EXTERNAL_HEADERS/bsd/i386/limits.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1988, 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  *
  26  * Redistribution and use in source and binary forms, with or without
  27  * modification, are permitted provided that the following conditions
  28  * are met:
  29  * 1. Redistributions of source code must retain the above copyright
  30  *    notice, this list of conditions and the following disclaimer.
  31  * 2. Redistributions in binary form must reproduce the above copyright
  32  *    notice, this list of conditions and the following disclaimer in the
  33  *    documentation and/or other materials provided with the distribution.
  34  * 3. All advertising materials mentioning features or use of this software
  35  *    must display the following acknowledgement:
  36  *      This product includes software developed by the University of
  37  *      California, Berkeley and its contributors.
  38  * 4. Neither the name of the University nor the names of its contributors
  39  *    may be used to endorse or promote products derived from this software
  40  *    without specific prior written permission.
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  43  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  44  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  45  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  46  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  50  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  51  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  *
  54  *      @(#)limits.h    8.3 (Berkeley) 1/4/94
  55  */
  56 /*
  57  * HISTORY
  58  *
  59  *      10-July-97  Umesh Vaishampayan  (umeshv@apple.com)
  60  *              Avoid multiple includes.
  61  */
  62
  63 #ifndef _I386_LIMITS_H_
  64 #define _I386_LIMITS_H_
  65
  66 #define CHAR_BIT        8               /* number of bits in a char */
  67 #define MB_LEN_MAX      6               /* Allow 31 bit UTF2 */
  68
  69
  70 #define CLK_TCK         100             /* ticks per second */
  71
  72 /*
  73  * According to ANSI (section 2.2.4.2), the values below must be usable by
  74  * #if preprocessing directives.  Additionally, the expression must have the
  75  * same type as would an expression that is an object of the corresponding
  76  * type converted according to the integral promotions.  The subtraction for
  77  * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
  78  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
  79  * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
  80  * are written as hex so that GCC will be quiet about large integer constants.
  81  */
  82 #define SCHAR_MAX       127             /* min value for a signed char */
  83 #define SCHAR_MIN       (-128)          /* max value for a signed char */
  84
  85 #define UCHAR_MAX       255             /* max value for an unsigned char */
  86 #define CHAR_MAX        127             /* max value for a char */
  87 #define CHAR_MIN        (-128)          /* min value for a char */
  88
  89 #define USHRT_MAX       65535           /* max value for an unsigned short */
  90 #define SHRT_MAX        32767           /* max value for a short */
  91 #define SHRT_MIN        (-32768)        /* min value for a short */
  92
  93 #define UINT_MAX        0xffffffff      /* max value for an unsigned int */
  94 #define INT_MAX         2147483647      /* max value for an int */
  95 #define INT_MIN         (-2147483647-1) /* min value for an int */
  96
  97 #define ULONG_MAX       0xffffffff      /* max value for an unsigned long */
  98 #define LONG_MAX        2147483647      /* max value for a long */
  99 #define LONG_MIN        (-2147483647-1) /* min value for a long */
 100
 101 #if !defined(_ANSI_SOURCE)
 102 #define SSIZE_MAX       INT_MAX         /* max value for a ssize_t */
 103
 104 #if !defined(_POSIX_SOURCE)
 105 #define SIZE_T_MAX      UINT_MAX        /* max value for a size_t */
 106
 107 /* GCC requires that quad constants be written as expressions. */
 108 #define UQUAD_MAX       ((u_quad_t)0-1) /* max value for a uquad_t */
 109                                         /* max value for a quad_t */
 110 #define QUAD_MAX        ((quad_t)(UQUAD_MAX >> 1))
 111 #define QUAD_MIN        (-QUAD_MAX-1)   /* min value for a quad_t */
 112
 113 #endif /* !_POSIX_SOURCE */
 114 #endif /* !_ANSI_SOURCE */
 115
 116 #endif /* _I386_LIMITS_H_ */