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      1 /*	$NetBSD: limits.h,v 1.21 2019/01/21 20:28:18 dholland Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *      @(#)limits.h    7.2 (Berkeley) 6/28/90
     32  */
     33 
     34 #ifndef	_MACHINE_LIMITS_H_
     35 #define	_MACHINE_LIMITS_H_
     36 
     37 #include <sys/featuretest.h>
     38 
     39 #define CHAR_BIT        8               /* number of bits in a char */
     40 
     41 #define UCHAR_MAX       0xff		/* max value for an unsigned char */
     42 #define SCHAR_MAX       0x7f            /* max value for a signed char */
     43 #define SCHAR_MIN       (-0x7f-1)       /* min value for a signed char */
     44 
     45 #define USHRT_MAX       0xffff		/* max value for an unsigned short */
     46 #define SHRT_MAX        0x7fff          /* max value for a short */
     47 #define SHRT_MIN        (-0x7fff-1)     /* min value for a short */
     48 
     49 #define UINT_MAX        0xffffffffU     /* max value for an unsigned int */
     50 #define INT_MAX         0x7fffffff      /* max value for an int */
     51 #define INT_MIN         (-0x7fffffff-1) /* min value for an int */
     52 
     53 #define ULONG_MAX       0xffffffffUL    /* max value for an unsigned long */
     54 #define LONG_MAX        0x7fffffffL     /* max value for a long */
     55 #define LONG_MIN        (-0x7fffffffL-1)/* min value for a long */
     56 
     57 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
     58     defined(_NETBSD_SOURCE)
     59 #define	ULLONG_MAX	0xffffffffffffffffULL	/* max unsigned long long */
     60 #define	LLONG_MAX	0x7fffffffffffffffLL	/* max signed long long */
     61 #define	LLONG_MIN	(-0x7fffffffffffffffLL-1) /* min signed long long */
     62 #endif
     63 
     64 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
     65     defined(_NETBSD_SOURCE)
     66 #define SSIZE_MAX       LONG_MAX        /* max value for a ssize_t */
     67 
     68 #if defined(_NETBSD_SOURCE)
     69 #define	SSIZE_MIN	LONG_MIN	/* min value for a ssize_t */
     70 #define SIZE_T_MAX      ULONG_MAX       /* max value for a size_t */
     71 
     72 #define UQUAD_MAX       0xffffffffffffffffULL           /* max unsigned quad */
     73 #define QUAD_MAX        0x7fffffffffffffffLL            /* max signed quad */
     74 #define QUAD_MIN        (-0x7fffffffffffffffLL-1)       /* min signed quad */
     75 
     76 #endif /* _NETBSD_SOURCE */
     77 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
     78 
     79 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
     80 #define LONG_BIT	32
     81 #define WORD_BIT	32
     82 
     83 #define DBL_DIG         16
     84 #define DBL_MAX         1.701411834604692294E+38
     85 #define DBL_MIN         2.938735877055718770E-39
     86 
     87 #define FLT_DIG         6
     88 #define FLT_MAX         1.70141173E+38F
     89 #define FLT_MIN         2.93873588E-39F
     90 #endif
     91 
     92 #endif /* _MACHINE_LIMITS_H_ */
     93