Squashed 'third_party/boostorg/config/' content from commit bb3c8a2
Change-Id: I20e82d188260045e00478e35813b54ca7fda6eaf
git-subtree-dir: third_party/boostorg/config
git-subtree-split: bb3c8a20dcb3a97e0c999a5869305398fa6d8a11
diff --git a/include/boost/config/detail/suffix.hpp b/include/boost/config/detail/suffix.hpp
new file mode 100644
index 0000000..22d31f6
--- /dev/null
+++ b/include/boost/config/detail/suffix.hpp
@@ -0,0 +1,1036 @@
+// Boost config.hpp configuration header file ------------------------------//
+// boostinspect:ndprecated_macros -- tell the inspect tool to ignore this file
+
+// Copyright (c) 2001-2003 John Maddock
+// Copyright (c) 2001 Darin Adler
+// Copyright (c) 2001 Peter Dimov
+// Copyright (c) 2002 Bill Kempf
+// Copyright (c) 2002 Jens Maurer
+// Copyright (c) 2002-2003 David Abrahams
+// Copyright (c) 2003 Gennaro Prota
+// Copyright (c) 2003 Eric Friedman
+// Copyright (c) 2010 Eric Jourdanneau, Joel Falcou
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// See http://www.boost.org/ for most recent version.
+
+// Boost config.hpp policy and rationale documentation has been moved to
+// http://www.boost.org/libs/config/
+//
+// This file is intended to be stable, and relatively unchanging.
+// It should contain boilerplate code only - no compiler specific
+// code unless it is unavoidable - no changes unless unavoidable.
+
+#ifndef BOOST_CONFIG_SUFFIX_HPP
+#define BOOST_CONFIG_SUFFIX_HPP
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+//
+// Some GCC-4.x versions issue warnings even when __extension__ is used,
+// so use this as a workaround:
+//
+#pragma GCC system_header
+#endif
+
+//
+// ensure that visibility macros are always defined, thus symplifying use
+//
+#ifndef BOOST_SYMBOL_EXPORT
+# define BOOST_SYMBOL_EXPORT
+#endif
+#ifndef BOOST_SYMBOL_IMPORT
+# define BOOST_SYMBOL_IMPORT
+#endif
+#ifndef BOOST_SYMBOL_VISIBLE
+# define BOOST_SYMBOL_VISIBLE
+#endif
+
+//
+// look for long long by looking for the appropriate macros in <limits.h>.
+// Note that we use limits.h rather than climits for maximal portability,
+// remember that since these just declare a bunch of macros, there should be
+// no namespace issues from this.
+//
+#if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG) \
+ && !defined(BOOST_MSVC) && !defined(__BORLANDC__)
+# include <limits.h>
+# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
+# define BOOST_HAS_LONG_LONG
+# else
+# define BOOST_NO_LONG_LONG
+# endif
+#endif
+
+// GCC 3.x will clean up all of those nasty macro definitions that
+// BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine
+// it under GCC 3.x.
+#if defined(__GNUC__) && (__GNUC__ >= 3) && defined(BOOST_NO_CTYPE_FUNCTIONS)
+# undef BOOST_NO_CTYPE_FUNCTIONS
+#endif
+
+//
+// Assume any extensions are in namespace std:: unless stated otherwise:
+//
+# ifndef BOOST_STD_EXTENSION_NAMESPACE
+# define BOOST_STD_EXTENSION_NAMESPACE std
+# endif
+
+//
+// If cv-qualified specializations are not allowed, then neither are cv-void ones:
+//
+# if defined(BOOST_NO_CV_SPECIALIZATIONS) \
+ && !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
+# define BOOST_NO_CV_VOID_SPECIALIZATIONS
+# endif
+
+//
+// If there is no numeric_limits template, then it can't have any compile time
+// constants either!
+//
+# if defined(BOOST_NO_LIMITS) \
+ && !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS)
+# define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+# define BOOST_NO_MS_INT64_NUMERIC_LIMITS
+# define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
+# endif
+
+//
+// if there is no long long then there is no specialisation
+// for numeric_limits<long long> either:
+//
+#if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)
+# define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
+#endif
+
+//
+// if there is no __int64 then there is no specialisation
+// for numeric_limits<__int64> either:
+//
+#if !defined(BOOST_HAS_MS_INT64) && !defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS)
+# define BOOST_NO_MS_INT64_NUMERIC_LIMITS
+#endif
+
+//
+// if member templates are supported then so is the
+// VC6 subset of member templates:
+//
+# if !defined(BOOST_NO_MEMBER_TEMPLATES) \
+ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
+# define BOOST_MSVC6_MEMBER_TEMPLATES
+# endif
+
+//
+// Without partial specialization, can't test for partial specialisation bugs:
+//
+# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG)
+# define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
+# endif
+
+//
+// Without partial specialization, we can't have array-type partial specialisations:
+//
+# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
+# define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS
+# endif
+
+//
+// Without partial specialization, std::iterator_traits can't work:
+//
+# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
+# define BOOST_NO_STD_ITERATOR_TRAITS
+# endif
+
+//
+// Without partial specialization, partial
+// specialization with default args won't work either:
+//
+# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
+# define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
+# endif
+
+//
+// Without member template support, we can't have template constructors
+// in the standard library either:
+//
+# if defined(BOOST_NO_MEMBER_TEMPLATES) \
+ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
+ && !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
+# define BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS
+# endif
+
+//
+// Without member template support, we can't have a conforming
+// std::allocator template either:
+//
+# if defined(BOOST_NO_MEMBER_TEMPLATES) \
+ && !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
+ && !defined(BOOST_NO_STD_ALLOCATOR)
+# define BOOST_NO_STD_ALLOCATOR
+# endif
+
+//
+// without ADL support then using declarations will break ADL as well:
+//
+#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
+# define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#endif
+
+//
+// Without typeid support we have no dynamic RTTI either:
+//
+#if defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI)
+# define BOOST_NO_RTTI
+#endif
+
+//
+// If we have a standard allocator, then we have a partial one as well:
+//
+#if !defined(BOOST_NO_STD_ALLOCATOR)
+# define BOOST_HAS_PARTIAL_STD_ALLOCATOR
+#endif
+
+//
+// We can't have a working std::use_facet if there is no std::locale:
+//
+# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_USE_FACET)
+# define BOOST_NO_STD_USE_FACET
+# endif
+
+//
+// We can't have a std::messages facet if there is no std::locale:
+//
+# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_MESSAGES)
+# define BOOST_NO_STD_MESSAGES
+# endif
+
+//
+// We can't have a working std::wstreambuf if there is no std::locale:
+//
+# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF)
+# define BOOST_NO_STD_WSTREAMBUF
+# endif
+
+//
+// We can't have a <cwctype> if there is no <cwchar>:
+//
+# if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_CWCTYPE)
+# define BOOST_NO_CWCTYPE
+# endif
+
+//
+// We can't have a swprintf if there is no <cwchar>:
+//
+# if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_SWPRINTF)
+# define BOOST_NO_SWPRINTF
+# endif
+
+//
+// If Win32 support is turned off, then we must turn off
+// threading support also, unless there is some other
+// thread API enabled:
+//
+#if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \
+ && !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS)
+# define BOOST_DISABLE_THREADS
+#endif
+
+//
+// Turn on threading support if the compiler thinks that it's in
+// multithreaded mode. We put this here because there are only a
+// limited number of macros that identify this (if there's any missing
+// from here then add to the appropriate compiler section):
+//
+#if (defined(__MT__) || defined(_MT) || defined(_REENTRANT) \
+ || defined(_PTHREADS) || defined(__APPLE__) || defined(__DragonFly__)) \
+ && !defined(BOOST_HAS_THREADS)
+# define BOOST_HAS_THREADS
+#endif
+
+//
+// Turn threading support off if BOOST_DISABLE_THREADS is defined:
+//
+#if defined(BOOST_DISABLE_THREADS) && defined(BOOST_HAS_THREADS)
+# undef BOOST_HAS_THREADS
+#endif
+
+//
+// Turn threading support off if we don't recognise the threading API:
+//
+#if defined(BOOST_HAS_THREADS) && !defined(BOOST_HAS_PTHREADS)\
+ && !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_BETHREADS)\
+ && !defined(BOOST_HAS_MPTASKS)
+# undef BOOST_HAS_THREADS
+#endif
+
+//
+// Turn threading detail macros off if we don't (want to) use threading
+//
+#ifndef BOOST_HAS_THREADS
+# undef BOOST_HAS_PTHREADS
+# undef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+# undef BOOST_HAS_PTHREAD_YIELD
+# undef BOOST_HAS_PTHREAD_DELAY_NP
+# undef BOOST_HAS_WINTHREADS
+# undef BOOST_HAS_BETHREADS
+# undef BOOST_HAS_MPTASKS
+#endif
+
+//
+// If the compiler claims to be C99 conformant, then it had better
+// have a <stdint.h>:
+//
+# if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
+# define BOOST_HAS_STDINT_H
+# ifndef BOOST_HAS_LOG1P
+# define BOOST_HAS_LOG1P
+# endif
+# ifndef BOOST_HAS_EXPM1
+# define BOOST_HAS_EXPM1
+# endif
+# endif
+
+//
+// Define BOOST_NO_SLIST and BOOST_NO_HASH if required.
+// Note that this is for backwards compatibility only.
+//
+# if !defined(BOOST_HAS_SLIST) && !defined(BOOST_NO_SLIST)
+# define BOOST_NO_SLIST
+# endif
+
+# if !defined(BOOST_HAS_HASH) && !defined(BOOST_NO_HASH)
+# define BOOST_NO_HASH
+# endif
+
+//
+// Set BOOST_SLIST_HEADER if not set already:
+//
+#if defined(BOOST_HAS_SLIST) && !defined(BOOST_SLIST_HEADER)
+# define BOOST_SLIST_HEADER <slist>
+#endif
+
+//
+// Set BOOST_HASH_SET_HEADER if not set already:
+//
+#if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_SET_HEADER)
+# define BOOST_HASH_SET_HEADER <hash_set>
+#endif
+
+//
+// Set BOOST_HASH_MAP_HEADER if not set already:
+//
+#if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_MAP_HEADER)
+# define BOOST_HASH_MAP_HEADER <hash_map>
+#endif
+
+// BOOST_HAS_ABI_HEADERS
+// This macro gets set if we have headers that fix the ABI,
+// and prevent ODR violations when linking to external libraries:
+#if defined(BOOST_ABI_PREFIX) && defined(BOOST_ABI_SUFFIX) && !defined(BOOST_HAS_ABI_HEADERS)
+# define BOOST_HAS_ABI_HEADERS
+#endif
+
+#if defined(BOOST_HAS_ABI_HEADERS) && defined(BOOST_DISABLE_ABI_HEADERS)
+# undef BOOST_HAS_ABI_HEADERS
+#endif
+
+// BOOST_NO_STDC_NAMESPACE workaround --------------------------------------//
+// Because std::size_t usage is so common, even in boost headers which do not
+// otherwise use the C library, the <cstddef> workaround is included here so
+// that ugly workaround code need not appear in many other boost headers.
+// NOTE WELL: This is a workaround for non-conforming compilers; <cstddef>
+// must still be #included in the usual places so that <cstddef> inclusion
+// works as expected with standard conforming compilers. The resulting
+// double inclusion of <cstddef> is harmless.
+
+# if defined(BOOST_NO_STDC_NAMESPACE) && defined(__cplusplus)
+# include <cstddef>
+ namespace std { using ::ptrdiff_t; using ::size_t; }
+# endif
+
+// Workaround for the unfortunate min/max macros defined by some platform headers
+
+#define BOOST_PREVENT_MACRO_SUBSTITUTION
+
+#ifndef BOOST_USING_STD_MIN
+# define BOOST_USING_STD_MIN() using std::min
+#endif
+
+#ifndef BOOST_USING_STD_MAX
+# define BOOST_USING_STD_MAX() using std::max
+#endif
+
+// BOOST_NO_STD_MIN_MAX workaround -----------------------------------------//
+
+# if defined(BOOST_NO_STD_MIN_MAX) && defined(__cplusplus)
+
+namespace std {
+ template <class _Tp>
+ inline const _Tp& min BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
+ return __b < __a ? __b : __a;
+ }
+ template <class _Tp>
+ inline const _Tp& max BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
+ return __a < __b ? __b : __a;
+ }
+}
+
+# endif
+
+// BOOST_STATIC_CONSTANT workaround --------------------------------------- //
+// On compilers which don't allow in-class initialization of static integral
+// constant members, we must use enums as a workaround if we want the constants
+// to be available at compile-time. This macro gives us a convenient way to
+// declare such constants.
+
+# ifdef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+# define BOOST_STATIC_CONSTANT(type, assignment) enum { assignment }
+# else
+# define BOOST_STATIC_CONSTANT(type, assignment) static const type assignment
+# endif
+
+// BOOST_USE_FACET / HAS_FACET workaround ----------------------------------//
+// When the standard library does not have a conforming std::use_facet there
+// are various workarounds available, but they differ from library to library.
+// The same problem occurs with has_facet.
+// These macros provide a consistent way to access a locale's facets.
+// Usage:
+// replace
+// std::use_facet<Type>(loc);
+// with
+// BOOST_USE_FACET(Type, loc);
+// Note do not add a std:: prefix to the front of BOOST_USE_FACET!
+// Use for BOOST_HAS_FACET is analogous.
+
+#if defined(BOOST_NO_STD_USE_FACET)
+# ifdef BOOST_HAS_TWO_ARG_USE_FACET
+# define BOOST_USE_FACET(Type, loc) std::use_facet(loc, static_cast<Type*>(0))
+# define BOOST_HAS_FACET(Type, loc) std::has_facet(loc, static_cast<Type*>(0))
+# elif defined(BOOST_HAS_MACRO_USE_FACET)
+# define BOOST_USE_FACET(Type, loc) std::_USE(loc, Type)
+# define BOOST_HAS_FACET(Type, loc) std::_HAS(loc, Type)
+# elif defined(BOOST_HAS_STLP_USE_FACET)
+# define BOOST_USE_FACET(Type, loc) (*std::_Use_facet<Type >(loc))
+# define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
+# endif
+#else
+# define BOOST_USE_FACET(Type, loc) std::use_facet< Type >(loc)
+# define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
+#endif
+
+// BOOST_NESTED_TEMPLATE workaround ------------------------------------------//
+// Member templates are supported by some compilers even though they can't use
+// the A::template member<U> syntax, as a workaround replace:
+//
+// typedef typename A::template rebind<U> binder;
+//
+// with:
+//
+// typedef typename A::BOOST_NESTED_TEMPLATE rebind<U> binder;
+
+#ifndef BOOST_NO_MEMBER_TEMPLATE_KEYWORD
+# define BOOST_NESTED_TEMPLATE template
+#else
+# define BOOST_NESTED_TEMPLATE
+#endif
+
+// BOOST_UNREACHABLE_RETURN(x) workaround -------------------------------------//
+// Normally evaluates to nothing, unless BOOST_NO_UNREACHABLE_RETURN_DETECTION
+// is defined, in which case it evaluates to return x; Use when you have a return
+// statement that can never be reached.
+
+#ifndef BOOST_UNREACHABLE_RETURN
+# ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION
+# define BOOST_UNREACHABLE_RETURN(x) return x;
+# else
+# define BOOST_UNREACHABLE_RETURN(x)
+# endif
+#endif
+
+// BOOST_DEDUCED_TYPENAME workaround ------------------------------------------//
+//
+// Some compilers don't support the use of `typename' for dependent
+// types in deduced contexts, e.g.
+//
+// template <class T> void f(T, typename T::type);
+// ^^^^^^^^
+// Replace these declarations with:
+//
+// template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type);
+
+#ifndef BOOST_NO_DEDUCED_TYPENAME
+# define BOOST_DEDUCED_TYPENAME typename
+#else
+# define BOOST_DEDUCED_TYPENAME
+#endif
+
+#ifndef BOOST_NO_TYPENAME_WITH_CTOR
+# define BOOST_CTOR_TYPENAME typename
+#else
+# define BOOST_CTOR_TYPENAME
+#endif
+
+// long long workaround ------------------------------------------//
+// On gcc (and maybe other compilers?) long long is alway supported
+// but it's use may generate either warnings (with -ansi), or errors
+// (with -pedantic -ansi) unless it's use is prefixed by __extension__
+//
+#if defined(BOOST_HAS_LONG_LONG) && defined(__cplusplus)
+namespace boost{
+# ifdef __GNUC__
+ __extension__ typedef long long long_long_type;
+ __extension__ typedef unsigned long long ulong_long_type;
+# else
+ typedef long long long_long_type;
+ typedef unsigned long long ulong_long_type;
+# endif
+}
+#endif
+// same again for __int128:
+#if defined(BOOST_HAS_INT128) && defined(__cplusplus)
+namespace boost{
+# ifdef __GNUC__
+ __extension__ typedef __int128 int128_type;
+ __extension__ typedef unsigned __int128 uint128_type;
+# else
+ typedef __int128 int128_type;
+ typedef unsigned __int128 uint128_type;
+# endif
+}
+#endif
+// same again for __float128:
+#if defined(BOOST_HAS_FLOAT128) && defined(__cplusplus)
+namespace boost {
+# ifdef __GNUC__
+ __extension__ typedef __float128 float128_type;
+# else
+ typedef __float128 float128_type;
+# endif
+}
+#endif
+
+// BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------//
+
+// These macros are obsolete. Port away and remove.
+
+# define BOOST_EXPLICIT_TEMPLATE_TYPE(t)
+# define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
+# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
+# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
+
+# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
+# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
+# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
+# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
+
+// When BOOST_NO_STD_TYPEINFO is defined, we can just import
+// the global definition into std namespace:
+#if defined(BOOST_NO_STD_TYPEINFO) && defined(__cplusplus)
+#include <typeinfo>
+namespace std{ using ::type_info; }
+#endif
+
+// ---------------------------------------------------------------------------//
+
+// Helper macro BOOST_STRINGIZE:
+// Helper macro BOOST_JOIN:
+
+#include <boost/config/helper_macros.hpp>
+
+//
+// Set some default values for compiler/library/platform names.
+// These are for debugging config setup only:
+//
+# ifndef BOOST_COMPILER
+# define BOOST_COMPILER "Unknown ISO C++ Compiler"
+# endif
+# ifndef BOOST_STDLIB
+# define BOOST_STDLIB "Unknown ISO standard library"
+# endif
+# ifndef BOOST_PLATFORM
+# if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \
+ || defined(_POSIX_SOURCE)
+# define BOOST_PLATFORM "Generic Unix"
+# else
+# define BOOST_PLATFORM "Unknown"
+# endif
+# endif
+
+//
+// Set some default values GPU support
+//
+# ifndef BOOST_GPU_ENABLED
+# define BOOST_GPU_ENABLED
+# endif
+
+// BOOST_RESTRICT ---------------------------------------------//
+// Macro to use in place of 'restrict' keyword variants
+#if !defined(BOOST_RESTRICT)
+# if defined(_MSC_VER)
+# define BOOST_RESTRICT __restrict
+# if !defined(BOOST_NO_RESTRICT_REFERENCES) && (_MSC_FULL_VER < 190023026)
+# define BOOST_NO_RESTRICT_REFERENCES
+# endif
+# elif defined(__GNUC__) && __GNUC__ > 3
+ // Clang also defines __GNUC__ (as 4)
+# define BOOST_RESTRICT __restrict__
+# else
+# define BOOST_RESTRICT
+# if !defined(BOOST_NO_RESTRICT_REFERENCES)
+# define BOOST_NO_RESTRICT_REFERENCES
+# endif
+# endif
+#endif
+
+// BOOST_MAY_ALIAS -----------------------------------------------//
+// The macro expands to an attribute to mark a type that is allowed to alias other types.
+// The macro is defined in the compiler-specific headers.
+#if !defined(BOOST_MAY_ALIAS)
+# define BOOST_NO_MAY_ALIAS
+# define BOOST_MAY_ALIAS
+#endif
+
+// BOOST_FORCEINLINE ---------------------------------------------//
+// Macro to use in place of 'inline' to force a function to be inline
+#if !defined(BOOST_FORCEINLINE)
+# if defined(_MSC_VER)
+# define BOOST_FORCEINLINE __forceinline
+# elif defined(__GNUC__) && __GNUC__ > 3
+ // Clang also defines __GNUC__ (as 4)
+# define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__))
+# else
+# define BOOST_FORCEINLINE inline
+# endif
+#endif
+
+// BOOST_NOINLINE ---------------------------------------------//
+// Macro to use in place of 'inline' to prevent a function to be inlined
+#if !defined(BOOST_NOINLINE)
+# if defined(_MSC_VER)
+# define BOOST_NOINLINE __declspec(noinline)
+# elif defined(__GNUC__) && __GNUC__ > 3
+ // Clang also defines __GNUC__ (as 4)
+# if defined(__CUDACC__)
+ // nvcc doesn't always parse __noinline__,
+ // see: https://svn.boost.org/trac/boost/ticket/9392
+# define BOOST_NOINLINE __attribute__ ((noinline))
+# else
+# define BOOST_NOINLINE __attribute__ ((__noinline__))
+# endif
+# else
+# define BOOST_NOINLINE
+# endif
+#endif
+
+// BOOST_NORETURN ---------------------------------------------//
+// Macro to use before a function declaration/definition to designate
+// the function as not returning normally (i.e. with a return statement
+// or by leaving the function scope, if the function return type is void).
+#if !defined(BOOST_NORETURN)
+# if defined(_MSC_VER)
+# define BOOST_NORETURN __declspec(noreturn)
+# elif defined(__GNUC__)
+# define BOOST_NORETURN __attribute__ ((__noreturn__))
+# elif defined(__has_attribute) && defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x5130)
+# if __has_attribute(noreturn)
+# define BOOST_NORETURN [[noreturn]]
+# endif
+# elif defined(__has_cpp_attribute)
+# if __has_cpp_attribute(noreturn)
+# define BOOST_NORETURN [[noreturn]]
+# endif
+# endif
+#endif
+
+#if !defined(BOOST_NORETURN)
+# define BOOST_NO_NORETURN
+# define BOOST_NORETURN
+#endif
+
+// Branch prediction hints
+// These macros are intended to wrap conditional expressions that yield true or false
+//
+// if (BOOST_LIKELY(var == 10))
+// {
+// // the most probable code here
+// }
+//
+#if !defined(BOOST_LIKELY)
+# define BOOST_LIKELY(x) x
+#endif
+#if !defined(BOOST_UNLIKELY)
+# define BOOST_UNLIKELY(x) x
+#endif
+
+// Type and data alignment specification
+//
+#if !defined(BOOST_ALIGNMENT)
+# if !defined(BOOST_NO_CXX11_ALIGNAS)
+# define BOOST_ALIGNMENT(x) alignas(x)
+# elif defined(_MSC_VER)
+# define BOOST_ALIGNMENT(x) __declspec(align(x))
+# elif defined(__GNUC__)
+# define BOOST_ALIGNMENT(x) __attribute__ ((__aligned__(x)))
+# else
+# define BOOST_NO_ALIGNMENT
+# define BOOST_ALIGNMENT(x)
+# endif
+#endif
+
+// Lack of non-public defaulted functions is implied by the lack of any defaulted functions
+#if !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS) && defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS)
+# define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
+#endif
+
+// Lack of defaulted moves is implied by the lack of either rvalue references or any defaulted functions
+#if !defined(BOOST_NO_CXX11_DEFAULTED_MOVES) && (defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || defined(BOOST_NO_CXX11_RVALUE_REFERENCES))
+# define BOOST_NO_CXX11_DEFAULTED_MOVES
+#endif
+
+// Defaulted and deleted function declaration helpers
+// These macros are intended to be inside a class definition.
+// BOOST_DEFAULTED_FUNCTION accepts the function declaration and its
+// body, which will be used if the compiler doesn't support defaulted functions.
+// BOOST_DELETED_FUNCTION only accepts the function declaration. It
+// will expand to a private function declaration, if the compiler doesn't support
+// deleted functions. Because of this it is recommended to use BOOST_DELETED_FUNCTION
+// in the end of the class definition.
+//
+// class my_class
+// {
+// public:
+// // Default-constructible
+// BOOST_DEFAULTED_FUNCTION(my_class(), {})
+// // Copying prohibited
+// BOOST_DELETED_FUNCTION(my_class(my_class const&))
+// BOOST_DELETED_FUNCTION(my_class& operator= (my_class const&))
+// };
+//
+#if !(defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS))
+# define BOOST_DEFAULTED_FUNCTION(fun, body) fun = default;
+#else
+# define BOOST_DEFAULTED_FUNCTION(fun, body) fun body
+#endif
+
+#if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
+# define BOOST_DELETED_FUNCTION(fun) fun = delete;
+#else
+# define BOOST_DELETED_FUNCTION(fun) private: fun;
+#endif
+
+//
+// Set BOOST_NO_DECLTYPE_N3276 when BOOST_NO_DECLTYPE is defined
+//
+#if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_CXX11_DECLTYPE_N3276)
+#define BOOST_NO_CXX11_DECLTYPE_N3276 BOOST_NO_CXX11_DECLTYPE
+#endif
+
+// -------------------- Deprecated macros for 1.50 ---------------------------
+// These will go away in a future release
+
+// Use BOOST_NO_CXX11_HDR_UNORDERED_SET or BOOST_NO_CXX11_HDR_UNORDERED_MAP
+// instead of BOOST_NO_STD_UNORDERED
+#if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) || defined (BOOST_NO_CXX11_HDR_UNORDERED_SET)
+# ifndef BOOST_NO_CXX11_STD_UNORDERED
+# define BOOST_NO_CXX11_STD_UNORDERED
+# endif
+#endif
+
+// Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST instead of BOOST_NO_INITIALIZER_LISTS
+#if defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) && !defined(BOOST_NO_INITIALIZER_LISTS)
+# define BOOST_NO_INITIALIZER_LISTS
+#endif
+
+// Use BOOST_NO_CXX11_HDR_ARRAY instead of BOOST_NO_0X_HDR_ARRAY
+#if defined(BOOST_NO_CXX11_HDR_ARRAY) && !defined(BOOST_NO_0X_HDR_ARRAY)
+# define BOOST_NO_0X_HDR_ARRAY
+#endif
+// Use BOOST_NO_CXX11_HDR_CHRONO instead of BOOST_NO_0X_HDR_CHRONO
+#if defined(BOOST_NO_CXX11_HDR_CHRONO) && !defined(BOOST_NO_0X_HDR_CHRONO)
+# define BOOST_NO_0X_HDR_CHRONO
+#endif
+// Use BOOST_NO_CXX11_HDR_CODECVT instead of BOOST_NO_0X_HDR_CODECVT
+#if defined(BOOST_NO_CXX11_HDR_CODECVT) && !defined(BOOST_NO_0X_HDR_CODECVT)
+# define BOOST_NO_0X_HDR_CODECVT
+#endif
+// Use BOOST_NO_CXX11_HDR_CONDITION_VARIABLE instead of BOOST_NO_0X_HDR_CONDITION_VARIABLE
+#if defined(BOOST_NO_CXX11_HDR_CONDITION_VARIABLE) && !defined(BOOST_NO_0X_HDR_CONDITION_VARIABLE)
+# define BOOST_NO_0X_HDR_CONDITION_VARIABLE
+#endif
+// Use BOOST_NO_CXX11_HDR_FORWARD_LIST instead of BOOST_NO_0X_HDR_FORWARD_LIST
+#if defined(BOOST_NO_CXX11_HDR_FORWARD_LIST) && !defined(BOOST_NO_0X_HDR_FORWARD_LIST)
+# define BOOST_NO_0X_HDR_FORWARD_LIST
+#endif
+// Use BOOST_NO_CXX11_HDR_FUTURE instead of BOOST_NO_0X_HDR_FUTURE
+#if defined(BOOST_NO_CXX11_HDR_FUTURE) && !defined(BOOST_NO_0X_HDR_FUTURE)
+# define BOOST_NO_0X_HDR_FUTURE
+#endif
+
+// Use BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+// instead of BOOST_NO_0X_HDR_INITIALIZER_LIST or BOOST_NO_INITIALIZER_LISTS
+#ifdef BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+# ifndef BOOST_NO_0X_HDR_INITIALIZER_LIST
+# define BOOST_NO_0X_HDR_INITIALIZER_LIST
+# endif
+# ifndef BOOST_NO_INITIALIZER_LISTS
+# define BOOST_NO_INITIALIZER_LISTS
+# endif
+#endif
+
+// Use BOOST_NO_CXX11_HDR_MUTEX instead of BOOST_NO_0X_HDR_MUTEX
+#if defined(BOOST_NO_CXX11_HDR_MUTEX) && !defined(BOOST_NO_0X_HDR_MUTEX)
+# define BOOST_NO_0X_HDR_MUTEX
+#endif
+// Use BOOST_NO_CXX11_HDR_RANDOM instead of BOOST_NO_0X_HDR_RANDOM
+#if defined(BOOST_NO_CXX11_HDR_RANDOM) && !defined(BOOST_NO_0X_HDR_RANDOM)
+# define BOOST_NO_0X_HDR_RANDOM
+#endif
+// Use BOOST_NO_CXX11_HDR_RATIO instead of BOOST_NO_0X_HDR_RATIO
+#if defined(BOOST_NO_CXX11_HDR_RATIO) && !defined(BOOST_NO_0X_HDR_RATIO)
+# define BOOST_NO_0X_HDR_RATIO
+#endif
+// Use BOOST_NO_CXX11_HDR_REGEX instead of BOOST_NO_0X_HDR_REGEX
+#if defined(BOOST_NO_CXX11_HDR_REGEX) && !defined(BOOST_NO_0X_HDR_REGEX)
+# define BOOST_NO_0X_HDR_REGEX
+#endif
+// Use BOOST_NO_CXX11_HDR_SYSTEM_ERROR instead of BOOST_NO_0X_HDR_SYSTEM_ERROR
+#if defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR) && !defined(BOOST_NO_0X_HDR_SYSTEM_ERROR)
+# define BOOST_NO_0X_HDR_SYSTEM_ERROR
+#endif
+// Use BOOST_NO_CXX11_HDR_THREAD instead of BOOST_NO_0X_HDR_THREAD
+#if defined(BOOST_NO_CXX11_HDR_THREAD) && !defined(BOOST_NO_0X_HDR_THREAD)
+# define BOOST_NO_0X_HDR_THREAD
+#endif
+// Use BOOST_NO_CXX11_HDR_TUPLE instead of BOOST_NO_0X_HDR_TUPLE
+#if defined(BOOST_NO_CXX11_HDR_TUPLE) && !defined(BOOST_NO_0X_HDR_TUPLE)
+# define BOOST_NO_0X_HDR_TUPLE
+#endif
+// Use BOOST_NO_CXX11_HDR_TYPE_TRAITS instead of BOOST_NO_0X_HDR_TYPE_TRAITS
+#if defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS) && !defined(BOOST_NO_0X_HDR_TYPE_TRAITS)
+# define BOOST_NO_0X_HDR_TYPE_TRAITS
+#endif
+// Use BOOST_NO_CXX11_HDR_TYPEINDEX instead of BOOST_NO_0X_HDR_TYPEINDEX
+#if defined(BOOST_NO_CXX11_HDR_TYPEINDEX) && !defined(BOOST_NO_0X_HDR_TYPEINDEX)
+# define BOOST_NO_0X_HDR_TYPEINDEX
+#endif
+// Use BOOST_NO_CXX11_HDR_UNORDERED_MAP instead of BOOST_NO_0X_HDR_UNORDERED_MAP
+#if defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) && !defined(BOOST_NO_0X_HDR_UNORDERED_MAP)
+# define BOOST_NO_0X_HDR_UNORDERED_MAP
+#endif
+// Use BOOST_NO_CXX11_HDR_UNORDERED_SET instead of BOOST_NO_0X_HDR_UNORDERED_SET
+#if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) && !defined(BOOST_NO_0X_HDR_UNORDERED_SET)
+# define BOOST_NO_0X_HDR_UNORDERED_SET
+#endif
+
+// ------------------ End of deprecated macros for 1.50 ---------------------------
+
+// -------------------- Deprecated macros for 1.51 ---------------------------
+// These will go away in a future release
+
+// Use BOOST_NO_CXX11_AUTO_DECLARATIONS instead of BOOST_NO_AUTO_DECLARATIONS
+#if defined(BOOST_NO_CXX11_AUTO_DECLARATIONS) && !defined(BOOST_NO_AUTO_DECLARATIONS)
+# define BOOST_NO_AUTO_DECLARATIONS
+#endif
+// Use BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS instead of BOOST_NO_AUTO_MULTIDECLARATIONS
+#if defined(BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS) && !defined(BOOST_NO_AUTO_MULTIDECLARATIONS)
+# define BOOST_NO_AUTO_MULTIDECLARATIONS
+#endif
+// Use BOOST_NO_CXX11_CHAR16_T instead of BOOST_NO_CHAR16_T
+#if defined(BOOST_NO_CXX11_CHAR16_T) && !defined(BOOST_NO_CHAR16_T)
+# define BOOST_NO_CHAR16_T
+#endif
+// Use BOOST_NO_CXX11_CHAR32_T instead of BOOST_NO_CHAR32_T
+#if defined(BOOST_NO_CXX11_CHAR32_T) && !defined(BOOST_NO_CHAR32_T)
+# define BOOST_NO_CHAR32_T
+#endif
+// Use BOOST_NO_CXX11_TEMPLATE_ALIASES instead of BOOST_NO_TEMPLATE_ALIASES
+#if defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) && !defined(BOOST_NO_TEMPLATE_ALIASES)
+# define BOOST_NO_TEMPLATE_ALIASES
+#endif
+// Use BOOST_NO_CXX11_CONSTEXPR instead of BOOST_NO_CONSTEXPR
+#if defined(BOOST_NO_CXX11_CONSTEXPR) && !defined(BOOST_NO_CONSTEXPR)
+# define BOOST_NO_CONSTEXPR
+#endif
+// Use BOOST_NO_CXX11_DECLTYPE_N3276 instead of BOOST_NO_DECLTYPE_N3276
+#if defined(BOOST_NO_CXX11_DECLTYPE_N3276) && !defined(BOOST_NO_DECLTYPE_N3276)
+# define BOOST_NO_DECLTYPE_N3276
+#endif
+// Use BOOST_NO_CXX11_DECLTYPE instead of BOOST_NO_DECLTYPE
+#if defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_DECLTYPE)
+# define BOOST_NO_DECLTYPE
+#endif
+// Use BOOST_NO_CXX11_DEFAULTED_FUNCTIONS instead of BOOST_NO_DEFAULTED_FUNCTIONS
+#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_DEFAULTED_FUNCTIONS)
+# define BOOST_NO_DEFAULTED_FUNCTIONS
+#endif
+// Use BOOST_NO_CXX11_DELETED_FUNCTIONS instead of BOOST_NO_DELETED_FUNCTIONS
+#if defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) && !defined(BOOST_NO_DELETED_FUNCTIONS)
+# define BOOST_NO_DELETED_FUNCTIONS
+#endif
+// Use BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS instead of BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
+#if defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS) && !defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATORS)
+# define BOOST_NO_EXPLICIT_CONVERSION_OPERATORS
+#endif
+// Use BOOST_NO_CXX11_EXTERN_TEMPLATE instead of BOOST_NO_EXTERN_TEMPLATE
+#if defined(BOOST_NO_CXX11_EXTERN_TEMPLATE) && !defined(BOOST_NO_EXTERN_TEMPLATE)
+# define BOOST_NO_EXTERN_TEMPLATE
+#endif
+// Use BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS instead of BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#if defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) && !defined(BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS)
+# define BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+// Use BOOST_NO_CXX11_LAMBDAS instead of BOOST_NO_LAMBDAS
+#if defined(BOOST_NO_CXX11_LAMBDAS) && !defined(BOOST_NO_LAMBDAS)
+# define BOOST_NO_LAMBDAS
+#endif
+// Use BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS instead of BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#if defined(BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS) && !defined(BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS)
+# define BOOST_NO_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#endif
+// Use BOOST_NO_CXX11_NOEXCEPT instead of BOOST_NO_NOEXCEPT
+#if defined(BOOST_NO_CXX11_NOEXCEPT) && !defined(BOOST_NO_NOEXCEPT)
+# define BOOST_NO_NOEXCEPT
+#endif
+// Use BOOST_NO_CXX11_NULLPTR instead of BOOST_NO_NULLPTR
+#if defined(BOOST_NO_CXX11_NULLPTR) && !defined(BOOST_NO_NULLPTR)
+# define BOOST_NO_NULLPTR
+#endif
+// Use BOOST_NO_CXX11_RAW_LITERALS instead of BOOST_NO_RAW_LITERALS
+#if defined(BOOST_NO_CXX11_RAW_LITERALS) && !defined(BOOST_NO_RAW_LITERALS)
+# define BOOST_NO_RAW_LITERALS
+#endif
+// Use BOOST_NO_CXX11_RVALUE_REFERENCES instead of BOOST_NO_RVALUE_REFERENCES
+#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_RVALUE_REFERENCES)
+# define BOOST_NO_RVALUE_REFERENCES
+#endif
+// Use BOOST_NO_CXX11_SCOPED_ENUMS instead of BOOST_NO_SCOPED_ENUMS
+#if defined(BOOST_NO_CXX11_SCOPED_ENUMS) && !defined(BOOST_NO_SCOPED_ENUMS)
+# define BOOST_NO_SCOPED_ENUMS
+#endif
+// Use BOOST_NO_CXX11_STATIC_ASSERT instead of BOOST_NO_STATIC_ASSERT
+#if defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_NO_STATIC_ASSERT)
+# define BOOST_NO_STATIC_ASSERT
+#endif
+// Use BOOST_NO_CXX11_STD_UNORDERED instead of BOOST_NO_STD_UNORDERED
+#if defined(BOOST_NO_CXX11_STD_UNORDERED) && !defined(BOOST_NO_STD_UNORDERED)
+# define BOOST_NO_STD_UNORDERED
+#endif
+// Use BOOST_NO_CXX11_UNICODE_LITERALS instead of BOOST_NO_UNICODE_LITERALS
+#if defined(BOOST_NO_CXX11_UNICODE_LITERALS) && !defined(BOOST_NO_UNICODE_LITERALS)
+# define BOOST_NO_UNICODE_LITERALS
+#endif
+// Use BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX instead of BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
+#if defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX) && !defined(BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX)
+# define BOOST_NO_UNIFIED_INITIALIZATION_SYNTAX
+#endif
+// Use BOOST_NO_CXX11_VARIADIC_TEMPLATES instead of BOOST_NO_VARIADIC_TEMPLATES
+#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_VARIADIC_TEMPLATES)
+# define BOOST_NO_VARIADIC_TEMPLATES
+#endif
+// Use BOOST_NO_CXX11_VARIADIC_MACROS instead of BOOST_NO_VARIADIC_MACROS
+#if defined(BOOST_NO_CXX11_VARIADIC_MACROS) && !defined(BOOST_NO_VARIADIC_MACROS)
+# define BOOST_NO_VARIADIC_MACROS
+#endif
+// Use BOOST_NO_CXX11_NUMERIC_LIMITS instead of BOOST_NO_NUMERIC_LIMITS_LOWEST
+#if defined(BOOST_NO_CXX11_NUMERIC_LIMITS) && !defined(BOOST_NO_NUMERIC_LIMITS_LOWEST)
+# define BOOST_NO_NUMERIC_LIMITS_LOWEST
+#endif
+// ------------------ End of deprecated macros for 1.51 ---------------------------
+
+
+
+//
+// Helper macros BOOST_NOEXCEPT, BOOST_NOEXCEPT_IF, BOOST_NOEXCEPT_EXPR
+// These aid the transition to C++11 while still supporting C++03 compilers
+//
+#ifdef BOOST_NO_CXX11_NOEXCEPT
+# define BOOST_NOEXCEPT
+# define BOOST_NOEXCEPT_OR_NOTHROW throw()
+# define BOOST_NOEXCEPT_IF(Predicate)
+# define BOOST_NOEXCEPT_EXPR(Expression) false
+#else
+# define BOOST_NOEXCEPT noexcept
+# define BOOST_NOEXCEPT_OR_NOTHROW noexcept
+# define BOOST_NOEXCEPT_IF(Predicate) noexcept((Predicate))
+# define BOOST_NOEXCEPT_EXPR(Expression) noexcept((Expression))
+#endif
+//
+// Helper macro BOOST_FALLTHROUGH
+// Fallback definition of BOOST_FALLTHROUGH macro used to mark intended
+// fall-through between case labels in a switch statement. We use a definition
+// that requires a semicolon after it to avoid at least one type of misuse even
+// on unsupported compilers.
+//
+#ifndef BOOST_FALLTHROUGH
+# define BOOST_FALLTHROUGH ((void)0)
+#endif
+
+//
+// constexpr workarounds
+//
+#if defined(BOOST_NO_CXX11_CONSTEXPR)
+#define BOOST_CONSTEXPR
+#define BOOST_CONSTEXPR_OR_CONST const
+#else
+#define BOOST_CONSTEXPR constexpr
+#define BOOST_CONSTEXPR_OR_CONST constexpr
+#endif
+#if defined(BOOST_NO_CXX14_CONSTEXPR)
+#define BOOST_CXX14_CONSTEXPR
+#else
+#define BOOST_CXX14_CONSTEXPR constexpr
+#endif
+
+//
+// Unused variable/typedef workarounds:
+//
+#ifndef BOOST_ATTRIBUTE_UNUSED
+# define BOOST_ATTRIBUTE_UNUSED
+#endif
+
+#define BOOST_STATIC_CONSTEXPR static BOOST_CONSTEXPR_OR_CONST
+
+//
+// Set BOOST_HAS_STATIC_ASSERT when BOOST_NO_CXX11_STATIC_ASSERT is not defined
+//
+#if !defined(BOOST_NO_CXX11_STATIC_ASSERT) && !defined(BOOST_HAS_STATIC_ASSERT)
+# define BOOST_HAS_STATIC_ASSERT
+#endif
+
+//
+// Set BOOST_HAS_RVALUE_REFS when BOOST_NO_CXX11_RVALUE_REFERENCES is not defined
+//
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_HAS_RVALUE_REFS)
+#define BOOST_HAS_RVALUE_REFS
+#endif
+
+//
+// Set BOOST_HAS_VARIADIC_TMPL when BOOST_NO_CXX11_VARIADIC_TEMPLATES is not defined
+//
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_HAS_VARIADIC_TMPL)
+#define BOOST_HAS_VARIADIC_TMPL
+#endif
+//
+// Set BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS when
+// BOOST_NO_CXX11_VARIADIC_TEMPLATES is set:
+//
+#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS)
+# define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#endif
+
+//
+// Finish off with checks for macros that are depricated / no longer supported,
+// if any of these are set then it's very likely that much of Boost will no
+// longer work. So stop with a #error for now, but give the user a chance
+// to continue at their own risk if they really want to:
+//
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_CONFIG_ALLOW_DEPRECATED)
+# 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!!!"
+#endif
+
+#endif