sys/arch/alpha/include/limits.h

   1 /* $NetBSD: limits.h,v 1.10.38.1 2007/10/03 19:22:02 garbled Exp $ */
   2
   3 /*
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  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    8.3 (Berkeley) 1/4/94
  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 #define MB_LEN_MAX      32              /* Allow 31 bit UTF2 */
  41
  42 /*
  43  * According to ANSI (section 2.2.4.2), the values below must be usable by
  44  * #if preprocessing directives.  Additionally, the expression must have the
  45  * same type as would an expression that is an object of the corresponding
  46  * type converted according to the integral promotions.  The subtraction for
  47  * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
  48  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
  49  * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
  50  * are written as hex so that GCC will be quiet about large integer constants.
  51  */
  52 #define SCHAR_MAX       0x7f            /* max value for a signed char */
  53 #define SCHAR_MIN       (-0x7f-1)       /* min value for a signed char */
  54
  55 #define UCHAR_MAX       0xff            /* max value for an unsigned char */
  56 #define CHAR_MAX        0x7f            /* max value for a char */
  57 #define CHAR_MIN        (-0x7f-1)       /* min value for a char */
  58
  59 #define USHRT_MAX       0xffff          /* max value for an unsigned short */
  60 #define SHRT_MAX        0x7fff          /* max value for a short */
  61 #define SHRT_MIN        (-0x7fff-1)     /* min value for a short */
  62
  63 #define UINT_MAX        0xffffffffU     /* max value for an unsigned int */
  64 #define INT_MAX         0x7fffffff      /* max value for an int */
  65 #define INT_MIN         (-0x7fffffff-1) /* min value for an int */
  66
  67 #define ULONG_MAX       0xffffffffffffffffUL    /* max for an unsigned long */
  68 #define LONG_MAX        0x7fffffffffffffffL     /* max for a long */
  69 #define LONG_MIN        (-0x7fffffffffffffffL-1) /* min for a long */
  70
  71 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
  72     defined(_NETBSD_SOURCE)
  73 #define SSIZE_MAX       LONG_MAX        /* max value for a ssize_t */
  74
  75 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
  76     defined(_NETBSD_SOURCE)
  77 #define ULLONG_MAX      0xffffffffffffffffULL   /* max unsigned long long */
  78 #define LLONG_MAX       0x7fffffffffffffffLL    /* max signed long long */
  79 #define LLONG_MIN       (-0x7fffffffffffffffLL-1) /* min signed long long */
  80 #endif
  81
  82 #if defined(_NETBSD_SOURCE)
  83 #define SIZE_T_MAX      ULONG_MAX       /* max value for a size_t */
  84
  85 /* Quads and longs are the same on the alpha */
  86 #define UQUAD_MAX       (ULONG_MAX)     /* max value for a uquad_t */
  87 #define QUAD_MAX        (LONG_MAX)      /* max value for a quad_t */
  88 #define QUAD_MIN        (LONG_MIN)      /* min value for a quad_t */
  89
  90 #endif /* _NETBSD_SOURCE */
  91 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
  92
  93 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  94 #define LONG_BIT        64
  95 #define WORD_BIT        32
  96
  97 #define DBL_DIG         15
  98 #define DBL_MAX         1.7976931348623157E+308
  99 #define DBL_MIN         2.2250738585072014E-308
 100
 101 #define FLT_DIG         6
 102 #define FLT_MAX         3.40282347E+38F
 103 #define FLT_MIN         1.17549435E-38F
 104 #endif
 105
 106 #endif /* _MACHINE_LIMITS_H_ */