boost/config/suffix.hpp

   1 //  Boost config.hpp configuration header file  ------------------------------//
   2
   3 //  Copyright (c) 2001-2003 John Maddock
   4 //  Copyright (c) 2001 Darin Adler
   5 //  Copyright (c) 2001 Peter Dimov
   6 //  Copyright (c) 2002 Bill Kempf
   7 //  Copyright (c) 2002 Jens Maurer
   8 //  Copyright (c) 2002-2003 David Abrahams
   9 //  Copyright (c) 2003 Gennaro Prota
  10 //  Copyright (c) 2003 Eric Friedman
  11 //
  12 // Distributed under the Boost Software License, Version 1.0. (See
  13 // accompanying file LICENSE_1_0.txt or copy at
  14 // http://www.boost.org/LICENSE_1_0.txt)
  15
  16 //  See http://www.boost.org/ for most recent version.
  17
  18 //  Boost config.hpp policy and rationale documentation has been moved to
  19 //  http://www.boost.org/libs/config/
  20 //
  21 //  This file is intended to be stable, and relatively unchanging.
  22 //  It should contain boilerplate code only - no compiler specific
  23 //  code unless it is unavoidable - no changes unless unavoidable.
  24
  25 #ifndef BOOST_CONFIG_SUFFIX_HPP
  26 #define BOOST_CONFIG_SUFFIX_HPP
  27
  28 //
  29 // look for long long by looking for the appropriate macros in <limits.h>.
  30 // Note that we use limits.h rather than climits for maximal portability,
  31 // remember that since these just declare a bunch of macros, there should be
  32 // no namespace issues from this.
  33 //
  34 #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG)                                              \
  35    && !defined(BOOST_MSVC) && !defined(__BORLANDC__)
  36 # include <limits.h>
  37 # if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
  38 #   define BOOST_HAS_LONG_LONG
  39 # else
  40 #   define BOOST_NO_LONG_LONG
  41 # endif
  42 #endif
  43
  44 // GCC 3.x will clean up all of those nasty macro definitions that
  45 // BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine
  46 // it under GCC 3.x.
  47 #if defined(__GNUC__) && (__GNUC__ >= 3) && defined(BOOST_NO_CTYPE_FUNCTIONS)
  48 #  undef BOOST_NO_CTYPE_FUNCTIONS
  49 #endif
  50
  51 //
  52 // Assume any extensions are in namespace std:: unless stated otherwise:
  53 //
  54 #  ifndef BOOST_STD_EXTENSION_NAMESPACE
  55 #    define BOOST_STD_EXTENSION_NAMESPACE std
  56 #  endif
  57
  58 //
  59 // If cv-qualified specializations are not allowed, then neither are cv-void ones:
  60 //
  61 #  if defined(BOOST_NO_CV_SPECIALIZATIONS) \
  62       && !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
  63 #     define BOOST_NO_CV_VOID_SPECIALIZATIONS
  64 #  endif
  65
  66 //
  67 // If there is no numeric_limits template, then it can't have any compile time
  68 // constants either!
  69 //
  70 #  if defined(BOOST_NO_LIMITS) \
  71       && !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS)
  72 #     define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
  73 #     define BOOST_NO_MS_INT64_NUMERIC_LIMITS
  74 #     define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
  75 #  endif
  76
  77 //
  78 // if there is no long long then there is no specialisation
  79 // for numeric_limits<long long> either:
  80 //
  81 #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)
  82 #  define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
  83 #endif
  84
  85 //
  86 // if there is no __int64 then there is no specialisation
  87 // for numeric_limits<__int64> either:
  88 //
  89 #if !defined(BOOST_HAS_MS_INT64) && !defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS)
  90 #  define BOOST_NO_MS_INT64_NUMERIC_LIMITS
  91 #endif
  92
  93 //
  94 // if member templates are supported then so is the
  95 // VC6 subset of member templates:
  96 //
  97 #  if !defined(BOOST_NO_MEMBER_TEMPLATES) \
  98        && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
  99 #     define BOOST_MSVC6_MEMBER_TEMPLATES
 100 #  endif
 101
 102 //
 103 // Without partial specialization, can't test for partial specialisation bugs:
 104 //
 105 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
 106       && !defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG)
 107 #     define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
 108 #  endif
 109
 110 //
 111 // Without partial specialization, we can't have array-type partial specialisations:
 112 //
 113 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
 114       && !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
 115 #     define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS
 116 #  endif
 117
 118 //
 119 // Without partial specialization, std::iterator_traits can't work:
 120 //
 121 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
 122       && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
 123 #     define BOOST_NO_STD_ITERATOR_TRAITS
 124 #  endif
 125
 126 //
 127 // Without partial specialization, partial
 128 // specialization with default args won't work either:
 129 //
 130 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
 131       && !defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
 132 #     define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
 133 #  endif
 134
 135 //
 136 // Without member template support, we can't have template constructors
 137 // in the standard library either:
 138 //
 139 #  if defined(BOOST_NO_MEMBER_TEMPLATES) \
 140       && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
 141       && !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
 142 #     define BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS
 143 #  endif
 144
 145 //
 146 // Without member template support, we can't have a conforming
 147 // std::allocator template either:
 148 //
 149 #  if defined(BOOST_NO_MEMBER_TEMPLATES) \
 150       && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
 151       && !defined(BOOST_NO_STD_ALLOCATOR)
 152 #     define BOOST_NO_STD_ALLOCATOR
 153 #  endif
 154
 155 //
 156 // without ADL support then using declarations will break ADL as well:
 157 //
 158 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
 159 #  define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
 160 #endif
 161
 162 //
 163 // Without typeid support we have no dynamic RTTI either:
 164 //
 165 #if defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI)
 166 #  define BOOST_NO_RTTI
 167 #endif
 168
 169 //
 170 // If we have a standard allocator, then we have a partial one as well:
 171 //
 172 #if !defined(BOOST_NO_STD_ALLOCATOR)
 173 #  define BOOST_HAS_PARTIAL_STD_ALLOCATOR
 174 #endif
 175
 176 //
 177 // We can't have a working std::use_facet if there is no std::locale:
 178 //
 179 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_USE_FACET)
 180 #     define BOOST_NO_STD_USE_FACET
 181 #  endif
 182
 183 //
 184 // We can't have a std::messages facet if there is no std::locale:
 185 //
 186 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_MESSAGES)
 187 #     define BOOST_NO_STD_MESSAGES
 188 #  endif
 189
 190 //
 191 // We can't have a working std::wstreambuf if there is no std::locale:
 192 //
 193 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF)
 194 #     define BOOST_NO_STD_WSTREAMBUF
 195 #  endif
 196
 197 //
 198 // We can't have a <cwctype> if there is no <cwchar>:
 199 //
 200 #  if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_CWCTYPE)
 201 #     define BOOST_NO_CWCTYPE
 202 #  endif
 203
 204 //
 205 // We can't have a swprintf if there is no <cwchar>:
 206 //
 207 #  if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_SWPRINTF)
 208 #     define BOOST_NO_SWPRINTF
 209 #  endif
 210
 211 //
 212 // If Win32 support is turned off, then we must turn off
 213 // threading support also, unless there is some other
 214 // thread API enabled:
 215 //
 216 #if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \
 217    && !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS)
 218 #  define BOOST_DISABLE_THREADS
 219 #endif
 220
 221 //
 222 // Turn on threading support if the compiler thinks that it's in
 223 // multithreaded mode.  We put this here because there are only a
 224 // limited number of macros that identify this (if there's any missing
 225 // from here then add to the appropriate compiler section):
 226 //
 227 #if (defined(__MT__) || defined(_MT) || defined(_REENTRANT) \
 228     || defined(_PTHREADS) || defined(__APPLE__) || defined(__DragonFly__)) \
 229     && !defined(BOOST_HAS_THREADS)
 230 #  define BOOST_HAS_THREADS
 231 #endif
 232
 233 //
 234 // Turn threading support off if BOOST_DISABLE_THREADS is defined:
 235 //
 236 #if defined(BOOST_DISABLE_THREADS) && defined(BOOST_HAS_THREADS)
 237 #  undef BOOST_HAS_THREADS
 238 #endif
 239
 240 //
 241 // Turn threading support off if we don't recognise the threading API:
 242 //
 243 #if defined(BOOST_HAS_THREADS) && !defined(BOOST_HAS_PTHREADS)\
 244       && !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_BETHREADS)\
 245       && !defined(BOOST_HAS_MPTASKS)
 246 #  undef BOOST_HAS_THREADS
 247 #endif
 248
 249 //
 250 // Turn threading detail macros off if we don't (want to) use threading
 251 //
 252 #ifndef BOOST_HAS_THREADS
 253 #  undef BOOST_HAS_PTHREADS
 254 #  undef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
 255 #  undef BOOST_HAS_PTHREAD_YIELD
 256 #  undef BOOST_HAS_PTHREAD_DELAY_NP
 257 #  undef BOOST_HAS_WINTHREADS
 258 #  undef BOOST_HAS_BETHREADS
 259 #  undef BOOST_HAS_MPTASKS
 260 #endif
 261
 262 //
 263 // If the compiler claims to be C99 conformant, then it had better
 264 // have a <stdint.h>:
 265 //
 266 #  if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
 267 #     define BOOST_HAS_STDINT_H
 268 #     ifndef BOOST_HAS_LOG1P
 269 #        define BOOST_HAS_LOG1P
 270 #     endif
 271 #     ifndef BOOST_HAS_EXPM1
 272 #        define BOOST_HAS_EXPM1
 273 #     endif
 274 #  endif
 275
 276 //
 277 // Define BOOST_NO_SLIST and BOOST_NO_HASH if required.
 278 // Note that this is for backwards compatibility only.
 279 //
 280 #  if !defined(BOOST_HAS_SLIST) && !defined(BOOST_NO_SLIST)
 281 #     define BOOST_NO_SLIST
 282 #  endif
 283
 284 #  if !defined(BOOST_HAS_HASH) && !defined(BOOST_NO_HASH)
 285 #     define BOOST_NO_HASH
 286 #  endif
 287
 288 //
 289 // Set BOOST_SLIST_HEADER if not set already:
 290 //
 291 #if defined(BOOST_HAS_SLIST) && !defined(BOOST_SLIST_HEADER)
 292 #  define BOOST_SLIST_HEADER <slist>
 293 #endif
 294
 295 //
 296 // Set BOOST_HASH_SET_HEADER if not set already:
 297 //
 298 #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_SET_HEADER)
 299 #  define BOOST_HASH_SET_HEADER <hash_set>
 300 #endif
 301
 302 //
 303 // Set BOOST_HASH_MAP_HEADER if not set already:
 304 //
 305 #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_MAP_HEADER)
 306 #  define BOOST_HASH_MAP_HEADER <hash_map>
 307 #endif
 308
 309 //  BOOST_HAS_ABI_HEADERS
 310 //  This macro gets set if we have headers that fix the ABI,
 311 //  and prevent ODR violations when linking to external libraries:
 312 #if defined(BOOST_ABI_PREFIX) && defined(BOOST_ABI_SUFFIX) && !defined(BOOST_HAS_ABI_HEADERS)
 313 #  define BOOST_HAS_ABI_HEADERS
 314 #endif
 315
 316 #if defined(BOOST_HAS_ABI_HEADERS) && defined(BOOST_DISABLE_ABI_HEADERS)
 317 #  undef BOOST_HAS_ABI_HEADERS
 318 #endif
 319
 320 //  BOOST_NO_STDC_NAMESPACE workaround  --------------------------------------//
 321 //  Because std::size_t usage is so common, even in boost headers which do not
 322 //  otherwise use the C library, the <cstddef> workaround is included here so
 323 //  that ugly workaround code need not appear in many other boost headers.
 324 //  NOTE WELL: This is a workaround for non-conforming compilers; <cstddef>
 325 //  must still be #included in the usual places so that <cstddef> inclusion
 326 //  works as expected with standard conforming compilers.  The resulting
 327 //  double inclusion of <cstddef> is harmless.
 328
 329 # ifdef BOOST_NO_STDC_NAMESPACE
 330 #   include <cstddef>
 331     namespace std { using ::ptrdiff_t; using ::size_t; }
 332 # endif
 333
 334 //  Workaround for the unfortunate min/max macros defined by some platform headers
 335
 336 #define BOOST_PREVENT_MACRO_SUBSTITUTION
 337
 338 #ifndef BOOST_USING_STD_MIN
 339 #  define BOOST_USING_STD_MIN() using std::min
 340 #endif
 341
 342 #ifndef BOOST_USING_STD_MAX
 343 #  define BOOST_USING_STD_MAX() using std::max
 344 #endif
 345
 346 //  BOOST_NO_STD_MIN_MAX workaround  -----------------------------------------//
 347
 348 #  ifdef BOOST_NO_STD_MIN_MAX
 349
 350 namespace std {
 351   template <class _Tp>
 352   inline const _Tp& min BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
 353     return __b < __a ? __b : __a;
 354   }
 355   template <class _Tp>
 356   inline const _Tp& max BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
 357     return  __a < __b ? __b : __a;
 358   }
 359 }
 360
 361 #  endif
 362
 363 // BOOST_STATIC_CONSTANT workaround --------------------------------------- //
 364 // On compilers which don't allow in-class initialization of static integral
 365 // constant members, we must use enums as a workaround if we want the constants
 366 // to be available at compile-time. This macro gives us a convenient way to
 367 // declare such constants.
 368
 369 #  ifdef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
 370 #       define BOOST_STATIC_CONSTANT(type, assignment) enum { assignment }
 371 #  else
 372 #     define BOOST_STATIC_CONSTANT(type, assignment) static const type assignment
 373 #  endif
 374
 375 // BOOST_USE_FACET / HAS_FACET workaround ----------------------------------//
 376 // When the standard library does not have a conforming std::use_facet there
 377 // are various workarounds available, but they differ from library to library.
 378 // The same problem occurs with has_facet.
 379 // These macros provide a consistent way to access a locale's facets.
 380 // Usage:
 381 //    replace
 382 //       std::use_facet<Type>(loc);
 383 //    with
 384 //       BOOST_USE_FACET(Type, loc);
 385 //    Note do not add a std:: prefix to the front of BOOST_USE_FACET!
 386 //  Use for BOOST_HAS_FACET is analogous.
 387
 388 #if defined(BOOST_NO_STD_USE_FACET)
 389 #  ifdef BOOST_HAS_TWO_ARG_USE_FACET
 390 #     define BOOST_USE_FACET(Type, loc) std::use_facet(loc, static_cast<Type*>(0))
 391 #     define BOOST_HAS_FACET(Type, loc) std::has_facet(loc, static_cast<Type*>(0))
 392 #  elif defined(BOOST_HAS_MACRO_USE_FACET)
 393 #     define BOOST_USE_FACET(Type, loc) std::_USE(loc, Type)
 394 #     define BOOST_HAS_FACET(Type, loc) std::_HAS(loc, Type)
 395 #  elif defined(BOOST_HAS_STLP_USE_FACET)
 396 #     define BOOST_USE_FACET(Type, loc) (*std::_Use_facet<Type >(loc))
 397 #     define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
 398 #  endif
 399 #else
 400 #  define BOOST_USE_FACET(Type, loc) std::use_facet< Type >(loc)
 401 #  define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
 402 #endif
 403
 404 // BOOST_NESTED_TEMPLATE workaround ------------------------------------------//
 405 // Member templates are supported by some compilers even though they can't use
 406 // the A::template member<U> syntax, as a workaround replace:
 407 //
 408 // typedef typename A::template rebind<U> binder;
 409 //
 410 // with:
 411 //
 412 // typedef typename A::BOOST_NESTED_TEMPLATE rebind<U> binder;
 413
 414 #ifndef BOOST_NO_MEMBER_TEMPLATE_KEYWORD
 415 #  define BOOST_NESTED_TEMPLATE template
 416 #else
 417 #  define BOOST_NESTED_TEMPLATE
 418 #endif
 419
 420 // BOOST_UNREACHABLE_RETURN(x) workaround -------------------------------------//
 421 // Normally evaluates to nothing, unless BOOST_NO_UNREACHABLE_RETURN_DETECTION
 422 // is defined, in which case it evaluates to return x; Use when you have a return
 423 // statement that can never be reached.
 424
 425 #ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION
 426 #  define BOOST_UNREACHABLE_RETURN(x) return x;
 427 #else
 428 #  define BOOST_UNREACHABLE_RETURN(x)
 429 #endif
 430
 431 // BOOST_DEDUCED_TYPENAME workaround ------------------------------------------//
 432 //
 433 // Some compilers don't support the use of `typename' for dependent
 434 // types in deduced contexts, e.g.
 435 //
 436 //     template <class T> void f(T, typename T::type);
 437 //                                  ^^^^^^^^
 438 // Replace these declarations with:
 439 //
 440 //     template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type);
 441
 442 #ifndef BOOST_NO_DEDUCED_TYPENAME
 443 #  define BOOST_DEDUCED_TYPENAME typename
 444 #else
 445 #  define BOOST_DEDUCED_TYPENAME
 446 #endif
 447
 448 #ifndef BOOST_NO_TYPENAME_WITH_CTOR
 449 #  define BOOST_CTOR_TYPENAME typename
 450 #else
 451 #  define BOOST_CTOR_TYPENAME
 452 #endif
 453
 454 // long long workaround ------------------------------------------//
 455 // On gcc (and maybe other compilers?) long long is alway supported
 456 // but it's use may generate either warnings (with -ansi), or errors
 457 // (with -pedantic -ansi) unless it's use is prefixed by __extension__
 458 //
 459 #if defined(BOOST_HAS_LONG_LONG)
 460 namespace boost{
 461 #  ifdef __GNUC__
 462    __extension__ typedef long long long_long_type;
 463    __extension__ typedef unsigned long long ulong_long_type;
 464 #  else
 465    typedef long long long_long_type;
 466    typedef unsigned long long ulong_long_type;
 467 #  endif
 468 }
 469 #endif
 470
 471 // BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------//
 472 //
 473 // Some compilers have problems with function templates whose template
 474 // parameters don't appear in the function parameter list (basically
 475 // they just link one instantiation of the template in the final
 476 // executable). These macros provide a uniform way to cope with the
 477 // problem with no effects on the calling syntax.
 478
 479 // Example:
 480 //
 481 //  #include <iostream>
 482 //  #include <ostream>
 483 //  #include <typeinfo>
 484 //
 485 //  template <int n>
 486 //  void f() { std::cout << n << ' '; }
 487 //
 488 //  template <typename T>
 489 //  void g() { std::cout << typeid(T).name() << ' '; }
 490 //
 491 //  int main() {
 492 //    f<1>();
 493 //    f<2>();
 494 //
 495 //    g<int>();
 496 //    g<double>();
 497 //  }
 498 //
 499 // With VC++ 6.0 the output is:
 500 //
 501 //   2 2 double double
 502 //
 503 // To fix it, write
 504 //
 505 //   template <int n>
 506 //   void f(BOOST_EXPLICIT_TEMPLATE_NON_TYPE(int, n)) { ... }
 507 //
 508 //   template <typename T>
 509 //   void g(BOOST_EXPLICIT_TEMPLATE_TYPE(T)) { ... }
 510 //
 511
 512
 513 #if defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS
 514
 515 #  include "boost/type.hpp"
 516 #  include "boost/non_type.hpp"
 517
 518 #  define BOOST_EXPLICIT_TEMPLATE_TYPE(t)              boost::type<t>* = 0
 519 #  define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)         boost::type<t>*
 520 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)       boost::non_type<t, v>* = 0
 521 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)  boost::non_type<t, v>*
 522
 523 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)        \
 524              , BOOST_EXPLICIT_TEMPLATE_TYPE(t)
 525 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)   \
 526              , BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 527 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) \
 528              , BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 529 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)    \
 530              , BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 531
 532 #else
 533
 534 // no workaround needed: expand to nothing
 535
 536 #  define BOOST_EXPLICIT_TEMPLATE_TYPE(t)
 537 #  define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 538 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 539 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 540
 541 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
 542 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 543 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 544 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 545
 546
 547 #endif // defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS
 548
 549
 550 // ---------------------------------------------------------------------------//
 551
 552 //
 553 // Helper macro BOOST_STRINGIZE:
 554 // Converts the parameter X to a string after macro replacement
 555 // on X has been performed.
 556 //
 557 #define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X)
 558 #define BOOST_DO_STRINGIZE(X) #X
 559
 560 //
 561 // Helper macro BOOST_JOIN:
 562 // The following piece of macro magic joins the two
 563 // arguments together, even when one of the arguments is
 564 // itself a macro (see 16.3.1 in C++ standard).  The key
 565 // is that macro expansion of macro arguments does not
 566 // occur in BOOST_DO_JOIN2 but does in BOOST_DO_JOIN.
 567 //
 568 #define BOOST_JOIN( X, Y ) BOOST_DO_JOIN( X, Y )
 569 #define BOOST_DO_JOIN( X, Y ) BOOST_DO_JOIN2(X,Y)
 570 #define BOOST_DO_JOIN2( X, Y ) X##Y
 571
 572 //
 573 // Set some default values for compiler/library/platform names.
 574 // These are for debugging config setup only:
 575 //
 576 #  ifndef BOOST_COMPILER
 577 #     define BOOST_COMPILER "Unknown ISO C++ Compiler"
 578 #  endif
 579 #  ifndef BOOST_STDLIB
 580 #     define BOOST_STDLIB "Unknown ISO standard library"
 581 #  endif
 582 #  ifndef BOOST_PLATFORM
 583 #     if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \
 584          || defined(_POSIX_SOURCE)
 585 #        define BOOST_PLATFORM "Generic Unix"
 586 #     else
 587 #        define BOOST_PLATFORM "Unknown"
 588 #     endif
 589 #  endif
 590
 591 #endif
 592
 593