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 /* 7.18.2 Limits of specified-width integer types:
  62  *   These #defines specify the minimum and maximum limits
  63  *   of each of the types declared above.
  64  */
  65
  66
  67 /* 7.18.2.1 Limits of exact-width integer types */
  68 #define INT8_MAX         127
  69 #define INT16_MAX        32767
  70 #define INT32_MAX        2147483647
  71 #define INT64_MAX        9223372036854775807LL
  72
  73 #define INT8_MIN          -128
  74 #define INT16_MIN         -32768
  75    /*
  76       Note:  the literal "most negative int" cannot be written in C --
  77       the rules in the standard (section 6.4.4.1 in C99) will give it
  78       an unsigned type, so INT32_MIN (and the most negative member of
  79       any larger signed type) must be written via a constant expression.
  80    */
  81 #define INT32_MIN        (-INT32_MAX-1)
  82 #define INT64_MIN        (-INT64_MAX-1)
  83
  84 #define UINT8_MAX         255
  85 #define UINT16_MAX        65535
  86 #define UINT32_MAX        4294967295U
  87 #define UINT64_MAX        18446744073709551615ULL
  88
  89 /* 7.18.2.2 Limits of minimum-width integer types */
  90 #define INT_LEAST8_MIN    INT8_MIN
  91 #define INT_LEAST16_MIN   INT16_MIN
  92 #define INT_LEAST32_MIN   INT32_MIN
  93 #define INT_LEAST64_MIN   INT64_MIN
  94
  95 #define INT_LEAST8_MAX    INT8_MAX
  96 #define INT_LEAST16_MAX   INT16_MAX
  97 #define INT_LEAST32_MAX   INT32_MAX
  98 #define INT_LEAST64_MAX   INT64_MAX
  99
 100 #define UINT_LEAST8_MAX   UINT8_MAX
 101 #define UINT_LEAST16_MAX  UINT16_MAX
 102 #define UINT_LEAST32_MAX  UINT32_MAX
 103 #define UINT_LEAST64_MAX  UINT64_MAX
 104
 105 /* 7.18.2.3 Limits of fastest minimum-width integer types */
 106 #define INT_FAST8_MIN     INT8_MIN
 107 #define INT_FAST16_MIN    INT16_MIN
 108 #define INT_FAST32_MIN    INT32_MIN
 109 #define INT_FAST64_MIN    INT64_MIN
 110
 111 #define INT_FAST8_MAX     INT8_MAX
 112 #define INT_FAST16_MAX    INT16_MAX
 113 #define INT_FAST32_MAX    INT32_MAX
 114 #define INT_FAST64_MAX    INT64_MAX
 115
 116 #define UINT_FAST8_MAX    UINT8_MAX
 117 #define UINT_FAST16_MAX   UINT16_MAX
 118 #define UINT_FAST32_MAX   UINT32_MAX
 119 #define UINT_FAST64_MAX   UINT64_MAX
 120
 121 /* 7.18.2.4 Limits of integer types capable of holding object pointers */
 122
 123 #if __WORDSIZE == 64
 124 #define INTPTR_MIN        INT64_MIN
 125 #define INTPTR_MAX        INT64_MAX
 126 #else
 127 #define INTPTR_MIN        INT32_MIN
 128 #define INTPTR_MAX        INT32_MAX
 129 #endif
 130
 131 #if __WORDSIZE == 64
 132 #define UINTPTR_MAX       UINT64_MAX
 133 #else
 134 #define UINTPTR_MAX       UINT32_MAX
 135 #endif
 136
 137 /* 7.18.2.5 Limits of greatest-width integer types */
 138 #define INTMAX_MIN        INT64_MIN
 139 #define INTMAX_MAX        INT64_MAX
 140
 141 #define UINTMAX_MAX       UINT64_MAX
 142
 143 /* 7.18.3 "Other" */
 144 #if __WORDSIZE == 64
 145 #define PTRDIFF_MIN       INT64_MIN
 146 #define PTRDIFF_MAX       INT64_MAX
 147 #else
 148 #define PTRDIFF_MIN       INT32_MIN
 149 #define PTRDIFF_MAX       INT32_MAX
 150 #endif
 151
 152 /* We have no sig_atomic_t yet, so no SIG_ATOMIC_{MIN,MAX}.
 153    Should end up being {-127,127} or {0,255} ... or bigger.
 154    My bet would be on one of {U}INT32_{MIN,MAX}. */
 155
 156 #if __WORDSIZE == 64
 157 #define SIZE_MAX          UINT64_MAX
 158 #else
 159 #define SIZE_MAX          UINT32_MAX
 160 #endif
 161
 162 #if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1
 163 #define RSIZE_MAX         (SIZE_MAX >> 1)
 164 #endif
 165
 166 #ifndef WCHAR_MAX
 167 #  ifdef __WCHAR_MAX__
 168 #    define WCHAR_MAX     __WCHAR_MAX__
 169 #  else
 170 #    define WCHAR_MAX     0x7fffffff
 171 #  endif
 172 #endif
 173
 174 /* WCHAR_MIN should be 0 if wchar_t is an unsigned type and
 175    (-WCHAR_MAX-1) if wchar_t is a signed type.  Unfortunately,
 176    it turns out that -fshort-wchar changes the signedness of
 177    the type. */
 178 #ifndef WCHAR_MIN
 179 #  if WCHAR_MAX == 0xffff
 180 #    define WCHAR_MIN       0
 181 #  else
 182 #    define WCHAR_MIN       (-WCHAR_MAX-1)
 183 #  endif
 184 #endif
 185
 186 #define WINT_MIN          INT32_MIN
 187 #define WINT_MAX          INT32_MAX
 188
 189 #define SIG_ATOMIC_MIN    INT32_MIN
 190 #define SIG_ATOMIC_MAX    INT32_MAX
 191
 192 /* 7.18.4 Macros for integer constants */
 193 #define INT8_C(v)    (v)
 194 #define INT16_C(v)   (v)
 195 #define INT32_C(v)   (v)
 196 #define INT64_C(v)   (v ## LL)
 197
 198 #define UINT8_C(v)   (v ## U)
 199 #define UINT16_C(v)  (v ## U)
 200 #define UINT32_C(v)  (v ## U)
 201 #define UINT64_C(v)  (v ## ULL)
 202
 203 #ifdef __LP64__
 204 #define INTMAX_C(v)  (v ## L)
 205 #define UINTMAX_C(v) (v ## UL)
 206 #else
 207 #define INTMAX_C(v)  (v ## LL)
 208 #define UINTMAX_C(v) (v ## ULL)
 209 #endif
 210
 211 #endif /* _STDINT_H_ */