
     38       1.1  deraadt #define	CHAR_BIT	8		/* number of bits in a char */
     39       1.3    glass #define	MB_LEN_MAX	6		/* Allow 31 bit UTF2 */
     40       1.1  deraadt 
     41       1.1  deraadt /*
     42       1.1  deraadt  * According to ANSI (section 2.2.4.2), the values below must be usable by
     43       1.1  deraadt  * #if preprocessing directives.  Additionally, the expression must have the
     44       1.1  deraadt  * same type as would an expression that is an object of the corresponding
     45       1.1  deraadt  * type converted according to the integral promotions.  The subtraction for
     46       1.1  deraadt  * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
     47       1.1  deraadt  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
     48       1.3    glass  * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
     49       1.3    glass  * are written as hex so that GCC will be quiet about large integer constants.
     50       1.1  deraadt  */
     51       1.1  deraadt #define	SCHAR_MAX	127		/* min value for a signed char */
     52       1.3    glass #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       1.3    glass #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       1.3    glass #define	SHRT_MIN	(-32768)	/* min value for a short */
     61       1.1  deraadt 
     62       1.3    glass #define	UINT_MAX	0xffffffff	/* 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       1.3    glass #define	ULONG_MAX	0xffffffff	/* 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       1.3    glass #if !defined(_ANSI_SOURCE)
     71       1.3    glass #define	SSIZE_MAX	INT_MAX		/* max value for a ssize_t */
     72       1.3    glass 
     73       1.5      jtc #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
     74       1.3    glass #define	SIZE_T_MAX	UINT_MAX	/* max value for a size_t */
     75       1.1  deraadt 
     76       1.3    glass /* GCC requires that quad constants be written as expressions. */
     77       1.1  deraadt #define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
     78       1.1  deraadt 					/* max value for a quad_t */
     79       1.1  deraadt #define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
     80       1.1  deraadt #define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */
     81       1.1  deraadt 
     82       1.5      jtc #endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */
     83       1.3    glass #endif /* !_ANSI_SOURCE */
     84       1.5      jtc 
     85       1.5      jtc #if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
     86       1.5      jtc #define LONG_BIT	32
     87       1.5      jtc #define WORD_BIT	32
     88       1.5      jtc 
     89       1.5      jtc #define DBL_DIG		15
     90  1.9.16.1  mycroft #define DBL_MAX		1.7976931348623157E+308
     91  1.9.16.1  mycroft #define DBL_MIN		2.2250738585072014E-308
     92       1.5      jtc 
     93       1.5      jtc #define FLT_DIG		6
     94       1.5      jtc #define FLT_MAX		3.40282347E+38F
     95       1.5      jtc #define FLT_MIN		1.17549435E-38F
     96       1.5      jtc #endif
     97