github.com/searKing/golang/go@v1.2.74/os/signal/cgo/include/boost/config/detail/suffix.hpp (about)

     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>
   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>
   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  #ifndef BOOST_UNREACHABLE_RETURN
   448  #  ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION
   449  #     define BOOST_UNREACHABLE_RETURN(x) return x;
   450  #  else
   451  #     define BOOST_UNREACHABLE_RETURN(x)
   452  #  endif
   453  #endif
   454  
   455  // BOOST_DEDUCED_TYPENAME workaround ------------------------------------------//
   456  //
   457  // Some compilers don't support the use of `typename' for dependent
   458  // types in deduced contexts, e.g.
   459  //
   460  //     template <class T> void f(T, typename T::type);
   461  //                                  ^^^^^^^^
   462  // Replace these declarations with:
   463  //
   464  //     template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type);
   465  
   466  #ifndef BOOST_NO_DEDUCED_TYPENAME
   467  #  define BOOST_DEDUCED_TYPENAME typename
   468  #else
   469  #  define BOOST_DEDUCED_TYPENAME
   470  #endif
   471  
   472  #ifndef BOOST_NO_TYPENAME_WITH_CTOR
   473  #  define BOOST_CTOR_TYPENAME typename
   474  #else
   475  #  define BOOST_CTOR_TYPENAME
   476  #endif
   477  
   478  // long long workaround ------------------------------------------//
   479  // On gcc (and maybe other compilers?) long long is alway supported
   480  // but it's use may generate either warnings (with -ansi), or errors
   481  // (with -pedantic -ansi) unless it's use is prefixed by __extension__
   482  //
   483  #if defined(BOOST_HAS_LONG_LONG) && defined(__cplusplus)
   484  namespace boost{
   485  #  ifdef __GNUC__
   486     __extension__ typedef long long long_long_type;
   487     __extension__ typedef unsigned long long ulong_long_type;
   488  #  else
   489     typedef long long long_long_type;
   490     typedef unsigned long long ulong_long_type;
   491  #  endif
   492  }
   493  #endif
   494  // same again for __int128:
   495  #if defined(BOOST_HAS_INT128) && defined(__cplusplus)
   496  namespace boost{
   497  #  ifdef __GNUC__
   498     __extension__ typedef __int128 int128_type;
   499     __extension__ typedef unsigned __int128 uint128_type;
   500  #  else
   501     typedef __int128 int128_type;
   502     typedef unsigned __int128 uint128_type;
   503  #  endif
   504  }
   505  #endif
   506  // same again for __float128:
   507  #if defined(BOOST_HAS_FLOAT128) && defined(__cplusplus)
   508  namespace boost {
   509  #  ifdef __GNUC__
   510     __extension__ typedef __float128 float128_type;
   511  #  else
   512     typedef __float128 float128_type;
   513  #  endif
   514  }
   515  #endif
   516  
   517  // BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------//
   518  
   519  // These macros are obsolete. Port away and remove.
   520  
   521  #  define BOOST_EXPLICIT_TEMPLATE_TYPE(t)
   522  #  define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
   523  #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
   524  #  define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
   525  
   526  #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
   527  #  define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
   528  #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
   529  #  define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
   530  
   531  // When BOOST_NO_STD_TYPEINFO is defined, we can just import
   532  // the global definition into std namespace:
   533  #if defined(BOOST_NO_STD_TYPEINFO) && defined(__cplusplus)
   534  #include <typeinfo>
   535  namespace std{ using ::type_info; }
   536  #endif
   537  
   538  // ---------------------------------------------------------------------------//
   539  
   540  // Helper macro BOOST_STRINGIZE:
   541  // Helper macro BOOST_JOIN:
   542  
   543  #include <boost/config/helper_macros.hpp>
   544  
   545  //
   546  // Set some default values for compiler/library/platform names.
   547  // These are for debugging config setup only:
   548  //
   549  #  ifndef BOOST_COMPILER
   550  #     define BOOST_COMPILER "Unknown ISO C++ Compiler"
   551  #  endif
   552  #  ifndef BOOST_STDLIB
   553  #     define BOOST_STDLIB "Unknown ISO standard library"
   554  #  endif
   555  #  ifndef BOOST_PLATFORM
   556  #     if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \
   557           || defined(_POSIX_SOURCE)
   558  #        define BOOST_PLATFORM "Generic Unix"
   559  #     else
   560  #        define BOOST_PLATFORM "Unknown"
   561  #     endif
   562  #  endif
   563  
   564  //
   565  // Set some default values GPU support
   566  //
   567  #  ifndef BOOST_GPU_ENABLED
   568  #  define BOOST_GPU_ENABLED
   569  #  endif
   570  
   571  // BOOST_RESTRICT ---------------------------------------------//
   572  // Macro to use in place of 'restrict' keyword variants
   573  #if !defined(BOOST_RESTRICT)
   574  #  if defined(_MSC_VER)
   575  #    define BOOST_RESTRICT __restrict
   576  #    if !defined(BOOST_NO_RESTRICT_REFERENCES) && (_MSC_FULL_VER < 190023026)
   577  #      define BOOST_NO_RESTRICT_REFERENCES
   578  #    endif
   579  #  elif defined(__GNUC__) && __GNUC__ > 3
   580       // Clang also defines __GNUC__ (as 4)
   581  #    define BOOST_RESTRICT __restrict__
   582  #  else
   583  #    define BOOST_RESTRICT
   584  #    if !defined(BOOST_NO_RESTRICT_REFERENCES)
   585  #      define BOOST_NO_RESTRICT_REFERENCES
   586  #    endif
   587  #  endif
   588  #endif
   589  
   590  // BOOST_MAY_ALIAS -----------------------------------------------//
   591  // The macro expands to an attribute to mark a type that is allowed to alias other types.
   592  // The macro is defined in the compiler-specific headers.
   593  #if !defined(BOOST_MAY_ALIAS)
   594  #  define BOOST_NO_MAY_ALIAS
   595  #  define BOOST_MAY_ALIAS
   596  #endif
   597  
   598  // BOOST_FORCEINLINE ---------------------------------------------//
   599  // Macro to use in place of 'inline' to force a function to be inline
   600  #if !defined(BOOST_FORCEINLINE)
   601  #  if defined(_MSC_VER)
   602  #    define BOOST_FORCEINLINE __forceinline
   603  #  elif defined(__GNUC__) && __GNUC__ > 3
   604       // Clang also defines __GNUC__ (as 4)
   605  #    define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__))
   606  #  else
   607  #    define BOOST_FORCEINLINE inline
   608  #  endif
   609  #endif
   610  
   611  // BOOST_NOINLINE ---------------------------------------------//
   612  // Macro to use in place of 'inline' to prevent a function to be inlined
   613  #if !defined(BOOST_NOINLINE)
   614  #  if defined(_MSC_VER)
   615  #    define BOOST_NOINLINE __declspec(noinline)
   616  #  elif defined(__GNUC__) && __GNUC__ > 3
   617       // Clang also defines __GNUC__ (as 4)
   618  #    if defined(__CUDACC__)
   619         // nvcc doesn't always parse __noinline__,
   620         // see: https://svn.boost.org/trac/boost/ticket/9392
   621  #      define BOOST_NOINLINE __attribute__ ((noinline))
   622  #    else
   623  #      define BOOST_NOINLINE __attribute__ ((__noinline__))
   624  #    endif
   625  #  else
   626  #    define BOOST_NOINLINE
   627  #  endif
   628  #endif
   629  
   630  // BOOST_NORETURN ---------------------------------------------//
   631  // Macro to use before a function declaration/definition to designate
   632  // the function as not returning normally (i.e. with a return statement
   633  // or by leaving the function scope, if the function return type is void).
   634  #if !defined(BOOST_NORETURN)
   635  #  if defined(_MSC_VER)
   636  #    define BOOST_NORETURN __declspec(noreturn)
   637  #  elif defined(__GNUC__)
   638  #    define BOOST_NORETURN __attribute__ ((__noreturn__))
   639  #  elif defined(__has_attribute) && defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x5130)
   640  #    if __has_attribute(noreturn)
   641  #      define BOOST_NORETURN [[noreturn]]
   642  #    endif
   643  #  elif defined(__has_cpp_attribute) 
   644  #    if __has_cpp_attribute(noreturn)
   645  #      define BOOST_NORETURN [[noreturn]]
   646  #    endif
   647  #  endif
   648  #endif
   649  
   650  #if !defined(BOOST_NORETURN)
   651  #  define BOOST_NO_NORETURN
   652  #  define BOOST_NORETURN
   653  #endif
   654  
   655  // Branch prediction hints
   656  // These macros are intended to wrap conditional expressions that yield true or false
   657  //
   658  //  if (BOOST_LIKELY(var == 10))
   659  //  {
   660  //     // the most probable code here
   661  //  }
   662  //
   663  #if !defined(BOOST_LIKELY)
   664  #  define BOOST_LIKELY(x) x
   665  #endif
   666  #if !defined(BOOST_UNLIKELY)
   667  #  define BOOST_UNLIKELY(x) x
   668  #endif
   669  
   670  // Type and data alignment specification
   671  //
   672  #if !defined(BOOST_ALIGNMENT)
   673  #  if !defined(BOOST_NO_CXX11_ALIGNAS)
   674  #    define BOOST_ALIGNMENT(x) alignas(x)
   675  #  elif defined(_MSC_VER)
   676  #    define BOOST_ALIGNMENT(x) __declspec(align(x))
   677  #  elif defined(__GNUC__)
   678  #    define BOOST_ALIGNMENT(x) __attribute__ ((__aligned__(x)))
   679  #  else
   680  #    define BOOST_NO_ALIGNMENT
   681  #    define BOOST_ALIGNMENT(x)
   682  #  endif
   683  #endif
   684  
   685  // Lack of non-public defaulted functions is implied by the lack of any defaulted functions
   686  #if !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS) && defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS)
   687  #  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
   688  #endif
   689  
   690  // Lack of defaulted moves is implied by the lack of either rvalue references or any defaulted functions
   691  #if !defined(BOOST_NO_CXX11_DEFAULTED_MOVES) && (defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || defined(BOOST_NO_CXX11_RVALUE_REFERENCES))
   692  #  define BOOST_NO_CXX11_DEFAULTED_MOVES
   693  #endif
   694  
   695  // Defaulted and deleted function declaration helpers
   696  // These macros are intended to be inside a class definition.
   697  // BOOST_DEFAULTED_FUNCTION accepts the function declaration and its
   698  // body, which will be used if the compiler doesn't support defaulted functions.
   699  // BOOST_DELETED_FUNCTION only accepts the function declaration. It
   700  // will expand to a private function declaration, if the compiler doesn't support
   701  // deleted functions. Because of this it is recommended to use BOOST_DELETED_FUNCTION
   702  // in the end of the class definition.
   703  //
   704  //  class my_class
   705  //  {
   706  //  public:
   707  //      // Default-constructible
   708  //      BOOST_DEFAULTED_FUNCTION(my_class(), {})
   709  //      // Copying prohibited
   710  //      BOOST_DELETED_FUNCTION(my_class(my_class const&))
   711  //      BOOST_DELETED_FUNCTION(my_class& operator= (my_class const&))
   712  //  };
   713  //
   714  #if !(defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS))
   715  #   define BOOST_DEFAULTED_FUNCTION(fun, body) fun = default;
   716  #else
   717  #   define BOOST_DEFAULTED_FUNCTION(fun, body) fun body
   718  #endif
   719  
   720  #if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
   721  #   define BOOST_DELETED_FUNCTION(fun) fun = delete;
   722  #else
   723  #   define BOOST_DELETED_FUNCTION(fun) private: fun;
   724  #endif
   725  
   726  //
   727  // Set BOOST_NO_DECLTYPE_N3276 when BOOST_NO_DECLTYPE is defined
   728  //
   729  #if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_CXX11_DECLTYPE_N3276)
   730  #define BOOST_NO_CXX11_DECLTYPE_N3276 BOOST_NO_CXX11_DECLTYPE
   731  #endif
   732  
   733  //  -------------------- Deprecated macros for 1.50 ---------------------------
   734  //  These will go away in a future release
   735  
   736  //  Use BOOST_NO_CXX11_HDR_UNORDERED_SET or BOOST_NO_CXX11_HDR_UNORDERED_MAP
   737  //           instead of BOOST_NO_STD_UNORDERED
   738  #if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) || defined (BOOST_NO_CXX11_HDR_UNORDERED_SET)
   739  # ifndef BOOST_NO_CXX11_STD_UNORDERED
   740  #  define BOOST_NO_CXX11_STD_UNORDERED
   741  # endif
   742  #endif
   743  
   744  //  Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST instead of BOOST_NO_INITIALIZER_LISTS
   745  #if defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) && !defined(BOOST_NO_INITIALIZER_LISTS)
   746  #  define BOOST_NO_INITIALIZER_LISTS
   747  #endif
   748  
   749  //  Use BOOST_NO_CXX11_HDR_ARRAY instead of BOOST_NO_0X_HDR_ARRAY
   750  #if defined(BOOST_NO_CXX11_HDR_ARRAY) && !defined(BOOST_NO_0X_HDR_ARRAY)
   751  #  define BOOST_NO_0X_HDR_ARRAY
   752  #endif
   753  //  Use BOOST_NO_CXX11_HDR_CHRONO instead of BOOST_NO_0X_HDR_CHRONO
   754  #if defined(BOOST_NO_CXX11_HDR_CHRONO) && !defined(BOOST_NO_0X_HDR_CHRONO)
   755  #  define BOOST_NO_0X_HDR_CHRONO
   756  #endif
   757  //  Use BOOST_NO_CXX11_HDR_CODECVT instead of BOOST_NO_0X_HDR_CODECVT
   758  #if defined(BOOST_NO_CXX11_HDR_CODECVT) && !defined(BOOST_NO_0X_HDR_CODECVT)
   759  #  define BOOST_NO_0X_HDR_CODECVT
   760  #endif
   761  //  Use BOOST_NO_CXX11_HDR_CONDITION_VARIABLE instead of BOOST_NO_0X_HDR_CONDITION_VARIABLE
   762  #if defined(BOOST_NO_CXX11_HDR_CONDITION_VARIABLE) && !defined(BOOST_NO_0X_HDR_CONDITION_VARIABLE)
   763  #  define BOOST_NO_0X_HDR_CONDITION_VARIABLE
   764  #endif
   765  //  Use BOOST_NO_CXX11_HDR_FORWARD_LIST instead of BOOST_NO_0X_HDR_FORWARD_LIST
   766  #if defined(BOOST_NO_CXX11_HDR_FORWARD_LIST) && !defined(BOOST_NO_0X_HDR_FORWARD_LIST)
   767  #  define BOOST_NO_0X_HDR_FORWARD_LIST
   768  #endif
   769  //  Use BOOST_NO_CXX11_HDR_FUTURE instead of BOOST_NO_0X_HDR_FUTURE
   770  #if defined(BOOST_NO_CXX11_HDR_FUTURE) && !defined(BOOST_NO_0X_HDR_FUTURE)
   771  #  define BOOST_NO_0X_HDR_FUTURE
   772  #endif
   773  
   774  //  Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST
   775  //  instead of BOOST_NO_0X_HDR_INITIALIZER_LIST or BOOST_NO_INITIALIZER_LISTS
   776  #ifdef BOOST_NO_CXX11_HDR_INITIALIZER_LIST
   777  # ifndef BOOST_NO_0X_HDR_INITIALIZER_LIST
   778  #  define BOOST_NO_0X_HDR_INITIALIZER_LIST
   779  # endif
   780  # ifndef BOOST_NO_INITIALIZER_LISTS
   781  #  define BOOST_NO_INITIALIZER_LISTS
   782  # endif
   783  #endif
   784  
   785  //  Use BOOST_NO_CXX11_HDR_MUTEX instead of BOOST_NO_0X_HDR_MUTEX
   786  #if defined(BOOST_NO_CXX11_HDR_MUTEX) && !defined(BOOST_NO_0X_HDR_MUTEX)
   787  #  define BOOST_NO_0X_HDR_MUTEX
   788  #endif
   789  //  Use BOOST_NO_CXX11_HDR_RANDOM instead of BOOST_NO_0X_HDR_RANDOM
   790  #if defined(BOOST_NO_CXX11_HDR_RANDOM) && !defined(BOOST_NO_0X_HDR_RANDOM)
   791  #  define BOOST_NO_0X_HDR_RANDOM
   792  #endif
   793  //  Use BOOST_NO_CXX11_HDR_RATIO instead of BOOST_NO_0X_HDR_RATIO
   794  #if defined(BOOST_NO_CXX11_HDR_RATIO) && !defined(BOOST_NO_0X_HDR_RATIO)
   795  #  define BOOST_NO_0X_HDR_RATIO
   796  #endif
   797  //  Use BOOST_NO_CXX11_HDR_REGEX instead of BOOST_NO_0X_HDR_REGEX
   798  #if defined(BOOST_NO_CXX11_HDR_REGEX) && !defined(BOOST_NO_0X_HDR_REGEX)
   799  #  define BOOST_NO_0X_HDR_REGEX
   800  #endif
   801  //  Use BOOST_NO_CXX11_HDR_SYSTEM_ERROR instead of BOOST_NO_0X_HDR_SYSTEM_ERROR
   802  #if defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR) && !defined(BOOST_NO_0X_HDR_SYSTEM_ERROR)
   803  #  define BOOST_NO_0X_HDR_SYSTEM_ERROR
   804  #endif
   805  //  Use BOOST_NO_CXX11_HDR_THREAD instead of BOOST_NO_0X_HDR_THREAD
   806  #if defined(BOOST_NO_CXX11_HDR_THREAD) && !defined(BOOST_NO_0X_HDR_THREAD)
   807  #  define BOOST_NO_0X_HDR_THREAD
   808  #endif
   809  //  Use BOOST_NO_CXX11_HDR_TUPLE instead of BOOST_NO_0X_HDR_TUPLE
   810  #if defined(BOOST_NO_CXX11_HDR_TUPLE) && !defined(BOOST_NO_0X_HDR_TUPLE)
   811  #  define BOOST_NO_0X_HDR_TUPLE
   812  #endif
   813  //  Use BOOST_NO_CXX11_HDR_TYPE_TRAITS instead of BOOST_NO_0X_HDR_TYPE_TRAITS
   814  #if defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS) && !defined(BOOST_NO_0X_HDR_TYPE_TRAITS)
   815  #  define BOOST_NO_0X_HDR_TYPE_TRAITS
   816  #endif
   817  //  Use BOOST_NO_CXX11_HDR_TYPEINDEX instead of BOOST_NO_0X_HDR_TYPEINDEX
   818  #if defined(BOOST_NO_CXX11_HDR_TYPEINDEX) && !defined(BOOST_NO_0X_HDR_TYPEINDEX)
   819  #  define BOOST_NO_0X_HDR_TYPEINDEX
   820  #endif
   821  //  Use BOOST_NO_CXX11_HDR_UNORDERED_MAP instead of BOOST_NO_0X_HDR_UNORDERED_MAP
   822  #if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) && !defined(BOOST_NO_0X_HDR_UNORDERED_MAP)
   823  #  define BOOST_NO_0X_HDR_UNORDERED_MAP
   824  #endif
   825  //  Use BOOST_NO_CXX11_HDR_UNORDERED_SET instead of BOOST_NO_0X_HDR_UNORDERED_SET
   826  #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) && !defined(BOOST_NO_0X_HDR_UNORDERED_SET)
   827  #  define BOOST_NO_0X_HDR_UNORDERED_SET
   828  #endif
   829  
   830  //  ------------------ End of deprecated macros for 1.50 ---------------------------
   831  
   832  //  -------------------- Deprecated macros for 1.51 ---------------------------
   833  //  These will go away in a future release
   834  
   835  //  Use     BOOST_NO_CXX11_AUTO_DECLARATIONS instead of   BOOST_NO_AUTO_DECLARATIONS
   836  #if defined(BOOST_NO_CXX11_AUTO_DECLARATIONS) && !defined(BOOST_NO_AUTO_DECLARATIONS)
   837  #  define BOOST_NO_AUTO_DECLARATIONS
   838  #endif
   839  //  Use     BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS instead of   BOOST_NO_AUTO_MULTIDECLARATIONS
   840  #if defined(BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS) && !defined(BOOST_NO_AUTO_MULTIDECLARATIONS)
   841  #  define BOOST_NO_AUTO_MULTIDECLARATIONS
   842  #endif
   843  //  Use     BOOST_NO_CXX11_CHAR16_T instead of   BOOST_NO_CHAR16_T
   844  #if defined(BOOST_NO_CXX11_CHAR16_T) && !defined(BOOST_NO_CHAR16_T)
   845  #  define BOOST_NO_CHAR16_T
   846  #endif
   847  //  Use     BOOST_NO_CXX11_CHAR32_T instead of   BOOST_NO_CHAR32_T
   848  #if defined(BOOST_NO_CXX11_CHAR32_T) && !defined(BOOST_NO_CHAR32_T)
   849  #  define BOOST_NO_CHAR32_T
   850  #endif
   851  //  Use     BOOST_NO_CXX11_TEMPLATE_ALIASES instead of   BOOST_NO_TEMPLATE_ALIASES
   852  #if defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) && !defined(BOOST_NO_TEMPLATE_ALIASES)
   853  #  define BOOST_NO_TEMPLATE_ALIASES
   854  #endif
   855  //  Use     BOOST_NO_CXX11_CONSTEXPR instead of   BOOST_NO_CONSTEXPR
   856  #if defined(BOOST_NO_CXX11_CONSTEXPR) && !defined(BOOST_NO_CONSTEXPR)
   857  #  define BOOST_NO_CONSTEXPR
   858  #endif
   859  //  Use     BOOST_NO_CXX11_DECLTYPE_N3276 instead of   BOOST_NO_DECLTYPE_N3276
   860  #if defined(BOOST_NO_CXX11_DECLTYPE_N3276) && !defined(BOOST_NO_DECLTYPE_N3276)
   861  #  define BOOST_NO_DECLTYPE_N3276
   862  #endif
   863  //  Use     BOOST_NO_CXX11_DECLTYPE instead of   BOOST_NO_DECLTYPE
   864  #if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_DECLTYPE)
   865  #  define BOOST_NO_DECLTYPE
   866  #endif
   867  //  Use     BOOST_NO_CXX11_DEFAULTED_FUNCTIONS instead of   BOOST_NO_DEFAULTED_FUNCTIONS
   868  #if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_DEFAULTED_FUNCTIONS)
   869  #  define BOOST_NO_DEFAULTED_FUNCTIONS
   870  #endif
   871  //  Use     BOOST_NO_CXX11_DELETED_FUNCTIONS instead of   BOOST_NO_DELETED_FUNCTIONS
   872  #if defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) && !defined(BOOST_NO_DELETED_FUNCTIONS)
   873  #  define BOOST_NO_DELETED_FUNCTIONS
   874  #endif
   875  //  Use     BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS instead of   BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
   876  #if defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS) && !defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATORS)
   877  #  define BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
   878  #endif
   879  //  Use     BOOST_NO_CXX11_EXTERN_TEMPLATE instead of   BOOST_NO_EXTERN_TEMPLATE
   880  #if defined(BOOST_NO_CXX11_EXTERN_TEMPLATE) && !defined(BOOST_NO_EXTERN_TEMPLATE)
   881  #  define BOOST_NO_EXTERN_TEMPLATE
   882  #endif
   883  //  Use     BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS instead of   BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
   884  #if defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) && !defined(BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS)
   885  #  define BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
   886  #endif
   887  //  Use     BOOST_NO_CXX11_LAMBDAS instead of   BOOST_NO_LAMBDAS
   888  #if defined(BOOST_NO_CXX11_LAMBDAS) && !defined(BOOST_NO_LAMBDAS)
   889  #  define BOOST_NO_LAMBDAS
   890  #endif
   891  //  Use     BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS instead of   BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
   892  #if defined(BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS) && !defined(BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS)
   893  #  define BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
   894  #endif
   895  //  Use     BOOST_NO_CXX11_NOEXCEPT instead of   BOOST_NO_NOEXCEPT
   896  #if defined(BOOST_NO_CXX11_NOEXCEPT) && !defined(BOOST_NO_NOEXCEPT)
   897  #  define BOOST_NO_NOEXCEPT
   898  #endif
   899  //  Use     BOOST_NO_CXX11_NULLPTR instead of   BOOST_NO_NULLPTR
   900  #if defined(BOOST_NO_CXX11_NULLPTR) && !defined(BOOST_NO_NULLPTR)
   901  #  define BOOST_NO_NULLPTR
   902  #endif
   903  //  Use     BOOST_NO_CXX11_RAW_LITERALS instead of   BOOST_NO_RAW_LITERALS
   904  #if defined(BOOST_NO_CXX11_RAW_LITERALS) && !defined(BOOST_NO_RAW_LITERALS)
   905  #  define BOOST_NO_RAW_LITERALS
   906  #endif
   907  //  Use     BOOST_NO_CXX11_RVALUE_REFERENCES instead of   BOOST_NO_RVALUE_REFERENCES
   908  #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_RVALUE_REFERENCES)
   909  #  define BOOST_NO_RVALUE_REFERENCES
   910  #endif
   911  //  Use     BOOST_NO_CXX11_SCOPED_ENUMS instead of   BOOST_NO_SCOPED_ENUMS
   912  #if defined(BOOST_NO_CXX11_SCOPED_ENUMS) && !defined(BOOST_NO_SCOPED_ENUMS)
   913  #  define BOOST_NO_SCOPED_ENUMS
   914  #endif
   915  //  Use     BOOST_NO_CXX11_STATIC_ASSERT instead of   BOOST_NO_STATIC_ASSERT
   916  #if defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_NO_STATIC_ASSERT)
   917  #  define BOOST_NO_STATIC_ASSERT
   918  #endif
   919  //  Use     BOOST_NO_CXX11_STD_UNORDERED instead of   BOOST_NO_STD_UNORDERED
   920  #if defined(BOOST_NO_CXX11_STD_UNORDERED) && !defined(BOOST_NO_STD_UNORDERED)
   921  #  define BOOST_NO_STD_UNORDERED
   922  #endif
   923  //  Use     BOOST_NO_CXX11_UNICODE_LITERALS instead of   BOOST_NO_UNICODE_LITERALS
   924  #if defined(BOOST_NO_CXX11_UNICODE_LITERALS) && !defined(BOOST_NO_UNICODE_LITERALS)
   925  #  define BOOST_NO_UNICODE_LITERALS
   926  #endif
   927  //  Use     BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX instead of   BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
   928  #if defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX) && !defined(BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX)
   929  #  define BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
   930  #endif
   931  //  Use     BOOST_NO_CXX11_VARIADIC_TEMPLATES instead of   BOOST_NO_VARIADIC_TEMPLATES
   932  #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_VARIADIC_TEMPLATES)
   933  #  define BOOST_NO_VARIADIC_TEMPLATES
   934  #endif
   935  //  Use     BOOST_NO_CXX11_VARIADIC_MACROS instead of   BOOST_NO_VARIADIC_MACROS
   936  #if defined(BOOST_NO_CXX11_VARIADIC_MACROS) && !defined(BOOST_NO_VARIADIC_MACROS)
   937  #  define BOOST_NO_VARIADIC_MACROS
   938  #endif
   939  //  Use     BOOST_NO_CXX11_NUMERIC_LIMITS instead of   BOOST_NO_NUMERIC_LIMITS_LOWEST
   940  #if defined(BOOST_NO_CXX11_NUMERIC_LIMITS) && !defined(BOOST_NO_NUMERIC_LIMITS_LOWEST)
   941  #  define BOOST_NO_NUMERIC_LIMITS_LOWEST
   942  #endif
   943  //  ------------------ End of deprecated macros for 1.51 ---------------------------
   944  
   945  
   946  
   947  //
   948  // Helper macros BOOST_NOEXCEPT, BOOST_NOEXCEPT_IF, BOOST_NOEXCEPT_EXPR
   949  // These aid the transition to C++11 while still supporting C++03 compilers
   950  //
   951  #ifdef BOOST_NO_CXX11_NOEXCEPT
   952  #  define BOOST_NOEXCEPT
   953  #  define BOOST_NOEXCEPT_OR_NOTHROW throw()
   954  #  define BOOST_NOEXCEPT_IF(Predicate)
   955  #  define BOOST_NOEXCEPT_EXPR(Expression) false
   956  #else
   957  #  define BOOST_NOEXCEPT noexcept
   958  #  define BOOST_NOEXCEPT_OR_NOTHROW noexcept
   959  #  define BOOST_NOEXCEPT_IF(Predicate) noexcept((Predicate))
   960  #  define BOOST_NOEXCEPT_EXPR(Expression) noexcept((Expression))
   961  #endif
   962  //
   963  // Helper macro BOOST_FALLTHROUGH
   964  // Fallback definition of BOOST_FALLTHROUGH macro used to mark intended
   965  // fall-through between case labels in a switch statement. We use a definition
   966  // that requires a semicolon after it to avoid at least one type of misuse even
   967  // on unsupported compilers.
   968  //
   969  #ifndef BOOST_FALLTHROUGH
   970  #  define BOOST_FALLTHROUGH ((void)0)
   971  #endif
   972  
   973  //
   974  // constexpr workarounds
   975  //
   976  #if defined(BOOST_NO_CXX11_CONSTEXPR)
   977  #define BOOST_CONSTEXPR
   978  #define BOOST_CONSTEXPR_OR_CONST const
   979  #else
   980  #define BOOST_CONSTEXPR constexpr
   981  #define BOOST_CONSTEXPR_OR_CONST constexpr
   982  #endif
   983  #if defined(BOOST_NO_CXX14_CONSTEXPR)
   984  #define BOOST_CXX14_CONSTEXPR
   985  #else
   986  #define BOOST_CXX14_CONSTEXPR constexpr
   987  #endif
   988  
   989  //
   990  // Unused variable/typedef workarounds:
   991  //
   992  #ifndef BOOST_ATTRIBUTE_UNUSED
   993  #  define BOOST_ATTRIBUTE_UNUSED
   994  #endif
   995  //
   996  // [[nodiscard]]:
   997  //
   998  #ifdef __has_cpp_attribute
   999  #if __has_cpp_attribute(nodiscard)
  1000  # define BOOST_ATTRIBUTE_NODISCARD [[nodiscard]]
  1001  #endif
  1002  #if __has_cpp_attribute(no_unique_address) && !(defined(__GNUC__) && (__cplusplus < 201100))
  1003  # define BOOST_ATTRIBUTE_NO_UNIQUE_ADDRESS [[no_unique_address]]
  1004  #endif
  1005  #endif
  1006  #ifndef BOOST_ATTRIBUTE_NODISCARD
  1007  # define BOOST_ATTRIBUTE_NODISCARD
  1008  #endif
  1009  #ifndef BOOST_ATTRIBUTE_NO_UNIQUE_ADDRESS
  1010  # define BOOST_ATTRIBUTE_NO_UNIQUE_ADDRESS
  1011  #endif
  1012  
  1013  #define BOOST_STATIC_CONSTEXPR  static BOOST_CONSTEXPR_OR_CONST
  1014  
  1015  //
  1016  // Set BOOST_HAS_STATIC_ASSERT when BOOST_NO_CXX11_STATIC_ASSERT is not defined
  1017  //
  1018  #if !defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_HAS_STATIC_ASSERT)
  1019  #  define BOOST_HAS_STATIC_ASSERT
  1020  #endif
  1021  
  1022  //
  1023  // Set BOOST_HAS_RVALUE_REFS when BOOST_NO_CXX11_RVALUE_REFERENCES is not defined
  1024  //
  1025  #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_HAS_RVALUE_REFS)
  1026  #define BOOST_HAS_RVALUE_REFS
  1027  #endif
  1028  
  1029  //
  1030  // Set BOOST_HAS_VARIADIC_TMPL when BOOST_NO_CXX11_VARIADIC_TEMPLATES is not defined
  1031  //
  1032  #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_HAS_VARIADIC_TMPL)
  1033  #define BOOST_HAS_VARIADIC_TMPL
  1034  #endif
  1035  //
  1036  // Set BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS when
  1037  // BOOST_NO_CXX11_VARIADIC_TEMPLATES is set:
  1038  //
  1039  #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS)
  1040  #  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
  1041  #endif
  1042  
  1043  // This is a catch all case for obsolete compilers / std libs:
  1044  #if !defined(__has_include)
  1045  #  define BOOST_NO_CXX17_HDR_OPTIONAL
  1046  #  define BOOST_NO_CXX17_HDR_STRING_VIEW
  1047  #  define BOOST_NO_CXX17_HDR_VARIANT
  1048  #else
  1049  #if !__has_include(<optional>)
  1050  #  define BOOST_NO_CXX17_HDR_OPTIONAL
  1051  #endif
  1052  #if !__has_include(<string_view>)
  1053  #  define BOOST_NO_CXX17_HDR_STRING_VIEW
  1054  #endif
  1055  #if !__has_include(<variant>)
  1056  #  define BOOST_NO_CXX17_HDR_VARIANT
  1057  #endif
  1058  #endif
  1059  
  1060  //
  1061  // Finish off with checks for macros that are depricated / no longer supported,
  1062  // if any of these are set then it's very likely that much of Boost will no
  1063  // longer work.  So stop with a #error for now, but give the user a chance
  1064  // to continue at their own risk if they really want to:
  1065  //
  1066  #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_CONFIG_ALLOW_DEPRECATED)
  1067  #  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!!!"
  1068  #endif
  1069  
  1070  #endif