include/stdint.h

   1 /*
   2  * Copyright (c) 2000-2010 Apple Inc.
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _STDINT_H_
   7 #define _STDINT_H_
   8
   9 #if __LP64__
  10 #define __WORDSIZE 64
  11 #else
  12 #define __WORDSIZE 32
  13 #endif
  14
  15 /* from ISO/IEC 988:1999 spec */
  16
  17 /* 7.18.1.1 Exact-width integer types */
  18 #include <sys/_types/_int8_t.h>
  19 #include <sys/_types/_int16_t.h>
  20 #include <sys/_types/_int32_t.h>
  21 #include <sys/_types/_int64_t.h>
  22
  23 #include <_types/_uint8_t.h>
  24 #include <_types/_uint16_t.h>
  25 #include <_types/_uint32_t.h>
  26 #include <_types/_uint64_t.h>
  27
  28 /* 7.18.1.2 Minimum-width integer types */
  29 typedef int8_t           int_least8_t;
  30 typedef int16_t         int_least16_t;
  31 typedef int32_t         int_least32_t;
  32 typedef int64_t         int_least64_t;
  33 typedef uint8_t         uint_least8_t;
  34 typedef uint16_t       uint_least16_t;
  35 typedef uint32_t       uint_least32_t;
  36 typedef uint64_t       uint_least64_t;
  37
  38
  39 /* 7.18.1.3 Fastest-width integer types */
  40 typedef int8_t            int_fast8_t;
  41 typedef int16_t          int_fast16_t;
  42 typedef int32_t          int_fast32_t;
  43 typedef int64_t          int_fast64_t;
  44 typedef uint8_t          uint_fast8_t;
  45 typedef uint16_t        uint_fast16_t;
  46 typedef uint32_t        uint_fast32_t;
  47 typedef uint64_t        uint_fast64_t;
  48
  49
  50 /* 7.18.1.4 Integer types capable of holding object pointers */
  51
  52 #include <sys/_types.h>
  53 #include <sys/_types/_intptr_t.h>
  54 #include <sys/_types/_uintptr_t.h>
  55
  56
  57 /* 7.18.1.5 Greatest-width integer types */
  58 #include <_types/_intmax_t.h>
  59 #include <_types/_uintmax_t.h>
  60
  61 /* 7.18.4 Macros for integer constants */
  62 #define INT8_C(v)    (v)
  63 #define INT16_C(v)   (v)
  64 #define INT32_C(v)   (v)
  65 #define INT64_C(v)   (v ## LL)
  66
  67 #define UINT8_C(v)   (v)
  68 #define UINT16_C(v)  (v)
  69 #define UINT32_C(v)  (v ## U)
  70 #define UINT64_C(v)  (v ## ULL)
  71
  72 #ifdef __LP64__
  73 #define INTMAX_C(v)  (v ## L)
  74 #define UINTMAX_C(v) (v ## UL)
  75 #else
  76 #define INTMAX_C(v)  (v ## LL)
  77 #define UINTMAX_C(v) (v ## ULL)
  78 #endif
  79
  80 /* 7.18.2 Limits of specified-width integer types:
  81  *   These #defines specify the minimum and maximum limits
  82  *   of each of the types declared above.
  83  *
  84  *   They must have "the same type as would an expression that is an
  85  *   object of the corresponding type converted according to the integer
  86  *   promotion".
  87  */
  88
  89
  90 /* 7.18.2.1 Limits of exact-width integer types */
  91 #define INT8_MAX         127
  92 #define INT16_MAX        32767
  93 #define INT32_MAX        2147483647
  94 #define INT64_MAX        9223372036854775807LL
  95
  96 #define INT8_MIN          -128
  97 #define INT16_MIN         -32768
  98    /*
  99       Note:  the literal "most negative int" cannot be written in C --
 100       the rules in the standard (section 6.4.4.1 in C99) will give it
 101       an unsigned type, so INT32_MIN (and the most negative member of
 102       any larger signed type) must be written via a constant expression.
 103    */
 104 #define INT32_MIN        (-INT32_MAX-1)
 105 #define INT64_MIN        (-INT64_MAX-1)
 106
 107 #define UINT8_MAX         255
 108 #define UINT16_MAX        65535
 109 #define UINT32_MAX        4294967295U
 110 #define UINT64_MAX        18446744073709551615ULL
 111
 112 /* 7.18.2.2 Limits of minimum-width integer types */
 113 #define INT_LEAST8_MIN    INT8_MIN
 114 #define INT_LEAST16_MIN   INT16_MIN
 115 #define INT_LEAST32_MIN   INT32_MIN
 116 #define INT_LEAST64_MIN   INT64_MIN
 117
 118 #define INT_LEAST8_MAX    INT8_MAX
 119 #define INT_LEAST16_MAX   INT16_MAX
 120 #define INT_LEAST32_MAX   INT32_MAX
 121 #define INT_LEAST64_MAX   INT64_MAX
 122
 123 #define UINT_LEAST8_MAX   UINT8_MAX
 124 #define UINT_LEAST16_MAX  UINT16_MAX
 125 #define UINT_LEAST32_MAX  UINT32_MAX
 126 #define UINT_LEAST64_MAX  UINT64_MAX
 127
 128 /* 7.18.2.3 Limits of fastest minimum-width integer types */
 129 #define INT_FAST8_MIN     INT8_MIN
 130 #define INT_FAST16_MIN    INT16_MIN
 131 #define INT_FAST32_MIN    INT32_MIN
 132 #define INT_FAST64_MIN    INT64_MIN
 133
 134 #define INT_FAST8_MAX     INT8_MAX
 135 #define INT_FAST16_MAX    INT16_MAX
 136 #define INT_FAST32_MAX    INT32_MAX
 137 #define INT_FAST64_MAX    INT64_MAX
 138
 139 #define UINT_FAST8_MAX    UINT8_MAX
 140 #define UINT_FAST16_MAX   UINT16_MAX
 141 #define UINT_FAST32_MAX   UINT32_MAX
 142 #define UINT_FAST64_MAX   UINT64_MAX
 143
 144 /* 7.18.2.4 Limits of integer types capable of holding object pointers */
 145
 146 #if __WORDSIZE == 64
 147 #define INTPTR_MAX        9223372036854775807L
 148 #else
 149 #define INTPTR_MAX        2147483647L
 150 #endif
 151 #define INTPTR_MIN        (-INTPTR_MAX-1)
 152
 153 #if __WORDSIZE == 64
 154 #define UINTPTR_MAX       18446744073709551615UL
 155 #else
 156 #define UINTPTR_MAX       4294967295UL
 157 #endif
 158
 159 /* 7.18.2.5 Limits of greatest-width integer types */
 160 #define INTMAX_MAX        INTMAX_C(9223372036854775807)
 161 #define UINTMAX_MAX       UINTMAX_C(18446744073709551615)
 162 #define INTMAX_MIN        (-INTMAX_MAX-1)
 163
 164 /* 7.18.3 "Other" */
 165 #if __WORDSIZE == 64
 166 #define PTRDIFF_MIN       INTMAX_MIN
 167 #define PTRDIFF_MAX       INTMAX_MAX
 168 #else
 169 #define PTRDIFF_MIN       INT32_MIN
 170 #define PTRDIFF_MAX       INT32_MAX
 171 #endif
 172
 173 #define SIZE_MAX          UINTPTR_MAX
 174
 175 #if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1
 176 #define RSIZE_MAX         (SIZE_MAX >> 1)
 177 #endif
 178
 179 #ifndef WCHAR_MAX
 180 #  ifdef __WCHAR_MAX__
 181 #    define WCHAR_MAX     __WCHAR_MAX__
 182 #  else
 183 #    define WCHAR_MAX     0x7fffffff
 184 #  endif
 185 #endif
 186
 187 /* WCHAR_MIN should be 0 if wchar_t is an unsigned type and
 188    (-WCHAR_MAX-1) if wchar_t is a signed type.  Unfortunately,
 189    it turns out that -fshort-wchar changes the signedness of
 190    the type. */
 191 #ifndef WCHAR_MIN
 192 #  if WCHAR_MAX == 0xffff
 193 #    define WCHAR_MIN       0
 194 #  else
 195 #    define WCHAR_MIN       (-WCHAR_MAX-1)
 196 #  endif
 197 #endif
 198
 199 #define WINT_MIN          INT32_MIN
 200 #define WINT_MAX          INT32_MAX
 201
 202 #define SIG_ATOMIC_MIN    INT32_MIN
 203 #define SIG_ATOMIC_MAX    INT32_MAX
 204
 205 #endif /* _STDINT_H_ */