boost/cstdint.hpp

   1 //  boost cstdint.hpp header file  ------------------------------------------//
   2
   3 //  (C) Copyright Beman Dawes 1999.
   4 //  (C) Copyright Jens Mauer 2001
   5 //  (C) Copyright John Maddock 2001
   6 //  Distributed under the Boost
   7 //  Software License, Version 1.0. (See accompanying file
   8 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9
  10 //  See http://www.boost.org/libs/integer for documentation.
  11
  12 //  Revision History
  13 //   31 Oct 01  use BOOST_HAS_LONG_LONG to check for "long long" (Jens M.)
  14 //   16 Apr 01  check LONGLONG_MAX when looking for "long long" (Jens Maurer)
  15 //   23 Jan 01  prefer "long" over "int" for int32_t and intmax_t (Jens Maurer)
  16 //   12 Nov 00  Merged <boost/stdint.h> (Jens Maurer)
  17 //   23 Sep 00  Added INTXX_C macro support (John Maddock).
  18 //   22 Sep 00  Better 64-bit support (John Maddock)
  19 //   29 Jun 00  Reimplement to avoid including stdint.h within namespace boost
  20 //    8 Aug 99  Initial version (Beman Dawes)
  21
  22
  23 #ifndef BOOST_CSTDINT_HPP
  24 #define BOOST_CSTDINT_HPP
  25
  26 #include <boost/config.hpp>
  27
  28
  29 #ifdef BOOST_HAS_STDINT_H
  30
  31 // The following #include is an implementation artifact; not part of interface.
  32 # ifdef __hpux
  33 // HP-UX has a vaguely nice <stdint.h> in a non-standard location
  34 #   include <inttypes.h>
  35 #   ifdef __STDC_32_MODE__
  36       // this is triggered with GCC, because it defines __cplusplus < 199707L
  37 #     define BOOST_NO_INT64_T
  38 #   endif
  39 # elif defined(__FreeBSD__) || defined(__IBMCPP__) || defined(_AIX)
  40 #   include <inttypes.h>
  41 # else
  42 #   include <stdint.h>
  43
  44 // There is a bug in Cygwin two _C macros
  45 #   if defined(__STDC_CONSTANT_MACROS) && defined(__CYGWIN__)
  46 #     undef INTMAX_C
  47 #     undef UINTMAX_C
  48 #     define INTMAX_C(c) c##LL
  49 #     define UINTMAX_C(c) c##ULL
  50 #   endif
  51
  52 # endif
  53
  54 #ifdef __QNX__
  55
  56 // QNX (Dinkumware stdlib) defines these as non-standard names.
  57 // Reflect to the standard names.
  58
  59 typedef ::intleast8_t int_least8_t;
  60 typedef ::intfast8_t int_fast8_t;
  61 typedef ::uintleast8_t uint_least8_t;
  62 typedef ::uintfast8_t uint_fast8_t;
  63
  64 typedef ::intleast16_t int_least16_t;
  65 typedef ::intfast16_t int_fast16_t;
  66 typedef ::uintleast16_t uint_least16_t;
  67 typedef ::uintfast16_t uint_fast16_t;
  68
  69 typedef ::intleast32_t int_least32_t;
  70 typedef ::intfast32_t int_fast32_t;
  71 typedef ::uintleast32_t uint_least32_t;
  72 typedef ::uintfast32_t uint_fast32_t;
  73
  74 # ifndef BOOST_NO_INT64_T
  75
  76 typedef ::intleast64_t int_least64_t;
  77 typedef ::intfast64_t int_fast64_t;
  78 typedef ::uintleast64_t uint_least64_t;
  79 typedef ::uintfast64_t uint_fast64_t;
  80
  81 # endif
  82
  83 #endif
  84
  85 namespace boost
  86 {
  87
  88   using ::int8_t;
  89   using ::int_least8_t;
  90   using ::int_fast8_t;
  91   using ::uint8_t;
  92   using ::uint_least8_t;
  93   using ::uint_fast8_t;
  94
  95   using ::int16_t;
  96   using ::int_least16_t;
  97   using ::int_fast16_t;
  98   using ::uint16_t;
  99   using ::uint_least16_t;
 100   using ::uint_fast16_t;
 101
 102   using ::int32_t;
 103   using ::int_least32_t;
 104   using ::int_fast32_t;
 105   using ::uint32_t;
 106   using ::uint_least32_t;
 107   using ::uint_fast32_t;
 108
 109 # ifndef BOOST_NO_INT64_T
 110
 111   using ::int64_t;
 112   using ::int_least64_t;
 113   using ::int_fast64_t;
 114   using ::uint64_t;
 115   using ::uint_least64_t;
 116   using ::uint_fast64_t;
 117
 118 # endif
 119
 120   using ::intmax_t;
 121   using ::uintmax_t;
 122
 123 } // namespace boost
 124
 125 #elif defined(__FreeBSD__) && (__FreeBSD__ <= 4) || defined(__osf__)
 126 // FreeBSD and Tru64 have an <inttypes.h> that contains much of what we need.
 127 # include <inttypes.h>
 128
 129 namespace boost {
 130
 131   using ::int8_t;
 132   typedef int8_t int_least8_t;
 133   typedef int8_t int_fast8_t;
 134   using ::uint8_t;
 135   typedef uint8_t uint_least8_t;
 136   typedef uint8_t uint_fast8_t;
 137
 138   using ::int16_t;
 139   typedef int16_t int_least16_t;
 140   typedef int16_t int_fast16_t;
 141   using ::uint16_t;
 142   typedef uint16_t uint_least16_t;
 143   typedef uint16_t uint_fast16_t;
 144
 145   using ::int32_t;
 146   typedef int32_t int_least32_t;
 147   typedef int32_t int_fast32_t;
 148   using ::uint32_t;
 149   typedef uint32_t uint_least32_t;
 150   typedef uint32_t uint_fast32_t;
 151
 152 # ifndef BOOST_NO_INT64_T
 153
 154   using ::int64_t;
 155   typedef int64_t int_least64_t;
 156   typedef int64_t int_fast64_t;
 157   using ::uint64_t;
 158   typedef uint64_t uint_least64_t;
 159   typedef uint64_t uint_fast64_t;
 160
 161   typedef int64_t intmax_t;
 162   typedef uint64_t uintmax_t;
 163
 164 # else
 165
 166   typedef int32_t intmax_t;
 167   typedef uint32_t uintmax_t;
 168
 169 # endif
 170
 171 } // namespace boost
 172
 173 #else  // BOOST_HAS_STDINT_H
 174
 175 # include <boost/limits.hpp> // implementation artifact; not part of interface
 176 # include <limits.h>         // needed for limits macros
 177
 178
 179 namespace boost
 180 {
 181
 182 //  These are fairly safe guesses for some 16-bit, and most 32-bit and 64-bit
 183 //  platforms.  For other systems, they will have to be hand tailored.
 184 //
 185 //  Because the fast types are assumed to be the same as the undecorated types,
 186 //  it may be possible to hand tailor a more efficient implementation.  Such
 187 //  an optimization may be illusionary; on the Intel x86-family 386 on, for
 188 //  example, byte arithmetic and load/stores are as fast as "int" sized ones.
 189
 190 //  8-bit types  ------------------------------------------------------------//
 191
 192 # if UCHAR_MAX == 0xff
 193      typedef signed char     int8_t;
 194      typedef signed char     int_least8_t;
 195      typedef signed char     int_fast8_t;
 196      typedef unsigned char   uint8_t;
 197      typedef unsigned char   uint_least8_t;
 198      typedef unsigned char   uint_fast8_t;
 199 # else
 200 #    error defaults not correct; you must hand modify boost/cstdint.hpp
 201 # endif
 202
 203 //  16-bit types  -----------------------------------------------------------//
 204
 205 # if USHRT_MAX == 0xffff
 206 #  if defined(__crayx1)
 207      // The Cray X1 has a 16-bit short, however it is not recommend
 208      // for use in performance critical code.
 209      typedef short           int16_t;
 210      typedef short           int_least16_t;
 211      typedef int             int_fast16_t;
 212      typedef unsigned short  uint16_t;
 213      typedef unsigned short  uint_least16_t;
 214      typedef unsigned int    uint_fast16_t;
 215 #  else
 216      typedef short           int16_t;
 217      typedef short           int_least16_t;
 218      typedef short           int_fast16_t;
 219      typedef unsigned short  uint16_t;
 220      typedef unsigned short  uint_least16_t;
 221      typedef unsigned short  uint_fast16_t;
 222 #  endif
 223 # elif (USHRT_MAX == 0xffffffff) && defined(CRAY)
 224      // no 16-bit types on Cray:
 225      typedef short           int_least16_t;
 226      typedef short           int_fast16_t;
 227      typedef unsigned short  uint_least16_t;
 228      typedef unsigned short  uint_fast16_t;
 229 # else
 230 #    error defaults not correct; you must hand modify boost/cstdint.hpp
 231 # endif
 232
 233 //  32-bit types  -----------------------------------------------------------//
 234
 235 # if ULONG_MAX == 0xffffffff
 236      typedef long            int32_t;
 237      typedef long            int_least32_t;
 238      typedef long            int_fast32_t;
 239      typedef unsigned long   uint32_t;
 240      typedef unsigned long   uint_least32_t;
 241      typedef unsigned long   uint_fast32_t;
 242 # elif UINT_MAX == 0xffffffff
 243      typedef int             int32_t;
 244      typedef int             int_least32_t;
 245      typedef int             int_fast32_t;
 246      typedef unsigned int    uint32_t;
 247      typedef unsigned int    uint_least32_t;
 248      typedef unsigned int    uint_fast32_t;
 249 # else
 250 #    error defaults not correct; you must hand modify boost/cstdint.hpp
 251 # endif
 252
 253 //  64-bit types + intmax_t and uintmax_t  ----------------------------------//
 254
 255 # if defined(BOOST_HAS_LONG_LONG) && \
 256    !defined(BOOST_MSVC) && !defined(__BORLANDC__) && \
 257    (!defined(__GLIBCPP__) || defined(_GLIBCPP_USE_LONG_LONG)) && \
 258    (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
 259 #    if defined(__hpux)
 260      // HP-UX's value of ULONG_LONG_MAX is unusable in preprocessor expressions
 261 #    elif (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615ULL) || (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615ULL) || (defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615ULL)
 262                                                                  // 2**64 - 1
 263 #    else
 264 #       error defaults not correct; you must hand modify boost/cstdint.hpp
 265 #    endif
 266
 267      typedef  ::boost::long_long_type            intmax_t;
 268      typedef  ::boost::ulong_long_type   uintmax_t;
 269      typedef  ::boost::long_long_type            int64_t;
 270      typedef  ::boost::long_long_type            int_least64_t;
 271      typedef  ::boost::long_long_type            int_fast64_t;
 272      typedef  ::boost::ulong_long_type   uint64_t;
 273      typedef  ::boost::ulong_long_type   uint_least64_t;
 274      typedef  ::boost::ulong_long_type   uint_fast64_t;
 275
 276 # elif ULONG_MAX != 0xffffffff
 277
 278 #    if ULONG_MAX == 18446744073709551615 // 2**64 - 1
 279      typedef long                 intmax_t;
 280      typedef unsigned long        uintmax_t;
 281      typedef long                 int64_t;
 282      typedef long                 int_least64_t;
 283      typedef long                 int_fast64_t;
 284      typedef unsigned long        uint64_t;
 285      typedef unsigned long        uint_least64_t;
 286      typedef unsigned long        uint_fast64_t;
 287 #    else
 288 #       error defaults not correct; you must hand modify boost/cstdint.hpp
 289 #    endif
 290 # elif defined(__GNUC__) && defined(BOOST_HAS_LONG_LONG)
 291      __extension__ typedef long long            intmax_t;
 292      __extension__ typedef unsigned long long   uintmax_t;
 293      __extension__ typedef long long            int64_t;
 294      __extension__ typedef long long            int_least64_t;
 295      __extension__ typedef long long            int_fast64_t;
 296      __extension__ typedef unsigned long long   uint64_t;
 297      __extension__ typedef unsigned long long   uint_least64_t;
 298      __extension__ typedef unsigned long long   uint_fast64_t;
 299 # elif defined(BOOST_HAS_MS_INT64)
 300      //
 301      // we have Borland/Intel/Microsoft __int64:
 302      //
 303      typedef __int64             intmax_t;
 304      typedef unsigned __int64    uintmax_t;
 305      typedef __int64             int64_t;
 306      typedef __int64             int_least64_t;
 307      typedef __int64             int_fast64_t;
 308      typedef unsigned __int64    uint64_t;
 309      typedef unsigned __int64    uint_least64_t;
 310      typedef unsigned __int64    uint_fast64_t;
 311 # else // assume no 64-bit integers
 312 #  define BOOST_NO_INT64_T
 313      typedef int32_t              intmax_t;
 314      typedef uint32_t             uintmax_t;
 315 # endif
 316
 317 } // namespace boost
 318
 319
 320 #endif // BOOST_HAS_STDINT_H
 321
 322 #endif // BOOST_CSTDINT_HPP
 323
 324
 325 /****************************************************
 326
 327 Macro definition section:
 328
 329 Define various INTXX_C macros only if
 330 __STDC_CONSTANT_MACROS is defined.
 331
 332 Undefine the macros if __STDC_CONSTANT_MACROS is
 333 not defined and the macros are (cf <cassert>).
 334
 335 Added 23rd September 2000 (John Maddock).
 336 Modified 11th September 2001 to be excluded when
 337 BOOST_HAS_STDINT_H is defined (John Maddock).
 338
 339 ******************************************************/
 340
 341 #if defined(__STDC_CONSTANT_MACROS) && !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(BOOST_HAS_STDINT_H)
 342 # define BOOST__STDC_CONSTANT_MACROS_DEFINED
 343 # if defined(BOOST_HAS_MS_INT64)
 344 //
 345 // Borland/Intel/Microsoft compilers have width specific suffixes:
 346 //
 347 #  define INT8_C(value)     value##i8
 348 #  define INT16_C(value)    value##i16
 349 #  define INT32_C(value)    value##i32
 350 #  define INT64_C(value)    value##i64
 351 #  ifdef __BORLANDC__
 352     // Borland bug: appending ui8 makes the type a signed char
 353 #   define UINT8_C(value)    static_cast<unsigned char>(value##u)
 354 #  else
 355 #   define UINT8_C(value)    value##ui8
 356 #  endif
 357 #  define UINT16_C(value)   value##ui16
 358 #  define UINT32_C(value)   value##ui32
 359 #  define UINT64_C(value)   value##ui64
 360 #  define INTMAX_C(value)   value##i64
 361 #  define UINTMAX_C(value)  value##ui64
 362
 363 # else
 364 //  do it the old fashioned way:
 365
 366 //  8-bit types  ------------------------------------------------------------//
 367
 368 #  if UCHAR_MAX == 0xff
 369 #   define INT8_C(value) static_cast<boost::int8_t>(value)
 370 #   define UINT8_C(value) static_cast<boost::uint8_t>(value##u)
 371 #  endif
 372
 373 //  16-bit types  -----------------------------------------------------------//
 374
 375 #  if USHRT_MAX == 0xffff
 376 #   define INT16_C(value) static_cast<boost::int16_t>(value)
 377 #   define UINT16_C(value) static_cast<boost::uint16_t>(value##u)
 378 #  endif
 379
 380 //  32-bit types  -----------------------------------------------------------//
 381
 382 #  if UINT_MAX == 0xffffffff
 383 #   define INT32_C(value) value
 384 #   define UINT32_C(value) value##u
 385 #  elif ULONG_MAX == 0xffffffff
 386 #   define INT32_C(value) value##L
 387 #   define UINT32_C(value) value##uL
 388 #  endif
 389
 390 //  64-bit types + intmax_t and uintmax_t  ----------------------------------//
 391
 392 #  if defined(BOOST_HAS_LONG_LONG) && \
 393     (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
 394
 395 #    if defined(__hpux)
 396      // HP-UX's value of ULONG_LONG_MAX is unusable in preprocessor expressions
 397 #    elif (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615U) ||  \
 398         (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615U) ||  \
 399         (defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615U)
 400
 401 #    else
 402 #       error defaults not correct; you must hand modify boost/cstdint.hpp
 403 #    endif
 404 #    define INT64_C(value) value##LL
 405 #    define UINT64_C(value) value##uLL
 406 #  elif ULONG_MAX != 0xffffffff
 407
 408 #    if ULONG_MAX == 18446744073709551615 // 2**64 - 1
 409 #       define INT64_C(value) value##L
 410 #       define UINT64_C(value) value##uL
 411 #    else
 412 #       error defaults not correct; you must hand modify boost/cstdint.hpp
 413 #    endif
 414 #  endif
 415
 416 #  ifdef BOOST_NO_INT64_T
 417 #   define INTMAX_C(value) INT32_C(value)
 418 #   define UINTMAX_C(value) UINT32_C(value)
 419 #  else
 420 #   define INTMAX_C(value) INT64_C(value)
 421 #   define UINTMAX_C(value) UINT64_C(value)
 422 #  endif
 423
 424 # endif // Borland/Microsoft specific width suffixes
 425
 426
 427 #elif defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(__STDC_CONSTANT_MACROS) && !defined(BOOST_HAS_STDINT_H)
 428 //
 429 // undef all the macros:
 430 //
 431 # undef INT8_C
 432 # undef INT16_C
 433 # undef INT32_C
 434 # undef INT64_C
 435 # undef UINT8_C
 436 # undef UINT16_C
 437 # undef UINT32_C
 438 # undef UINT64_C
 439 # undef INTMAX_C
 440 # undef UINTMAX_C
 441
 442 #endif // __STDC_CONSTANT_MACROS_DEFINED etc.
 443
 444
 445
 446