stdlib/stdint.h

   1 /* Copyright (C) 1997-2020 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, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 /*
  19  *      ISO C99: 7.18 Integer types <stdint.h>
  20  */
  21
  22 #ifndef _STDINT_H
  23 #define _STDINT_H       1
  24
  25 #define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
  26 #include <bits/libc-header-start.h>
  27 #include <bits/types.h>
  28 #include <bits/wchar.h>
  29 #include <bits/wordsize.h>
  30
  31 /* Exact integral types.  */
  32
  33 /* Signed.  */
  34 #include <bits/stdint-intn.h>
  35
  36 /* Unsigned.  */
  37 #include <bits/stdint-uintn.h>
  38
  39
  40 /* Small types.  */
  41
  42 /* Signed.  */
  43 typedef __int_least8_t int_least8_t;
  44 typedef __int_least16_t int_least16_t;
  45 typedef __int_least32_t int_least32_t;
  46 typedef __int_least64_t int_least64_t;
  47
  48 /* Unsigned.  */
  49 typedef __uint_least8_t uint_least8_t;
  50 typedef __uint_least16_t uint_least16_t;
  51 typedef __uint_least32_t uint_least32_t;
  52 typedef __uint_least64_t uint_least64_t;
  53
  54
  55 /* Fast types.  */
  56
  57 /* Signed.  */
  58 typedef signed char             int_fast8_t;
  59 #if __WORDSIZE == 64
  60 typedef long int                int_fast16_t;
  61 typedef long int                int_fast32_t;
  62 typedef long int                int_fast64_t;
  63 #else
  64 typedef int                     int_fast16_t;
  65 typedef int                     int_fast32_t;
  66 __extension__
  67 typedef long long int           int_fast64_t;
  68 #endif
  69
  70 /* Unsigned.  */
  71 typedef unsigned char           uint_fast8_t;
  72 #if __WORDSIZE == 64
  73 typedef unsigned long int       uint_fast16_t;
  74 typedef unsigned long int       uint_fast32_t;
  75 typedef unsigned long int       uint_fast64_t;
  76 #else
  77 typedef unsigned int            uint_fast16_t;
  78 typedef unsigned int            uint_fast32_t;
  79 __extension__
  80 typedef unsigned long long int  uint_fast64_t;
  81 #endif
  82
  83
  84 /* Types for `void *' pointers.  */
  85 #if __WORDSIZE == 64
  86 # ifndef __intptr_t_defined
  87 typedef long int                intptr_t;
  88 #  define __intptr_t_defined
  89 # endif
  90 typedef unsigned long int       uintptr_t;
  91 #else
  92 # ifndef __intptr_t_defined
  93 typedef int                     intptr_t;
  94 #  define __intptr_t_defined
  95 # endif
  96 typedef unsigned int            uintptr_t;
  97 #endif
  98
  99
 100 /* Largest integral types.  */
 101 typedef __intmax_t              intmax_t;
 102 typedef __uintmax_t             uintmax_t;
 103
 104
 105 # if __WORDSIZE == 64
 106 #  define __INT64_C(c)  c ## L
 107 #  define __UINT64_C(c) c ## UL
 108 # else
 109 #  define __INT64_C(c)  c ## LL
 110 #  define __UINT64_C(c) c ## ULL
 111 # endif
 112
 113 /* Limits of integral types.  */
 114
 115 /* Minimum of signed integral types.  */
 116 # define INT8_MIN               (-128)
 117 # define INT16_MIN              (-32767-1)
 118 # define INT32_MIN              (-2147483647-1)
 119 # define INT64_MIN              (-__INT64_C(9223372036854775807)-1)
 120 /* Maximum of signed integral types.  */
 121 # define INT8_MAX               (127)
 122 # define INT16_MAX              (32767)
 123 # define INT32_MAX              (2147483647)
 124 # define INT64_MAX              (__INT64_C(9223372036854775807))
 125
 126 /* Maximum of unsigned integral types.  */
 127 # define UINT8_MAX              (255)
 128 # define UINT16_MAX             (65535)
 129 # define UINT32_MAX             (4294967295U)
 130 # define UINT64_MAX             (__UINT64_C(18446744073709551615))
 131
 132
 133 /* Minimum of signed integral types having a minimum size.  */
 134 # define INT_LEAST8_MIN         (-128)
 135 # define INT_LEAST16_MIN        (-32767-1)
 136 # define INT_LEAST32_MIN        (-2147483647-1)
 137 # define INT_LEAST64_MIN        (-__INT64_C(9223372036854775807)-1)
 138 /* Maximum of signed integral types having a minimum size.  */
 139 # define INT_LEAST8_MAX         (127)
 140 # define INT_LEAST16_MAX        (32767)
 141 # define INT_LEAST32_MAX        (2147483647)
 142 # define INT_LEAST64_MAX        (__INT64_C(9223372036854775807))
 143
 144 /* Maximum of unsigned integral types having a minimum size.  */
 145 # define UINT_LEAST8_MAX        (255)
 146 # define UINT_LEAST16_MAX       (65535)
 147 # define UINT_LEAST32_MAX       (4294967295U)
 148 # define UINT_LEAST64_MAX       (__UINT64_C(18446744073709551615))
 149
 150
 151 /* Minimum of fast signed integral types having a minimum size.  */
 152 # define INT_FAST8_MIN          (-128)
 153 # if __WORDSIZE == 64
 154 #  define INT_FAST16_MIN        (-9223372036854775807L-1)
 155 #  define INT_FAST32_MIN        (-9223372036854775807L-1)
 156 # else
 157 #  define INT_FAST16_MIN        (-2147483647-1)
 158 #  define INT_FAST32_MIN        (-2147483647-1)
 159 # endif
 160 # define INT_FAST64_MIN         (-__INT64_C(9223372036854775807)-1)
 161 /* Maximum of fast signed integral types having a minimum size.  */
 162 # define INT_FAST8_MAX          (127)
 163 # if __WORDSIZE == 64
 164 #  define INT_FAST16_MAX        (9223372036854775807L)
 165 #  define INT_FAST32_MAX        (9223372036854775807L)
 166 # else
 167 #  define INT_FAST16_MAX        (2147483647)
 168 #  define INT_FAST32_MAX        (2147483647)
 169 # endif
 170 # define INT_FAST64_MAX         (__INT64_C(9223372036854775807))
 171
 172 /* Maximum of fast unsigned integral types having a minimum size.  */
 173 # define UINT_FAST8_MAX         (255)
 174 # if __WORDSIZE == 64
 175 #  define UINT_FAST16_MAX       (18446744073709551615UL)
 176 #  define UINT_FAST32_MAX       (18446744073709551615UL)
 177 # else
 178 #  define UINT_FAST16_MAX       (4294967295U)
 179 #  define UINT_FAST32_MAX       (4294967295U)
 180 # endif
 181 # define UINT_FAST64_MAX        (__UINT64_C(18446744073709551615))
 182
 183
 184 /* Values to test for integral types holding `void *' pointer.  */
 185 # if __WORDSIZE == 64
 186 #  define INTPTR_MIN            (-9223372036854775807L-1)
 187 #  define INTPTR_MAX            (9223372036854775807L)
 188 #  define UINTPTR_MAX           (18446744073709551615UL)
 189 # else
 190 #  define INTPTR_MIN            (-2147483647-1)
 191 #  define INTPTR_MAX            (2147483647)
 192 #  define UINTPTR_MAX           (4294967295U)
 193 # endif
 194
 195
 196 /* Minimum for largest signed integral type.  */
 197 # define INTMAX_MIN             (-__INT64_C(9223372036854775807)-1)
 198 /* Maximum for largest signed integral type.  */
 199 # define INTMAX_MAX             (__INT64_C(9223372036854775807))
 200
 201 /* Maximum for largest unsigned integral type.  */
 202 # define UINTMAX_MAX            (__UINT64_C(18446744073709551615))
 203
 204
 205 /* Limits of other integer types.  */
 206
 207 /* Limits of `ptrdiff_t' type.  */
 208 # if __WORDSIZE == 64
 209 #  define PTRDIFF_MIN           (-9223372036854775807L-1)
 210 #  define PTRDIFF_MAX           (9223372036854775807L)
 211 # else
 212 #  if __WORDSIZE32_PTRDIFF_LONG
 213 #   define PTRDIFF_MIN          (-2147483647L-1)
 214 #   define PTRDIFF_MAX          (2147483647L)
 215 #  else
 216 #   define PTRDIFF_MIN          (-2147483647-1)
 217 #   define PTRDIFF_MAX          (2147483647)
 218 #  endif
 219 # endif
 220
 221 /* Limits of `sig_atomic_t'.  */
 222 # define SIG_ATOMIC_MIN         (-2147483647-1)
 223 # define SIG_ATOMIC_MAX         (2147483647)
 224
 225 /* Limit of `size_t' type.  */
 226 # if __WORDSIZE == 64
 227 #  define SIZE_MAX              (18446744073709551615UL)
 228 # else
 229 #  if __WORDSIZE32_SIZE_ULONG
 230 #   define SIZE_MAX             (4294967295UL)
 231 #  else
 232 #   define SIZE_MAX             (4294967295U)
 233 #  endif
 234 # endif
 235
 236 /* Limits of `wchar_t'.  */
 237 # ifndef WCHAR_MIN
 238 /* These constants might also be defined in <wchar.h>.  */
 239 #  define WCHAR_MIN             __WCHAR_MIN
 240 #  define WCHAR_MAX             __WCHAR_MAX
 241 # endif
 242
 243 /* Limits of `wint_t'.  */
 244 # define WINT_MIN               (0u)
 245 # define WINT_MAX               (4294967295u)
 246
 247 /* Signed.  */
 248 # define INT8_C(c)      c
 249 # define INT16_C(c)     c
 250 # define INT32_C(c)     c
 251 # if __WORDSIZE == 64
 252 #  define INT64_C(c)    c ## L
 253 # else
 254 #  define INT64_C(c)    c ## LL
 255 # endif
 256
 257 /* Unsigned.  */
 258 # define UINT8_C(c)     c
 259 # define UINT16_C(c)    c
 260 # define UINT32_C(c)    c ## U
 261 # if __WORDSIZE == 64
 262 #  define UINT64_C(c)   c ## UL
 263 # else
 264 #  define UINT64_C(c)   c ## ULL
 265 # endif
 266
 267 /* Maximal type.  */
 268 # if __WORDSIZE == 64
 269 #  define INTMAX_C(c)   c ## L
 270 #  define UINTMAX_C(c)  c ## UL
 271 # else
 272 #  define INTMAX_C(c)   c ## LL
 273 #  define UINTMAX_C(c)  c ## ULL
 274 # endif
 275
 276 #if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
 277
 278 # define INT8_WIDTH 8
 279 # define UINT8_WIDTH 8
 280 # define INT16_WIDTH 16
 281 # define UINT16_WIDTH 16
 282 # define INT32_WIDTH 32
 283 # define UINT32_WIDTH 32
 284 # define INT64_WIDTH 64
 285 # define UINT64_WIDTH 64
 286
 287 # define INT_LEAST8_WIDTH 8
 288 # define UINT_LEAST8_WIDTH 8
 289 # define INT_LEAST16_WIDTH 16
 290 # define UINT_LEAST16_WIDTH 16
 291 # define INT_LEAST32_WIDTH 32
 292 # define UINT_LEAST32_WIDTH 32
 293 # define INT_LEAST64_WIDTH 64
 294 # define UINT_LEAST64_WIDTH 64
 295
 296 # define INT_FAST8_WIDTH 8
 297 # define UINT_FAST8_WIDTH 8
 298 # define INT_FAST16_WIDTH __WORDSIZE
 299 # define UINT_FAST16_WIDTH __WORDSIZE
 300 # define INT_FAST32_WIDTH __WORDSIZE
 301 # define UINT_FAST32_WIDTH __WORDSIZE
 302 # define INT_FAST64_WIDTH 64
 303 # define UINT_FAST64_WIDTH 64
 304
 305 # define INTPTR_WIDTH __WORDSIZE
 306 # define UINTPTR_WIDTH __WORDSIZE
 307
 308 # define INTMAX_WIDTH 64
 309 # define UINTMAX_WIDTH 64
 310
 311 # define PTRDIFF_WIDTH __WORDSIZE
 312 # define SIG_ATOMIC_WIDTH 32
 313 # define SIZE_WIDTH __WORDSIZE
 314 # define WCHAR_WIDTH 32
 315 # define WINT_WIDTH 32
 316
 317 #endif
 318
 319 #endif /* stdint.h */