gcc/glimits.h

   1 #ifndef _LIMITS_H___
   2 #define _LIMITS_H___
   3
   4 /* Number of bits in a `char'.  */
   5 #undef CHAR_BIT
   6 #define CHAR_BIT 8
   7
   8 /* Maximum length of a multibyte character.  */
   9 #ifndef MB_LEN_MAX
  10 #define MB_LEN_MAX 1
  11 #endif
  12
  13 /* Minimum and maximum values a `signed char' can hold.  */
  14 #undef SCHAR_MIN
  15 #define SCHAR_MIN (-128)
  16 #undef SCHAR_MAX
  17 #define SCHAR_MAX 127
  18
  19 /* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
  20 #undef UCHAR_MAX
  21 #define UCHAR_MAX 255
  22
  23 /* Minimum and maximum values a `char' can hold.  */
  24 #ifdef __CHAR_UNSIGNED__
  25 #undef CHAR_MIN
  26 #define CHAR_MIN 0
  27 #undef CHAR_MAX
  28 #define CHAR_MAX 255
  29 #else
  30 #undef CHAR_MIN
  31 #define CHAR_MIN (-128)
  32 #undef CHAR_MAX
  33 #define CHAR_MAX 127
  34 #endif
  35
  36 #ifndef __SHRT_MAX__
  37 #define __SHRT_MAX__ 32767
  38 #endif
  39
  40 /* Minimum and maximum values a `signed short int' can hold.  */
  41 #undef SHRT_MIN
  42 #define SHRT_MIN (-SHRT_MAX-1)
  43 #undef SHRT_MAX
  44 #define SHRT_MAX __SHRT_MAX__
  45
  46 /* Minimum and maximum values a `signed int' can hold.  */
  47 #ifndef __INT_MAX__
  48 #define __INT_MAX__ 2147483647
  49 #endif
  50 #undef INT_MIN
  51 #define INT_MIN (-INT_MAX-1)
  52 #undef INT_MAX
  53 #define INT_MAX __INT_MAX__
  54
  55 /* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
  56 #undef USHRT_MAX
  57 #if __SHRT_MAX__ == __INT_MAX__
  58 #define USHRT_MAX (SHRT_MAX * 2U + 1U)
  59 #else
  60 #define USHRT_MAX (SHRT_MAX * 2 + 1)
  61 #endif
  62
  63 /* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
  64 #undef UINT_MAX
  65 #define UINT_MAX (INT_MAX * 2U + 1)
  66
  67 /* Minimum and maximum values a `signed long int' can hold.
  68    (Same as `int').  */
  69 #ifndef __LONG_MAX__
  70 #if defined (__alpha__) || (defined (__sparc__) && defined(__arch64__)) || defined (__sparcv9)
  71 #define __LONG_MAX__ 9223372036854775807L
  72 #else
  73 #define __LONG_MAX__ 2147483647L
  74 #endif /* __alpha__ || sparc64 */
  75 #endif
  76 #undef LONG_MIN
  77 #define LONG_MIN (-LONG_MAX-1)
  78 #undef LONG_MAX
  79 #define LONG_MAX __LONG_MAX__
  80
  81 /* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
  82 #undef ULONG_MAX
  83 #define ULONG_MAX (LONG_MAX * 2UL + 1)
  84
  85 #ifndef __LONG_LONG_MAX__
  86 #define __LONG_LONG_MAX__ 9223372036854775807LL
  87 #endif
  88
  89 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
  90 /* Minimum and maximum values a `signed long long int' can hold.  */
  91 #undef LLONG_MIN
  92 #define LLONG_MIN (-LLONG_MAX-1)
  93 #undef LLONG_MAX
  94 #define LLONG_MAX __LONG_LONG_MAX__
  95
  96 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
  97 #undef ULLONG_MAX
  98 #define ULLONG_MAX (LLONG_MAX * 2ULL + 1)
  99 #endif
 100
 101 #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
 102 /* Minimum and maximum values a `signed long long int' can hold.  */
 103 #undef LONG_LONG_MIN
 104 #define LONG_LONG_MIN (-LONG_LONG_MAX-1)
 105 #undef LONG_LONG_MAX
 106 #define LONG_LONG_MAX __LONG_LONG_MAX__
 107
 108 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
 109 #undef ULONG_LONG_MAX
 110 #define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
 111 #endif
 112
 113 #endif /* _LIMITS_H___ */