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 #ifndef _INT8_T
  19 #define _INT8_T
  20 typedef signed char           int8_t;
  21 #endif /*_INT8_T */
  22
  23 #ifndef _INT16_T
  24 #define _INT16_T
  25 typedef short                int16_t;
  26 #endif /* _INT16_T */
  27
  28 #ifndef _INT32_T
  29 #define _INT32_T
  30 typedef int                  int32_t;
  31 #endif /* _INT32_T */
  32
  33 #ifndef _INT64_T
  34 #define _INT64_T
  35 typedef long long            int64_t;
  36 #endif /* _INT64_T */
  37
  38 #ifndef _UINT8_T
  39 #define _UINT8_T
  40 typedef unsigned char         uint8_t;
  41 #endif /*_UINT8_T */
  42
  43 #ifndef _UINT16_T
  44 #define _UINT16_T
  45 typedef unsigned short       uint16_t;
  46 #endif /* _UINT16_T */
  47
  48 #ifndef _UINT32_T
  49 #define _UINT32_T
  50 typedef unsigned int         uint32_t;
  51 #endif /* _UINT32_T */
  52
  53 #ifndef _UINT64_T
  54 #define _UINT64_T
  55 typedef unsigned long long   uint64_t;
  56 #endif /* _UINT64_T */
  57
  58 /* 7.18.1.2 Minimum-width integer types */
  59 typedef int8_t           int_least8_t;
  60 typedef int16_t         int_least16_t;
  61 typedef int32_t         int_least32_t;
  62 typedef int64_t         int_least64_t;
  63 typedef uint8_t         uint_least8_t;
  64 typedef uint16_t       uint_least16_t;
  65 typedef uint32_t       uint_least32_t;
  66 typedef uint64_t       uint_least64_t;
  67
  68
  69 /* 7.18.1.3 Fastest-width integer types */
  70 typedef int8_t            int_fast8_t;
  71 typedef int16_t          int_fast16_t;
  72 typedef int32_t          int_fast32_t;
  73 typedef int64_t          int_fast64_t;
  74 typedef uint8_t          uint_fast8_t;
  75 typedef uint16_t        uint_fast16_t;
  76 typedef uint32_t        uint_fast32_t;
  77 typedef uint64_t        uint_fast64_t;
  78
  79
  80 /* 7.18.1.4 Integer types capable of holding object pointers */
  81
  82 #ifndef _INTPTR_T
  83 #define _INTPTR_T
  84 typedef long   intptr_t;
  85 #endif /* _INTPTR_T */
  86
  87 #ifndef _UINTPTR_T
  88 #define _UINTPTR_T
  89 typedef unsigned long   uintptr_t;
  90 #endif /* _UINTPTR_T */
  91
  92
  93 /* 7.18.1.5 Greatest-width integer types */
  94 #ifndef _INTMAX_T
  95 #define _INTMAX_T
  96 #ifdef __INTMAX_TYPE__
  97 typedef __INTMAX_TYPE__             intmax_t;
  98 #else /* __INTMAX_TYPE__ */
  99 typedef long long                intmax_t;
 100 #endif /* __INTMAX_TYPE__ */
 101 #endif /* _INTMAX_T */
 102
 103 #ifndef _UINTMAX_T
 104 #define _UINTMAX_T
 105 #ifdef __UINTMAX_TYPE__
 106 typedef __UINTMAX_TYPE__             uintmax_t;
 107 #else /* __UINTMAX_TYPE__ */
 108 typedef unsigned long long      uintmax_t;
 109 #endif /* __UINTMAX_TYPE__ */
 110 #endif /* _UINTMAX_T */
 111
 112 /* 7.18.2 Limits of specified-width integer types:
 113  *   These #defines specify the minimum and maximum limits
 114  *   of each of the types declared above.
 115  */
 116
 117
 118 /* 7.18.2.1 Limits of exact-width integer types */
 119 #define INT8_MAX         127
 120 #define INT16_MAX        32767
 121 #define INT32_MAX        2147483647
 122 #define INT64_MAX        9223372036854775807LL
 123
 124 #define INT8_MIN          -128
 125 #define INT16_MIN         -32768
 126    /*
 127       Note:  the literal "most negative int" cannot be written in C --
 128       the rules in the standard (section 6.4.4.1 in C99) will give it
 129       an unsigned type, so INT32_MIN (and the most negative member of
 130       any larger signed type) must be written via a constant expression.
 131    */
 132 #define INT32_MIN        (-INT32_MAX-1)
 133 #define INT64_MIN        (-INT64_MAX-1)
 134
 135 #define UINT8_MAX         255
 136 #define UINT16_MAX        65535
 137 #define UINT32_MAX        4294967295U
 138 #define UINT64_MAX        18446744073709551615ULL
 139
 140 /* 7.18.2.2 Limits of minimum-width integer types */
 141 #define INT_LEAST8_MIN    INT8_MIN
 142 #define INT_LEAST16_MIN   INT16_MIN
 143 #define INT_LEAST32_MIN   INT32_MIN
 144 #define INT_LEAST64_MIN   INT64_MIN
 145
 146 #define INT_LEAST8_MAX    INT8_MAX
 147 #define INT_LEAST16_MAX   INT16_MAX
 148 #define INT_LEAST32_MAX   INT32_MAX
 149 #define INT_LEAST64_MAX   INT64_MAX
 150
 151 #define UINT_LEAST8_MAX   UINT8_MAX
 152 #define UINT_LEAST16_MAX  UINT16_MAX
 153 #define UINT_LEAST32_MAX  UINT32_MAX
 154 #define UINT_LEAST64_MAX  UINT64_MAX
 155
 156 /* 7.18.2.3 Limits of fastest minimum-width integer types */
 157 #define INT_FAST8_MIN     INT8_MIN
 158 #define INT_FAST16_MIN    INT16_MIN
 159 #define INT_FAST32_MIN    INT32_MIN
 160 #define INT_FAST64_MIN    INT64_MIN
 161
 162 #define INT_FAST8_MAX     INT8_MAX
 163 #define INT_FAST16_MAX    INT16_MAX
 164 #define INT_FAST32_MAX    INT32_MAX
 165 #define INT_FAST64_MAX    INT64_MAX
 166
 167 #define UINT_FAST8_MAX    UINT8_MAX
 168 #define UINT_FAST16_MAX   UINT16_MAX
 169 #define UINT_FAST32_MAX   UINT32_MAX
 170 #define UINT_FAST64_MAX   UINT64_MAX
 171
 172 /* 7.18.2.4 Limits of integer types capable of holding object pointers */
 173
 174 #if __WORDSIZE == 64
 175 #define INTPTR_MIN        INT64_MIN
 176 #define INTPTR_MAX        INT64_MAX
 177 #else
 178 #define INTPTR_MIN        INT32_MIN
 179 #define INTPTR_MAX        INT32_MAX
 180 #endif
 181
 182 #if __WORDSIZE == 64
 183 #define UINTPTR_MAX       UINT64_MAX
 184 #else
 185 #define UINTPTR_MAX       UINT32_MAX
 186 #endif
 187
 188 /* 7.18.2.5 Limits of greatest-width integer types */
 189 #define INTMAX_MIN        INT64_MIN
 190 #define INTMAX_MAX        INT64_MAX
 191
 192 #define UINTMAX_MAX       UINT64_MAX
 193
 194 /* 7.18.3 "Other" */
 195 #if __WORDSIZE == 64
 196 #define PTRDIFF_MIN       INT64_MIN
 197 #define PTRDIFF_MAX       INT64_MAX
 198 #else
 199 #define PTRDIFF_MIN       INT32_MIN
 200 #define PTRDIFF_MAX       INT32_MAX
 201 #endif
 202
 203 /* We have no sig_atomic_t yet, so no SIG_ATOMIC_{MIN,MAX}.
 204    Should end up being {-127,127} or {0,255} ... or bigger.
 205    My bet would be on one of {U}INT32_{MIN,MAX}. */
 206
 207 #if __WORDSIZE == 64
 208 #define SIZE_MAX          UINT64_MAX
 209 #else
 210 #define SIZE_MAX          UINT32_MAX
 211 #endif
 212
 213 #ifndef WCHAR_MAX
 214 #  ifdef __WCHAR_MAX__
 215 #    define WCHAR_MAX     __WCHAR_MAX__
 216 #  else
 217 #    define WCHAR_MAX     0x7fffffff
 218 #  endif
 219 #endif
 220
 221 /* WCHAR_MIN should be 0 if wchar_t is an unsigned type and
 222    (-WCHAR_MAX-1) if wchar_t is a signed type.  Unfortunately,
 223    it turns out that -fshort-wchar changes the signedness of
 224    the type. */
 225 #ifndef WCHAR_MIN
 226 #  if WCHAR_MAX == 0xffff
 227 #    define WCHAR_MIN       0
 228 #  else
 229 #    define WCHAR_MIN       (-WCHAR_MAX-1)
 230 #  endif
 231 #endif
 232
 233 #define WINT_MIN          INT32_MIN
 234 #define WINT_MAX          INT32_MAX
 235
 236 #define SIG_ATOMIC_MIN    INT32_MIN
 237 #define SIG_ATOMIC_MAX    INT32_MAX
 238
 239 /* 7.18.4 Macros for integer constants */
 240 #define INT8_C(v)    (v)
 241 #define INT16_C(v)   (v)
 242 #define INT32_C(v)   (v)
 243 #define INT64_C(v)   (v ## LL)
 244
 245 #define UINT8_C(v)   (v ## U)
 246 #define UINT16_C(v)  (v ## U)
 247 #define UINT32_C(v)  (v ## U)
 248 #define UINT64_C(v)  (v ## ULL)
 249
 250 #define INTMAX_C(v)  (v ## LL)
 251 #define UINTMAX_C(v) (v ## ULL)
 252
 253 #endif /* _STDINT_H_ */