sys/powerpc/include/_limits.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   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
  32 #ifndef _MACHINE__LIMITS_H_
  33 #define _MACHINE__LIMITS_H_
  34
  35 /*
  36  * According to ANSI (section 2.2.4.2), the values below must be usable by
  37  * #if preprocessing directives.  Additionally, the expression must have the
  38  * same type as would an expression that is an object of the corresponding
  39  * type converted according to the integral promotions.  The subtraction for
  40  * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
  41  * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
  42  */
  43
  44 #define __CHAR_BIT      8               /* number of bits in a char */
  45
  46 #define __SCHAR_MAX     0x7f            /* max value for a signed char */
  47 #define __SCHAR_MIN     (-0x7f - 1)     /* min value for a signed char */
  48
  49 #define __UCHAR_MAX     0xff            /* max value for an unsigned char */
  50
  51 #define __USHRT_MAX     0xffff          /* max value for an unsigned short */
  52 #define __SHRT_MAX      0x7fff          /* max value for a short */
  53 #define __SHRT_MIN      (-0x7fff - 1)   /* min value for a short */
  54
  55 #define __UINT_MAX      0xffffffff      /* max value for an unsigned int */
  56 #define __INT_MAX       0x7fffffff      /* max value for an int */
  57 #define __INT_MIN       (-0x7fffffff - 1)       /* min value for an int */
  58
  59 #ifdef __LP64__
  60 #define __ULONG_MAX     0xffffffffffffffff
  61 #define __LONG_MAX      0x7fffffffffffffff
  62 #define __LONG_MIN      (-0x7fffffffffffffff - 1)
  63 #define __LONG_BIT      64
  64 #else
  65 #define __ULONG_MAX     0xffffffffUL    /* max value for an unsigned long */
  66 #define __LONG_MAX      0x7fffffffL     /* max value for a long */
  67 #define __LONG_MIN      (-0x7fffffffL - 1)      /* min value for a long */
  68 #define __LONG_BIT      32
  69 #endif
  70
  71 #define __ULLONG_MAX    0xffffffffffffffffULL
  72 #define __LLONG_MAX     0x7fffffffffffffffLL    /* max value for a long long */
  73 #define __LLONG_MIN     (-0x7fffffffffffffffLL - 1)  /* min for a long long */
  74
  75 #ifdef __LP64__
  76 #define __SSIZE_MAX     __LONG_MAX      /* max value for a ssize_t */
  77 #define __SIZE_T_MAX    __ULONG_MAX     /* max value for a size_t */
  78 #else
  79 #define __SSIZE_MAX     __INT_MAX       /* max value for a ssize_t */
  80 #define __SIZE_T_MAX    __UINT_MAX      /* max value for a size_t */
  81 #endif
  82
  83 #define __OFF_MAX       __LLONG_MAX     /* max value for an off_t */
  84 #define __OFF_MIN       __LLONG_MIN     /* min value for an off_t */
  85
  86 /* Quads and long longs are the same size.  Ensure they stay in sync. */
  87 #define __UQUAD_MAX     __ULLONG_MAX    /* max value for a uquad_t */
  88 #define __QUAD_MAX      __LLONG_MAX     /* max value for a quad_t */
  89 #define __QUAD_MIN      __LLONG_MIN     /* min value for a quad_t */
  90
  91 #define __WORD_BIT      32
  92
  93 /* Minimum signal stack size. */
  94 #define __MINSIGSTKSZ   (512 * 4)
  95
  96 #endif /* !_MACHINE__LIMITS_H_ */