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 /* Minimum and maximum values a `signed short int' can hold.  */
  37 #undef SHRT_MIN
  38 /* For the sake of 16 bit hosts, we may not use -32768 */
  39 #define SHRT_MIN (-32767-1)
  40 #undef SHRT_MAX
  41 #define SHRT_MAX 32767
  42
  43 /* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
  44 #undef USHRT_MAX
  45 #define USHRT_MAX 65535
  46
  47 /* Minimum and maximum values a `signed int' can hold.  */
  48 #ifndef __INT_MAX__
  49 #define __INT_MAX__ 2147483647
  50 #endif
  51 #undef INT_MIN
  52 #define INT_MIN (-INT_MAX-1)
  53 #undef INT_MAX
  54 #define INT_MAX __INT_MAX__
  55
  56 /* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
  57 #undef UINT_MAX
  58 #define UINT_MAX (INT_MAX * 2U + 1)
  59
  60 /* Minimum and maximum values a `signed long int' can hold.
  61    (Same as `int').  */
  62 #ifndef __LONG_MAX__
  63 #if defined (__alpha__) || (defined (__sparc__) && defined(__arch64__)) || defined (__sparcv9) || defined (__s390x__)
  64 #define __LONG_MAX__ 9223372036854775807L
  65 #else
  66 #define __LONG_MAX__ 2147483647L
  67 #endif /* __alpha__ || sparc64 */
  68 #endif
  69 #undef LONG_MIN
  70 #define LONG_MIN (-LONG_MAX-1)
  71 #undef LONG_MAX
  72 #define LONG_MAX __LONG_MAX__
  73
  74 /* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
  75 #undef ULONG_MAX
  76 #define ULONG_MAX (LONG_MAX * 2UL + 1)
  77
  78 #ifndef __LONG_LONG_MAX__
  79 #define __LONG_LONG_MAX__ 9223372036854775807LL
  80 #endif
  81
  82 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
  83 /* Minimum and maximum values a `signed long long int' can hold.  */
  84 #undef LLONG_MIN
  85 #define LLONG_MIN (-LLONG_MAX-1)
  86 #undef LLONG_MAX
  87 #define LLONG_MAX __LONG_LONG_MAX__
  88
  89 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
  90 #undef ULLONG_MAX
  91 #define ULLONG_MAX (LLONG_MAX * 2ULL + 1)
  92 #endif
  93
  94 #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
  95 /* Minimum and maximum values a `signed long long int' can hold.  */
  96 #undef LONG_LONG_MIN
  97 #define LONG_LONG_MIN (-LONG_LONG_MAX-1)
  98 #undef LONG_LONG_MAX
  99 #define LONG_LONG_MAX __LONG_LONG_MAX__
 100
 101 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
 102 #undef ULONG_LONG_MAX
 103 #define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
 104 #endif
 105
 106 #endif /* _LIMITS_H___ */