gcc/glimits.h

   1 /* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999, 2000, 2001,
   2    2002 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25 #ifndef _LIMITS_H___
  26 #define _LIMITS_H___
  27
  28 /* Number of bits in a `char'.  */
  29 #undef CHAR_BIT
  30 #define CHAR_BIT __CHAR_BIT__
  31
  32 /* Maximum length of a multibyte character.  */
  33 #ifndef MB_LEN_MAX
  34 #define MB_LEN_MAX 1
  35 #endif
  36
  37 /* Minimum and maximum values a `signed char' can hold.  */
  38 #undef SCHAR_MIN
  39 #define SCHAR_MIN (-SCHAR_MAX - 1)
  40 #undef SCHAR_MAX
  41 #define SCHAR_MAX __SCHAR_MAX__
  42
  43 /* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
  44 #undef UCHAR_MAX
  45 #if __SCHAR_MAX__ == __INT_MAX__
  46 # define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
  47 #else
  48 # define UCHAR_MAX (SCHAR_MAX * 2 + 1)
  49 #endif
  50
  51 /* Minimum and maximum values a `char' can hold.  */
  52 #ifdef __CHAR_UNSIGNED__
  53 # undef CHAR_MIN
  54 # if __SCHAR_MAX__ == __INT_MAX__
  55 #  define CHAR_MIN 0U
  56 # else
  57 #  define CHAR_MIN 0
  58 # endif
  59 # undef CHAR_MAX
  60 # define CHAR_MAX UCHAR_MAX
  61 #else
  62 # undef CHAR_MIN
  63 # define CHAR_MIN SCHAR_MIN
  64 # undef CHAR_MAX
  65 # define CHAR_MAX SCHAR_MAX
  66 #endif
  67
  68 /* Minimum and maximum values a `signed short int' can hold.  */
  69 #undef SHRT_MIN
  70 #define SHRT_MIN (-SHRT_MAX - 1)
  71 #undef SHRT_MAX
  72 #define SHRT_MAX __SHRT_MAX__
  73
  74 /* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
  75 #undef USHRT_MAX
  76 #if __SHRT_MAX__ == __INT_MAX__
  77 # define USHRT_MAX (SHRT_MAX * 2U + 1U)
  78 #else
  79 # define USHRT_MAX (SHRT_MAX * 2 + 1)
  80 #endif
  81
  82 /* Minimum and maximum values a `signed int' can hold.  */
  83 #undef INT_MIN
  84 #define INT_MIN (-INT_MAX - 1)
  85 #undef INT_MAX
  86 #define INT_MAX __INT_MAX__
  87
  88 /* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
  89 #undef UINT_MAX
  90 #define UINT_MAX (INT_MAX * 2U + 1U)
  91
  92 /* Minimum and maximum values a `signed long int' can hold.
  93    (Same as `int').  */
  94 #undef LONG_MIN
  95 #define LONG_MIN (-LONG_MAX - 1L)
  96 #undef LONG_MAX
  97 #define LONG_MAX __LONG_MAX__
  98
  99 /* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
 100 #undef ULONG_MAX
 101 #define ULONG_MAX (LONG_MAX * 2UL + 1UL)
 102
 103 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 104 /* Minimum and maximum values a `signed long long int' can hold.  */
 105 # undef LLONG_MIN
 106 # define LLONG_MIN (-LLONG_MAX - 1LL)
 107 # undef LLONG_MAX
 108 # define LLONG_MAX __LONG_LONG_MAX__
 109
 110 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
 111 # undef ULLONG_MAX
 112 # define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
 113 #endif
 114
 115 #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
 116 /* Minimum and maximum values a `signed long long int' can hold.  */
 117 # undef LONG_LONG_MIN
 118 # define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
 119 # undef LONG_LONG_MAX
 120 # define LONG_LONG_MAX __LONG_LONG_MAX__
 121
 122 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
 123 # undef ULONG_LONG_MAX
 124 # define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
 125 #endif
 126
 127 #endif /* _LIMITS_H___ */