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 __CHAR_BIT__
   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 (-SCHAR_MAX - 1)
  16 #undef SCHAR_MAX
  17 #define SCHAR_MAX __SCHAR_MAX__
  18
  19 /* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
  20 #undef UCHAR_MAX
  21 #if __SCHAR_MAX__ == __INT_MAX__
  22 # define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
  23 #else
  24 # define UCHAR_MAX (SCHAR_MAX * 2 + 1)
  25 #endif
  26
  27 /* Minimum and maximum values a `char' can hold.  */
  28 #ifdef __CHAR_UNSIGNED__
  29 # undef CHAR_MIN
  30 # if __SCHAR_MAX__ == __INT_MAX__
  31 #  define CHAR_MIN 0U
  32 # else
  33 #  define CHAR_MIN 0
  34 # endif
  35 # undef CHAR_MAX
  36 # define CHAR_MAX UCHAR_MAX
  37 #else
  38 # undef CHAR_MIN
  39 # define CHAR_MIN SCHAR_MIN
  40 # undef CHAR_MAX
  41 # define CHAR_MAX SCHAR_MAX
  42 #endif
  43
  44 /* Minimum and maximum values a `signed short int' can hold.  */
  45 #undef SHRT_MIN
  46 #define SHRT_MIN (-SHRT_MAX - 1)
  47 #undef SHRT_MAX
  48 #define SHRT_MAX __SHRT_MAX__
  49
  50 /* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
  51 #undef USHRT_MAX
  52 #if __SHRT_MAX__ == __INT_MAX__
  53 # define USHRT_MAX (SHRT_MAX * 2U + 1U)
  54 #else
  55 # define USHRT_MAX (SHRT_MAX * 2 + 1)
  56 #endif
  57
  58 /* Minimum and maximum values a `signed int' can hold.  */
  59 #undef INT_MIN
  60 #define INT_MIN (-INT_MAX - 1)
  61 #undef INT_MAX
  62 #define INT_MAX __INT_MAX__
  63
  64 /* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
  65 #undef UINT_MAX
  66 #define UINT_MAX (INT_MAX * 2U + 1U)
  67
  68 /* Minimum and maximum values a `signed long int' can hold.
  69    (Same as `int').  */
  70 #undef LONG_MIN
  71 #define LONG_MIN (-LONG_MAX - 1L)
  72 #undef LONG_MAX
  73 #define LONG_MAX __LONG_MAX__
  74
  75 /* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
  76 #undef ULONG_MAX
  77 #define ULONG_MAX (LONG_MAX * 2UL + 1UL)
  78
  79 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
  80 /* Minimum and maximum values a `signed long long int' can hold.  */
  81 # undef LLONG_MIN
  82 # define LLONG_MIN (-LLONG_MAX - 1LL)
  83 # undef LLONG_MAX
  84 # define LLONG_MAX __LONG_LONG_MAX__
  85
  86 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
  87 # undef ULLONG_MAX
  88 # define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
  89 #endif
  90
  91 #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
  92 /* Minimum and maximum values a `signed long long int' can hold.  */
  93 # undef LONG_LONG_MIN
  94 # define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
  95 # undef LONG_LONG_MAX
  96 # define LONG_LONG_MAX __LONG_LONG_MAX__
  97
  98 /* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
  99 # undef ULONG_LONG_MAX
 100 # define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
 101 #endif
 102
 103 #endif /* _LIMITS_H___ */