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limits.h revision 1.6.2.1
      1  1.6.2.1  minoura /* $NetBSD: limits.h,v 1.6.2.1 2000/05/28 22:40:55 minoura Exp $ */
      2      1.1      cgd 
      3      1.1      cgd /*
      4      1.1      cgd  * Copyright (c) 1988, 1993
      5      1.1      cgd  *	The Regents of the University of California.  All rights reserved.
      6      1.1      cgd  *
      7      1.1      cgd  * Redistribution and use in source and binary forms, with or without
      8      1.1      cgd  * modification, are permitted provided that the following conditions
      9      1.1      cgd  * are met:
     10      1.1      cgd  * 1. Redistributions of source code must retain the above copyright
     11      1.1      cgd  *    notice, this list of conditions and the following disclaimer.
     12      1.1      cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13      1.1      cgd  *    notice, this list of conditions and the following disclaimer in the
     14      1.1      cgd  *    documentation and/or other materials provided with the distribution.
     15      1.1      cgd  * 3. All advertising materials mentioning features or use of this software
     16      1.1      cgd  *    must display the following acknowledgement:
     17      1.1      cgd  *	This product includes software developed by the University of
     18      1.1      cgd  *	California, Berkeley and its contributors.
     19      1.1      cgd  * 4. Neither the name of the University nor the names of its contributors
     20      1.1      cgd  *    may be used to endorse or promote products derived from this software
     21      1.1      cgd  *    without specific prior written permission.
     22      1.1      cgd  *
     23      1.1      cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24      1.1      cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25      1.1      cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26      1.1      cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27      1.1      cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28      1.1      cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29      1.1      cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30      1.1      cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31      1.1      cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32      1.1      cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33      1.1      cgd  * SUCH DAMAGE.
     34      1.1      cgd  *
     35      1.1      cgd  *	@(#)limits.h	8.3 (Berkeley) 1/4/94
     36      1.1      cgd  */
     37      1.1      cgd 
     38      1.4    perry #ifndef	_MACHINE_LIMITS_H_
     39      1.4    perry #define	_MACHINE_LIMITS_H_
     40      1.4    perry 
     41      1.1      cgd #define	CHAR_BIT	8		/* number of bits in a char */
     42  1.6.2.1  minoura #define	MB_LEN_MAX	32		/* Allow 31 bit UTF2 */
     43      1.1      cgd 
     44      1.1      cgd /*
     45      1.1      cgd  * According to ANSI (section 2.2.4.2), the values below must be usable by
     46      1.1      cgd  * #if preprocessing directives.  Additionally, the expression must have the
     47      1.1      cgd  * same type as would an expression that is an object of the corresponding
     48      1.1      cgd  * type converted according to the integral promotions.  The subtraction for
     49      1.1      cgd  * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
     50      1.1      cgd  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
     51      1.1      cgd  * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
     52      1.1      cgd  * are written as hex so that GCC will be quiet about large integer constants.
     53      1.1      cgd  */
     54      1.2      cgd #define	SCHAR_MAX	0x7f		/* max value for a signed char */
     55      1.2      cgd #define	SCHAR_MIN	(-0x7f-1)	/* min value for a signed char */
     56      1.1      cgd 
     57      1.2      cgd #define	UCHAR_MAX	0xffU		/* max value for an unsigned char */
     58      1.2      cgd #define	CHAR_MAX	0x7f		/* max value for a char */
     59      1.2      cgd #define	CHAR_MIN	(-0x7f-1)	/* min value for a char */
     60      1.2      cgd 
     61      1.2      cgd #define	USHRT_MAX	0xffffU		/* max value for an unsigned short */
     62      1.2      cgd #define	SHRT_MAX	0x7fff		/* max value for a short */
     63      1.2      cgd #define	SHRT_MIN	(-0x7fff-1)	/* min value for a short */
     64      1.2      cgd 
     65      1.2      cgd #define	UINT_MAX	0xffffffffU	/* max value for an unsigned int */
     66      1.2      cgd #define	INT_MAX		0x7fffffff	/* max value for an int */
     67      1.2      cgd #define	INT_MIN		(-0x7fffffff-1)	/* min value for an int */
     68      1.2      cgd 
     69      1.2      cgd #define	ULONG_MAX	0xffffffffffffffffUL	/* max for an unsigned long */
     70      1.2      cgd #define	LONG_MAX	0x7fffffffffffffffL	/* max for a long */
     71      1.2      cgd #define	LONG_MIN	(-0x7fffffffffffffffL-1) /* min for a long */
     72      1.1      cgd 
     73      1.1      cgd #if !defined(_ANSI_SOURCE)
     74      1.2      cgd #define	SSIZE_MAX	LONG_MAX	/* max value for a ssize_t */
     75      1.6   kleink 
     76      1.6   kleink #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
     77      1.6   kleink      defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L
     78      1.6   kleink #define	ULLONG_MAX	0xffffffffffffffffULL	/* max unsigned long long */
     79      1.6   kleink #define	LLONG_MAX	0x7fffffffffffffffLL	/* max signed long long */
     80      1.6   kleink #define	LLONG_MIN	(-0x7fffffffffffffffLL-1) /* min signed long long */
     81      1.6   kleink #endif
     82      1.1      cgd 
     83      1.5   kleink #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
     84      1.2      cgd #define	SIZE_T_MAX	ULONG_MAX	/* max value for a size_t */
     85      1.1      cgd 
     86      1.2      cgd /* Quads and longs are the same on the alpha */
     87      1.2      cgd #define	UQUAD_MAX	(ULONG_MAX)	/* max value for a uquad_t */
     88      1.2      cgd #define	QUAD_MAX	(LONG_MAX)	/* max value for a quad_t */
     89      1.2      cgd #define	QUAD_MIN	(LONG_MIN)	/* min value for a quad_t */
     90      1.1      cgd 
     91      1.5   kleink #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
     92      1.1      cgd #endif /* !_ANSI_SOURCE */
     93      1.2      cgd 
     94      1.5   kleink #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
     95      1.5   kleink     defined(_XOPEN_SOURCE)
     96      1.2      cgd #define	LONG_BIT	64
     97      1.2      cgd #define	WORD_BIT	32
     98      1.2      cgd 
     99      1.2      cgd #define	DBL_DIG		15
    100      1.2      cgd #define	DBL_MAX		1.7976931348623157E+308
    101      1.2      cgd #define	DBL_MIN		2.2250738585072014E-308
    102      1.2      cgd 
    103      1.2      cgd #define	FLT_DIG		6
    104      1.2      cgd #define	FLT_MAX		3.40282347E+38F
    105      1.2      cgd #define	FLT_MIN		1.17549435E-38F
    106      1.2      cgd #endif
    107      1.4    perry 
    108      1.4    perry #endif /* _MACHINE_LIMITS_H_ */
    109