sysdeps/generic/stdint.h

   1 /* Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /*
  20  *      ISO C99: 7.18 Integer types <stdint.h>
  21  */
  22
  23 #ifndef _STDINT_H
  24 #define _STDINT_H       1
  25
  26 #include <features.h>
  27 #include <bits/wchar.h>
  28 #include <bits/wordsize.h>
  29
  30 /* Exact integral types.  */
  31
  32 /* Signed.  */
  33
  34 /* There is some amount of overlap with <sys/types.h> as known by inet code */
  35 #ifndef __int8_t_defined
  36 # define __int8_t_defined
  37 typedef signed char             int8_t;
  38 typedef short int               int16_t;
  39 typedef int                     int32_t;
  40 # if __WORDSIZE == 64
  41 typedef long int                int64_t;
  42 # else
  43 __extension__
  44 typedef long long int           int64_t;
  45 # endif
  46 #endif
  47
  48 /* Unsigned.  */
  49 typedef unsigned char           uint8_t;
  50 typedef unsigned short int      uint16_t;
  51 #ifndef __uint32_t_defined
  52 typedef unsigned int            uint32_t;
  53 # define __uint32_t_defined
  54 #endif
  55 #if __WORDSIZE == 64
  56 typedef unsigned long int       uint64_t;
  57 #else
  58 __extension__
  59 typedef unsigned long long int  uint64_t;
  60 #endif
  61
  62
  63 /* Small types.  */
  64
  65 /* Signed.  */
  66 typedef signed char             int_least8_t;
  67 typedef short int               int_least16_t;
  68 typedef int                     int_least32_t;
  69 #if __WORDSIZE == 64
  70 typedef long int                int_least64_t;
  71 #else
  72 __extension__
  73 typedef long long int           int_least64_t;
  74 #endif
  75
  76 /* Unsigned.  */
  77 typedef unsigned char           uint_least8_t;
  78 typedef unsigned short int      uint_least16_t;
  79 typedef unsigned int            uint_least32_t;
  80 #if __WORDSIZE == 64
  81 typedef unsigned long int       uint_least64_t;
  82 #else
  83 __extension__
  84 typedef unsigned long long int  uint_least64_t;
  85 #endif
  86
  87
  88 /* Fast types.  */
  89
  90 /* Signed.  */
  91 typedef signed char             int_fast8_t;
  92 #if __WORDSIZE == 64
  93 typedef long int                int_fast16_t;
  94 typedef long int                int_fast32_t;
  95 typedef long int                int_fast64_t;
  96 #else
  97 typedef int                     int_fast16_t;
  98 typedef int                     int_fast32_t;
  99 __extension__
 100 typedef long long int           int_fast64_t;
 101 #endif
 102
 103 /* Unsigned.  */
 104 typedef unsigned char           uint_fast8_t;
 105 #if __WORDSIZE == 64
 106 typedef unsigned long int       uint_fast16_t;
 107 typedef unsigned long int       uint_fast32_t;
 108 typedef unsigned long int       uint_fast64_t;
 109 #else
 110 typedef unsigned int            uint_fast16_t;
 111 typedef unsigned int            uint_fast32_t;
 112 __extension__
 113 typedef unsigned long long int  uint_fast64_t;
 114 #endif
 115
 116
 117 /* Types for `void *' pointers.  */
 118 #if __WORDSIZE == 64
 119 # ifndef __intptr_t_defined
 120 typedef long int                intptr_t;
 121 #  define __intptr_t_defined
 122 # endif
 123 typedef unsigned long int       uintptr_t;
 124 #else
 125 # ifndef __intptr_t_defined
 126 typedef int                     intptr_t;
 127 #  define __intptr_t_defined
 128 # endif
 129 typedef unsigned int            uintptr_t;
 130 #endif
 131
 132
 133 /* Largest integral types.  */
 134 #if __WORDSIZE == 64
 135 typedef long int                intmax_t;
 136 typedef unsigned long int       uintmax_t;
 137 #else
 138 __extension__
 139 typedef long long int           intmax_t;
 140 __extension__
 141 typedef unsigned long long int  uintmax_t;
 142 #endif
 143
 144
 145 /* The ISO C99 standard specifies that in C++ implementations these
 146    macros should only be defined if explicitly requested.  */
 147 #if !defined __cplusplus || defined __STDC_LIMIT_MACROS
 148
 149 # if __WORDSIZE == 64
 150 #  define __INT64_C(c)  c ## L
 151 #  define __UINT64_C(c) c ## UL
 152 # else
 153 #  define __INT64_C(c)  c ## LL
 154 #  define __UINT64_C(c) c ## ULL
 155 # endif
 156
 157 /* Limits of integral types.  */
 158
 159 /* Minimum of signed integral types.  */
 160 # define INT8_MIN               (-128)
 161 # define INT16_MIN              (-32767-1)
 162 # define INT32_MIN              (-2147483647-1)
 163 # define INT64_MIN              (-__INT64_C(9223372036854775807)-1)
 164 /* Maximum of signed integral types.  */
 165 # define INT8_MAX               (127)
 166 # define INT16_MAX              (32767)
 167 # define INT32_MAX              (2147483647)
 168 # define INT64_MAX              (__INT64_C(9223372036854775807))
 169
 170 /* Maximum of unsigned integral types.  */
 171 # define UINT8_MAX              (255)
 172 # define UINT16_MAX             (65535)
 173 # define UINT32_MAX             (4294967295U)
 174 # define UINT64_MAX             (__UINT64_C(18446744073709551615))
 175
 176
 177 /* Minimum of signed integral types having a minimum size.  */
 178 # define INT_LEAST8_MIN         (-128)
 179 # define INT_LEAST16_MIN        (-32767-1)
 180 # define INT_LEAST32_MIN        (-2147483647-1)
 181 # define INT_LEAST64_MIN        (-__INT64_C(9223372036854775807)-1)
 182 /* Maximum of signed integral types having a minimum size.  */
 183 # define INT_LEAST8_MAX         (127)
 184 # define INT_LEAST16_MAX        (32767)
 185 # define INT_LEAST32_MAX        (2147483647)
 186 # define INT_LEAST64_MAX        (__INT64_C(9223372036854775807))
 187
 188 /* Maximum of unsigned integral types having a minimum size.  */
 189 # define UINT_LEAST8_MAX        (255)
 190 # define UINT_LEAST16_MAX       (65535)
 191 # define UINT_LEAST32_MAX       (4294967295U)
 192 # define UINT_LEAST64_MAX       (__UINT64_C(18446744073709551615))
 193
 194
 195 /* Minimum of fast signed integral types having a minimum size.  */
 196 # define INT_FAST8_MIN          (-128)
 197 # if __WORDSIZE == 64
 198 #  define INT_FAST16_MIN        (-9223372036854775807L-1)
 199 #  define INT_FAST32_MIN        (-9223372036854775807L-1)
 200 # else
 201 #  define INT_FAST16_MIN        (-2147483647-1)
 202 #  define INT_FAST32_MIN        (-2147483647-1)
 203 # endif
 204 # define INT_FAST64_MIN         (-__INT64_C(9223372036854775807)-1)
 205 /* Maximum of fast signed integral types having a minimum size.  */
 206 # define INT_FAST8_MAX          (127)
 207 # if __WORDSIZE == 64
 208 #  define INT_FAST16_MAX        (9223372036854775807L)
 209 #  define INT_FAST32_MAX        (9223372036854775807L)
 210 # else
 211 #  define INT_FAST16_MAX        (2147483647)
 212 #  define INT_FAST32_MAX        (2147483647)
 213 # endif
 214 # define INT_FAST64_MAX         (__INT64_C(9223372036854775807))
 215
 216 /* Maximum of fast unsigned integral types having a minimum size.  */
 217 # define UINT_FAST8_MAX         (255)
 218 # if __WORDSIZE == 64
 219 #  define UINT_FAST16_MAX       (18446744073709551615UL)
 220 #  define UINT_FAST32_MAX       (18446744073709551615UL)
 221 # else
 222 #  define UINT_FAST16_MAX       (4294967295U)
 223 #  define UINT_FAST32_MAX       (4294967295U)
 224 # endif
 225 # define UINT_FAST64_MAX        (__UINT64_C(18446744073709551615))
 226
 227
 228 /* Values to test for integral types holding `void *' pointer.  */
 229 # if __WORDSIZE == 64
 230 #  define INTPTR_MIN            (-9223372036854775807L-1)
 231 #  define INTPTR_MAX            (9223372036854775807L)
 232 #  define UINTPTR_MAX           (18446744073709551615UL)
 233 # else
 234 #  define INTPTR_MIN            (-2147483647-1)
 235 #  define INTPTR_MAX            (2147483647)
 236 #  define UINTPTR_MAX           (4294967295U)
 237 # endif
 238
 239
 240 /* Minimum for largest signed integral type.  */
 241 # define INTMAX_MIN             (-__INT64_C(9223372036854775807)-1)
 242 /* Maximum for largest signed integral type.  */
 243 # define INTMAX_MAX             (__INT64_C(9223372036854775807))
 244
 245 /* Maximum for largest unsigned integral type.  */
 246 # define UINTMAX_MAX            (__UINT64_C(18446744073709551615))
 247
 248
 249 /* Limits of other integer types.  */
 250
 251 /* Limits of `ptrdiff_t' type.  */
 252 # if __WORDSIZE == 64
 253 #  define PTRDIFF_MIN           (-9223372036854775807L-1)
 254 #  define PTRDIFF_MAX           (9223372036854775807L)
 255 # else
 256 #  define PTRDIFF_MIN           (-2147483647-1)
 257 #  define PTRDIFF_MAX           (2147483647)
 258 # endif
 259
 260 /* Limits of `sig_atomic_t'.  */
 261 # define SIG_ATOMIC_MIN         (-2147483647-1)
 262 # define SIG_ATOMIC_MAX         (2147483647)
 263
 264 /* Limit of `size_t' type.  */
 265 # if __WORDSIZE == 64
 266 #  define SIZE_MAX              (18446744073709551615UL)
 267 # else
 268 #  define SIZE_MAX              (4294967295U)
 269 # endif
 270
 271 /* Limits of `wchar_t'.  */
 272 # ifndef WCHAR_MIN
 273 /* These constants might also be defined in <wchar.h>.  */
 274 #  define WCHAR_MIN             __WCHAR_MIN
 275 #  define WCHAR_MAX             __WCHAR_MAX
 276 # endif
 277
 278 /* Limits of `wint_t'.  */
 279 # define WINT_MIN               (0u)
 280 # define WINT_MAX               (4294967295u)
 281
 282 #endif  /* C++ && limit macros */
 283
 284
 285 /* The ISO C99 standard specifies that in C++ implementations these
 286    should only be defined if explicitly requested.  */
 287 #if !defined __cplusplus || defined __STDC_CONSTANT_MACROS
 288
 289 /* Signed.  */
 290 # define INT8_C(c)      c
 291 # define INT16_C(c)     c
 292 # define INT32_C(c)     c
 293 # if __WORDSIZE == 64
 294 #  define INT64_C(c)    c ## L
 295 # else
 296 #  define INT64_C(c)    c ## LL
 297 # endif
 298
 299 /* Unsigned.  */
 300 # define UINT8_C(c)     c ## U
 301 # define UINT16_C(c)    c ## U
 302 # define UINT32_C(c)    c ## U
 303 # if __WORDSIZE == 64
 304 #  define UINT64_C(c)   c ## UL
 305 # else
 306 #  define UINT64_C(c)   c ## ULL
 307 # endif
 308
 309 /* Maximal type.  */
 310 # if __WORDSIZE == 64
 311 #  define INTMAX_C(c)   c ## L
 312 #  define UINTMAX_C(c)  c ## UL
 313 # else
 314 #  define INTMAX_C(c)   c ## LL
 315 #  define UINTMAX_C(c)  c ## ULL
 316 # endif
 317
 318 #endif  /* C++ && constant macros */
 319
 320 #endif /* stdint.h */