stdlib/stdint.h

   1 /* Copyright (C) 1997-2024 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 #include <bits/stdint-least.h>
  42
  43
  44 /* Fast types.  */
  45
  46 /* Signed.  */
  47 typedef signed char             int_fast8_t;
  48 #if __WORDSIZE == 64
  49 typedef long int                int_fast16_t;
  50 typedef long int                int_fast32_t;
  51 typedef long int                int_fast64_t;
  52 #else
  53 typedef int                     int_fast16_t;
  54 typedef int                     int_fast32_t;
  55 __extension__
  56 typedef long long int           int_fast64_t;
  57 #endif
  58
  59 /* Unsigned.  */
  60 typedef unsigned char           uint_fast8_t;
  61 #if __WORDSIZE == 64
  62 typedef unsigned long int       uint_fast16_t;
  63 typedef unsigned long int       uint_fast32_t;
  64 typedef unsigned long int       uint_fast64_t;
  65 #else
  66 typedef unsigned int            uint_fast16_t;
  67 typedef unsigned int            uint_fast32_t;
  68 __extension__
  69 typedef unsigned long long int  uint_fast64_t;
  70 #endif
  71
  72
  73 /* Types for `void *' pointers.  */
  74 #if __WORDSIZE == 64
  75 # ifndef __intptr_t_defined
  76 typedef long int                intptr_t;
  77 #  define __intptr_t_defined
  78 # endif
  79 typedef unsigned long int       uintptr_t;
  80 #else
  81 # ifndef __intptr_t_defined
  82 typedef int                     intptr_t;
  83 #  define __intptr_t_defined
  84 # endif
  85 typedef unsigned int            uintptr_t;
  86 #endif
  87
  88
  89 /* Largest integral types.  */
  90 typedef __intmax_t              intmax_t;
  91 typedef __uintmax_t             uintmax_t;
  92
  93
  94 # if __WORDSIZE == 64
  95 #  define __INT64_C(c)  c ## L
  96 #  define __UINT64_C(c) c ## UL
  97 # else
  98 #  define __INT64_C(c)  c ## LL
  99 #  define __UINT64_C(c) c ## ULL
 100 # endif
 101
 102 /* Limits of integral types.  */
 103
 104 /* Minimum of signed integral types.  */
 105 # define INT8_MIN               (-128)
 106 # define INT16_MIN              (-32767-1)
 107 # define INT32_MIN              (-2147483647-1)
 108 # define INT64_MIN              (-__INT64_C(9223372036854775807)-1)
 109 /* Maximum of signed integral types.  */
 110 # define INT8_MAX               (127)
 111 # define INT16_MAX              (32767)
 112 # define INT32_MAX              (2147483647)
 113 # define INT64_MAX              (__INT64_C(9223372036854775807))
 114
 115 /* Maximum of unsigned integral types.  */
 116 # define UINT8_MAX              (255)
 117 # define UINT16_MAX             (65535)
 118 # define UINT32_MAX             (4294967295U)
 119 # define UINT64_MAX             (__UINT64_C(18446744073709551615))
 120
 121
 122 /* Minimum of signed integral types having a minimum size.  */
 123 # define INT_LEAST8_MIN         (-128)
 124 # define INT_LEAST16_MIN        (-32767-1)
 125 # define INT_LEAST32_MIN        (-2147483647-1)
 126 # define INT_LEAST64_MIN        (-__INT64_C(9223372036854775807)-1)
 127 /* Maximum of signed integral types having a minimum size.  */
 128 # define INT_LEAST8_MAX         (127)
 129 # define INT_LEAST16_MAX        (32767)
 130 # define INT_LEAST32_MAX        (2147483647)
 131 # define INT_LEAST64_MAX        (__INT64_C(9223372036854775807))
 132
 133 /* Maximum of unsigned integral types having a minimum size.  */
 134 # define UINT_LEAST8_MAX        (255)
 135 # define UINT_LEAST16_MAX       (65535)
 136 # define UINT_LEAST32_MAX       (4294967295U)
 137 # define UINT_LEAST64_MAX       (__UINT64_C(18446744073709551615))
 138
 139
 140 /* Minimum of fast signed integral types having a minimum size.  */
 141 # define INT_FAST8_MIN          (-128)
 142 # if __WORDSIZE == 64
 143 #  define INT_FAST16_MIN        (-9223372036854775807L-1)
 144 #  define INT_FAST32_MIN        (-9223372036854775807L-1)
 145 # else
 146 #  define INT_FAST16_MIN        (-2147483647-1)
 147 #  define INT_FAST32_MIN        (-2147483647-1)
 148 # endif
 149 # define INT_FAST64_MIN         (-__INT64_C(9223372036854775807)-1)
 150 /* Maximum of fast signed integral types having a minimum size.  */
 151 # define INT_FAST8_MAX          (127)
 152 # if __WORDSIZE == 64
 153 #  define INT_FAST16_MAX        (9223372036854775807L)
 154 #  define INT_FAST32_MAX        (9223372036854775807L)
 155 # else
 156 #  define INT_FAST16_MAX        (2147483647)
 157 #  define INT_FAST32_MAX        (2147483647)
 158 # endif
 159 # define INT_FAST64_MAX         (__INT64_C(9223372036854775807))
 160
 161 /* Maximum of fast unsigned integral types having a minimum size.  */
 162 # define UINT_FAST8_MAX         (255)
 163 # if __WORDSIZE == 64
 164 #  define UINT_FAST16_MAX       (18446744073709551615UL)
 165 #  define UINT_FAST32_MAX       (18446744073709551615UL)
 166 # else
 167 #  define UINT_FAST16_MAX       (4294967295U)
 168 #  define UINT_FAST32_MAX       (4294967295U)
 169 # endif
 170 # define UINT_FAST64_MAX        (__UINT64_C(18446744073709551615))
 171
 172
 173 /* Values to test for integral types holding `void *' pointer.  */
 174 # if __WORDSIZE == 64
 175 #  define INTPTR_MIN            (-9223372036854775807L-1)
 176 #  define INTPTR_MAX            (9223372036854775807L)
 177 #  define UINTPTR_MAX           (18446744073709551615UL)
 178 # else
 179 #  define INTPTR_MIN            (-2147483647-1)
 180 #  define INTPTR_MAX            (2147483647)
 181 #  define UINTPTR_MAX           (4294967295U)
 182 # endif
 183
 184
 185 /* Minimum for largest signed integral type.  */
 186 # define INTMAX_MIN             (-__INT64_C(9223372036854775807)-1)
 187 /* Maximum for largest signed integral type.  */
 188 # define INTMAX_MAX             (__INT64_C(9223372036854775807))
 189
 190 /* Maximum for largest unsigned integral type.  */
 191 # define UINTMAX_MAX            (__UINT64_C(18446744073709551615))
 192
 193
 194 /* Limits of other integer types.  */
 195
 196 /* Limits of `ptrdiff_t' type.  */
 197 # if __WORDSIZE == 64
 198 #  define PTRDIFF_MIN           (-9223372036854775807L-1)
 199 #  define PTRDIFF_MAX           (9223372036854775807L)
 200 # else
 201 #  if __WORDSIZE32_PTRDIFF_LONG
 202 #   define PTRDIFF_MIN          (-2147483647L-1)
 203 #   define PTRDIFF_MAX          (2147483647L)
 204 #  else
 205 #   define PTRDIFF_MIN          (-2147483647-1)
 206 #   define PTRDIFF_MAX          (2147483647)
 207 #  endif
 208 # endif
 209
 210 /* Limits of `sig_atomic_t'.  */
 211 # define SIG_ATOMIC_MIN         (-2147483647-1)
 212 # define SIG_ATOMIC_MAX         (2147483647)
 213
 214 /* Limit of `size_t' type.  */
 215 # if __WORDSIZE == 64
 216 #  define SIZE_MAX              (18446744073709551615UL)
 217 # else
 218 #  if __WORDSIZE32_SIZE_ULONG
 219 #   define SIZE_MAX             (4294967295UL)
 220 #  else
 221 #   define SIZE_MAX             (4294967295U)
 222 #  endif
 223 # endif
 224
 225 /* Limits of `wchar_t'.  */
 226 # ifndef WCHAR_MIN
 227 /* These constants might also be defined in <wchar.h>.  */
 228 #  define WCHAR_MIN             __WCHAR_MIN
 229 #  define WCHAR_MAX             __WCHAR_MAX
 230 # endif
 231
 232 /* Limits of `wint_t'.  */
 233 # define WINT_MIN               (0u)
 234 # define WINT_MAX               (4294967295u)
 235
 236 /* Signed.  */
 237 # define INT8_C(c)      c
 238 # define INT16_C(c)     c
 239 # define INT32_C(c)     c
 240 # if __WORDSIZE == 64
 241 #  define INT64_C(c)    c ## L
 242 # else
 243 #  define INT64_C(c)    c ## LL
 244 # endif
 245
 246 /* Unsigned.  */
 247 # define UINT8_C(c)     c
 248 # define UINT16_C(c)    c
 249 # define UINT32_C(c)    c ## U
 250 # if __WORDSIZE == 64
 251 #  define UINT64_C(c)   c ## UL
 252 # else
 253 #  define UINT64_C(c)   c ## ULL
 254 # endif
 255
 256 /* Maximal type.  */
 257 # if __WORDSIZE == 64
 258 #  define INTMAX_C(c)   c ## L
 259 #  define UINTMAX_C(c)  c ## UL
 260 # else
 261 #  define INTMAX_C(c)   c ## LL
 262 #  define UINTMAX_C(c)  c ## ULL
 263 # endif
 264
 265 #if __GLIBC_USE (IEC_60559_BFP_EXT_C23)
 266
 267 # define INT8_WIDTH 8
 268 # define UINT8_WIDTH 8
 269 # define INT16_WIDTH 16
 270 # define UINT16_WIDTH 16
 271 # define INT32_WIDTH 32
 272 # define UINT32_WIDTH 32
 273 # define INT64_WIDTH 64
 274 # define UINT64_WIDTH 64
 275
 276 # define INT_LEAST8_WIDTH 8
 277 # define UINT_LEAST8_WIDTH 8
 278 # define INT_LEAST16_WIDTH 16
 279 # define UINT_LEAST16_WIDTH 16
 280 # define INT_LEAST32_WIDTH 32
 281 # define UINT_LEAST32_WIDTH 32
 282 # define INT_LEAST64_WIDTH 64
 283 # define UINT_LEAST64_WIDTH 64
 284
 285 # define INT_FAST8_WIDTH 8
 286 # define UINT_FAST8_WIDTH 8
 287 # define INT_FAST16_WIDTH __WORDSIZE
 288 # define UINT_FAST16_WIDTH __WORDSIZE
 289 # define INT_FAST32_WIDTH __WORDSIZE
 290 # define UINT_FAST32_WIDTH __WORDSIZE
 291 # define INT_FAST64_WIDTH 64
 292 # define UINT_FAST64_WIDTH 64
 293
 294 # define INTPTR_WIDTH __WORDSIZE
 295 # define UINTPTR_WIDTH __WORDSIZE
 296
 297 # define INTMAX_WIDTH 64
 298 # define UINTMAX_WIDTH 64
 299
 300 # define PTRDIFF_WIDTH __WORDSIZE
 301 # define SIG_ATOMIC_WIDTH 32
 302 # define SIZE_WIDTH __WORDSIZE
 303 # define WCHAR_WIDTH 32
 304 # define WINT_WIDTH 32
 305
 306 #endif
 307
 308 #endif /* stdint.h */