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      1 /*
      2  * Copyright (c) 2000, 2001, 2003, 2004, 2008 Apple Computer, 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_ */
    254