gdb/gnulib/stdint.in.h

   1 /* Copyright (C) 2001-2002, 2004-2007, 2009 Free Software Foundation, Inc.
   2    Written by Paul Eggert, Bruno Haible, Sam Steingold, Peter Burwood.
   3    This file is part of gnulib.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 /*
  20  * ISO C 99 <stdint.h> for platforms that lack it.
  21  * <http://www.opengroup.org/susv3xbd/stdint.h.html>
  22  */
  23
  24 #ifndef _GL_STDINT_H
  25
  26 /* When including a system file that in turn includes <inttypes.h>,
  27    use the system <inttypes.h>, not our substitute.  This avoids
  28    problems with (for example) VMS, whose <sys/bitypes.h> includes
  29    <inttypes.h>.  */
  30 #define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
  31
  32 /* Get those types that are already defined in other system include
  33    files, so that we can "#define int8_t signed char" below without
  34    worrying about a later system include file containing a "typedef
  35    signed char int8_t;" that will get messed up by our macro.  Our
  36    macros should all be consistent with the system versions, except
  37    for the "fast" types and macros, which we recommend against using
  38    in public interfaces due to compiler differences.  */
  39
  40 #if @HAVE_STDINT_H@
  41 # if defined __sgi && ! defined __c99
  42    /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
  43       with "This header file is to be used only for c99 mode compilations"
  44       diagnostics.  */
  45 #  define __STDINT_H__
  46 # endif
  47   /* Other systems may have an incomplete or buggy <stdint.h>.
  48      Include it before <inttypes.h>, since any "#include <stdint.h>"
  49      in <inttypes.h> would reinclude us, skipping our contents because
  50      _GL_STDINT_H is defined.
  51      The include_next requires a split double-inclusion guard.  */
  52 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
  53 #endif
  54
  55 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
  56 #define _GL_STDINT_H
  57
  58 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
  59    IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
  60    AIX 5.2 <sys/types.h> isn't needed and causes troubles.
  61    MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
  62    relies on the system <stdint.h> definitions, so include
  63    <sys/types.h> after @NEXT_STDINT_H@.  */
  64 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
  65 # include <sys/types.h>
  66 #endif
  67
  68 /* Get LONG_MIN, LONG_MAX, ULONG_MAX.  */
  69 #include <limits.h>
  70
  71 #if @HAVE_INTTYPES_H@
  72   /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
  73      int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
  74      <inttypes.h> also defines intptr_t and uintptr_t.  */
  75 # include <inttypes.h>
  76 #elif @HAVE_SYS_INTTYPES_H@
  77   /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
  78      the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX.  */
  79 # include <sys/inttypes.h>
  80 #endif
  81
  82 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
  83   /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
  84      int{8,16,32,64}_t and __BIT_TYPES_DEFINED__.  In libc5 >= 5.2.2 it is
  85      included by <sys/types.h>.  */
  86 # include <sys/bitypes.h>
  87 #endif
  88
  89 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
  90
  91 /* Get WCHAR_MIN, WCHAR_MAX.  */
  92 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
  93 #  include <wchar.h>
  94 # endif
  95
  96 #endif
  97
  98 #undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
  99
 100 /* Minimum and maximum values for a integer type under the usual assumption.
 101    Return an unspecified value if BITS == 0, adding a check to pacify
 102    picky compilers.  */
 103
 104 #define _STDINT_MIN(signed, bits, zero) \
 105   ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
 106
 107 #define _STDINT_MAX(signed, bits, zero) \
 108   ((signed) \
 109    ? ~ _STDINT_MIN (signed, bits, zero) \
 110    : /* The expression for the unsigned case.  The subtraction of (signed) \
 111         is a nop in the unsigned case and avoids "signed integer overflow" \
 112         warnings in the signed case.  */ \
 113      ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
 114
 115 /* 7.18.1.1. Exact-width integer types */
 116
 117 /* Here we assume a standard architecture where the hardware integer
 118    types have 8, 16, 32, optionally 64 bits.  */
 119
 120 #undef int8_t
 121 #undef uint8_t
 122 #define int8_t signed char
 123 #define uint8_t unsigned char
 124
 125 #undef int16_t
 126 #undef uint16_t
 127 #define int16_t short int
 128 #define uint16_t unsigned short int
 129
 130 #undef int32_t
 131 #undef uint32_t
 132 #define int32_t int
 133 #define uint32_t unsigned int
 134
 135 /* Do not undefine int64_t if gnulib is not being used with 64-bit
 136    types, since otherwise it breaks platforms like Tandem/NSK.  */
 137 #if LONG_MAX >> 31 >> 31 == 1
 138 # undef int64_t
 139 # define int64_t long int
 140 # define GL_INT64_T
 141 #elif defined _MSC_VER
 142 # undef int64_t
 143 # define int64_t __int64
 144 # define GL_INT64_T
 145 #elif @HAVE_LONG_LONG_INT@
 146 # undef int64_t
 147 # define int64_t long long int
 148 # define GL_INT64_T
 149 #endif
 150
 151 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
 152 # undef uint64_t
 153 # define uint64_t unsigned long int
 154 # define GL_UINT64_T
 155 #elif defined _MSC_VER
 156 # undef uint64_t
 157 # define uint64_t unsigned __int64
 158 # define GL_UINT64_T
 159 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
 160 # undef uint64_t
 161 # define uint64_t unsigned long long int
 162 # define GL_UINT64_T
 163 #endif
 164
 165 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc.  */
 166 #define _UINT8_T
 167 #define _UINT32_T
 168 #define _UINT64_T
 169
 170
 171 /* 7.18.1.2. Minimum-width integer types */
 172
 173 /* Here we assume a standard architecture where the hardware integer
 174    types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
 175    are the same as the corresponding N_t types.  */
 176
 177 #undef int_least8_t
 178 #undef uint_least8_t
 179 #undef int_least16_t
 180 #undef uint_least16_t
 181 #undef int_least32_t
 182 #undef uint_least32_t
 183 #undef int_least64_t
 184 #undef uint_least64_t
 185 #define int_least8_t int8_t
 186 #define uint_least8_t uint8_t
 187 #define int_least16_t int16_t
 188 #define uint_least16_t uint16_t
 189 #define int_least32_t int32_t
 190 #define uint_least32_t uint32_t
 191 #ifdef GL_INT64_T
 192 # define int_least64_t int64_t
 193 #endif
 194 #ifdef GL_UINT64_T
 195 # define uint_least64_t uint64_t
 196 #endif
 197
 198 /* 7.18.1.3. Fastest minimum-width integer types */
 199
 200 /* Note: Other <stdint.h> substitutes may define these types differently.
 201    It is not recommended to use these types in public header files. */
 202
 203 /* Here we assume a standard architecture where the hardware integer
 204    types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
 205    are taken from the same list of types.  Assume that 'long int'
 206    is fast enough for all narrower integers.  */
 207
 208 #undef int_fast8_t
 209 #undef uint_fast8_t
 210 #undef int_fast16_t
 211 #undef uint_fast16_t
 212 #undef int_fast32_t
 213 #undef uint_fast32_t
 214 #undef int_fast64_t
 215 #undef uint_fast64_t
 216 #define int_fast8_t long int
 217 #define uint_fast8_t unsigned int_fast8_t
 218 #define int_fast16_t long int
 219 #define uint_fast16_t unsigned int_fast16_t
 220 #define int_fast32_t long int
 221 #define uint_fast32_t unsigned int_fast32_t
 222 #ifdef GL_INT64_T
 223 # define int_fast64_t int64_t
 224 #endif
 225 #ifdef GL_UINT64_T
 226 # define uint_fast64_t uint64_t
 227 #endif
 228
 229 /* 7.18.1.4. Integer types capable of holding object pointers */
 230
 231 #undef intptr_t
 232 #undef uintptr_t
 233 #define intptr_t long int
 234 #define uintptr_t unsigned long int
 235
 236 /* 7.18.1.5. Greatest-width integer types */
 237
 238 /* Note: These types are compiler dependent. It may be unwise to use them in
 239    public header files. */
 240
 241 #undef intmax_t
 242 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
 243 # define intmax_t long long int
 244 #elif defined GL_INT64_T
 245 # define intmax_t int64_t
 246 #else
 247 # define intmax_t long int
 248 #endif
 249
 250 #undef uintmax_t
 251 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
 252 # define uintmax_t unsigned long long int
 253 #elif defined GL_UINT64_T
 254 # define uintmax_t uint64_t
 255 #else
 256 # define uintmax_t unsigned long int
 257 #endif
 258
 259 /* Verify that intmax_t and uintmax_t have the same size.  Too much code
 260    breaks if this is not the case.  If this check fails, the reason is likely
 261    to be found in the autoconf macros.  */
 262 typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
 263
 264 /* 7.18.2. Limits of specified-width integer types */
 265
 266 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
 267
 268 /* 7.18.2.1. Limits of exact-width integer types */
 269
 270 /* Here we assume a standard architecture where the hardware integer
 271    types have 8, 16, 32, optionally 64 bits.  */
 272
 273 #undef INT8_MIN
 274 #undef INT8_MAX
 275 #undef UINT8_MAX
 276 #define INT8_MIN  (~ INT8_MAX)
 277 #define INT8_MAX  127
 278 #define UINT8_MAX  255
 279
 280 #undef INT16_MIN
 281 #undef INT16_MAX
 282 #undef UINT16_MAX
 283 #define INT16_MIN  (~ INT16_MAX)
 284 #define INT16_MAX  32767
 285 #define UINT16_MAX  65535
 286
 287 #undef INT32_MIN
 288 #undef INT32_MAX
 289 #undef UINT32_MAX
 290 #define INT32_MIN  (~ INT32_MAX)
 291 #define INT32_MAX  2147483647
 292 #define UINT32_MAX  4294967295U
 293
 294 #undef INT64_MIN
 295 #undef INT64_MAX
 296 #ifdef GL_INT64_T
 297 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
 298    evaluates the latter incorrectly in preprocessor expressions.  */
 299 # define INT64_MIN  (- INTMAX_C (1) << 63)
 300 # define INT64_MAX  INTMAX_C (9223372036854775807)
 301 #endif
 302
 303 #undef UINT64_MAX
 304 #ifdef GL_UINT64_T
 305 # define UINT64_MAX  UINTMAX_C (18446744073709551615)
 306 #endif
 307
 308 /* 7.18.2.2. Limits of minimum-width integer types */
 309
 310 /* Here we assume a standard architecture where the hardware integer
 311    types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
 312    are the same as the corresponding N_t types.  */
 313
 314 #undef INT_LEAST8_MIN
 315 #undef INT_LEAST8_MAX
 316 #undef UINT_LEAST8_MAX
 317 #define INT_LEAST8_MIN  INT8_MIN
 318 #define INT_LEAST8_MAX  INT8_MAX
 319 #define UINT_LEAST8_MAX  UINT8_MAX
 320
 321 #undef INT_LEAST16_MIN
 322 #undef INT_LEAST16_MAX
 323 #undef UINT_LEAST16_MAX
 324 #define INT_LEAST16_MIN  INT16_MIN
 325 #define INT_LEAST16_MAX  INT16_MAX
 326 #define UINT_LEAST16_MAX  UINT16_MAX
 327
 328 #undef INT_LEAST32_MIN
 329 #undef INT_LEAST32_MAX
 330 #undef UINT_LEAST32_MAX
 331 #define INT_LEAST32_MIN  INT32_MIN
 332 #define INT_LEAST32_MAX  INT32_MAX
 333 #define UINT_LEAST32_MAX  UINT32_MAX
 334
 335 #undef INT_LEAST64_MIN
 336 #undef INT_LEAST64_MAX
 337 #ifdef GL_INT64_T
 338 # define INT_LEAST64_MIN  INT64_MIN
 339 # define INT_LEAST64_MAX  INT64_MAX
 340 #endif
 341
 342 #undef UINT_LEAST64_MAX
 343 #ifdef GL_UINT64_T
 344 # define UINT_LEAST64_MAX  UINT64_MAX
 345 #endif
 346
 347 /* 7.18.2.3. Limits of fastest minimum-width integer types */
 348
 349 /* Here we assume a standard architecture where the hardware integer
 350    types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
 351    are taken from the same list of types.  */
 352
 353 #undef INT_FAST8_MIN
 354 #undef INT_FAST8_MAX
 355 #undef UINT_FAST8_MAX
 356 #define INT_FAST8_MIN  LONG_MIN
 357 #define INT_FAST8_MAX  LONG_MAX
 358 #define UINT_FAST8_MAX  ULONG_MAX
 359
 360 #undef INT_FAST16_MIN
 361 #undef INT_FAST16_MAX
 362 #undef UINT_FAST16_MAX
 363 #define INT_FAST16_MIN  LONG_MIN
 364 #define INT_FAST16_MAX  LONG_MAX
 365 #define UINT_FAST16_MAX  ULONG_MAX
 366
 367 #undef INT_FAST32_MIN
 368 #undef INT_FAST32_MAX
 369 #undef UINT_FAST32_MAX
 370 #define INT_FAST32_MIN  LONG_MIN
 371 #define INT_FAST32_MAX  LONG_MAX
 372 #define UINT_FAST32_MAX  ULONG_MAX
 373
 374 #undef INT_FAST64_MIN
 375 #undef INT_FAST64_MAX
 376 #ifdef GL_INT64_T
 377 # define INT_FAST64_MIN  INT64_MIN
 378 # define INT_FAST64_MAX  INT64_MAX
 379 #endif
 380
 381 #undef UINT_FAST64_MAX
 382 #ifdef GL_UINT64_T
 383 # define UINT_FAST64_MAX  UINT64_MAX
 384 #endif
 385
 386 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
 387
 388 #undef INTPTR_MIN
 389 #undef INTPTR_MAX
 390 #undef UINTPTR_MAX
 391 #define INTPTR_MIN  LONG_MIN
 392 #define INTPTR_MAX  LONG_MAX
 393 #define UINTPTR_MAX  ULONG_MAX
 394
 395 /* 7.18.2.5. Limits of greatest-width integer types */
 396
 397 #undef INTMAX_MIN
 398 #undef INTMAX_MAX
 399 #ifdef INT64_MAX
 400 # define INTMAX_MIN  INT64_MIN
 401 # define INTMAX_MAX  INT64_MAX
 402 #else
 403 # define INTMAX_MIN  INT32_MIN
 404 # define INTMAX_MAX  INT32_MAX
 405 #endif
 406
 407 #undef UINTMAX_MAX
 408 #ifdef UINT64_MAX
 409 # define UINTMAX_MAX  UINT64_MAX
 410 #else
 411 # define UINTMAX_MAX  UINT32_MAX
 412 #endif
 413
 414 /* 7.18.3. Limits of other integer types */
 415
 416 /* ptrdiff_t limits */
 417 #undef PTRDIFF_MIN
 418 #undef PTRDIFF_MAX
 419 #define PTRDIFF_MIN  \
 420    _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
 421 #define PTRDIFF_MAX  \
 422    _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
 423
 424 /* sig_atomic_t limits */
 425 #undef SIG_ATOMIC_MIN
 426 #undef SIG_ATOMIC_MAX
 427 #define SIG_ATOMIC_MIN  \
 428    _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
 429                 0@SIG_ATOMIC_T_SUFFIX@)
 430 #define SIG_ATOMIC_MAX  \
 431    _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
 432                 0@SIG_ATOMIC_T_SUFFIX@)
 433
 434
 435 /* size_t limit */
 436 #undef SIZE_MAX
 437 #define SIZE_MAX  _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
 438
 439 /* wchar_t limits */
 440 #undef WCHAR_MIN
 441 #undef WCHAR_MAX
 442 #define WCHAR_MIN  \
 443    _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
 444 #define WCHAR_MAX  \
 445    _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
 446
 447 /* wint_t limits */
 448 #undef WINT_MIN
 449 #undef WINT_MAX
 450 #define WINT_MIN  \
 451    _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
 452 #define WINT_MAX  \
 453    _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
 454
 455 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
 456
 457 /* 7.18.4. Macros for integer constants */
 458
 459 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
 460
 461 /* 7.18.4.1. Macros for minimum-width integer constants */
 462 /* According to ISO C 99 Technical Corrigendum 1 */
 463
 464 /* Here we assume a standard architecture where the hardware integer
 465    types have 8, 16, 32, optionally 64 bits, and int is 32 bits.  */
 466
 467 #undef INT8_C
 468 #undef UINT8_C
 469 #define INT8_C(x) x
 470 #define UINT8_C(x) x
 471
 472 #undef INT16_C
 473 #undef UINT16_C
 474 #define INT16_C(x) x
 475 #define UINT16_C(x) x
 476
 477 #undef INT32_C
 478 #undef UINT32_C
 479 #define INT32_C(x) x
 480 #define UINT32_C(x) x ## U
 481
 482 #undef INT64_C
 483 #undef UINT64_C
 484 #if LONG_MAX >> 31 >> 31 == 1
 485 # define INT64_C(x) x##L
 486 #elif defined _MSC_VER
 487 # define INT64_C(x) x##i64
 488 #elif @HAVE_LONG_LONG_INT@
 489 # define INT64_C(x) x##LL
 490 #endif
 491 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
 492 # define UINT64_C(x) x##UL
 493 #elif defined _MSC_VER
 494 # define UINT64_C(x) x##ui64
 495 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
 496 # define UINT64_C(x) x##ULL
 497 #endif
 498
 499 /* 7.18.4.2. Macros for greatest-width integer constants */
 500
 501 #undef INTMAX_C
 502 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
 503 # define INTMAX_C(x)   x##LL
 504 #elif defined GL_INT64_T
 505 # define INTMAX_C(x)   INT64_C(x)
 506 #else
 507 # define INTMAX_C(x)   x##L
 508 #endif
 509
 510 #undef UINTMAX_C
 511 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
 512 # define UINTMAX_C(x)  x##ULL
 513 #elif defined GL_UINT64_T
 514 # define UINTMAX_C(x)  UINT64_C(x)
 515 #else
 516 # define UINTMAX_C(x)  x##UL
 517 #endif
 518
 519 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
 520
 521 #endif /* _GL_STDINT_H */
 522 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */