1 //  Boost config.hpp configuration header file  ------------------------------//
2 //  boostinspect:ndprecated_macros -- tell the inspect tool to ignore this file
3 
4 //  Copyright (c) 2001-2003 John Maddock
5 //  Copyright (c) 2001 Darin Adler
6 //  Copyright (c) 2001 Peter Dimov
7 //  Copyright (c) 2002 Bill Kempf
8 //  Copyright (c) 2002 Jens Maurer
9 //  Copyright (c) 2002-2003 David Abrahams
10 //  Copyright (c) 2003 Gennaro Prota
11 //  Copyright (c) 2003 Eric Friedman
12 //  Copyright (c) 2010 Eric Jourdanneau, Joel Falcou
13 // Distributed under the Boost Software License, Version 1.0. (See
14 // accompanying file LICENSE_1_0.txt or copy at
15 // http://www.boost.org/LICENSE_1_0.txt)
16 
17 //  See http://www.boost.org/ for most recent version.
18 
19 //  Boost config.hpp policy and rationale documentation has been moved to
20 //  http://www.boost.org/libs/config/
21 //
22 //  This file is intended to be stable, and relatively unchanging.
23 //  It should contain boilerplate code only - no compiler specific
24 //  code unless it is unavoidable - no changes unless unavoidable.
25 
26 #ifndef BOOST_CONFIG_SUFFIX_HPP
27 #define BOOST_CONFIG_SUFFIX_HPP
28 
29 #if defined(__GNUC__) && (__GNUC__ >= 4)
30 //
31 // Some GCC-4.x versions issue warnings even when __extension__ is used,
32 // so use this as a workaround:
33 //
34 #pragma GCC system_header
35 #endif
36 
37 //
38 // ensure that visibility macros are always defined, thus symplifying use
39 //
40 #ifndef BOOST_SYMBOL_EXPORT
41 # define BOOST_SYMBOL_EXPORT
42 #endif
43 #ifndef BOOST_SYMBOL_IMPORT
44 # define BOOST_SYMBOL_IMPORT
45 #endif
46 #ifndef BOOST_SYMBOL_VISIBLE
47 # define BOOST_SYMBOL_VISIBLE
48 #endif
49 
50 //
51 // look for long long by looking for the appropriate macros in <limits.h>.
52 // Note that we use limits.h rather than climits for maximal portability,
53 // remember that since these just declare a bunch of macros, there should be
54 // no namespace issues from this.
55 //
56 #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG)                                              \
57    && !defined(BOOST_MSVC) && !defined(__BORLANDC__)
58 # include <limits.h>
59 # if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
60 #   define BOOST_HAS_LONG_LONG
61 # else
62 #   define BOOST_NO_LONG_LONG
63 # endif
64 #endif
65 
66 // GCC 3.x will clean up all of those nasty macro definitions that
67 // BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine
68 // it under GCC 3.x.
69 #if defined(__GNUC__) && (__GNUC__ >= 3) && defined(BOOST_NO_CTYPE_FUNCTIONS)
70 #  undef BOOST_NO_CTYPE_FUNCTIONS
71 #endif
72 
73 //
74 // Assume any extensions are in namespace std:: unless stated otherwise:
75 //
76 #  ifndef BOOST_STD_EXTENSION_NAMESPACE
77 #    define BOOST_STD_EXTENSION_NAMESPACE std
78 #  endif
79 
80 //
81 // If cv-qualified specializations are not allowed, then neither are cv-void ones:
82 //
83 #  if defined(BOOST_NO_CV_SPECIALIZATIONS) \
84       && !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
85 #     define BOOST_NO_CV_VOID_SPECIALIZATIONS
86 #  endif
87 
88 //
89 // If there is no numeric_limits template, then it can't have any compile time
90 // constants either!
91 //
92 #  if defined(BOOST_NO_LIMITS) \
93       && !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS)
94 #     define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
95 #     define BOOST_NO_MS_INT64_NUMERIC_LIMITS
96 #     define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
97 #  endif
98 
99 //
100 // if there is no long long then there is no specialisation
101 // for numeric_limits<long long> either:
102 //
103 #if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)
104 #  define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
105 #endif
106 
107 //
108 // if there is no __int64 then there is no specialisation
109 // for numeric_limits<__int64> either:
110 //
111 #if !defined(BOOST_HAS_MS_INT64) && !defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS)
112 #  define BOOST_NO_MS_INT64_NUMERIC_LIMITS
113 #endif
114 
115 //
116 // if member templates are supported then so is the
117 // VC6 subset of member templates:
118 //
119 #  if !defined(BOOST_NO_MEMBER_TEMPLATES) \
120        && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
121 #     define BOOST_MSVC6_MEMBER_TEMPLATES
122 #  endif
123 
124 //
125 // Without partial specialization, can't test for partial specialisation bugs:
126 //
127 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
128       && !defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG)
129 #     define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
130 #  endif
131 
132 //
133 // Without partial specialization, we can't have array-type partial specialisations:
134 //
135 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
136       && !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
137 #     define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS
138 #  endif
139 
140 //
141 // Without partial specialization, std::iterator_traits can't work:
142 //
143 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
144       && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
145 #     define BOOST_NO_STD_ITERATOR_TRAITS
146 #  endif
147 
148 //
149 // Without partial specialization, partial
150 // specialization with default args won't work either:
151 //
152 #  if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
153       && !defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
154 #     define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
155 #  endif
156 
157 //
158 // Without member template support, we can't have template constructors
159 // in the standard library either:
160 //
161 #  if defined(BOOST_NO_MEMBER_TEMPLATES) \
162       && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
163       && !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
164 #     define BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS
165 #  endif
166 
167 //
168 // Without member template support, we can't have a conforming
169 // std::allocator template either:
170 //
171 #  if defined(BOOST_NO_MEMBER_TEMPLATES) \
172       && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
173       && !defined(BOOST_NO_STD_ALLOCATOR)
174 #     define BOOST_NO_STD_ALLOCATOR
175 #  endif
176 
177 //
178 // without ADL support then using declarations will break ADL as well:
179 //
180 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
181 #  define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
182 #endif
183 
184 //
185 // Without typeid support we have no dynamic RTTI either:
186 //
187 #if defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI)
188 #  define BOOST_NO_RTTI
189 #endif
190 
191 //
192 // If we have a standard allocator, then we have a partial one as well:
193 //
194 #if !defined(BOOST_NO_STD_ALLOCATOR)
195 #  define BOOST_HAS_PARTIAL_STD_ALLOCATOR
196 #endif
197 
198 //
199 // We can't have a working std::use_facet if there is no std::locale:
200 //
201 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_USE_FACET)
202 #     define BOOST_NO_STD_USE_FACET
203 #  endif
204 
205 //
206 // We can't have a std::messages facet if there is no std::locale:
207 //
208 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_MESSAGES)
209 #     define BOOST_NO_STD_MESSAGES
210 #  endif
211 
212 //
213 // We can't have a working std::wstreambuf if there is no std::locale:
214 //
215 #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF)
216 #     define BOOST_NO_STD_WSTREAMBUF
217 #  endif
218 
219 //
220 // We can't have a <cwctype> if there is no <cwchar>:
221 //
222 #  if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_CWCTYPE)
223 #     define BOOST_NO_CWCTYPE
224 #  endif
225 
226 //
227 // We can't have a swprintf if there is no <cwchar>:
228 //
229 #  if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_SWPRINTF)
230 #     define BOOST_NO_SWPRINTF
231 #  endif
232 
233 //
234 // If Win32 support is turned off, then we must turn off
235 // threading support also, unless there is some other
236 // thread API enabled:
237 //
238 #if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \
239    && !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS)
240 #  define BOOST_DISABLE_THREADS
241 #endif
242 
243 //
244 // Turn on threading support if the compiler thinks that it's in
245 // multithreaded mode.  We put this here because there are only a
246 // limited number of macros that identify this (if there's any missing
247 // from here then add to the appropriate compiler section):
248 //
249 #if (defined(__MT__) || defined(_MT) || defined(_REENTRANT) \
250     || defined(_PTHREADS) || defined(__APPLE__) || defined(__DragonFly__)) \
251     && !defined(BOOST_HAS_THREADS)
252 #  define BOOST_HAS_THREADS
253 #endif
254 
255 //
256 // Turn threading support off if BOOST_DISABLE_THREADS is defined:
257 //
258 #if defined(BOOST_DISABLE_THREADS) && defined(BOOST_HAS_THREADS)
259 #  undef BOOST_HAS_THREADS
260 #endif
261 
262 //
263 // Turn threading support off if we don't recognise the threading API:
264 //
265 #if defined(BOOST_HAS_THREADS) && !defined(BOOST_HAS_PTHREADS)\
266       && !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_BETHREADS)\
267       && !defined(BOOST_HAS_MPTASKS)
268 #  undef BOOST_HAS_THREADS
269 #endif
270 
271 //
272 // Turn threading detail macros off if we don't (want to) use threading
273 //
274 #ifndef BOOST_HAS_THREADS
275 #  undef BOOST_HAS_PTHREADS
276 #  undef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
277 #  undef BOOST_HAS_PTHREAD_YIELD
278 #  undef BOOST_HAS_PTHREAD_DELAY_NP
279 #  undef BOOST_HAS_WINTHREADS
280 #  undef BOOST_HAS_BETHREADS
281 #  undef BOOST_HAS_MPTASKS
282 #endif
283 
284 //
285 // If the compiler claims to be C99 conformant, then it had better
286 // have a <stdint.h>:
287 //
288 #  if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
289 #     define BOOST_HAS_STDINT_H
290 #     ifndef BOOST_HAS_LOG1P
291 #        define BOOST_HAS_LOG1P
292 #     endif
293 #     ifndef BOOST_HAS_EXPM1
294 #        define BOOST_HAS_EXPM1
295 #     endif
296 #  endif
297 
298 //
299 // Define BOOST_NO_SLIST and BOOST_NO_HASH if required.
300 // Note that this is for backwards compatibility only.
301 //
302 #  if !defined(BOOST_HAS_SLIST) && !defined(BOOST_NO_SLIST)
303 #     define BOOST_NO_SLIST
304 #  endif
305 
306 #  if !defined(BOOST_HAS_HASH) && !defined(BOOST_NO_HASH)
307 #     define BOOST_NO_HASH
308 #  endif
309 
310 //
311 // Set BOOST_SLIST_HEADER if not set already:
312 //
313 #if defined(BOOST_HAS_SLIST) && !defined(BOOST_SLIST_HEADER)
314 #  define BOOST_SLIST_HEADER <slist>
315 #endif
316 
317 //
318 // Set BOOST_HASH_SET_HEADER if not set already:
319 //
320 #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_SET_HEADER)
321 #  define BOOST_HASH_SET_HEADER <hash_set>
322 #endif
323 
324 //
325 // Set BOOST_HASH_MAP_HEADER if not set already:
326 //
327 #if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_MAP_HEADER)
328 #  define BOOST_HASH_MAP_HEADER <hash_map>
329 #endif
330 
331 //  BOOST_HAS_ABI_HEADERS
332 //  This macro gets set if we have headers that fix the ABI,
333 //  and prevent ODR violations when linking to external libraries:
334 #if defined(BOOST_ABI_PREFIX) && defined(BOOST_ABI_SUFFIX) && !defined(BOOST_HAS_ABI_HEADERS)
335 #  define BOOST_HAS_ABI_HEADERS
336 #endif
337 
338 #if defined(BOOST_HAS_ABI_HEADERS) && defined(BOOST_DISABLE_ABI_HEADERS)
339 #  undef BOOST_HAS_ABI_HEADERS
340 #endif
341 
342 //  BOOST_NO_STDC_NAMESPACE workaround  --------------------------------------//
343 //  Because std::size_t usage is so common, even in boost headers which do not
344 //  otherwise use the C library, the <cstddef> workaround is included here so
345 //  that ugly workaround code need not appear in many other boost headers.
346 //  NOTE WELL: This is a workaround for non-conforming compilers; <cstddef>
347 //  must still be #included in the usual places so that <cstddef> inclusion
348 //  works as expected with standard conforming compilers.  The resulting
349 //  double inclusion of <cstddef> is harmless.
350 
351 # if defined(BOOST_NO_STDC_NAMESPACE) && defined(__cplusplus)
352 #   include <cstddef>
353     namespace std { using ::ptrdiff_t; using ::size_t; }
354 # endif
355 
356 //  Workaround for the unfortunate min/max macros defined by some platform headers
357 
358 #define BOOST_PREVENT_MACRO_SUBSTITUTION
359 
360 #ifndef BOOST_USING_STD_MIN
361 #  define BOOST_USING_STD_MIN() using std::min
362 #endif
363 
364 #ifndef BOOST_USING_STD_MAX
365 #  define BOOST_USING_STD_MAX() using std::max
366 #endif
367 
368 //  BOOST_NO_STD_MIN_MAX workaround  -----------------------------------------//
369 
370 #  if defined(BOOST_NO_STD_MIN_MAX) && defined(__cplusplus)
371 
372 namespace std {
373   template <class _Tp>
BOOST_PREVENT_MACRO_SUBSTITUTION(const _Tp & __a,const _Tp & __b)374   inline const _Tp& min BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
375     return __b < __a ? __b : __a;
376   }
377   template <class _Tp>
BOOST_PREVENT_MACRO_SUBSTITUTION(const _Tp & __a,const _Tp & __b)378   inline const _Tp& max BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
379     return  __a < __b ? __b : __a;
380   }
381 }
382 
383 #  endif
384 
385 // BOOST_STATIC_CONSTANT workaround --------------------------------------- //
386 // On compilers which don't allow in-class initialization of static integral
387 // constant members, we must use enums as a workaround if we want the constants
388 // to be available at compile-time. This macro gives us a convenient way to
389 // declare such constants.
390 
391 #  ifdef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
392 #       define BOOST_STATIC_CONSTANT(type, assignment) enum { assignment }
393 #  else
394 #     define BOOST_STATIC_CONSTANT(type, assignment) static const type assignment
395 #  endif
396 
397 // BOOST_USE_FACET / HAS_FACET workaround ----------------------------------//
398 // When the standard library does not have a conforming std::use_facet there
399 // are various workarounds available, but they differ from library to library.
400 // The same problem occurs with has_facet.
401 // These macros provide a consistent way to access a locale's facets.
402 // Usage:
403 //    replace
404 //       std::use_facet<Type>(loc);
405 //    with
406 //       BOOST_USE_FACET(Type, loc);
407 //    Note do not add a std:: prefix to the front of BOOST_USE_FACET!
408 //  Use for BOOST_HAS_FACET is analogous.
409 
410 #if defined(BOOST_NO_STD_USE_FACET)
411 #  ifdef BOOST_HAS_TWO_ARG_USE_FACET
412 #     define BOOST_USE_FACET(Type, loc) std::use_facet(loc, static_cast<Type*>(0))
413 #     define BOOST_HAS_FACET(Type, loc) std::has_facet(loc, static_cast<Type*>(0))
414 #  elif defined(BOOST_HAS_MACRO_USE_FACET)
415 #     define BOOST_USE_FACET(Type, loc) std::_USE(loc, Type)
416 #     define BOOST_HAS_FACET(Type, loc) std::_HAS(loc, Type)
417 #  elif defined(BOOST_HAS_STLP_USE_FACET)
418 #     define BOOST_USE_FACET(Type, loc) (*std::_Use_facet<Type >(loc))
419 #     define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
420 #  endif
421 #else
422 #  define BOOST_USE_FACET(Type, loc) std::use_facet< Type >(loc)
423 #  define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
424 #endif
425 
426 // BOOST_NESTED_TEMPLATE workaround ------------------------------------------//
427 // Member templates are supported by some compilers even though they can't use
428 // the A::template member<U> syntax, as a workaround replace:
429 //
430 // typedef typename A::template rebind<U> binder;
431 //
432 // with:
433 //
434 // typedef typename A::BOOST_NESTED_TEMPLATE rebind<U> binder;
435 
436 #ifndef BOOST_NO_MEMBER_TEMPLATE_KEYWORD
437 #  define BOOST_NESTED_TEMPLATE template
438 #else
439 #  define BOOST_NESTED_TEMPLATE
440 #endif
441 
442 // BOOST_UNREACHABLE_RETURN(x) workaround -------------------------------------//
443 // Normally evaluates to nothing, unless BOOST_NO_UNREACHABLE_RETURN_DETECTION
444 // is defined, in which case it evaluates to return x; Use when you have a return
445 // statement that can never be reached.
446 
447 #ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION
448 #  define BOOST_UNREACHABLE_RETURN(x) return x;
449 #else
450 #  define BOOST_UNREACHABLE_RETURN(x)
451 #endif
452 
453 // BOOST_DEDUCED_TYPENAME workaround ------------------------------------------//
454 //
455 // Some compilers don't support the use of `typename' for dependent
456 // types in deduced contexts, e.g.
457 //
458 //     template <class T> void f(T, typename T::type);
459 //                                  ^^^^^^^^
460 // Replace these declarations with:
461 //
462 //     template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type);
463 
464 #ifndef BOOST_NO_DEDUCED_TYPENAME
465 #  define BOOST_DEDUCED_TYPENAME typename
466 #else
467 #  define BOOST_DEDUCED_TYPENAME
468 #endif
469 
470 #ifndef BOOST_NO_TYPENAME_WITH_CTOR
471 #  define BOOST_CTOR_TYPENAME typename
472 #else
473 #  define BOOST_CTOR_TYPENAME
474 #endif
475 
476 // long long workaround ------------------------------------------//
477 // On gcc (and maybe other compilers?) long long is alway supported
478 // but it's use may generate either warnings (with -ansi), or errors
479 // (with -pedantic -ansi) unless it's use is prefixed by __extension__
480 //
481 #if defined(BOOST_HAS_LONG_LONG) && defined(__cplusplus)
482 namespace boost{
483 #  ifdef __GNUC__
484    __extension__ typedef long long long_long_type;
485    __extension__ typedef unsigned long long ulong_long_type;
486 #  else
487    typedef long long long_long_type;
488    typedef unsigned long long ulong_long_type;
489 #  endif
490 }
491 #endif
492 // same again for __int128:
493 #if defined(BOOST_HAS_INT128) && defined(__cplusplus)
494 namespace boost{
495 #  ifdef __GNUC__
496    __extension__ typedef __int128 int128_type;
497    __extension__ typedef unsigned __int128 uint128_type;
498 #  else
499    typedef __int128 int128_type;
500    typedef unsigned __int128 uint128_type;
501 #  endif
502 }
503 #endif
504 
505 // BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------//
506 
507 // These macros are obsolete. Port away and remove.
508 
509 #  define BOOST_EXPLICIT_TEMPLATE_TYPE(t)
510 #  define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
511 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
512 #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
513 
514 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
515 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
516 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
517 #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
518 
519 // When BOOST_NO_STD_TYPEINFO is defined, we can just import
520 // the global definition into std namespace:
521 #if defined(BOOST_NO_STD_TYPEINFO) && defined(__cplusplus)
522 #include <typeinfo>
523 namespace std{ using ::type_info; }
524 #endif
525 
526 // ---------------------------------------------------------------------------//
527 
528 //
529 // Helper macro BOOST_STRINGIZE:
530 // Converts the parameter X to a string after macro replacement
531 // on X has been performed.
532 //
533 #define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X)
534 #define BOOST_DO_STRINGIZE(X) #X
535 
536 //
537 // Helper macro BOOST_JOIN:
538 // The following piece of macro magic joins the two
539 // arguments together, even when one of the arguments is
540 // itself a macro (see 16.3.1 in C++ standard).  The key
541 // is that macro expansion of macro arguments does not
542 // occur in BOOST_DO_JOIN2 but does in BOOST_DO_JOIN.
543 //
544 #define BOOST_JOIN( X, Y ) BOOST_DO_JOIN( X, Y )
545 #define BOOST_DO_JOIN( X, Y ) BOOST_DO_JOIN2(X,Y)
546 #define BOOST_DO_JOIN2( X, Y ) X##Y
547 
548 //
549 // Set some default values for compiler/library/platform names.
550 // These are for debugging config setup only:
551 //
552 #  ifndef BOOST_COMPILER
553 #     define BOOST_COMPILER "Unknown ISO C++ Compiler"
554 #  endif
555 #  ifndef BOOST_STDLIB
556 #     define BOOST_STDLIB "Unknown ISO standard library"
557 #  endif
558 #  ifndef BOOST_PLATFORM
559 #     if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \
560          || defined(_POSIX_SOURCE)
561 #        define BOOST_PLATFORM "Generic Unix"
562 #     else
563 #        define BOOST_PLATFORM "Unknown"
564 #     endif
565 #  endif
566 
567 //
568 // Set some default values GPU support
569 //
570 #  ifndef BOOST_GPU_ENABLED
571 #  define BOOST_GPU_ENABLED
572 #  endif
573 
574 // BOOST_FORCEINLINE ---------------------------------------------//
575 // Macro to use in place of 'inline' to force a function to be inline
576 #if !defined(BOOST_FORCEINLINE)
577 #  if defined(_MSC_VER)
578 #    define BOOST_FORCEINLINE __forceinline
579 #  elif defined(__GNUC__) && __GNUC__ > 3
580      // Clang also defines __GNUC__ (as 4)
581 #    define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__))
582 #  else
583 #    define BOOST_FORCEINLINE inline
584 #  endif
585 #endif
586 
587 // BOOST_NOINLINE ---------------------------------------------//
588 // Macro to use in place of 'inline' to prevent a function to be inlined
589 #if !defined(BOOST_NOINLINE)
590 #  if defined(_MSC_VER)
591 #    define BOOST_NOINLINE __declspec(noinline)
592 #  elif defined(__GNUC__) && __GNUC__ > 3
593      // Clang also defines __GNUC__ (as 4)
594 #    if defined(__CUDACC__)
595        // nvcc doesn't always parse __noinline__,
596        // see: https://svn.boost.org/trac/boost/ticket/9392
597 #      define BOOST_NOINLINE __attribute__ ((noinline))
598 #    else
599 #      define BOOST_NOINLINE __attribute__ ((__noinline__))
600 #    endif
601 #  else
602 #    define BOOST_NOINLINE
603 #  endif
604 #endif
605 
606 // BOOST_NORETURN ---------------------------------------------//
607 // Macro to use before a function declaration/definition to designate
608 // the function as not returning normally (i.e. with a return statement
609 // or by leaving the function scope, if the function return type is void).
610 #if !defined(BOOST_NORETURN)
611 #  if defined(_MSC_VER)
612 #    define BOOST_NORETURN __declspec(noreturn)
613 #  elif defined(__GNUC__)
614 #    define BOOST_NORETURN __attribute__ ((__noreturn__))
615 #  else
616 #    define BOOST_NO_NORETURN
617 #    define BOOST_NORETURN
618 #  endif
619 #endif
620 
621 // Branch prediction hints
622 // These macros are intended to wrap conditional expressions that yield true or false
623 //
624 //  if (BOOST_LIKELY(var == 10))
625 //  {
626 //     // the most probable code here
627 //  }
628 //
629 #if !defined(BOOST_LIKELY)
630 #  define BOOST_LIKELY(x) x
631 #endif
632 #if !defined(BOOST_UNLIKELY)
633 #  define BOOST_UNLIKELY(x) x
634 #endif
635 
636 // Type and data alignment specification
637 //
638 #if !defined(BOOST_NO_CXX11_ALIGNAS)
639 #  define BOOST_ALIGNMENT(x) alignas(x)
640 #elif defined(_MSC_VER)
641 #  define BOOST_ALIGNMENT(x) __declspec(align(x))
642 #elif defined(__GNUC__)
643 #  define BOOST_ALIGNMENT(x) __attribute__ ((__aligned__(x)))
644 #else
645 #  define BOOST_NO_ALIGNMENT
646 #  define BOOST_ALIGNMENT(x)
647 #endif
648 
649 // Lack of non-public defaulted functions is implied by the lack of any defaulted functions
650 #if !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS) && defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS)
651 #  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
652 #endif
653 
654 // Defaulted and deleted function declaration helpers
655 // These macros are intended to be inside a class definition.
656 // BOOST_DEFAULTED_FUNCTION accepts the function declaration and its
657 // body, which will be used if the compiler doesn't support defaulted functions.
658 // BOOST_DELETED_FUNCTION only accepts the function declaration. It
659 // will expand to a private function declaration, if the compiler doesn't support
660 // deleted functions. Because of this it is recommended to use BOOST_DELETED_FUNCTION
661 // in the end of the class definition.
662 //
663 //  class my_class
664 //  {
665 //  public:
666 //      // Default-constructible
667 //      BOOST_DEFAULTED_FUNCTION(my_class(), {})
668 //      // Copying prohibited
669 //      BOOST_DELETED_FUNCTION(my_class(my_class const&))
670 //      BOOST_DELETED_FUNCTION(my_class& operator= (my_class const&))
671 //  };
672 //
673 #if !(defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS))
674 #   define BOOST_DEFAULTED_FUNCTION(fun, body) fun = default;
675 #else
676 #   define BOOST_DEFAULTED_FUNCTION(fun, body) fun body
677 #endif
678 
679 #if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
680 #   define BOOST_DELETED_FUNCTION(fun) fun = delete;
681 #else
682 #   define BOOST_DELETED_FUNCTION(fun) private: fun;
683 #endif
684 
685 //
686 // Set BOOST_NO_DECLTYPE_N3276 when BOOST_NO_DECLTYPE is defined
687 //
688 #if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_CXX11_DECLTYPE_N3276)
689 #define BOOST_NO_CXX11_DECLTYPE_N3276 BOOST_NO_CXX11_DECLTYPE
690 #endif
691 
692 //  -------------------- Deprecated macros for 1.50 ---------------------------
693 //  These will go away in a future release
694 
695 //  Use BOOST_NO_CXX11_HDR_UNORDERED_SET or BOOST_NO_CXX11_HDR_UNORDERED_MAP
696 //           instead of BOOST_NO_STD_UNORDERED
697 #if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) || defined (BOOST_NO_CXX11_HDR_UNORDERED_SET)
698 # ifndef BOOST_NO_CXX11_STD_UNORDERED
699 #  define BOOST_NO_CXX11_STD_UNORDERED
700 # endif
701 #endif
702 
703 //  Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST instead of BOOST_NO_INITIALIZER_LISTS
704 #if defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) && !defined(BOOST_NO_INITIALIZER_LISTS)
705 #  define BOOST_NO_INITIALIZER_LISTS
706 #endif
707 
708 //  Use BOOST_NO_CXX11_HDR_ARRAY instead of BOOST_NO_0X_HDR_ARRAY
709 #if defined(BOOST_NO_CXX11_HDR_ARRAY) && !defined(BOOST_NO_0X_HDR_ARRAY)
710 #  define BOOST_NO_0X_HDR_ARRAY
711 #endif
712 //  Use BOOST_NO_CXX11_HDR_CHRONO instead of BOOST_NO_0X_HDR_CHRONO
713 #if defined(BOOST_NO_CXX11_HDR_CHRONO) && !defined(BOOST_NO_0X_HDR_CHRONO)
714 #  define BOOST_NO_0X_HDR_CHRONO
715 #endif
716 //  Use BOOST_NO_CXX11_HDR_CODECVT instead of BOOST_NO_0X_HDR_CODECVT
717 #if defined(BOOST_NO_CXX11_HDR_CODECVT) && !defined(BOOST_NO_0X_HDR_CODECVT)
718 #  define BOOST_NO_0X_HDR_CODECVT
719 #endif
720 //  Use BOOST_NO_CXX11_HDR_CONDITION_VARIABLE instead of BOOST_NO_0X_HDR_CONDITION_VARIABLE
721 #if defined(BOOST_NO_CXX11_HDR_CONDITION_VARIABLE) && !defined(BOOST_NO_0X_HDR_CONDITION_VARIABLE)
722 #  define BOOST_NO_0X_HDR_CONDITION_VARIABLE
723 #endif
724 //  Use BOOST_NO_CXX11_HDR_FORWARD_LIST instead of BOOST_NO_0X_HDR_FORWARD_LIST
725 #if defined(BOOST_NO_CXX11_HDR_FORWARD_LIST) && !defined(BOOST_NO_0X_HDR_FORWARD_LIST)
726 #  define BOOST_NO_0X_HDR_FORWARD_LIST
727 #endif
728 //  Use BOOST_NO_CXX11_HDR_FUTURE instead of BOOST_NO_0X_HDR_FUTURE
729 #if defined(BOOST_NO_CXX11_HDR_FUTURE) && !defined(BOOST_NO_0X_HDR_FUTURE)
730 #  define BOOST_NO_0X_HDR_FUTURE
731 #endif
732 
733 //  Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST
734 //  instead of BOOST_NO_0X_HDR_INITIALIZER_LIST or BOOST_NO_INITIALIZER_LISTS
735 #ifdef BOOST_NO_CXX11_HDR_INITIALIZER_LIST
736 # ifndef BOOST_NO_0X_HDR_INITIALIZER_LIST
737 #  define BOOST_NO_0X_HDR_INITIALIZER_LIST
738 # endif
739 # ifndef BOOST_NO_INITIALIZER_LISTS
740 #  define BOOST_NO_INITIALIZER_LISTS
741 # endif
742 #endif
743 
744 //  Use BOOST_NO_CXX11_HDR_MUTEX instead of BOOST_NO_0X_HDR_MUTEX
745 #if defined(BOOST_NO_CXX11_HDR_MUTEX) && !defined(BOOST_NO_0X_HDR_MUTEX)
746 #  define BOOST_NO_0X_HDR_MUTEX
747 #endif
748 //  Use BOOST_NO_CXX11_HDR_RANDOM instead of BOOST_NO_0X_HDR_RANDOM
749 #if defined(BOOST_NO_CXX11_HDR_RANDOM) && !defined(BOOST_NO_0X_HDR_RANDOM)
750 #  define BOOST_NO_0X_HDR_RANDOM
751 #endif
752 //  Use BOOST_NO_CXX11_HDR_RATIO instead of BOOST_NO_0X_HDR_RATIO
753 #if defined(BOOST_NO_CXX11_HDR_RATIO) && !defined(BOOST_NO_0X_HDR_RATIO)
754 #  define BOOST_NO_0X_HDR_RATIO
755 #endif
756 //  Use BOOST_NO_CXX11_HDR_REGEX instead of BOOST_NO_0X_HDR_REGEX
757 #if defined(BOOST_NO_CXX11_HDR_REGEX) && !defined(BOOST_NO_0X_HDR_REGEX)
758 #  define BOOST_NO_0X_HDR_REGEX
759 #endif
760 //  Use BOOST_NO_CXX11_HDR_SYSTEM_ERROR instead of BOOST_NO_0X_HDR_SYSTEM_ERROR
761 #if defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR) && !defined(BOOST_NO_0X_HDR_SYSTEM_ERROR)
762 #  define BOOST_NO_0X_HDR_SYSTEM_ERROR
763 #endif
764 //  Use BOOST_NO_CXX11_HDR_THREAD instead of BOOST_NO_0X_HDR_THREAD
765 #if defined(BOOST_NO_CXX11_HDR_THREAD) && !defined(BOOST_NO_0X_HDR_THREAD)
766 #  define BOOST_NO_0X_HDR_THREAD
767 #endif
768 //  Use BOOST_NO_CXX11_HDR_TUPLE instead of BOOST_NO_0X_HDR_TUPLE
769 #if defined(BOOST_NO_CXX11_HDR_TUPLE) && !defined(BOOST_NO_0X_HDR_TUPLE)
770 #  define BOOST_NO_0X_HDR_TUPLE
771 #endif
772 //  Use BOOST_NO_CXX11_HDR_TYPE_TRAITS instead of BOOST_NO_0X_HDR_TYPE_TRAITS
773 #if defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS) && !defined(BOOST_NO_0X_HDR_TYPE_TRAITS)
774 #  define BOOST_NO_0X_HDR_TYPE_TRAITS
775 #endif
776 //  Use BOOST_NO_CXX11_HDR_TYPEINDEX instead of BOOST_NO_0X_HDR_TYPEINDEX
777 #if defined(BOOST_NO_CXX11_HDR_TYPEINDEX) && !defined(BOOST_NO_0X_HDR_TYPEINDEX)
778 #  define BOOST_NO_0X_HDR_TYPEINDEX
779 #endif
780 //  Use BOOST_NO_CXX11_HDR_UNORDERED_MAP instead of BOOST_NO_0X_HDR_UNORDERED_MAP
781 #if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) && !defined(BOOST_NO_0X_HDR_UNORDERED_MAP)
782 #  define BOOST_NO_0X_HDR_UNORDERED_MAP
783 #endif
784 //  Use BOOST_NO_CXX11_HDR_UNORDERED_SET instead of BOOST_NO_0X_HDR_UNORDERED_SET
785 #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) && !defined(BOOST_NO_0X_HDR_UNORDERED_SET)
786 #  define BOOST_NO_0X_HDR_UNORDERED_SET
787 #endif
788 
789 //  ------------------ End of deprecated macros for 1.50 ---------------------------
790 
791 //  -------------------- Deprecated macros for 1.51 ---------------------------
792 //  These will go away in a future release
793 
794 //  Use     BOOST_NO_CXX11_AUTO_DECLARATIONS instead of   BOOST_NO_AUTO_DECLARATIONS
795 #if defined(BOOST_NO_CXX11_AUTO_DECLARATIONS) && !defined(BOOST_NO_AUTO_DECLARATIONS)
796 #  define BOOST_NO_AUTO_DECLARATIONS
797 #endif
798 //  Use     BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS instead of   BOOST_NO_AUTO_MULTIDECLARATIONS
799 #if defined(BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS) && !defined(BOOST_NO_AUTO_MULTIDECLARATIONS)
800 #  define BOOST_NO_AUTO_MULTIDECLARATIONS
801 #endif
802 //  Use     BOOST_NO_CXX11_CHAR16_T instead of   BOOST_NO_CHAR16_T
803 #if defined(BOOST_NO_CXX11_CHAR16_T) && !defined(BOOST_NO_CHAR16_T)
804 #  define BOOST_NO_CHAR16_T
805 #endif
806 //  Use     BOOST_NO_CXX11_CHAR32_T instead of   BOOST_NO_CHAR32_T
807 #if defined(BOOST_NO_CXX11_CHAR32_T) && !defined(BOOST_NO_CHAR32_T)
808 #  define BOOST_NO_CHAR32_T
809 #endif
810 //  Use     BOOST_NO_CXX11_TEMPLATE_ALIASES instead of   BOOST_NO_TEMPLATE_ALIASES
811 #if defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) && !defined(BOOST_NO_TEMPLATE_ALIASES)
812 #  define BOOST_NO_TEMPLATE_ALIASES
813 #endif
814 //  Use     BOOST_NO_CXX11_CONSTEXPR instead of   BOOST_NO_CONSTEXPR
815 #if defined(BOOST_NO_CXX11_CONSTEXPR) && !defined(BOOST_NO_CONSTEXPR)
816 #  define BOOST_NO_CONSTEXPR
817 #endif
818 //  Use     BOOST_NO_CXX11_DECLTYPE_N3276 instead of   BOOST_NO_DECLTYPE_N3276
819 #if defined(BOOST_NO_CXX11_DECLTYPE_N3276) && !defined(BOOST_NO_DECLTYPE_N3276)
820 #  define BOOST_NO_DECLTYPE_N3276
821 #endif
822 //  Use     BOOST_NO_CXX11_DECLTYPE instead of   BOOST_NO_DECLTYPE
823 #if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_DECLTYPE)
824 #  define BOOST_NO_DECLTYPE
825 #endif
826 //  Use     BOOST_NO_CXX11_DEFAULTED_FUNCTIONS instead of   BOOST_NO_DEFAULTED_FUNCTIONS
827 #if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_DEFAULTED_FUNCTIONS)
828 #  define BOOST_NO_DEFAULTED_FUNCTIONS
829 #endif
830 //  Use     BOOST_NO_CXX11_DELETED_FUNCTIONS instead of   BOOST_NO_DELETED_FUNCTIONS
831 #if defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) && !defined(BOOST_NO_DELETED_FUNCTIONS)
832 #  define BOOST_NO_DELETED_FUNCTIONS
833 #endif
834 //  Use     BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS instead of   BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
835 #if defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS) && !defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATORS)
836 #  define BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
837 #endif
838 //  Use     BOOST_NO_CXX11_EXTERN_TEMPLATE instead of   BOOST_NO_EXTERN_TEMPLATE
839 #if defined(BOOST_NO_CXX11_EXTERN_TEMPLATE) && !defined(BOOST_NO_EXTERN_TEMPLATE)
840 #  define BOOST_NO_EXTERN_TEMPLATE
841 #endif
842 //  Use     BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS instead of   BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
843 #if defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) && !defined(BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS)
844 #  define BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
845 #endif
846 //  Use     BOOST_NO_CXX11_LAMBDAS instead of   BOOST_NO_LAMBDAS
847 #if defined(BOOST_NO_CXX11_LAMBDAS) && !defined(BOOST_NO_LAMBDAS)
848 #  define BOOST_NO_LAMBDAS
849 #endif
850 //  Use     BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS instead of   BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
851 #if defined(BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS) && !defined(BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS)
852 #  define BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
853 #endif
854 //  Use     BOOST_NO_CXX11_NOEXCEPT instead of   BOOST_NO_NOEXCEPT
855 #if defined(BOOST_NO_CXX11_NOEXCEPT) && !defined(BOOST_NO_NOEXCEPT)
856 #  define BOOST_NO_NOEXCEPT
857 #endif
858 //  Use     BOOST_NO_CXX11_NULLPTR instead of   BOOST_NO_NULLPTR
859 #if defined(BOOST_NO_CXX11_NULLPTR) && !defined(BOOST_NO_NULLPTR)
860 #  define BOOST_NO_NULLPTR
861 #endif
862 //  Use     BOOST_NO_CXX11_RAW_LITERALS instead of   BOOST_NO_RAW_LITERALS
863 #if defined(BOOST_NO_CXX11_RAW_LITERALS) && !defined(BOOST_NO_RAW_LITERALS)
864 #  define BOOST_NO_RAW_LITERALS
865 #endif
866 //  Use     BOOST_NO_CXX11_RVALUE_REFERENCES instead of   BOOST_NO_RVALUE_REFERENCES
867 #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_RVALUE_REFERENCES)
868 #  define BOOST_NO_RVALUE_REFERENCES
869 #endif
870 //  Use     BOOST_NO_CXX11_SCOPED_ENUMS instead of   BOOST_NO_SCOPED_ENUMS
871 #if defined(BOOST_NO_CXX11_SCOPED_ENUMS) && !defined(BOOST_NO_SCOPED_ENUMS)
872 #  define BOOST_NO_SCOPED_ENUMS
873 #endif
874 //  Use     BOOST_NO_CXX11_STATIC_ASSERT instead of   BOOST_NO_STATIC_ASSERT
875 #if defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_NO_STATIC_ASSERT)
876 #  define BOOST_NO_STATIC_ASSERT
877 #endif
878 //  Use     BOOST_NO_CXX11_STD_UNORDERED instead of   BOOST_NO_STD_UNORDERED
879 #if defined(BOOST_NO_CXX11_STD_UNORDERED) && !defined(BOOST_NO_STD_UNORDERED)
880 #  define BOOST_NO_STD_UNORDERED
881 #endif
882 //  Use     BOOST_NO_CXX11_UNICODE_LITERALS instead of   BOOST_NO_UNICODE_LITERALS
883 #if defined(BOOST_NO_CXX11_UNICODE_LITERALS) && !defined(BOOST_NO_UNICODE_LITERALS)
884 #  define BOOST_NO_UNICODE_LITERALS
885 #endif
886 //  Use     BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX instead of   BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
887 #if defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX) && !defined(BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX)
888 #  define BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
889 #endif
890 //  Use     BOOST_NO_CXX11_VARIADIC_TEMPLATES instead of   BOOST_NO_VARIADIC_TEMPLATES
891 #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_VARIADIC_TEMPLATES)
892 #  define BOOST_NO_VARIADIC_TEMPLATES
893 #endif
894 //  Use     BOOST_NO_CXX11_VARIADIC_MACROS instead of   BOOST_NO_VARIADIC_MACROS
895 #if defined(BOOST_NO_CXX11_VARIADIC_MACROS) && !defined(BOOST_NO_VARIADIC_MACROS)
896 #  define BOOST_NO_VARIADIC_MACROS
897 #endif
898 //  Use     BOOST_NO_CXX11_NUMERIC_LIMITS instead of   BOOST_NO_NUMERIC_LIMITS_LOWEST
899 #if defined(BOOST_NO_CXX11_NUMERIC_LIMITS) && !defined(BOOST_NO_NUMERIC_LIMITS_LOWEST)
900 #  define BOOST_NO_NUMERIC_LIMITS_LOWEST
901 #endif
902 //  ------------------ End of deprecated macros for 1.51 ---------------------------
903 
904 
905 
906 //
907 // Helper macros BOOST_NOEXCEPT, BOOST_NOEXCEPT_IF, BOOST_NOEXCEPT_EXPR
908 // These aid the transition to C++11 while still supporting C++03 compilers
909 //
910 #ifdef BOOST_NO_CXX11_NOEXCEPT
911 #  define BOOST_NOEXCEPT
912 #  define BOOST_NOEXCEPT_OR_NOTHROW throw()
913 #  define BOOST_NOEXCEPT_IF(Predicate)
914 #  define BOOST_NOEXCEPT_EXPR(Expression) false
915 #else
916 #  define BOOST_NOEXCEPT noexcept
917 #  define BOOST_NOEXCEPT_OR_NOTHROW noexcept
918 #  define BOOST_NOEXCEPT_IF(Predicate) noexcept((Predicate))
919 #  define BOOST_NOEXCEPT_EXPR(Expression) noexcept((Expression))
920 #endif
921 //
922 // Helper macro BOOST_FALLTHROUGH
923 // Fallback definition of BOOST_FALLTHROUGH macro used to mark intended
924 // fall-through between case labels in a switch statement. We use a definition
925 // that requires a semicolon after it to avoid at least one type of misuse even
926 // on unsupported compilers.
927 //
928 #ifndef BOOST_FALLTHROUGH
929 #  define BOOST_FALLTHROUGH ((void)0)
930 #endif
931 
932 //
933 // constexpr workarounds
934 //
935 #if defined(BOOST_NO_CXX11_CONSTEXPR)
936 #define BOOST_CONSTEXPR
937 #define BOOST_CONSTEXPR_OR_CONST const
938 #else
939 #define BOOST_CONSTEXPR constexpr
940 #define BOOST_CONSTEXPR_OR_CONST constexpr
941 #endif
942 #if defined(BOOST_NO_CXX14_CONSTEXPR)
943 #define BOOST_CXX14_CONSTEXPR
944 #else
945 #define BOOST_CXX14_CONSTEXPR constexpr
946 #endif
947 
948 //
949 // Unused variable/typedef workarounds:
950 //
951 #ifndef BOOST_ATTRIBUTE_UNUSED
952 #  define BOOST_ATTRIBUTE_UNUSED
953 #endif
954 
955 #define BOOST_STATIC_CONSTEXPR  static BOOST_CONSTEXPR_OR_CONST
956 
957 //
958 // Set BOOST_HAS_STATIC_ASSERT when BOOST_NO_CXX11_STATIC_ASSERT is not defined
959 //
960 #if !defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_HAS_STATIC_ASSERT)
961 #  define BOOST_HAS_STATIC_ASSERT
962 #endif
963 
964 //
965 // Set BOOST_HAS_RVALUE_REFS when BOOST_NO_CXX11_RVALUE_REFERENCES is not defined
966 //
967 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_HAS_RVALUE_REFS)
968 #define BOOST_HAS_RVALUE_REFS
969 #endif
970 
971 //
972 // Set BOOST_HAS_VARIADIC_TMPL when BOOST_NO_CXX11_VARIADIC_TEMPLATES is not defined
973 //
974 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_HAS_VARIADIC_TMPL)
975 #define BOOST_HAS_VARIADIC_TMPL
976 #endif
977 //
978 // Set BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS when
979 // BOOST_NO_CXX11_VARIADIC_TEMPLATES is set:
980 //
981 #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS)
982 #  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
983 #endif
984 
985 //
986 // Finish off with checks for macros that are depricated / no longer supported,
987 // if any of these are set then it's very likely that much of Boost will no
988 // longer work.  So stop with a #error for now, but give the user a chance
989 // to continue at their own risk if they really want to:
990 //
991 #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_CONFIG_ALLOW_DEPRECATED)
992 #  error "You are using a compiler which lacks features which are now a minimum requirement in order to use Boost, define BOOST_CONFIG_ALLOW_DEPRECATED if you want to continue at your own risk!!!"
993 #endif
994 
995 #endif
996