Merge pull request #7 from bunnei/variant

Add boost::variant

boost/blank.hpp

@@ -0,0 +1,106 @@
+//-----------------------------------------------------------------------------
+// boost blank.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_BLANK_HPP
+#define BOOST_BLANK_HPP
+
+#include "boost/blank_fwd.hpp"
+
+#if !defined(BOOST_NO_IOSTREAM)
+#include <iosfwd> // for std::basic_ostream forward declare
+#include "boost/detail/templated_streams.hpp"
+#endif // BOOST_NO_IOSTREAM
+
+#include "boost/mpl/bool.hpp"
+#include "boost/type_traits/is_empty.hpp"
+#include "boost/type_traits/is_pod.hpp"
+#include "boost/type_traits/is_stateless.hpp"
+
+namespace boost {
+
+struct blank
+{
+};
+
+// type traits specializations
+//
+
+template <>
+struct is_pod< blank >
+    : mpl::true_
+{
+};
+
+template <>
+struct is_empty< blank >
+    : mpl::true_
+{
+};
+
+template <>
+struct is_stateless< blank >
+    : mpl::true_
+{
+};
+
+// relational operators
+//
+
+inline bool operator==(const blank&, const blank&)
+{
+    return true;
+}
+
+inline bool operator<=(const blank&, const blank&)
+{
+    return true;
+}
+
+inline bool operator>=(const blank&, const blank&)
+{
+    return true;
+}
+
+inline bool operator!=(const blank&, const blank&)
+{
+    return false;
+}
+
+inline bool operator<(const blank&, const blank&)
+{
+    return false;
+}
+
+inline bool operator>(const blank&, const blank&)
+{
+    return false;
+}
+
+// streaming support
+//
+#if !defined(BOOST_NO_IOSTREAM)
+
+BOOST_TEMPLATED_STREAM_TEMPLATE(E,T)
+inline BOOST_TEMPLATED_STREAM(ostream, E,T)& operator<<(
+      BOOST_TEMPLATED_STREAM(ostream, E,T)& out
+    , const blank&
+    )
+{
+    // (output nothing)
+    return out;
+}
+
+#endif // BOOST_NO_IOSTREAM
+
+} // namespace boost
+
+#endif // BOOST_BLANK_HPP

boost/blank_fwd.hpp

@@ -0,0 +1,22 @@
+//-----------------------------------------------------------------------------
+// boost blank_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_BLANK_FWD_HPP
+#define BOOST_BLANK_FWD_HPP
+
+namespace boost {
+
+struct blank;
+
+} // namespace boost
+
+#endif // BOOST_BLANK_FWD_HPP

boost/core/demangle.hpp

@@ -0,0 +1,121 @@
+#ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED
+#define BOOST_CORE_DEMANGLE_HPP_INCLUDED
+
+// core::demangle
+//
+// Copyright 2014 Peter Dimov
+// Copyright 2014 Andrey Semashev
+//
+// 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
+
+#include <boost/config.hpp>
+#include <string>
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+# pragma once
+#endif
+
+#if defined( __clang__ ) && defined( __has_include )
+# if __has_include(<cxxabi.h>)
+#  define BOOST_CORE_HAS_CXXABI_H
+# endif
+#elif defined( __GLIBCXX__ ) || defined( __GLIBCPP__ )
+# define BOOST_CORE_HAS_CXXABI_H
+#endif
+
+#if defined( BOOST_CORE_HAS_CXXABI_H )
+# include <cxxabi.h>
+# include <cstdlib>
+# include <cstddef>
+#endif
+
+namespace boost
+{
+
+namespace core
+{
+
+inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT;
+inline void demangle_free( char const * name ) BOOST_NOEXCEPT;
+
+class scoped_demangled_name
+{
+private:
+    char const * m_p;
+
+public:
+    explicit scoped_demangled_name( char const * name ) BOOST_NOEXCEPT :
+        m_p( demangle_alloc( name ) )
+    {
+    }
+
+    ~scoped_demangled_name() BOOST_NOEXCEPT
+    {
+        demangle_free( m_p );
+    }
+
+    char const * get() const BOOST_NOEXCEPT
+    {
+        return m_p;
+    }
+
+    BOOST_DELETED_FUNCTION(scoped_demangled_name( scoped_demangled_name const& ))
+    BOOST_DELETED_FUNCTION(scoped_demangled_name& operator= ( scoped_demangled_name const& ))
+};
+
+
+#if defined( BOOST_CORE_HAS_CXXABI_H )
+
+inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT
+{
+    int status = 0;
+    std::size_t size = 0;
+    return abi::__cxa_demangle( name, NULL, &size, &status );
+}
+
+inline void demangle_free( char const * name ) BOOST_NOEXCEPT
+{
+    std::free( const_cast< char* >( name ) );
+}
+
+inline std::string demangle( char const * name )
+{
+    scoped_demangled_name demangled_name( name );
+    char const * const p = demangled_name.get();
+    if( p )
+    {
+        return p;
+    }
+    else
+    {
+        return name;
+    }
+}
+
+#else
+
+inline char const * demangle_alloc( char const * name ) BOOST_NOEXCEPT
+{
+    return name;
+}
+
+inline void demangle_free( char const * ) BOOST_NOEXCEPT
+{
+}
+
+inline std::string demangle( char const * name )
+{
+    return name;
+}
+
+#endif
+
+} // namespace core
+
+} // namespace boost
+
+#undef BOOST_CORE_HAS_CXXABI_H
+
+#endif // #ifndef BOOST_CORE_DEMANGLE_HPP_INCLUDED

boost/detail/templated_streams.hpp

@@ -0,0 +1,74 @@
+//-----------------------------------------------------------------------------
+// boost detail/templated_streams.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_DETAIL_TEMPLATED_STREAMS_HPP
+#define BOOST_DETAIL_TEMPLATED_STREAMS_HPP
+
+#include "boost/config.hpp"
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) BOOST_TEMPLATED_STREAM_* macros
+//
+// Provides workaround platforms without stream class templates.
+//
+
+#if !defined(BOOST_NO_STD_LOCALE)
+
+#define BOOST_TEMPLATED_STREAM_TEMPLATE(E,T) \
+    template < typename E , typename T >
+
+#define BOOST_TEMPLATED_STREAM_TEMPLATE_ALLOC(E,T,A) \
+    template < typename E , typename T , typename A >
+
+#define BOOST_TEMPLATED_STREAM_ARGS(E,T) \
+    typename E , typename T 
+
+#define BOOST_TEMPLATED_STREAM_ARGS_ALLOC(E,T,A) \
+    typename E , typename T , typename A 
+
+#define BOOST_TEMPLATED_STREAM_COMMA        ,
+
+#define BOOST_TEMPLATED_STREAM_ELEM(E)      E
+#define BOOST_TEMPLATED_STREAM_TRAITS(T)    T
+#define BOOST_TEMPLATED_STREAM_ALLOC(A)     A
+
+#define BOOST_TEMPLATED_STREAM(X,E,T) \
+    BOOST_JOIN(std::basic_,X)< E , T >
+
+#define BOOST_TEMPLATED_STREAM_WITH_ALLOC(X,E,T,A) \
+    BOOST_JOIN(std::basic_,X)< E , T , A >
+
+#else // defined(BOOST_NO_STD_LOCALE)
+
+#define BOOST_TEMPLATED_STREAM_TEMPLATE(E,T) /**/
+
+#define BOOST_TEMPLATED_STREAM_TEMPLATE_ALLOC(E,T,A) /**/
+
+#define BOOST_TEMPLATED_STREAM_ARGS(E,T) /**/
+
+#define BOOST_TEMPLATED_STREAM_ARGS_ALLOC(E,T,A) /**/
+
+#define BOOST_TEMPLATED_STREAM_COMMA        /**/
+
+#define BOOST_TEMPLATED_STREAM_ELEM(E)      char
+#define BOOST_TEMPLATED_STREAM_TRAITS(T)    std::char_traits<char>
+#define BOOST_TEMPLATED_STREAM_ALLOC(A)     std::allocator<char>
+
+#define BOOST_TEMPLATED_STREAM(X,E,T) \
+    std::X
+
+#define BOOST_TEMPLATED_STREAM_WITH_ALLOC(X,E,T,A) \
+    std::X
+
+#endif // BOOST_NO_STD_LOCALE
+
+#endif // BOOST_DETAIL_TEMPLATED_STREAMS_HPP

boost/functional/hash/hash_fwd.hpp

@@ -0,0 +1,36 @@
+
+// Copyright 2005-2009 Daniel James.
+// 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)
+
+//  Based on Peter Dimov's proposal
+//  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
+//  issue 6.18. 
+
+#if !defined(BOOST_FUNCTIONAL_HASH_FWD_HPP)
+#define BOOST_FUNCTIONAL_HASH_FWD_HPP
+
+#include <boost/config.hpp>
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#include <cstddef>
+#include <boost/detail/workaround.hpp>
+
+namespace boost
+{
+    template <class T> struct hash;
+
+    template <class T> void hash_combine(std::size_t& seed, T const& v);
+
+    template <class It> std::size_t hash_range(It, It);
+    template <class It> void hash_range(std::size_t&, It, It);
+
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+    template <class T> inline std::size_t hash_range(T*, T*);
+    template <class T> inline void hash_range(std::size_t&, T*, T*);
+#endif
+}
+
+#endif

boost/functional/hash_fwd.hpp

@@ -0,0 +1,11 @@
+
+// Copyright 2005-2009 Daniel James.
+// 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)
+
+#include <boost/config.hpp>
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#include <boost/functional/hash/hash_fwd.hpp>

boost/math/common_factor_ct.hpp

@@ -0,0 +1,97 @@
+//  Boost common_factor_ct.hpp header file  ----------------------------------//
+
+//  (C) Copyright Daryle Walker and Stephen Cleary 2001-2002.
+//  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 updates, documentation, and revision history. 
+
+#ifndef BOOST_MATH_COMMON_FACTOR_CT_HPP
+#define BOOST_MATH_COMMON_FACTOR_CT_HPP
+
+#include <boost/math_fwd.hpp>  // self include
+#include <boost/config.hpp>  // for BOOST_STATIC_CONSTANT, etc.
+#include <boost/mpl/integral_c.hpp>
+
+namespace boost
+{
+namespace math
+{
+
+//  Implementation details  --------------------------------------------------//
+
+namespace detail
+{
+    // Build GCD with Euclid's recursive algorithm
+    template < static_gcd_type Value1, static_gcd_type Value2 >
+    struct static_gcd_helper_t
+    {
+    private:
+        BOOST_STATIC_CONSTANT( static_gcd_type, new_value1 = Value2 );
+        BOOST_STATIC_CONSTANT( static_gcd_type, new_value2 = Value1 % Value2 );
+
+        #ifndef __BORLANDC__
+        #define BOOST_DETAIL_GCD_HELPER_VAL(Value) static_cast<static_gcd_type>(Value)
+        #else
+        typedef static_gcd_helper_t  self_type;
+        #define BOOST_DETAIL_GCD_HELPER_VAL(Value)  (self_type:: Value )
+        #endif
+
+        typedef static_gcd_helper_t< BOOST_DETAIL_GCD_HELPER_VAL(new_value1),
+         BOOST_DETAIL_GCD_HELPER_VAL(new_value2) >  next_step_type;
+
+        #undef BOOST_DETAIL_GCD_HELPER_VAL
+
+    public:
+        BOOST_STATIC_CONSTANT( static_gcd_type, value = next_step_type::value );
+    };
+
+    // Non-recursive case
+    template < static_gcd_type Value1 >
+    struct static_gcd_helper_t< Value1, 0UL >
+    {
+        BOOST_STATIC_CONSTANT( static_gcd_type, value = Value1 );
+    };
+
+    // Build the LCM from the GCD
+    template < static_gcd_type Value1, static_gcd_type Value2 >
+    struct static_lcm_helper_t
+    {
+        typedef static_gcd_helper_t<Value1, Value2>  gcd_type;
+
+        BOOST_STATIC_CONSTANT( static_gcd_type, value = Value1 / gcd_type::value
+         * Value2 );
+    };
+
+    // Special case for zero-GCD values
+    template < >
+    struct static_lcm_helper_t< 0UL, 0UL >
+    {
+        BOOST_STATIC_CONSTANT( static_gcd_type, value = 0UL );
+    };
+
+}  // namespace detail
+
+
+//  Compile-time greatest common divisor evaluator class declaration  --------//
+
+template < static_gcd_type Value1, static_gcd_type Value2 >
+struct static_gcd : public mpl::integral_c<static_gcd_type, (detail::static_gcd_helper_t<Value1, Value2>::value) >
+{
+};  // boost::math::static_gcd
+
+
+//  Compile-time least common multiple evaluator class declaration  ----------//
+
+template < static_gcd_type Value1, static_gcd_type Value2 >
+struct static_lcm : public mpl::integral_c<static_gcd_type, (detail::static_lcm_helper_t<Value1, Value2>::value) >
+{
+};  // boost::math::static_lcm
+
+
+}  // namespace math
+}  // namespace boost
+
+
+#endif  // BOOST_MATH_COMMON_FACTOR_CT_HPP

boost/math_fwd.hpp

@@ -0,0 +1,108 @@
+//  Boost math_fwd.hpp header file  ------------------------------------------//
+
+//  (C) Copyright Hubert Holin and Daryle Walker 2001-2002.  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/libs/math for documentation.
+
+#ifndef BOOST_MATH_FWD_HPP
+#define BOOST_MATH_FWD_HPP
+
+#include <boost/cstdint.hpp>
+
+namespace boost
+{
+namespace math
+{
+
+
+//  From <boost/math/quaternion.hpp>  ----------------------------------------//
+
+template < typename T >
+    class quaternion;
+
+template < >
+    class quaternion< float >;
+template < >
+    class quaternion< double >;
+template < >
+    class quaternion< long double >;
+
+// Also has many function templates (including operators)
+
+
+//  From <boost/math/octonion.hpp>  ------------------------------------------//
+
+template < typename T >
+    class octonion;
+
+template < >
+    class octonion< float >;
+template < >
+    class octonion< double >;
+template < >
+    class octonion< long double >;
+
+// Also has many function templates (including operators)
+
+
+//  From <boost/math/special_functions/acosh.hpp>  ---------------------------//
+
+// Only has function template
+
+
+//  From <boost/math/special_functions/asinh.hpp>  ---------------------------//
+
+// Only has function template
+
+
+//  From <boost/math/special_functions/atanh.hpp>  ---------------------------//
+
+// Only has function template
+
+
+//  From <boost/math/special_functions/sinc.hpp>  ----------------------------//
+
+// Only has function templates
+
+
+//  From <boost/math/special_functions/sinhc.hpp>  ---------------------------//
+
+// Only has function templates
+
+
+//  From <boost/math/common_factor.hpp>  -------------------------------------//
+
+// Only #includes other headers
+
+
+//  From <boost/math/common_factor_ct.hpp>  ----------------------------------//
+
+#ifdef BOOST_NO_INTEGRAL_INT64_T
+     typedef unsigned long static_gcd_type;
+#else
+     typedef boost::uintmax_t static_gcd_type;
+#endif
+
+template < static_gcd_type Value1, static_gcd_type Value2 >
+    struct static_gcd;
+template < static_gcd_type Value1, static_gcd_type Value2 >
+    struct static_lcm;
+
+
+//  From <boost/math/common_factor_rt.hpp>  ----------------------------------//
+
+template < typename IntegerType >
+    class gcd_evaluator;
+template < typename IntegerType >
+    class lcm_evaluator;
+
+// Also has a couple of function templates
+
+
+}  // namespace math
+}  // namespace boost
+
+
+#endif  // BOOST_MATH_FWD_HPP

boost/mpl/aux_/empty_impl.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED
+#define BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/empty_fwd.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/aux_/traits_lambda_spec.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace mpl {
+
+// default implementation; conrete sequences might override it by 
+// specializing either the 'empty_impl' or the primary 'empty' template
+
+template< typename Tag >
+struct empty_impl
+{
+    template< typename Sequence > struct apply
+        : is_same<
+              typename begin<Sequence>::type
+            , typename end<Sequence>::type
+            >
+    {
+    };
+};
+
+BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,empty_impl)
+
+}}
+
+#endif // BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED

boost/mpl/aux_/front_impl.hpp

@@ -0,0 +1,41 @@
+
+#ifndef BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
+#define BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/front_fwd.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/aux_/traits_lambda_spec.hpp>
+
+namespace boost { namespace mpl {
+
+// default implementation; conrete sequences might override it by 
+// specializing either the 'front_impl' or the primary 'front' template
+
+template< typename Tag >
+struct front_impl
+{
+    template< typename Sequence > struct apply
+    {
+        typedef typename begin<Sequence>::type iter_;
+        typedef typename deref<iter_>::type type;
+    };
+};
+
+BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,front_impl)
+
+}}
+
+#endif // BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED

boost/mpl/empty.hpp

@@ -0,0 +1,39 @@
+
+#ifndef BOOST_MPL_EMPTY_HPP_INCLUDED
+#define BOOST_MPL_EMPTY_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/empty_fwd.hpp>
+#include <boost/mpl/sequence_tag.hpp>
+#include <boost/mpl/aux_/empty_impl.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
+    >
+struct empty
+    : empty_impl< typename sequence_tag<Sequence>::type >
+        ::template apply< Sequence >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,empty,(Sequence))
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, empty)
+
+}}
+
+#endif // BOOST_MPL_EMPTY_HPP_INCLUDED

boost/mpl/equal.hpp

@@ -0,0 +1,112 @@
+
+#ifndef BOOST_MPL_EQUAL_HPP_INCLUDED
+#define BOOST_MPL_EQUAL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/aux_/iter_fold_if_impl.hpp>
+#include <boost/mpl/aux_/iter_apply.hpp>
+#include <boost/mpl/and.hpp>
+#include <boost/mpl/not.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/next.hpp>
+#include <boost/mpl/always.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/lambda.hpp>
+#include <boost/mpl/bind.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/mpl/void.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+#include <boost/mpl/aux_/msvc_eti_base.hpp>
+
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace mpl {
+
+namespace aux {
+
+template<
+      typename Predicate
+    , typename LastIterator1
+    , typename LastIterator2
+    >
+struct equal_pred
+{
+    template<
+          typename Iterator2
+        , typename Iterator1
+        >
+    struct apply
+    {
+        typedef typename and_< 
+              not_< is_same<Iterator1,LastIterator1> >
+            , not_< is_same<Iterator2,LastIterator2> >
+            , aux::iter_apply2<Predicate,Iterator1,Iterator2>
+            >::type type;
+    };
+};
+
+template<
+      typename Sequence1
+    , typename Sequence2
+    , typename Predicate
+    >
+struct equal_impl
+{
+    typedef typename begin<Sequence1>::type first1_;
+    typedef typename begin<Sequence2>::type first2_;
+    typedef typename end<Sequence1>::type last1_;
+    typedef typename end<Sequence2>::type last2_;
+
+    typedef aux::iter_fold_if_impl<
+          first1_
+        , first2_
+        , next<>
+        , protect< aux::equal_pred<Predicate,last1_,last2_> >
+        , void_
+        , always<false_>
+        > fold_;
+
+    typedef typename fold_::iterator iter1_;
+    typedef typename fold_::state iter2_;
+    typedef and_<
+          is_same<iter1_,last1_>
+        , is_same<iter2_,last2_>
+        > result_;
+
+    typedef typename result_::type type;
+};
+
+
+} // namespace aux
+
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Sequence1)
+    , typename BOOST_MPL_AUX_NA_PARAM(Sequence2)
+    , typename Predicate = is_same<_,_>
+    >
+struct equal
+    : aux::msvc_eti_base< 
+          typename aux::equal_impl<Sequence1,Sequence2,Predicate>::type
+        >::type
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,equal,(Sequence1,Sequence2))
+};
+
+BOOST_MPL_AUX_NA_SPEC(2, equal)
+
+}}
+
+#endif // BOOST_MPL_EQUAL_HPP_INCLUDED

boost/mpl/front.hpp

@@ -0,0 +1,39 @@
+
+#ifndef BOOST_MPL_FRONT_HPP_INCLUDED
+#define BOOST_MPL_FRONT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/front_fwd.hpp>
+#include <boost/mpl/aux_/front_impl.hpp>
+#include <boost/mpl/sequence_tag.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
+    >
+struct front
+    : front_impl< typename sequence_tag<Sequence>::type >
+        ::template apply< Sequence >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,front,(Sequence))
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, front)
+
+}}
+
+#endif // BOOST_MPL_FRONT_HPP_INCLUDED

boost/mpl/is_sequence.hpp

@@ -0,0 +1,112 @@
+
+#ifndef BOOST_MPL_IS_SEQUENCE_HPP_INCLUDED
+#define BOOST_MPL_IS_SEQUENCE_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/not.hpp>
+#include <boost/mpl/and.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/sequence_tag_fwd.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/mpl/void.hpp>
+#include <boost/mpl/aux_/has_tag.hpp>
+#include <boost/mpl/aux_/has_begin.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+#include <boost/mpl/aux_/config/eti.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+#   include <boost/mpl/aux_/msvc_is_class.hpp>
+#elif BOOST_WORKAROUND(BOOST_MSVC, == 1300)
+#   include <boost/type_traits/is_class.hpp>
+#endif
+
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace mpl {
+
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
+
+namespace aux {
+
+// agurt, 11/jun/03: 
+// MSVC 6.5/7.0 fails if 'has_begin' is instantiated on a class type that has a
+// 'begin' member that doesn't name a type; e.g. 'has_begin< std::vector<int> >'
+// would fail; requiring 'T' to have _both_ 'tag' and 'begin' members workarounds
+// the issue for most real-world cases
+template< typename T > struct is_sequence_impl
+    : and_<
+          identity< aux::has_tag<T> >
+        , identity< aux::has_begin<T> >
+        >
+{
+};
+
+} // namespace aux
+        
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(T)
+    >
+struct is_sequence
+    : if_<
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+          aux::msvc_is_class<T> 
+#else
+          boost::is_class<T> 
+#endif
+        , aux::is_sequence_impl<T>
+        , bool_<false>
+        >::type
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1, is_sequence, (T))
+};
+
+#elif defined(BOOST_MPL_CFG_NO_HAS_XXX)
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(T)
+    >
+struct is_sequence
+    : bool_<false>
+{
+};
+
+#else
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(T)
+    >
+struct is_sequence
+    : not_< is_same< typename begin<T>::type, void_ > >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1, is_sequence, (T))
+};
+
+#endif // BOOST_MSVC
+
+#if defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
+template<> struct is_sequence<int>
+    : bool_<false>
+{
+};
+#endif
+
+BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, is_sequence)
+
+}}
+
+#endif // BOOST_MPL_IS_SEQUENCE_HPP_INCLUDED

boost/mpl/iterator_category.hpp

@@ -0,0 +1,35 @@
+
+#ifndef BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED
+#define BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost {  namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Iterator)
+    >
+struct iterator_category
+{
+    typedef typename Iterator::category type;
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,iterator_category,(Iterator))
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, iterator_category)
+
+}}
+
+#endif // BOOST_MPL_ITERATOR_CATEGORY_HPP_INCLUDED

boost/mpl/limits/list.hpp

@@ -0,0 +1,21 @@
+
+#ifndef BOOST_MPL_LIMITS_LIST_HPP_INCLUDED
+#define BOOST_MPL_LIMITS_LIST_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_LIMIT_LIST_SIZE)
+#   define BOOST_MPL_LIMIT_LIST_SIZE 20
+#endif
+
+#endif // BOOST_MPL_LIMITS_LIST_HPP_INCLUDED

boost/mpl/list.hpp

@@ -0,0 +1,57 @@
+
+#ifndef BOOST_MPL_LIST_HPP_INCLUDED
+#define BOOST_MPL_LIST_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/limits/list.hpp>
+#   include <boost/mpl/aux_/na.hpp>
+#   include <boost/mpl/aux_/config/preprocessor.hpp>
+
+#   include <boost/preprocessor/inc.hpp>
+#   include <boost/preprocessor/cat.hpp>
+#   include <boost/preprocessor/stringize.hpp>
+
+#if !defined(BOOST_NEEDS_TOKEN_PASTING_OP_FOR_TOKENS_JUXTAPOSING)
+#   define AUX778076_LIST_HEADER \
+    BOOST_PP_CAT(list,BOOST_MPL_LIMIT_LIST_SIZE).hpp \
+    /**/
+#else
+#   define AUX778076_LIST_HEADER \
+    BOOST_PP_CAT(list,BOOST_MPL_LIMIT_LIST_SIZE)##.hpp \
+    /**/
+#endif
+
+#   include BOOST_PP_STRINGIZE(boost/mpl/list/AUX778076_LIST_HEADER)
+#   undef AUX778076_LIST_HEADER
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+    && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list.hpp
+#   include <boost/mpl/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/mpl/limits/list.hpp>
+
+#   define AUX778076_SEQUENCE_NAME list
+#   define AUX778076_SEQUENCE_LIMIT BOOST_MPL_LIMIT_LIST_SIZE
+#   include <boost/mpl/aux_/sequence_wrapper.hpp>
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+#endif // BOOST_MPL_LIST_HPP_INCLUDED

boost/mpl/list/aux_/O1_size.hpp

@@ -0,0 +1,33 @@
+
+#ifndef BOOST_MPL_LIST_AUX_O1_SIZE_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_O1_SIZE_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/O1_size_fwd.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct O1_size_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+        : List::size
+    {
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_O1_SIZE_HPP_INCLUDED

boost/mpl/list/aux_/begin_end.hpp

@@ -0,0 +1,44 @@
+
+#ifndef BOOST_MPL_LIST_AUX_BEGIN_END_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_BEGIN_END_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/begin_end_fwd.hpp>
+#include <boost/mpl/list/aux_/iterator.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+#include <boost/mpl/list/aux_/item.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct begin_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+    {
+        typedef l_iter<typename List::type> type;
+    };
+};
+
+template<>
+struct end_impl< aux::list_tag >
+{
+    template< typename > struct apply
+    {
+        typedef l_iter<l_end> type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_BEGIN_END_HPP_INCLUDED

boost/mpl/list/aux_/clear.hpp

@@ -0,0 +1,34 @@
+
+#ifndef BOOST_MPL_LIST_AUX_CLEAR_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_CLEAR_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/clear_fwd.hpp>
+#include <boost/mpl/list/aux_/item.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct clear_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+    {
+        typedef l_end type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_CLEAR_HPP_INCLUDED

boost/mpl/list/aux_/empty.hpp

@@ -0,0 +1,34 @@
+
+#ifndef BOOST_MPL_LIST_AUX_EMPTY_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_EMPTY_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/empty_fwd.hpp>
+#include <boost/mpl/not.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct empty_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+        : not_<typename List::size>
+    {
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_EMPTY_HPP_INCLUDED

boost/mpl/list/aux_/front.hpp

@@ -0,0 +1,33 @@
+
+#ifndef BOOST_MPL_LIST_AUX_FRONT_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_FRONT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/front_fwd.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct front_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+    {
+        typedef typename List::item type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_FRONT_HPP_INCLUDED

boost/mpl/list/aux_/include_preprocessed.hpp

@@ -0,0 +1,35 @@
+
+// Copyright Aleksey Gurtovoy 2001-2006
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION!
+
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/stringize.hpp>
+
+#   define AUX778076_HEADER \
+    aux_/preprocessed/plain/BOOST_MPL_PREPROCESSED_HEADER \
+/**/
+
+#if BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(700))
+#   define AUX778076_INCLUDE_STRING BOOST_PP_STRINGIZE(boost/mpl/list/AUX778076_HEADER)
+#   include AUX778076_INCLUDE_STRING
+#   undef AUX778076_INCLUDE_STRING
+#else
+#   include BOOST_PP_STRINGIZE(boost/mpl/list/AUX778076_HEADER)
+#endif
+
+#   undef AUX778076_HEADER
+
+#undef BOOST_MPL_PREPROCESSED_HEADER

boost/mpl/list/aux_/item.hpp

@@ -0,0 +1,55 @@
+
+#ifndef BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/long.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename Size
+    , typename T
+    , typename Next
+    >
+struct l_item
+{
+// agurt, 17/jul/03: to facilitate the deficient 'is_sequence' implementation 
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
+    typedef int begin;
+#endif
+    typedef aux::list_tag tag;
+    typedef l_item type;
+
+    typedef Size size;
+    typedef T item;
+    typedef Next next;
+};
+
+struct l_end
+{
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
+    typedef int begin;
+#endif
+    typedef aux::list_tag tag;
+    typedef l_end type;
+    typedef long_<0> size;
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED

boost/mpl/list/aux_/iterator.hpp

@@ -0,0 +1,76 @@
+
+#ifndef BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/iterator_tags.hpp>
+#include <boost/mpl/next_prior.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/list/aux_/item.hpp>
+#include <boost/mpl/aux_/na.hpp>
+#include <boost/mpl/aux_/lambda_spec.hpp>
+#include <boost/mpl/aux_/config/ctps.hpp>
+
+namespace boost { namespace mpl {
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template< typename Node >
+struct l_iter
+{
+    typedef aux::l_iter_tag tag;
+    typedef forward_iterator_tag category;
+};
+
+template< typename Node >
+struct deref< l_iter<Node> >
+{
+    typedef typename Node::item type;
+};
+
+template< typename Node >
+struct next< l_iter<Node> >
+{
+    typedef l_iter< typename Node::next > type;
+};
+
+#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+template< typename Node >
+struct l_iter
+{
+    typedef aux::l_iter_tag tag;
+    typedef forward_iterator_tag category;
+    typedef typename Node::item type;
+    typedef l_iter< typename mpl::next<Node>::type > next;
+};
+
+#endif
+
+
+template<> struct l_iter<l_end>
+{
+    typedef aux::l_iter_tag tag;
+    typedef forward_iterator_tag category;
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+    typedef na type;
+    typedef l_iter next;
+#endif
+};
+
+BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, l_iter)
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED

boost/mpl/list/aux_/numbered.hpp

@@ -0,0 +1,68 @@
+
+// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
+
+// Copyright Peter Dimov 2000-2002
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if defined(BOOST_PP_IS_ITERATING)
+
+#include <boost/preprocessor/enum_params.hpp>
+#include <boost/preprocessor/enum_shifted_params.hpp>
+#include <boost/preprocessor/dec.hpp>
+#include <boost/preprocessor/cat.hpp>
+
+#define i BOOST_PP_FRAME_ITERATION(1)
+
+#if i == 1
+
+template<
+      BOOST_PP_ENUM_PARAMS(i, typename T)
+    >
+struct list1
+    : l_item<
+          long_<1>
+        , T0
+        , l_end
+        >
+{
+    typedef list1 type;
+};
+
+#else
+
+#   define MPL_AUX_LIST_TAIL(list, i, T) \
+    BOOST_PP_CAT(list,BOOST_PP_DEC(i))< \
+      BOOST_PP_ENUM_SHIFTED_PARAMS(i, T) \
+    > \
+    /**/
+    
+template<
+      BOOST_PP_ENUM_PARAMS(i, typename T)
+    >
+struct BOOST_PP_CAT(list,i)
+    : l_item<
+          long_<i>
+        , T0
+        , MPL_AUX_LIST_TAIL(list,i,T)
+        >
+{
+    typedef BOOST_PP_CAT(list,i) type;
+};
+
+#   undef MPL_AUX_LIST_TAIL
+
+#endif // i == 1
+
+#undef i
+
+#endif // BOOST_PP_IS_ITERATING

boost/mpl/list/aux_/numbered_c.hpp

@@ -0,0 +1,71 @@
+
+// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if defined(BOOST_PP_IS_ITERATING)
+
+#include <boost/preprocessor/enum_params.hpp>
+#include <boost/preprocessor/enum_shifted_params.hpp>
+#include <boost/preprocessor/dec.hpp>
+#include <boost/preprocessor/cat.hpp>
+
+#define i BOOST_PP_FRAME_ITERATION(1)
+
+#if i == 1
+
+template<
+      typename T
+    , BOOST_PP_ENUM_PARAMS(i, T C)
+    >
+struct list1_c
+    : l_item<
+          long_<1>
+        , integral_c<T,C0>
+        , l_end
+        >
+{
+    typedef list1_c type;
+    typedef T value_type;
+};
+
+#else
+
+#   define MPL_AUX_LIST_C_TAIL(list, i, C) \
+    BOOST_PP_CAT(BOOST_PP_CAT(list,BOOST_PP_DEC(i)),_c)<T, \
+      BOOST_PP_ENUM_SHIFTED_PARAMS(i, C) \
+    > \
+    /**/
+    
+template<
+      typename T
+    , BOOST_PP_ENUM_PARAMS(i, T C)
+    >
+struct BOOST_PP_CAT(BOOST_PP_CAT(list,i),_c)
+    : l_item<
+          long_<i>
+        , integral_c<T,C0>
+        , MPL_AUX_LIST_C_TAIL(list,i,C)
+        >
+{
+    typedef BOOST_PP_CAT(BOOST_PP_CAT(list,i),_c) type;
+    typedef T value_type;
+};
+
+#   undef MPL_AUX_LIST_C_TAIL
+
+#endif // i == 1
+
+#undef i
+
+#endif // BOOST_PP_IS_ITERATING

boost/mpl/list/aux_/pop_front.hpp

@@ -0,0 +1,34 @@
+
+#ifndef BOOST_MPL_LIST_AUX_POP_FRONT_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_POP_FRONT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/pop_front_fwd.hpp>
+#include <boost/mpl/next_prior.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct pop_front_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+    {
+        typedef typename mpl::next<List>::type type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_POP_FRONT_HPP_INCLUDED

boost/mpl/list/aux_/preprocessed/plain/list10.hpp

@@ -0,0 +1,149 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list10.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T0
+    >
+struct list1
+    : l_item<
+          long_<1>
+        , T0
+        , l_end
+        >
+{
+    typedef list1 type;
+};
+
+template<
+      typename T0, typename T1
+    >
+struct list2
+    : l_item<
+          long_<2>
+        , T0
+        , list1<T1>
+        >
+{
+    typedef list2 type;
+};
+
+template<
+      typename T0, typename T1, typename T2
+    >
+struct list3
+    : l_item<
+          long_<3>
+        , T0
+        , list2< T1,T2 >
+        >
+{
+    typedef list3 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3
+    >
+struct list4
+    : l_item<
+          long_<4>
+        , T0
+        , list3< T1,T2,T3 >
+        >
+{
+    typedef list4 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    >
+struct list5
+    : l_item<
+          long_<5>
+        , T0
+        , list4< T1,T2,T3,T4 >
+        >
+{
+    typedef list5 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5
+    >
+struct list6
+    : l_item<
+          long_<6>
+        , T0
+        , list5< T1,T2,T3,T4,T5 >
+        >
+{
+    typedef list6 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6
+    >
+struct list7
+    : l_item<
+          long_<7>
+        , T0
+        , list6< T1,T2,T3,T4,T5,T6 >
+        >
+{
+    typedef list7 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7
+    >
+struct list8
+    : l_item<
+          long_<8>
+        , T0
+        , list7< T1,T2,T3,T4,T5,T6,T7 >
+        >
+{
+    typedef list8 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8
+    >
+struct list9
+    : l_item<
+          long_<9>
+        , T0
+        , list8< T1,T2,T3,T4,T5,T6,T7,T8 >
+        >
+{
+    typedef list9 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    >
+struct list10
+    : l_item<
+          long_<10>
+        , T0
+        , list9< T1,T2,T3,T4,T5,T6,T7,T8,T9 >
+        >
+{
+    typedef list10 type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list10_c.hpp

@@ -0,0 +1,164 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list10_c.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T
+    , T C0
+    >
+struct list1_c
+    : l_item<
+          long_<1>
+        , integral_c< T,C0 >
+        , l_end
+        >
+{
+    typedef list1_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1
+    >
+struct list2_c
+    : l_item<
+          long_<2>
+        , integral_c< T,C0 >
+        , list1_c< T,C1 >
+        >
+{
+    typedef list2_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2
+    >
+struct list3_c
+    : l_item<
+          long_<3>
+        , integral_c< T,C0 >
+        , list2_c< T,C1,C2 >
+        >
+{
+    typedef list3_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3
+    >
+struct list4_c
+    : l_item<
+          long_<4>
+        , integral_c< T,C0 >
+        , list3_c< T,C1,C2,C3 >
+        >
+{
+    typedef list4_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4
+    >
+struct list5_c
+    : l_item<
+          long_<5>
+        , integral_c< T,C0 >
+        , list4_c< T,C1,C2,C3,C4 >
+        >
+{
+    typedef list5_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5
+    >
+struct list6_c
+    : l_item<
+          long_<6>
+        , integral_c< T,C0 >
+        , list5_c< T,C1,C2,C3,C4,C5 >
+        >
+{
+    typedef list6_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6
+    >
+struct list7_c
+    : l_item<
+          long_<7>
+        , integral_c< T,C0 >
+        , list6_c< T,C1,C2,C3,C4,C5,C6 >
+        >
+{
+    typedef list7_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7
+    >
+struct list8_c
+    : l_item<
+          long_<8>
+        , integral_c< T,C0 >
+        , list7_c< T,C1,C2,C3,C4,C5,C6,C7 >
+        >
+{
+    typedef list8_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8
+    >
+struct list9_c
+    : l_item<
+          long_<9>
+        , integral_c< T,C0 >
+        , list8_c< T,C1,C2,C3,C4,C5,C6,C7,C8 >
+        >
+{
+    typedef list9_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9
+    >
+struct list10_c
+    : l_item<
+          long_<10>
+        , integral_c< T,C0 >
+        , list9_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9 >
+        >
+{
+    typedef list10_c type;
+    typedef T value_type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list20.hpp

@@ -0,0 +1,169 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list20.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10
+    >
+struct list11
+    : l_item<
+          long_<11>
+        , T0
+        , list10< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10 >
+        >
+{
+    typedef list11 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11
+    >
+struct list12
+    : l_item<
+          long_<12>
+        , T0
+        , list11< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11 >
+        >
+{
+    typedef list12 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12
+    >
+struct list13
+    : l_item<
+          long_<13>
+        , T0
+        , list12< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12 >
+        >
+{
+    typedef list13 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13
+    >
+struct list14
+    : l_item<
+          long_<14>
+        , T0
+        , list13< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13 >
+        >
+{
+    typedef list14 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    >
+struct list15
+    : l_item<
+          long_<15>
+        , T0
+        , list14< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14 >
+        >
+{
+    typedef list15 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15
+    >
+struct list16
+    : l_item<
+          long_<16>
+        , T0
+        , list15< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15 >
+        >
+{
+    typedef list16 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16
+    >
+struct list17
+    : l_item<
+          long_<17>
+        , T0
+        , list16< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16 >
+        >
+{
+    typedef list17 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17
+    >
+struct list18
+    : l_item<
+          long_<18>
+        , T0
+        , list17< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17 >
+        >
+{
+    typedef list18 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18
+    >
+struct list19
+    : l_item<
+          long_<19>
+        , T0
+        , list18< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18 >
+        >
+{
+    typedef list19 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    >
+struct list20
+    : l_item<
+          long_<20>
+        , T0
+        , list19< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19 >
+        >
+{
+    typedef list20 type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list20_c.hpp

@@ -0,0 +1,173 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list20_c.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    >
+struct list11_c
+    : l_item<
+          long_<11>
+        , integral_c< T,C0 >
+        , list10_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10 >
+        >
+{
+    typedef list11_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11
+    >
+struct list12_c
+    : l_item<
+          long_<12>
+        , integral_c< T,C0 >
+        , list11_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11 >
+        >
+{
+    typedef list12_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12
+    >
+struct list13_c
+    : l_item<
+          long_<13>
+        , integral_c< T,C0 >
+        , list12_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12 >
+        >
+{
+    typedef list13_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13
+    >
+struct list14_c
+    : l_item<
+          long_<14>
+        , integral_c< T,C0 >
+        , list13_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13 >
+        >
+{
+    typedef list14_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14
+    >
+struct list15_c
+    : l_item<
+          long_<15>
+        , integral_c< T,C0 >
+        , list14_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14 >
+        >
+{
+    typedef list15_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15
+    >
+struct list16_c
+    : l_item<
+          long_<16>
+        , integral_c< T,C0 >
+        , list15_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15 >
+        >
+{
+    typedef list16_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16
+    >
+struct list17_c
+    : l_item<
+          long_<17>
+        , integral_c< T,C0 >
+        , list16_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16 >
+        >
+{
+    typedef list17_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17
+    >
+struct list18_c
+    : l_item<
+          long_<18>
+        , integral_c< T,C0 >
+        , list17_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17 >
+        >
+{
+    typedef list18_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18
+    >
+struct list19_c
+    : l_item<
+          long_<19>
+        , integral_c< T,C0 >
+        , list18_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18 >
+        >
+{
+    typedef list19_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19
+    >
+struct list20_c
+    : l_item<
+          long_<20>
+        , integral_c< T,C0 >
+        , list19_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19 >
+        >
+{
+    typedef list20_c type;
+    typedef T value_type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list30.hpp

@@ -0,0 +1,189 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list30.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20
+    >
+struct list21
+    : l_item<
+          long_<21>
+        , T0
+        , list20< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20 >
+        >
+{
+    typedef list21 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21
+    >
+struct list22
+    : l_item<
+          long_<22>
+        , T0
+        , list21< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21 >
+        >
+{
+    typedef list22 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22
+    >
+struct list23
+    : l_item<
+          long_<23>
+        , T0
+        , list22< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22 >
+        >
+{
+    typedef list23 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23
+    >
+struct list24
+    : l_item<
+          long_<24>
+        , T0
+        , list23< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23 >
+        >
+{
+    typedef list24 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    >
+struct list25
+    : l_item<
+          long_<25>
+        , T0
+        , list24< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24 >
+        >
+{
+    typedef list25 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25
+    >
+struct list26
+    : l_item<
+          long_<26>
+        , T0
+        , list25< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25 >
+        >
+{
+    typedef list26 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26
+    >
+struct list27
+    : l_item<
+          long_<27>
+        , T0
+        , list26< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26 >
+        >
+{
+    typedef list27 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27
+    >
+struct list28
+    : l_item<
+          long_<28>
+        , T0
+        , list27< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27 >
+        >
+{
+    typedef list28 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28
+    >
+struct list29
+    : l_item<
+          long_<29>
+        , T0
+        , list28< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28 >
+        >
+{
+    typedef list29 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    >
+struct list30
+    : l_item<
+          long_<30>
+        , T0
+        , list29< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29 >
+        >
+{
+    typedef list30 type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list30_c.hpp

@@ -0,0 +1,183 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list30_c.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    >
+struct list21_c
+    : l_item<
+          long_<21>
+        , integral_c< T,C0 >
+        , list20_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20 >
+        >
+{
+    typedef list21_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21
+    >
+struct list22_c
+    : l_item<
+          long_<22>
+        , integral_c< T,C0 >
+        , list21_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21 >
+        >
+{
+    typedef list22_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22
+    >
+struct list23_c
+    : l_item<
+          long_<23>
+        , integral_c< T,C0 >
+        , list22_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22 >
+        >
+{
+    typedef list23_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23
+    >
+struct list24_c
+    : l_item<
+          long_<24>
+        , integral_c< T,C0 >
+        , list23_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23 >
+        >
+{
+    typedef list24_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24
+    >
+struct list25_c
+    : l_item<
+          long_<25>
+        , integral_c< T,C0 >
+        , list24_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24 >
+        >
+{
+    typedef list25_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25
+    >
+struct list26_c
+    : l_item<
+          long_<26>
+        , integral_c< T,C0 >
+        , list25_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25 >
+        >
+{
+    typedef list26_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26
+    >
+struct list27_c
+    : l_item<
+          long_<27>
+        , integral_c< T,C0 >
+        , list26_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26 >
+        >
+{
+    typedef list27_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27
+    >
+struct list28_c
+    : l_item<
+          long_<28>
+        , integral_c< T,C0 >
+        , list27_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27 >
+        >
+{
+    typedef list28_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28
+    >
+struct list29_c
+    : l_item<
+          long_<29>
+        , integral_c< T,C0 >
+        , list28_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28 >
+        >
+{
+    typedef list29_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29
+    >
+struct list30_c
+    : l_item<
+          long_<30>
+        , integral_c< T,C0 >
+        , list29_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29 >
+        >
+{
+    typedef list30_c type;
+    typedef T value_type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list40.hpp

@@ -0,0 +1,209 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list40.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30
+    >
+struct list31
+    : l_item<
+          long_<31>
+        , T0
+        , list30< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30 >
+        >
+{
+    typedef list31 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31
+    >
+struct list32
+    : l_item<
+          long_<32>
+        , T0
+        , list31< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31 >
+        >
+{
+    typedef list32 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32
+    >
+struct list33
+    : l_item<
+          long_<33>
+        , T0
+        , list32< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32 >
+        >
+{
+    typedef list33 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33
+    >
+struct list34
+    : l_item<
+          long_<34>
+        , T0
+        , list33< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33 >
+        >
+{
+    typedef list34 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    >
+struct list35
+    : l_item<
+          long_<35>
+        , T0
+        , list34< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34 >
+        >
+{
+    typedef list35 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35
+    >
+struct list36
+    : l_item<
+          long_<36>
+        , T0
+        , list35< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35 >
+        >
+{
+    typedef list36 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36
+    >
+struct list37
+    : l_item<
+          long_<37>
+        , T0
+        , list36< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36 >
+        >
+{
+    typedef list37 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37
+    >
+struct list38
+    : l_item<
+          long_<38>
+        , T0
+        , list37< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37 >
+        >
+{
+    typedef list38 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38
+    >
+struct list39
+    : l_item<
+          long_<39>
+        , T0
+        , list38< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38 >
+        >
+{
+    typedef list39 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    >
+struct list40
+    : l_item<
+          long_<40>
+        , T0
+        , list39< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39 >
+        >
+{
+    typedef list40 type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list40_c.hpp

@@ -0,0 +1,193 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list40_c.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    >
+struct list31_c
+    : l_item<
+          long_<31>
+        , integral_c< T,C0 >
+        , list30_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30 >
+        >
+{
+    typedef list31_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31
+    >
+struct list32_c
+    : l_item<
+          long_<32>
+        , integral_c< T,C0 >
+        , list31_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31 >
+        >
+{
+    typedef list32_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32
+    >
+struct list33_c
+    : l_item<
+          long_<33>
+        , integral_c< T,C0 >
+        , list32_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32 >
+        >
+{
+    typedef list33_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33
+    >
+struct list34_c
+    : l_item<
+          long_<34>
+        , integral_c< T,C0 >
+        , list33_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33 >
+        >
+{
+    typedef list34_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34
+    >
+struct list35_c
+    : l_item<
+          long_<35>
+        , integral_c< T,C0 >
+        , list34_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34 >
+        >
+{
+    typedef list35_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35
+    >
+struct list36_c
+    : l_item<
+          long_<36>
+        , integral_c< T,C0 >
+        , list35_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35 >
+        >
+{
+    typedef list36_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36
+    >
+struct list37_c
+    : l_item<
+          long_<37>
+        , integral_c< T,C0 >
+        , list36_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36 >
+        >
+{
+    typedef list37_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37
+    >
+struct list38_c
+    : l_item<
+          long_<38>
+        , integral_c< T,C0 >
+        , list37_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37 >
+        >
+{
+    typedef list38_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38
+    >
+struct list39_c
+    : l_item<
+          long_<39>
+        , integral_c< T,C0 >
+        , list38_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38 >
+        >
+{
+    typedef list39_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39
+    >
+struct list40_c
+    : l_item<
+          long_<40>
+        , integral_c< T,C0 >
+        , list39_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39 >
+        >
+{
+    typedef list40_c type;
+    typedef T value_type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list50.hpp

@@ -0,0 +1,229 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list50.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40
+    >
+struct list41
+    : l_item<
+          long_<41>
+        , T0
+        , list40< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40 >
+        >
+{
+    typedef list41 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41
+    >
+struct list42
+    : l_item<
+          long_<42>
+        , T0
+        , list41< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41 >
+        >
+{
+    typedef list42 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42
+    >
+struct list43
+    : l_item<
+          long_<43>
+        , T0
+        , list42< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42 >
+        >
+{
+    typedef list43 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43
+    >
+struct list44
+    : l_item<
+          long_<44>
+        , T0
+        , list43< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43 >
+        >
+{
+    typedef list44 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    >
+struct list45
+    : l_item<
+          long_<45>
+        , T0
+        , list44< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44 >
+        >
+{
+    typedef list45 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    , typename T45
+    >
+struct list46
+    : l_item<
+          long_<46>
+        , T0
+        , list45< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44,T45 >
+        >
+{
+    typedef list46 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    , typename T45, typename T46
+    >
+struct list47
+    : l_item<
+          long_<47>
+        , T0
+        , list46< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44,T45,T46 >
+        >
+{
+    typedef list47 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    , typename T45, typename T46, typename T47
+    >
+struct list48
+    : l_item<
+          long_<48>
+        , T0
+        , list47< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44,T45,T46,T47 >
+        >
+{
+    typedef list48 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    , typename T45, typename T46, typename T47, typename T48
+    >
+struct list49
+    : l_item<
+          long_<49>
+        , T0
+        , list48< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44,T45,T46,T47,T48 >
+        >
+{
+    typedef list49 type;
+};
+
+template<
+      typename T0, typename T1, typename T2, typename T3, typename T4
+    , typename T5, typename T6, typename T7, typename T8, typename T9
+    , typename T10, typename T11, typename T12, typename T13, typename T14
+    , typename T15, typename T16, typename T17, typename T18, typename T19
+    , typename T20, typename T21, typename T22, typename T23, typename T24
+    , typename T25, typename T26, typename T27, typename T28, typename T29
+    , typename T30, typename T31, typename T32, typename T33, typename T34
+    , typename T35, typename T36, typename T37, typename T38, typename T39
+    , typename T40, typename T41, typename T42, typename T43, typename T44
+    , typename T45, typename T46, typename T47, typename T48, typename T49
+    >
+struct list50
+    : l_item<
+          long_<50>
+        , T0
+        , list49< T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,T39,T40,T41,T42,T43,T44,T45,T46,T47,T48,T49 >
+        >
+{
+    typedef list50 type;
+};
+
+}}

boost/mpl/list/aux_/preprocessed/plain/list50_c.hpp

@@ -0,0 +1,203 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "boost/mpl/list/list50_c.hpp" header
+// -- DO NOT modify by hand!
+
+namespace boost { namespace mpl {
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    >
+struct list41_c
+    : l_item<
+          long_<41>
+        , integral_c< T,C0 >
+        , list40_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40 >
+        >
+{
+    typedef list41_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41
+    >
+struct list42_c
+    : l_item<
+          long_<42>
+        , integral_c< T,C0 >
+        , list41_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41 >
+        >
+{
+    typedef list42_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42
+    >
+struct list43_c
+    : l_item<
+          long_<43>
+        , integral_c< T,C0 >
+        , list42_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42 >
+        >
+{
+    typedef list43_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43
+    >
+struct list44_c
+    : l_item<
+          long_<44>
+        , integral_c< T,C0 >
+        , list43_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43 >
+        >
+{
+    typedef list44_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44
+    >
+struct list45_c
+    : l_item<
+          long_<45>
+        , integral_c< T,C0 >
+        , list44_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44 >
+        >
+{
+    typedef list45_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44, T C45
+    >
+struct list46_c
+    : l_item<
+          long_<46>
+        , integral_c< T,C0 >
+        , list45_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44,C45 >
+        >
+{
+    typedef list46_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44, T C45, T C46
+    >
+struct list47_c
+    : l_item<
+          long_<47>
+        , integral_c< T,C0 >
+        , list46_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44,C45,C46 >
+        >
+{
+    typedef list47_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44, T C45, T C46, T C47
+    >
+struct list48_c
+    : l_item<
+          long_<48>
+        , integral_c< T,C0 >
+        , list47_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44,C45,C46,C47 >
+        >
+{
+    typedef list48_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44, T C45, T C46, T C47, T C48
+    >
+struct list49_c
+    : l_item<
+          long_<49>
+        , integral_c< T,C0 >
+        , list48_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44,C45,C46,C47,C48 >
+        >
+{
+    typedef list49_c type;
+    typedef T value_type;
+};
+
+template<
+      typename T
+    , T C0, T C1, T C2, T C3, T C4, T C5, T C6, T C7, T C8, T C9, T C10
+    , T C11, T C12, T C13, T C14, T C15, T C16, T C17, T C18, T C19, T C20
+    , T C21, T C22, T C23, T C24, T C25, T C26, T C27, T C28, T C29, T C30
+    , T C31, T C32, T C33, T C34, T C35, T C36, T C37, T C38, T C39, T C40
+    , T C41, T C42, T C43, T C44, T C45, T C46, T C47, T C48, T C49
+    >
+struct list50_c
+    : l_item<
+          long_<50>
+        , integral_c< T,C0 >
+        , list49_c< T,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,C19,C20,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36,C37,C38,C39,C40,C41,C42,C43,C44,C45,C46,C47,C48,C49 >
+        >
+{
+    typedef list50_c type;
+    typedef T value_type;
+};
+
+}}

boost/mpl/list/aux_/push_back.hpp

@@ -0,0 +1,36 @@
+
+#ifndef BOOST_MPL_LIST_AUX_PUSH_BACK_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_PUSH_BACK_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/push_back_fwd.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template< typename Tag > struct has_push_back_impl;
+
+template<>
+struct has_push_back_impl< aux::list_tag >
+{
+    template< typename Seq > struct apply
+        : false_
+    {
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_PUSH_BACK_HPP_INCLUDED

boost/mpl/list/aux_/push_front.hpp

@@ -0,0 +1,39 @@
+
+#ifndef BOOST_MPL_LIST_AUX_PUSH_FRONT_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_PUSH_FRONT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/push_front_fwd.hpp>
+#include <boost/mpl/next.hpp>
+#include <boost/mpl/list/aux_/item.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct push_front_impl< aux::list_tag >
+{
+    template< typename List, typename T > struct apply
+    {
+        typedef l_item<
+              typename next<typename List::size>::type
+            , T
+            , typename List::type
+            > type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_PUSH_FRONT_HPP_INCLUDED

boost/mpl/list/aux_/size.hpp

@@ -0,0 +1,33 @@
+
+#ifndef BOOST_MPL_LIST_AUX_SIZE_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_SIZE_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/size_fwd.hpp>
+#include <boost/mpl/list/aux_/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct size_impl< aux::list_tag >
+{
+    template< typename List > struct apply
+        : List::size
+    {
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_AUX_SIZE_HPP_INCLUDED

boost/mpl/list/aux_/tag.hpp

@@ -0,0 +1,24 @@
+
+#ifndef BOOST_MPL_LIST_AUX_TAG_HPP_INCLUDED
+#define BOOST_MPL_LIST_AUX_TAG_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+namespace boost { namespace mpl { namespace aux {
+
+struct list_tag;
+struct l_iter_tag;
+
+}}}
+
+#endif // BOOST_MPL_LIST_AUX_TAG_HPP_INCLUDED

boost/mpl/list/list0.hpp

@@ -0,0 +1,42 @@
+
+#ifndef BOOST_MPL_LIST_LIST0_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST0_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/long.hpp>
+#include <boost/mpl/aux_/na.hpp>
+#include <boost/mpl/list/aux_/push_front.hpp>
+#include <boost/mpl/list/aux_/pop_front.hpp>
+#include <boost/mpl/list/aux_/push_back.hpp>
+#include <boost/mpl/list/aux_/front.hpp>
+#include <boost/mpl/list/aux_/clear.hpp>
+#include <boost/mpl/list/aux_/O1_size.hpp>
+#include <boost/mpl/list/aux_/size.hpp>
+#include <boost/mpl/list/aux_/empty.hpp>
+#include <boost/mpl/list/aux_/begin_end.hpp>
+#include <boost/mpl/list/aux_/item.hpp>
+
+namespace boost { namespace mpl {
+
+template< typename Dummy = na > struct list0;
+
+template<> struct list0<na>
+    : l_end
+{
+    typedef l_end type;
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_LIST0_HPP_INCLUDED

boost/mpl/list/list0_c.hpp

@@ -0,0 +1,31 @@
+
+#ifndef BOOST_MPL_LIST_LIST0_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST0_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/list/list0.hpp>
+#include <boost/mpl/integral_c.hpp>
+
+namespace boost { namespace mpl {
+
+template< typename T > struct list0_c
+    : l_end
+{
+    typedef l_end type;
+    typedef T value_type;
+};
+
+}}
+
+#endif // BOOST_MPL_LIST_LIST0_C_HPP_INCLUDED

boost/mpl/list/list10.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST10_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST10_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list0.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+    && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list10.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(1, 10, <boost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST10_HPP_INCLUDED

boost/mpl/list/list10_c.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST10_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST10_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list0_c.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list10_c.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(1, 10, <boost/mpl/list/aux_/numbered_c.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST10_C_HPP_INCLUDED

boost/mpl/list/list20.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST20_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST20_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list10.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list20.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(11, 20, <boost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST20_HPP_INCLUDED

boost/mpl/list/list20_c.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST20_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST20_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list10_c.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list20_c.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(11, 20, <boost/mpl/list/aux_/numbered_c.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST20_C_HPP_INCLUDED

boost/mpl/list/list30.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST30_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST30_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list20.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list30.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(21, 30, <boost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST30_HPP_INCLUDED

boost/mpl/list/list30_c.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST30_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST30_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list20_c.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list30_c.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(21, 30, <boost/mpl/list/aux_/numbered_c.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST30_C_HPP_INCLUDED

boost/mpl/list/list40.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST40_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST40_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list30.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list40.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(31, 40, <boost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST40_HPP_INCLUDED

boost/mpl/list/list40_c.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST40_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST40_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list30_c.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list40_c.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(31, 40, <boost/mpl/list/aux_/numbered_c.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST40_C_HPP_INCLUDED

boost/mpl/list/list50.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST50_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST50_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list40.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list50.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(41, 50, <boost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST50_HPP_INCLUDED

boost/mpl/list/list50_c.hpp

@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST50_C_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST50_C_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <boost/mpl/list/list40_c.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list50_c.hpp
+#   include <boost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <boost/preprocessor/iterate.hpp>
+
+namespace boost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(41, 50, <boost/mpl/list/aux_/numbered_c.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST50_C_HPP_INCLUDED

boost/mpl/max_element.hpp

@@ -0,0 +1,72 @@
+
+#ifndef BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
+#define BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/less.hpp>
+#include <boost/mpl/iter_fold.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/mpl/aux_/common_name_wknd.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+
+namespace boost { namespace mpl {
+
+BOOST_MPL_AUX_COMMON_NAME_WKND(max_element)
+
+namespace aux {
+
+template< typename Predicate >
+struct select_max
+{
+    template< typename OldIterator, typename Iterator >
+    struct apply
+    {
+        typedef typename apply2<
+              Predicate
+            , typename deref<OldIterator>::type
+            , typename deref<Iterator>::type
+            >::type condition_;
+
+        typedef typename if_<
+              condition_
+            , Iterator
+            , OldIterator
+            >::type type;
+    };
+};
+
+} // namespace aux 
+
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
+    , typename Predicate = less<_,_>
+    >
+struct max_element
+    : iter_fold<
+          Sequence
+        , typename begin<Sequence>::type
+        , protect< aux::select_max<Predicate> >
+        >
+{
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, max_element)
+
+}}
+
+#endif // BOOST_MPL_MAX_ELEMENT_HPP_INCLUDED

boost/mpl/min_max.hpp

@@ -0,0 +1,46 @@
+
+#ifndef BOOST_MPL_MIN_MAX_HPP_INCLUDED
+#define BOOST_MPL_MIN_MAX_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2008
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/less.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(N1)
+    , typename BOOST_MPL_AUX_NA_PARAM(N2)
+    >
+struct min
+    : if_< less<N1,N2>,N1,N2 >
+{
+};
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(N1)
+    , typename BOOST_MPL_AUX_NA_PARAM(N2)
+    >
+struct max
+    : if_< less<N1,N2>,N2,N1 >
+{
+};
+
+BOOST_MPL_AUX_NA_SPEC(2, min)
+BOOST_MPL_AUX_NA_SPEC(2, max)
+
+}}
+
+#endif // BOOST_MPL_MIN_MAX_HPP_INCLUDED

boost/mpl/pair_view.hpp

@@ -0,0 +1,169 @@
+
+#ifndef BOOST_MPL_PAIR_VIEW_HPP_INCLUDED
+#define BOOST_MPL_PAIR_VIEW_HPP_INCLUDED
+
+// Copyright David Abrahams 2003-2004
+// Copyright Aleksey Gurtovoy 2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/iterator_category.hpp>
+#include <boost/mpl/advance.hpp>
+#include <boost/mpl/distance.hpp>
+#include <boost/mpl/next_prior.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/min_max.hpp>
+#include <boost/mpl/pair.hpp>
+#include <boost/mpl/iterator_tags.hpp>
+#include <boost/mpl/aux_/config/ctps.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+
+namespace boost { namespace mpl {
+
+namespace aux {
+struct pair_iter_tag;
+
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template< typename Iter1, typename Iter2, typename Category >
+struct pair_iter;
+
+template< typename Category > struct prior_pair_iter
+{
+    template< typename Iter1, typename Iter2 > struct apply
+    {
+        typedef typename mpl::prior<Iter1>::type i1_;
+        typedef typename mpl::prior<Iter2>::type i2_;
+        typedef pair_iter<i1_,i2_,Category> type;
+    };
+};
+
+template<> struct prior_pair_iter<forward_iterator_tag>
+{
+    template< typename Iter1, typename Iter2 > struct apply
+    {
+        typedef pair_iter<Iter1,Iter2,forward_iterator_tag> type;
+    };
+};
+
+#endif
+}
+
+template< 
+      typename Iter1
+    , typename Iter2
+    , typename Category
+    >
+struct pair_iter
+{
+    typedef aux::pair_iter_tag tag;
+    typedef Category category;
+    typedef Iter1 first;
+    typedef Iter2 second;
+    
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+    typedef pair< 
+          typename deref<Iter1>::type
+        , typename deref<Iter2>::type
+        > type;
+
+    typedef typename mpl::next<Iter1>::type i1_;
+    typedef typename mpl::next<Iter2>::type i2_;
+    typedef pair_iter<i1_,i2_,Category> next;
+    
+    typedef apply_wrap2< aux::prior_pair_iter<Category>,Iter1,Iter2 >::type prior;
+#endif
+};
+
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template< typename Iter1, typename Iter2, typename C >
+struct deref< pair_iter<Iter1,Iter2,C> >
+{
+    typedef pair< 
+          typename deref<Iter1>::type
+        , typename deref<Iter2>::type
+        > type;
+};
+
+template< typename Iter1, typename Iter2, typename C >
+struct next< pair_iter<Iter1,Iter2,C> >
+{
+    typedef typename mpl::next<Iter1>::type i1_;
+    typedef typename mpl::next<Iter2>::type i2_;
+    typedef pair_iter<i1_,i2_,C> type;
+};
+
+template< typename Iter1, typename Iter2, typename C >
+struct prior< pair_iter<Iter1,Iter2,C> >
+{
+    typedef typename mpl::prior<Iter1>::type i1_;
+    typedef typename mpl::prior<Iter2>::type i2_;
+    typedef pair_iter<i1_,i2_,C> type;
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+
+template<> struct advance_impl<aux::pair_iter_tag>
+{
+    template< typename Iter, typename D > struct apply
+    {
+        typedef typename mpl::advance< typename Iter::first,D >::type i1_;
+        typedef typename mpl::advance< typename Iter::second,D >::type i2_;
+        typedef pair_iter<i1_,i2_,typename Iter::category> type;
+    };
+};
+
+template<> struct distance_impl<aux::pair_iter_tag>
+{
+    template< typename Iter1, typename Iter2 > struct apply
+    {
+        // agurt, 10/nov/04: MSVC 6.5 ICE-s on forwarding
+        typedef typename mpl::distance<
+              typename first<Iter1>::type
+            , typename first<Iter2>::type
+            >::type type;
+    };
+};
+
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Sequence1)
+    , typename BOOST_MPL_AUX_NA_PARAM(Sequence2)
+    >
+struct pair_view
+{
+    typedef nested_begin_end_tag tag;
+
+    typedef typename begin<Sequence1>::type iter1_;
+    typedef typename begin<Sequence2>::type iter2_;
+    typedef typename min<
+          typename iterator_category<iter1_>::type
+        , typename iterator_category<iter2_>::type
+        >::type category_;
+    
+    typedef pair_iter<iter1_,iter2_,category_> begin;
+    
+    typedef pair_iter<
+          typename end<Sequence1>::type
+        , typename end<Sequence2>::type
+        , category_
+        > end;
+};
+
+BOOST_MPL_AUX_NA_SPEC(2, pair_view)
+
+}}
+
+#endif // BOOST_MPL_PAIR_VIEW_HPP_INCLUDED

boost/mpl/sizeof.hpp

@@ -0,0 +1,36 @@
+
+#ifndef BOOST_MPL_SIZEOF_HPP_INCLUDED
+#define BOOST_MPL_SIZEOF_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2003
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/size_t.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(T)
+    >
+struct sizeof_
+    : mpl::size_t< sizeof(T) >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,sizeof_,(T))
+};
+
+BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, sizeof_)
+
+}}
+
+#endif // BOOST_MPL_SIZEOF_HPP_INCLUDED

boost/mpl/transform.hpp

@@ -0,0 +1,145 @@
+
+#ifndef BOOST_MPL_TRANSFORM_HPP_INCLUDED
+#define BOOST_MPL_TRANSFORM_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+// Copyright David Abrahams 2003-2004
+//
+// 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/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/fold.hpp>
+#include <boost/mpl/reverse_fold.hpp>
+#include <boost/mpl/pair_view.hpp>
+#include <boost/mpl/is_sequence.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/lambda.hpp>
+#include <boost/mpl/bind.hpp>
+#include <boost/mpl/or.hpp>
+#include <boost/mpl/not.hpp>
+#include <boost/mpl/aux_/na.hpp>
+#include <boost/mpl/aux_/inserter_algorithm.hpp>
+
+namespace boost { namespace mpl {
+
+namespace aux { 
+
+template< 
+      typename Seq
+    , typename Op
+    , typename In
+    >
+struct transform1_impl
+    : fold< 
+          Seq
+        , typename In::state
+        , bind2< typename lambda< typename In::operation >::type
+            , _1
+            , bind1< typename lambda<Op>::type, _2>
+            > 
+        >
+{
+};
+
+template< 
+      typename Seq
+    , typename Op
+    , typename In
+    >
+struct reverse_transform1_impl
+    : reverse_fold< 
+          Seq
+        , typename In::state
+        , bind2< typename lambda< typename In::operation >::type
+            , _1
+            , bind1< typename lambda<Op>::type, _2>
+            > 
+        >
+{
+};
+
+template< 
+      typename Seq1
+    , typename Seq2
+    , typename Op
+    , typename In
+    >
+struct transform2_impl
+    : fold< 
+          pair_view<Seq1,Seq2>
+        , typename In::state
+        , bind2< typename lambda< typename In::operation >::type
+            , _1
+            , bind2<
+                  typename lambda<Op>::type
+                , bind1<first<>,_2>
+                , bind1<second<>,_2>
+                >
+            > 
+        >
+{
+};
+
+template< 
+      typename Seq1
+    , typename Seq2
+    , typename Op
+    , typename In
+    >
+struct reverse_transform2_impl
+    : reverse_fold< 
+          pair_view<Seq1,Seq2>
+        , typename In::state
+        , bind2< typename lambda< typename In::operation >::type
+            , _1
+            , bind2< typename lambda< Op >::type
+                , bind1<first<>,_2>
+                , bind1<second<>,_2>
+                >
+            > 
+        >
+{
+};
+
+} // namespace aux 
+
+BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(3, transform1)                    
+BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, transform2)
+    
+#define AUX778076_TRANSFORM_DEF(name)                                   \
+template<                                                               \
+      typename BOOST_MPL_AUX_NA_PARAM(Seq1)                             \
+    , typename BOOST_MPL_AUX_NA_PARAM(Seq2OrOperation)                  \
+    , typename BOOST_MPL_AUX_NA_PARAM(OperationOrInserter)              \
+    , typename BOOST_MPL_AUX_NA_PARAM(Inserter)                         \
+    >                                                                   \
+struct name                                                             \
+{                                                                       \
+    typedef typename eval_if<                                           \
+          or_<                                                          \
+              is_na<OperationOrInserter>                                \
+            , is_lambda_expression< Seq2OrOperation >                   \
+            , not_< is_sequence<Seq2OrOperation> >                      \
+            >                                                           \
+        , name##1<Seq1,Seq2OrOperation,OperationOrInserter>             \
+        , name##2<Seq1,Seq2OrOperation,OperationOrInserter,Inserter>    \
+        >::type type;                                                   \
+};                                                                      \
+BOOST_MPL_AUX_NA_SPEC(4, name)                                          \
+/**/
+
+AUX778076_TRANSFORM_DEF(transform)
+AUX778076_TRANSFORM_DEF(reverse_transform)
+
+#undef AUX778076_TRANSFORM_DEF
+
+}}
+
+#endif // BOOST_MPL_TRANSFORM_HPP_INCLUDED

boost/type_index.hpp

@@ -0,0 +1,265 @@
+//
+// Copyright (c) Antony Polukhin, 2012-2014.
+//
+// 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)
+//
+
+#ifndef BOOST_TYPE_INDEX_HPP
+#define BOOST_TYPE_INDEX_HPP
+
+/// \file boost/type_index.hpp
+/// \brief Includes minimal set of headers required to use the Boost.TypeIndex library.
+///
+/// By inclusion of this file most optimal type index classes will be included and used 
+/// as a boost::typeindex::type_index and boost::typeindex::type_info.
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
+
+#if defined(BOOST_TYPE_INDEX_USER_TYPEINDEX)
+#   include BOOST_TYPE_INDEX_USER_TYPEINDEX
+#   ifdef BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#       pragma detect_mismatch( "boost__type_index__abi", "user defined type_index class is used: " BOOST_STRINGIZE(BOOST_TYPE_INDEX_USER_TYPEINDEX))
+#   endif
+#elif (!defined(BOOST_NO_RTTI) && !defined(BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY)) || defined(BOOST_MSVC)
+#   include <boost/type_index/stl_type_index.hpp>
+#   ifdef BOOST_NO_RTTI
+#       include <boost/type_index/detail/stl_register_class.hpp>
+#       ifdef BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#           pragma detect_mismatch( "boost__type_index__abi", "RTTI is off - typeid() is used only for templates")
+#       endif
+#   else
+#       ifdef BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#           pragma detect_mismatch( "boost__type_index__abi", "RTTI is used")
+#       endif
+#   endif
+#else
+#   include <boost/type_index/ctti_type_index.hpp>
+#   include <boost/type_index/detail/ctti_register_class.hpp>
+#   ifdef BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#       pragma detect_mismatch( "boost__type_index__abi", "RTTI is off - using CTTI")
+#   endif
+#endif
+
+#ifndef BOOST_TYPE_INDEX_REGISTER_CLASS
+#define BOOST_TYPE_INDEX_REGISTER_CLASS
+#endif
+
+namespace boost { namespace typeindex {
+
+#if defined(BOOST_TYPE_INDEX_DOXYGEN_INVOKED)
+
+/// \def BOOST_TYPE_INDEX_FUNCTION_SIGNATURE
+/// BOOST_TYPE_INDEX_FUNCTION_SIGNATURE is used by boost::typeindex::ctti_type_index class to
+/// deduce the name of a type. If your compiler is not recognized
+/// by the TypeIndex library and you wish to work with boost::typeindex::ctti_type_index, you may
+/// define this macro by yourself.
+///
+/// BOOST_TYPE_INDEX_FUNCTION_SIGNATURE must be defined to a compiler specific macro
+/// that outputs the \b whole function signature \b including \b template \b parameters.
+///
+/// If your compiler is not recognised and BOOST_TYPE_INDEX_FUNCTION_SIGNATURE is not defined,
+/// then a compile-time error will arise at any attempt to use boost::typeindex::ctti_type_index classes.
+///
+/// See BOOST_TYPE_INDEX_REGISTER_CTTI_PARSING_PARAMS and BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING
+/// for an information of how to tune the implementation to make a nice pretty_name() output.
+#define BOOST_TYPE_INDEX_FUNCTION_SIGNATURE BOOST_CURRENT_FUNCTION
+
+/// \def BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING
+/// This is a helper macro for making correct pretty_names() with RTTI off.
+///
+/// BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING macro may be defined to
+/// '(begin_skip, end_skip, runtime_skip, runtime_skip_until)' with parameters for adding a
+/// support for compilers, that by default are not recognized by TypeIndex library.
+///
+/// \b Example:
+///
+/// Imagine the situation when
+/// \code boost::typeindex::ctti_type_index::type_id<int>().pretty_name() \endcode
+/// returns the following string:
+/// \code "static const char *boost::detail::ctti<int>::n() [T = int]" \endcode
+/// and \code boost::typeindex::ctti_type_index::type_id<short>().pretty_name() \endcode returns the following:
+/// \code "static const char *boost::detail::ctti<short>::n() [T = short]" \endcode
+///
+/// As we may see first 39 characters are "static const char *boost::detail::ctti<" and they do not depend on
+/// the type T. After first 39 characters we have a human readable type name which is duplicated at the end
+/// of a string. String always ends on ']', which consumes 1 character.
+///
+/// Now if we define `BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING` to
+/// `(39, 1, false, "")` we'll be getting \code "int>::n() [T = int" \endcode
+/// for `boost::typeindex::ctti_type_index::type_id<int>().pretty_name()` and \code "short>::n() [T = short" \endcode
+/// for `boost::typeindex::ctti_type_index::type_id<short>().pretty_name()`.
+///
+/// Now we need to take additional care of the characters that go before the last mention of our type. We'll
+/// do that by telling the macro that we need to cut off everything that goes before the "T = " including the "T = "
+/// itself:
+///
+/// \code (39, 1, true, "T = ") \endcode
+///
+/// In case of GCC or Clang command line we need to add the following line while compiling all the sources:
+///
+/// \code
+/// -DBOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING='(39, 1, true, "T = ")'
+/// \endcode
+/// \param begin_skip How many characters must be skipped at the beginning of the type holding string.
+/// Must be a compile time constant.
+/// \param end_skip How many characters must be skipped at the end of the type holding string.
+/// Must be a compile time constant.
+/// \param runtime_skip Do we need additional checks at runtime to cut off the more characters.
+/// Must be `true` or `false`.
+/// \param runtime_skip_until Skip all the characters before the following string (including the string itself).
+/// Must be a compile time array of characters.
+///
+/// See [RTTI emulation limitations](boost_typeindex/rtti_emulation_limitations.html) for more info.
+#define BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING (0, 0, false, "")
+
+
+    /// Depending on a compiler flags, optimal implementation of type_index will be used 
+    /// as a default boost::typeindex::type_index.
+    ///
+    /// Could be a boost::typeindex::stl_type_index, boost::typeindex::ctti_type_index or 
+    /// user defined type_index class.
+    ///
+    /// \b See boost::typeindex::type_index_facade for a full description of type_index functions.
+    typedef platform_specific type_index;
+#elif defined(BOOST_TYPE_INDEX_USER_TYPEINDEX)
+    // Nothing to do
+#elif (!defined(BOOST_NO_RTTI) && !defined(BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY)) || defined(BOOST_MSVC)
+    typedef boost::typeindex::stl_type_index type_index;
+#else 
+    typedef boost::typeindex::ctti_type_index type_index;
+#endif
+
+/// Depending on a compiler flags, optimal implementation of type_info will be used 
+/// as a default boost::typeindex::type_info.
+///
+/// Could be a std::type_info, boost::typeindex::detail::ctti_data or 
+/// some user defined class.
+///
+/// type_info \b is \b not copyable or default constructible. It is \b not assignable too!
+typedef type_index::type_info_t type_info;
+
+#if defined(BOOST_TYPE_INDEX_DOXYGEN_INVOKED)
+
+/// \def BOOST_TYPE_INDEX_USER_TYPEINDEX
+/// BOOST_TYPE_INDEX_USER_TYPEINDEX can be defined to the path to header file
+/// with user provided implementation of type_index.
+///
+/// See [Making a custom type_index](boost_typeindex/making_a_custom_type_index.html) section
+/// of documentation for usage example.
+#define BOOST_TYPE_INDEX_USER_TYPEINDEX <full/absolute/path/to/header/with/type_index.hpp>
+
+
+/// \def BOOST_TYPE_INDEX_REGISTER_CLASS
+/// BOOST_TYPE_INDEX_REGISTER_CLASS is used to help to emulate RTTI.
+/// Put this macro into the public section of polymorphic class to allow runtime type detection.
+///
+/// Depending on the typeid() availability this macro will expand to nothing or to virtual helper function
+/// `virtual const type_info& boost_type_info_type_id_runtime_() const noexcept`.
+///
+/// \b Example:
+/// \code
+/// class A {
+/// public:
+///     BOOST_TYPE_INDEX_REGISTER_CLASS
+///     virtual ~A(){}
+/// };
+///
+/// struct B: public A {
+///     BOOST_TYPE_INDEX_REGISTER_CLASS
+/// };
+///
+/// struct C: public B {
+///     BOOST_TYPE_INDEX_REGISTER_CLASS
+/// };
+///
+/// ...
+///
+/// C c1;
+/// A* pc1 = &c1;
+/// assert(boost::typeindex::type_id<C>() == boost::typeindex::type_id_runtime(*pc1));
+/// \endcode
+#define BOOST_TYPE_INDEX_REGISTER_CLASS nothing-or-some-virtual-functions
+
+/// \def BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY
+/// BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY is a helper macro that must be defined if mixing
+/// RTTI on/off modules. See
+/// [Mixing sources with RTTI on and RTTI off](boost_typeindex/mixing_sources_with_rtti_on_and_.html)
+/// section of documentation for more info.
+#define BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY
+
+#endif // defined(BOOST_TYPE_INDEX_DOXYGEN_INVOKED)
+
+
+/// Function to get boost::typeindex::type_index for a type T.
+/// Removes const, volatile && and & modifiers from T.
+///
+/// \b Example:
+/// \code
+/// type_index ti = type_id<int&>();
+/// std::cout << ti.pretty_name();  // Outputs 'int'
+/// \endcode
+///
+/// \tparam T Type for which type_index must be created.
+/// \throw Nothing.
+/// \return boost::typeindex::type_index with information about the specified type T.
+template <class T>
+inline type_index type_id() BOOST_NOEXCEPT {
+    return type_index::type_id<T>();
+}
+
+/// Function for constructing boost::typeindex::type_index instance for type T. 
+/// Does not remove const, volatile, & and && modifiers from T.
+///
+/// If T has no const, volatile, & and && modifiers, then returns exactly 
+/// the same result as in case of calling `type_id<T>()`.
+///
+/// \b Example:
+/// \code
+/// type_index ti = type_id_with_cvr<int&>();
+/// std::cout << ti.pretty_name();  // Outputs 'int&'
+/// \endcode
+///
+/// \tparam T Type for which type_index must be created.
+/// \throw Nothing.
+/// \return boost::typeindex::type_index with information about the specified type T.
+template <class T>
+inline type_index type_id_with_cvr() BOOST_NOEXCEPT {
+    return type_index::type_id_with_cvr<T>();
+}
+
+/// Function that works exactly like C++ typeid(rtti_val) call, but returns boost::type_index.
+///
+/// Retunrs runtime information about specified type.
+///
+/// \b Requirements: RTTI available or Base and Derived classes must be marked with BOOST_TYPE_INDEX_REGISTER_CLASS.
+///
+/// \b Example:
+/// \code
+/// struct Base { virtual ~Base(){} };
+/// struct Derived: public Base  {};
+/// ...
+/// Derived d;
+/// Base& b = d;
+/// type_index ti = type_id_runtime(b);
+/// std::cout << ti.pretty_name();  // Outputs 'Derived'
+/// \endcode
+///
+/// \param runtime_val Varaible which runtime type must be returned.
+/// \throw Nothing.
+/// \return boost::typeindex::type_index with information about the specified variable.
+template <class T>
+inline type_index type_id_runtime(const T& runtime_val) BOOST_NOEXCEPT {
+    return type_index::type_id_runtime(runtime_val);
+}
+
+}} // namespace boost::typeindex
+
+
+
+#endif // BOOST_TYPE_INDEX_HPP
+

boost/type_index/stl_type_index.hpp

@@ -0,0 +1,273 @@
+//
+// Copyright (c) Antony Polukhin, 2013-2014.
+//
+//
+// 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)
+//
+
+#ifndef BOOST_TYPE_INDEX_STL_TYPE_INDEX_HPP
+#define BOOST_TYPE_INDEX_STL_TYPE_INDEX_HPP
+
+/// \file stl_type_index.hpp
+/// \brief Contains boost::typeindex::stl_type_index class.
+///
+/// boost::typeindex::stl_type_index class can be used as a drop-in replacement 
+/// for std::type_index.
+///
+/// It is used in situations when RTTI is enabled or typeid() method is available.
+/// When typeid() is disabled or BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY macro
+/// is defined boost::typeindex::ctti is usually used instead of boost::typeindex::stl_type_index.
+
+#include <boost/type_index/type_index_facade.hpp>
+
+// MSVC is capable of calling typeid(T) even when RTTI is off
+#if defined(BOOST_NO_RTTI) && !defined(BOOST_MSVC)
+#error "File boost/type_index/stl_type_index.ipp is not usable when typeid() is not available."
+#endif
+
+#include <typeinfo>
+#include <cstring>                                  // std::strcmp, std::strlen, std::strstr
+#include <stdexcept>
+#include <boost/static_assert.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/core/demangle.hpp>
+#include <boost/type_traits/is_const.hpp>
+#include <boost/type_traits/is_reference.hpp>
+#include <boost/type_traits/is_volatile.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/or.hpp>
+#include <boost/functional/hash_fwd.hpp>
+
+#if (defined(__EDG_VERSION__) && __EDG_VERSION__ < 245) \
+        || (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 744)
+#   include <boost/type_traits/is_signed.hpp>
+#   include <boost/type_traits/make_signed.hpp>
+#   include <boost/mpl/identity.hpp>
+#endif
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
+
+namespace boost { namespace typeindex {
+
+/// \class stl_type_index
+/// This class is a wrapper around std::type_info, that workarounds issues and provides
+/// much more rich interface. \b For \b description \b of \b functions \b see type_index_facade.
+///
+/// This class requires typeid() to work. For cases when RTTI is disabled see ctti_type_index.
+class stl_type_index
+    : public type_index_facade<
+        stl_type_index, 
+        #ifdef BOOST_NO_STD_TYPEINFO
+            type_info
+        #else
+            std::type_info
+        #endif
+    > 
+{
+public:
+#ifdef BOOST_NO_STD_TYPEINFO
+    typedef type_info type_info_t;
+#else
+    typedef std::type_info type_info_t;
+#endif
+
+private:
+    const type_info_t* data_;
+
+public:
+    inline stl_type_index() BOOST_NOEXCEPT
+        : data_(&typeid(void))
+    {}
+
+    inline stl_type_index(const type_info_t& data) BOOST_NOEXCEPT
+        : data_(&data)
+    {}
+
+    inline const type_info_t&  type_info() const BOOST_NOEXCEPT;
+
+    inline const char*  raw_name() const BOOST_NOEXCEPT;
+    inline const char*  name() const BOOST_NOEXCEPT;
+    inline std::string  pretty_name() const;
+
+    inline std::size_t  hash_code() const BOOST_NOEXCEPT;
+    inline bool         equal(const stl_type_index& rhs) const BOOST_NOEXCEPT;
+    inline bool         before(const stl_type_index& rhs) const BOOST_NOEXCEPT;
+
+    template <class T>
+    inline static stl_type_index type_id() BOOST_NOEXCEPT;
+
+    template <class T>
+    inline static stl_type_index type_id_with_cvr() BOOST_NOEXCEPT;
+
+    template <class T>
+    inline static stl_type_index type_id_runtime(const T& value) BOOST_NOEXCEPT;
+};
+
+inline const stl_type_index::type_info_t& stl_type_index::type_info() const BOOST_NOEXCEPT {
+    return *data_;
+}
+
+
+inline const char* stl_type_index::raw_name() const BOOST_NOEXCEPT {
+#ifdef _MSC_VER
+    return data_->raw_name();
+#else
+    return data_->name();
+#endif
+}
+
+inline const char* stl_type_index::name() const BOOST_NOEXCEPT {
+    return data_->name();
+}
+
+inline std::string stl_type_index::pretty_name() const {
+    static const char cvr_saver_name[] = "boost::typeindex::detail::cvr_saver<";
+    static BOOST_CONSTEXPR_OR_CONST std::string::size_type cvr_saver_name_len = sizeof(cvr_saver_name) - 1;
+
+    // In case of MSVC demangle() is a no-op, and name() already returns demangled name.
+    // In case of GCC and Clang (on non-Windows systems) name() returns mangled name and demangle() undecorates it.
+    const boost::core::scoped_demangled_name demangled_name(data_->name());
+
+    const char* begin = demangled_name.get();
+    if (!begin) {
+        boost::throw_exception(std::runtime_error("Type name demangling failed"));
+    }
+
+    const std::string::size_type len = std::strlen(begin);
+    const char* end = begin + len;
+
+    if (len > cvr_saver_name_len) {
+        const char* b = std::strstr(begin, cvr_saver_name);
+        if (b) {
+            b += cvr_saver_name_len;
+
+            // Trim leading spaces
+            while (*b == ' ') {         // the string is zero terminated, we won't exceed the buffer size
+                ++ b;
+            }
+
+            // Skip the closing angle bracket
+            const char* e = end - 1;
+            while (e > b && *e != '>') {
+                -- e;
+            }
+
+            // Trim trailing spaces
+            while (e > b && *(e - 1) == ' ') {
+                -- e;
+            }
+
+            if (b < e) {
+                // Parsing seems to have succeeded, the type name is not empty
+                begin = b;
+                end = e;
+            }
+        }
+    }
+
+    return std::string(begin, end);
+}
+
+
+inline std::size_t stl_type_index::hash_code() const BOOST_NOEXCEPT {
+#if _MSC_VER > 1600 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5 && defined(__GXX_EXPERIMENTAL_CXX0X__))
+    return data_->hash_code();
+#else
+    return boost::hash_range(raw_name(), raw_name() + std::strlen(raw_name()));
+#endif
+}
+
+
+/// @cond
+
+// for this compiler at least, cross-shared-library type_info
+// comparisons don't work, so we are using typeid(x).name() instead.
+# if (defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5))) \
+    || defined(_AIX) \
+    || (defined(__sgi) && defined(__host_mips)) \
+    || (defined(__hpux) && defined(__HP_aCC)) \
+    || (defined(linux) && defined(__INTEL_COMPILER) && defined(__ICC))
+#  define BOOST_CLASSINFO_COMPARE_BY_NAMES
+# endif
+
+/// @endcond
+
+inline bool stl_type_index::equal(const stl_type_index& rhs) const BOOST_NOEXCEPT {
+#ifdef BOOST_CLASSINFO_COMPARE_BY_NAMES
+    return raw_name() == rhs.raw_name() || !std::strcmp(raw_name(), rhs.raw_name());
+#else
+    return *data_ == *rhs.data_;
+#endif
+}
+
+inline bool stl_type_index::before(const stl_type_index& rhs) const BOOST_NOEXCEPT {
+#ifdef BOOST_CLASSINFO_COMPARE_BY_NAMES
+    return raw_name() != rhs.raw_name() && std::strcmp(raw_name(), rhs.raw_name()) < 0;
+#else
+    return !!data_->before(*rhs.data_);
+#endif
+}
+
+#ifdef BOOST_CLASSINFO_COMPARE_BY_NAMES
+#undef BOOST_CLASSINFO_COMPARE_BY_NAMES
+#endif
+
+
+
+template <class T>
+inline stl_type_index stl_type_index::type_id() BOOST_NOEXCEPT {
+    typedef BOOST_DEDUCED_TYPENAME boost::remove_reference<T>::type no_ref_t;
+    typedef BOOST_DEDUCED_TYPENAME boost::remove_cv<no_ref_t>::type no_cvr_prefinal_t;
+
+    #  if (defined(__EDG_VERSION__) && __EDG_VERSION__ < 245) \
+        || (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 744)
+
+        // Old EDG-based compilers seem to mistakenly distinguish 'integral' from 'signed integral'
+        // in typeid() expressions. Full template specialization for 'integral' fixes that issue:
+        typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
+            boost::is_signed<no_cvr_prefinal_t>,
+            boost::make_signed<no_cvr_prefinal_t>,
+            boost::mpl::identity<no_cvr_prefinal_t>
+        >::type no_cvr_prefinal_lazy_t;
+
+        typedef BOOST_DEDUCED_TYPENAME no_cvr_prefinal_t::type no_cvr_t;
+    #else
+        typedef no_cvr_prefinal_t no_cvr_t;
+    #endif
+
+    return typeid(no_cvr_t);
+}
+
+namespace detail {
+    template <class T> class cvr_saver{};
+}
+
+template <class T>
+inline stl_type_index stl_type_index::type_id_with_cvr() BOOST_NOEXCEPT {
+    typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
+        boost::mpl::or_<boost::is_reference<T>, boost::is_const<T>, boost::is_volatile<T> >,
+        detail::cvr_saver<T>,
+        T
+    >::type type;
+
+    return typeid(type);
+}
+
+
+template <class T>
+inline stl_type_index stl_type_index::type_id_runtime(const T& value) BOOST_NOEXCEPT {
+#ifdef BOOST_NO_RTTI
+    return value.boost_type_index_type_id_runtime_();
+#else
+    return typeid(value);
+#endif
+}
+
+}} // namespace boost::typeindex
+
+#endif // BOOST_TYPE_INDEX_STL_TYPE_INDEX_HPP

boost/type_index/type_index_facade.hpp

@@ -0,0 +1,296 @@
+//
+// Copyright (c) Antony Polukhin, 2013-2014.
+//
+//
+// 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)
+//
+
+#ifndef BOOST_TYPE_INDEX_TYPE_INDEX_FACADE_HPP
+#define BOOST_TYPE_INDEX_TYPE_INDEX_FACADE_HPP
+
+#include <boost/config.hpp>
+#include <boost/functional/hash_fwd.hpp>
+#include <string>
+#include <cstring>
+
+#if !defined(BOOST_NO_IOSTREAM)
+#if !defined(BOOST_NO_IOSFWD)
+#include <iosfwd>               // for std::basic_ostream
+#else
+#include <ostream>
+#endif
+#endif
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
+
+namespace boost { namespace typeindex {
+
+/// \class type_index_facade
+///
+/// This class takes care about the comparison operators, hash functions and 
+/// ostream operators. Use this class as a public base class for defining new
+/// type_info-conforming classes.
+///
+/// \b Example:
+/// \code
+/// class stl_type_index: public type_index_facade<stl_type_index, std::type_info> 
+/// {
+/// public:
+///     typedef std::type_info type_info_t;
+/// private:
+///     const type_info_t* data_;
+///
+/// public:
+///     stl_type_index(const type_info_t& data) noexcept
+///         : data_(&data)
+///     {}
+/// // ...
+/// };
+/// \endcode
+///
+/// \tparam Derived Class derived from type_index_facade.
+/// \tparam TypeInfo Class that will be used as a base type_info class.
+/// \note Take a look at the protected methods. They are \b not \b defined in type_index_facade. 
+/// Protected member functions raw_name() \b must be defined in Derived class. All the other 
+/// methods are mandatory.
+/// \see 'Making a custom type_index' section for more information about 
+/// creating your own type_index using type_index_facade.
+template <class Derived, class TypeInfo>
+class type_index_facade {
+private:
+    /// @cond
+    const Derived & derived() const BOOST_NOEXCEPT {
+      return *static_cast<Derived const*>(this);
+    }
+    /// @endcond
+public:
+    typedef TypeInfo                                type_info_t;
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides \b must not throw.
+    /// \return Name of a type. By default returns Derived::raw_name().
+    inline const char* name() const BOOST_NOEXCEPT {
+        return derived().raw_name();
+    }
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides may throw.
+    /// \return Human readable type name. By default returns Derived::name().
+    inline std::string pretty_name() const {
+        return derived().name();
+    }
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides \b must not throw.
+    /// \return True if two types are equal. By default compares types by raw_name().
+    inline bool equal(const Derived& rhs) const BOOST_NOEXCEPT {
+        const char* const left = derived().raw_name();
+        const char* const right = rhs.raw_name();
+        return left == right || !std::strcmp(left, right);
+    }
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides \b must not throw.
+    /// \return True if rhs is greater than this. By default compares types by raw_name().
+    inline bool before(const Derived& rhs) const BOOST_NOEXCEPT {
+        const char* const left = derived().raw_name();
+        const char* const right = rhs.raw_name();
+        return left != right && std::strcmp(left, right) < 0;
+    }
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides \b must not throw.
+    /// \return Hash code of a type. By default hashes types by raw_name().
+    /// \note <boost/functional/hash.hpp> has to be included if this function is used.
+    inline std::size_t hash_code() const BOOST_NOEXCEPT {
+        const char* const name = derived().raw_name();
+        return boost::hash_range(name, name + std::strlen(name));
+    }
+
+#if defined(BOOST_TYPE_INDEX_DOXYGEN_INVOKED)
+protected:
+    /// \b Override: This function \b must be redefined in Derived class. Overrides \b must not throw.
+    /// \return Pointer to unredable/raw type name.
+    inline const char* raw_name() const BOOST_NOEXCEPT;
+
+    /// \b Override: This function \b may be redefined in Derived class. Overrides \b must not throw.
+    /// \return Const reference to underlying low level type_info_t.
+    inline const type_info_t& type_info() const BOOST_NOEXCEPT;
+
+    /// This is a factory method that is used to create instances of Derived classes.
+    /// boost::typeindex::type_id() will call this method, if Derived has same type as boost::typeindex::type_index.
+    ///
+    /// \b Override: This function \b may be redefined and made public in Derived class. Overrides \b must not throw. 
+    /// Overrides \b must remove const, volatile && and & modifiers from T.
+    /// \tparam T Type for which type_index must be created.
+    /// \return type_index for type T.
+    template <class T>
+    static Derived type_id() BOOST_NOEXCEPT;
+
+    /// This is a factory method that is used to create instances of Derived classes.
+    /// boost::typeindex::type_id_with_cvr() will call this method, if Derived has same type as boost::typeindex::type_index.
+    ///
+    /// \b Override: This function \b may be redefined and made public in Derived class. Overrides \b must not throw. 
+    /// Overrides \b must \b not remove const, volatile && and & modifiers from T.
+    /// \tparam T Type for which type_index must be created.
+    /// \return type_index for type T.
+    template <class T>
+    static Derived type_id_with_cvr() BOOST_NOEXCEPT;
+
+    /// This is a factory method that is used to create instances of Derived classes.
+    /// boost::typeindex::type_id_runtime(const T&) will call this method, if Derived has same type as boost::typeindex::type_index.
+    ///
+    /// \b Override: This function \b may be redefined and made public in Derived class.
+    /// \param variable Variable which runtime type will be stored in type_index.
+    /// \return type_index with runtime type of variable.
+    template <class T>
+    static Derived type_id_runtime(const T& variable) BOOST_NOEXCEPT;
+
+#endif
+
+};
+
+/// @cond
+template <class Derived, class TypeInfo>
+inline bool operator == (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return static_cast<Derived const&>(lhs).equal(static_cast<Derived const&>(rhs));
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator < (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return static_cast<Derived const&>(lhs).before(static_cast<Derived const&>(rhs));;
+}
+
+
+
+template <class Derived, class TypeInfo>
+inline bool operator > (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return rhs < lhs;
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator <= (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(lhs > rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator >= (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(lhs < rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator != (const type_index_facade<Derived, TypeInfo>& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(lhs == rhs);
+}
+
+// ######################### COMPARISONS with Derived ############################ //
+template <class Derived, class TypeInfo>
+inline bool operator == (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return Derived(lhs) == rhs;
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator < (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return Derived(lhs) < rhs;
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator > (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return rhs < Derived(lhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator <= (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(Derived(lhs) > rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator >= (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(Derived(lhs) < rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator != (const TypeInfo& lhs, const type_index_facade<Derived, TypeInfo>& rhs) BOOST_NOEXCEPT {
+    return !(Derived(lhs) == rhs);
+}
+
+
+template <class Derived, class TypeInfo>
+inline bool operator == (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return lhs == Derived(rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator < (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return lhs < Derived(rhs);
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator > (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return Derived(rhs) < lhs;
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator <= (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return !(lhs > Derived(rhs));
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator >= (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return !(lhs < Derived(rhs));
+}
+
+template <class Derived, class TypeInfo>
+inline bool operator != (const type_index_facade<Derived, TypeInfo>& lhs, const TypeInfo& rhs) BOOST_NOEXCEPT {
+    return !(lhs == Derived(rhs));
+}
+
+// ######################### COMPARISONS with Derived END ############################ //
+
+/// @endcond
+
+#if defined(BOOST_TYPE_INDEX_DOXYGEN_INVOKED)
+
+/// noexcept comparison operators for type_index_facade classes.
+bool operator ==, !=, <, ... (const type_index_facade& lhs, const type_index_facade& rhs) noexcept;
+
+/// noexcept comparison operators for type_index_facade and it's TypeInfo classes.
+bool operator ==, !=, <, ... (const type_index_facade& lhs, const TypeInfo& rhs) noexcept;
+
+/// noexcept comparison operators for type_index_facade's TypeInfo and type_index_facade classes.
+bool operator ==, !=, <, ... (const TypeInfo& lhs, const type_index_facade& rhs) noexcept;
+
+#endif
+
+#ifndef BOOST_NO_IOSTREAM
+#ifdef BOOST_NO_TEMPLATED_IOSTREAMS
+/// @cond
+/// Ostream operator that will output demangled name
+template <class Derived, class TypeInfo>
+inline std::ostream& operator<<(std::ostream& ostr, const type_index_facade<Derived, TypeInfo>& ind) {
+    ostr << static_cast<Derived const&>(ind).pretty_name();
+    return ostr;
+}
+/// @endcond
+#else
+/// Ostream operator that will output demangled name.
+template <class CharT, class TriatT, class Derived, class TypeInfo>
+inline std::basic_ostream<CharT, TriatT>& operator<<(
+    std::basic_ostream<CharT, TriatT>& ostr, 
+    const type_index_facade<Derived, TypeInfo>& ind) 
+{
+    ostr << static_cast<Derived const&>(ind).pretty_name();
+    return ostr;
+}
+#endif // BOOST_NO_TEMPLATED_IOSTREAMS
+#endif // BOOST_NO_IOSTREAM
+
+/// This free function is used by Boost's unordered containers.
+/// \note <boost/functional/hash.hpp> has to be included if this function is used.
+template <class Derived, class TypeInfo>
+inline std::size_t hash_value(const type_index_facade<Derived, TypeInfo>& lhs) BOOST_NOEXCEPT {
+    return static_cast<Derived const&>(lhs).hash_code();
+}
+
+}} // namespace boost::typeindex
+
+#endif // BOOST_TYPE_INDEX_TYPE_INDEX_FACADE_HPP
+

boost/variant.hpp

@@ -0,0 +1,27 @@
+//-----------------------------------------------------------------------------
+// boost variant.hpp header file
+// See http://www.boost.org/libs/variant for documentation.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman, Itay Maman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_HPP
+#define BOOST_VARIANT_HPP
+
+// variant "main"
+#include "boost/variant/variant.hpp"
+#include "boost/variant/recursive_variant.hpp"
+#include "boost/variant/recursive_wrapper.hpp"
+
+// common applications
+#include "boost/variant/get.hpp"
+#include "boost/variant/apply_visitor.hpp"
+#include "boost/variant/static_visitor.hpp"
+#include "boost/variant/visitor_ptr.hpp"
+
+#endif // BOOST_VARIANT_HPP

boost/variant/apply_visitor.hpp

@@ -0,0 +1,20 @@
+//-----------------------------------------------------------------------------
+// boost variant/apply_visitor.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_APPLY_VISITOR_HPP
+#define BOOST_VARIANT_APPLY_VISITOR_HPP
+
+#include "boost/variant/detail/apply_visitor_unary.hpp"
+#include "boost/variant/detail/apply_visitor_binary.hpp"
+#include "boost/variant/detail/apply_visitor_delayed.hpp"
+
+#endif // BOOST_VARIANT_APPLY_VISITOR_HPP

boost/variant/bad_visit.hpp

@@ -0,0 +1,41 @@
+//-----------------------------------------------------------------------------
+// boost variant/bad_visit.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_BAD_VISIT_HPP
+#define BOOST_VARIANT_BAD_VISIT_HPP
+
+#include <exception>
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class bad_visit
+//
+// Exception thrown when a visitation attempt via apply_visitor fails due
+// to invalid visited subtype or contents.
+//
+struct bad_visit
+    : std::exception
+{
+public: // std::exception interface
+
+    virtual const char * what() const BOOST_NOEXCEPT_OR_NOTHROW
+    {
+        return "boost::bad_visit: "
+               "failed visitation using boost::apply_visitor";
+    }
+
+};
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_BAD_VISIT_HPP

boost/variant/detail/apply_visitor_binary.hpp

@@ -0,0 +1,178 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/apply_visitor_binary.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_APPLY_VISITOR_BINARY_HPP
+#define BOOST_VARIANT_DETAIL_APPLY_VISITOR_BINARY_HPP
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/variant/detail/generic_result_type.hpp"
+
+#include "boost/variant/detail/apply_visitor_unary.hpp"
+
+#if BOOST_WORKAROUND(__EDG__, BOOST_TESTED_AT(302))
+#include "boost/utility/enable_if.hpp"
+#include "boost/mpl/not.hpp"
+#include "boost/type_traits/is_const.hpp"
+#endif
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// function template apply_visitor(visitor, visitable1, visitable2)
+//
+// Visits visitable1 and visitable2 such that their values (which we
+// shall call x and y, respectively) are used as arguments in the
+// expression visitor(x, y).
+//
+
+namespace detail { namespace variant {
+
+template <typename Visitor, typename Value1>
+class apply_visitor_binary_invoke
+{
+public: // visitor typedefs
+
+    typedef typename Visitor::result_type
+        result_type;
+
+private: // representation
+
+    Visitor& visitor_;
+    Value1& value1_;
+
+public: // structors
+
+    apply_visitor_binary_invoke(Visitor& visitor, Value1& value1) BOOST_NOEXCEPT
+        : visitor_(visitor)
+        , value1_(value1)
+    {
+    }
+
+public: // visitor interfaces
+
+    template <typename Value2>
+        BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type)
+    operator()(Value2& value2)
+    {
+        return visitor_(value1_, value2);
+    }
+
+private:
+    apply_visitor_binary_invoke& operator=(const apply_visitor_binary_invoke&);
+
+};
+
+template <typename Visitor, typename Visitable2>
+class apply_visitor_binary_unwrap
+{
+public: // visitor typedefs
+
+    typedef typename Visitor::result_type
+        result_type;
+
+private: // representation
+
+    Visitor& visitor_;
+    Visitable2& visitable2_;
+
+public: // structors
+
+    apply_visitor_binary_unwrap(Visitor& visitor, Visitable2& visitable2) BOOST_NOEXCEPT
+        : visitor_(visitor)
+        , visitable2_(visitable2)
+    {
+    }
+
+public: // visitor interfaces
+
+    template <typename Value1>
+        BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type)
+    operator()(Value1& value1)
+    {
+        apply_visitor_binary_invoke<
+              Visitor
+            , Value1
+            > invoker(visitor_, value1);
+
+        return boost::apply_visitor(invoker, visitable2_);
+    }
+
+private:
+    apply_visitor_binary_unwrap& operator=(const apply_visitor_binary_unwrap&);
+
+};
+
+}} // namespace detail::variant
+
+//
+// nonconst-visitor version:
+//
+
+#if !BOOST_WORKAROUND(__EDG__, BOOST_TESTED_AT(302))
+
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(V) \
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename V::result_type) \
+    /**/
+
+#else // EDG-based compilers
+
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(V) \
+    typename enable_if< \
+          mpl::not_< is_const< V > > \
+        , BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename V::result_type) \
+        >::type \
+    /**/
+
+#endif // EDG-based compilers workaround
+
+template <typename Visitor, typename Visitable1, typename Visitable2>
+inline
+    BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(Visitor)
+apply_visitor(
+      Visitor& visitor
+    , Visitable1& visitable1, Visitable2& visitable2
+    )
+{
+    ::boost::detail::variant::apply_visitor_binary_unwrap<
+          Visitor, Visitable2
+        > unwrapper(visitor, visitable2);
+
+    return boost::apply_visitor(unwrapper, visitable1);
+}
+
+#undef BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE
+
+//
+// const-visitor version:
+//
+
+template <typename Visitor, typename Visitable1, typename Visitable2>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(
+          typename Visitor::result_type
+        )
+apply_visitor(
+      const Visitor& visitor
+    , Visitable1& visitable1, Visitable2& visitable2
+    )
+{
+    ::boost::detail::variant::apply_visitor_binary_unwrap<
+          const Visitor, Visitable2
+        > unwrapper(visitor, visitable2);
+
+    return boost::apply_visitor(unwrapper, visitable1);
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_APPLY_VISITOR_BINARY_HPP

boost/variant/detail/apply_visitor_delayed.hpp

@@ -0,0 +1,88 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/apply_visitor_delayed.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_APPLY_VISITOR_DELAYED_HPP
+#define BOOST_VARIANT_DETAIL_APPLY_VISITOR_DELAYED_HPP
+
+#include "boost/variant/detail/generic_result_type.hpp"
+
+#include "boost/variant/detail/apply_visitor_unary.hpp"
+#include "boost/variant/detail/apply_visitor_binary.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// function template apply_visitor(visitor)
+//
+// Returns a function object, overloaded for unary and binary usage, that
+// visits its arguments using visitor (or a copy of visitor) via
+//  * apply_visitor( visitor, [argument] )
+// under unary invocation, or
+//  * apply_visitor( visitor, [argument1], [argument2] )
+// under binary invocation.
+//
+// NOTE: Unlike other apply_visitor forms, the visitor object must be
+//   non-const; this prevents user from giving temporary, to disastrous
+//   effect (i.e., returned function object would have dead reference).
+//
+
+template <typename Visitor>
+class apply_visitor_delayed_t
+{
+public: // visitor typedefs
+
+    typedef typename Visitor::result_type
+        result_type;
+
+private: // representation
+
+    Visitor& visitor_;
+
+public: // structors
+
+    explicit apply_visitor_delayed_t(Visitor& visitor) BOOST_NOEXCEPT
+      : visitor_(visitor)
+    {
+    }
+
+public: // unary visitor interface
+
+    template <typename Visitable>
+        BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type)
+    operator()(Visitable& visitable) const
+    {
+        return apply_visitor(visitor_, visitable);
+    }
+
+public: // binary visitor interface
+
+    template <typename Visitable1, typename Visitable2>
+        BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type)
+    operator()(Visitable1& visitable1, Visitable2& visitable2) const
+    {
+        return apply_visitor(visitor_, visitable1, visitable2);
+    }
+
+private:
+    apply_visitor_delayed_t& operator=(const apply_visitor_delayed_t&);
+
+};
+
+template <typename Visitor>
+inline apply_visitor_delayed_t<Visitor> apply_visitor(Visitor& visitor)
+{
+    return apply_visitor_delayed_t<Visitor>(visitor);
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_APPLY_VISITOR_DELAYED_HPP

boost/variant/detail/apply_visitor_unary.hpp

@@ -0,0 +1,79 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/apply_visitor_unary.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_APPLY_VISITOR_UNARY_HPP
+#define BOOST_VARIANT_DETAIL_APPLY_VISITOR_UNARY_HPP
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/variant/detail/generic_result_type.hpp"
+
+#if BOOST_WORKAROUND(__EDG__, BOOST_TESTED_AT(302))
+#include "boost/utility/enable_if.hpp"
+#include "boost/mpl/not.hpp"
+#include "boost/type_traits/is_const.hpp"
+#endif
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// function template apply_visitor(visitor, visitable)
+//
+// Visits visitable with visitor.
+//
+
+//
+// nonconst-visitor version:
+//
+
+#if !BOOST_WORKAROUND(__EDG__, BOOST_TESTED_AT(302))
+
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(V) \
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename V::result_type) \
+    /**/
+
+#else // EDG-based compilers
+
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(V) \
+    typename enable_if< \
+          mpl::not_< is_const< V > > \
+        , BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename V::result_type) \
+        >::type \
+    /**/
+
+#endif // EDG-based compilers workaround
+
+template <typename Visitor, typename Visitable>
+inline
+    BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE(Visitor)
+apply_visitor(Visitor& visitor, Visitable& visitable)
+{
+    return visitable.apply_visitor(visitor);
+}
+
+#undef BOOST_VARIANT_AUX_APPLY_VISITOR_NON_CONST_RESULT_TYPE
+
+//
+// const-visitor version:
+//
+
+template <typename Visitor, typename Visitable>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+apply_visitor(const Visitor& visitor, Visitable& visitable)
+{
+    return visitable.apply_visitor(visitor);
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_APPLY_VISITOR_UNARY_HPP

boost/variant/detail/backup_holder.hpp

@@ -0,0 +1,95 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/backup_holder.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_BACKUP_HOLDER_HPP
+#define BOOST_VARIANT_DETAIL_BACKUP_HOLDER_HPP
+
+#include "boost/config.hpp"
+#include "boost/assert.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+template <typename T>
+class backup_holder
+{
+private: // representation
+
+    T* backup_;
+
+public: // structors
+
+    ~backup_holder() BOOST_NOEXCEPT
+    {
+        delete backup_;
+    }
+
+    explicit backup_holder(T* backup) BOOST_NOEXCEPT
+        : backup_(backup)
+    {
+    }
+
+    backup_holder(const backup_holder&);
+
+public: // modifiers
+
+    backup_holder& operator=(const backup_holder& rhs)
+    {
+        *backup_ = rhs.get();
+        return *this;
+    }
+
+    backup_holder& operator=(const T& rhs)
+    {
+        *backup_ = rhs;
+        return *this;
+    }
+
+    void swap(backup_holder& rhs) BOOST_NOEXCEPT
+    {
+        T* tmp = rhs.backup_;
+        rhs.backup_ = this->backup_;
+        this->backup_ = tmp;
+    }
+
+public: // queries
+
+    T& get() BOOST_NOEXCEPT
+    {
+        return *backup_;
+    }
+
+    const T& get() const BOOST_NOEXCEPT
+    {
+        return *backup_;
+    }
+
+};
+
+template <typename T>
+backup_holder<T>::backup_holder(const backup_holder&)
+    : backup_(0)
+{
+    // not intended for copy, but do not want to prohibit syntactically
+    BOOST_ASSERT(false);
+}
+
+template <typename T>
+void swap(backup_holder<T>& lhs, backup_holder<T>& rhs) BOOST_NOEXCEPT
+{
+    lhs.swap(rhs);
+}
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_BACKUP_HOLDER_HPP

boost/variant/detail/bool_trait_def.hpp

@@ -0,0 +1,30 @@
+//-----------------------------------------------------------------------------
+// boost/variant/detail/bool_trait_def.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+// Needed until move-related traits incorporated into type_traits library.
+// no include guards, the header is intended for multiple inclusion!
+
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_def.hpp"
+
+#define BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(trait,T,C) \
+template< typename T > struct trait \
+    BOOST_TT_AUX_BOOL_C_BASE(C) \
+{ \
+    BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(C) \
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,trait,(T)) \
+}; \
+/**/
+
+#define BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(arity, name) \
+BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(arity, name) \
+/**/

boost/variant/detail/bool_trait_undef.hpp

@@ -0,0 +1,21 @@
+//-----------------------------------------------------------------------------
+// boost/variant/detail/bool_trait_undef.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+// Needed until move-related traits incorporated into type_traits library.
+// no include guards, the header is intended for multiple inclusion!
+
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_undef.hpp"
+
+
+#undef BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1
+#undef BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX

boost/variant/detail/cast_storage.hpp

@@ -0,0 +1,42 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/cast_storage.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP
+#define BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP
+
+#include "boost/config.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) function template cast_storage
+//
+// Casts the given storage to the specified type, but with qualification.
+//
+
+template <typename T>
+inline T& cast_storage(void* storage)
+{
+    return *static_cast<T*>(storage);
+}
+
+template <typename T>
+inline const T& cast_storage(const void* storage)
+{
+    return *static_cast<const T*>(storage);
+}
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP

boost/variant/detail/config.hpp

@@ -0,0 +1,37 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/config.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_CONFIG_HPP
+#define BOOST_VARIANT_DETAIL_CONFIG_HPP
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_AUX_BROKEN_CONSTRUCTOR_TEMPLATE_ORDERING
+//
+#if BOOST_WORKAROUND(__MWERKS__, <= 0x3201) \
+ || BOOST_WORKAROUND(BOOST_INTEL, <= 700) \
+ && !defined(BOOST_VARIANT_AUX_BROKEN_CONSTRUCTOR_TEMPLATE_ORDERING)
+#   define BOOST_VARIANT_AUX_BROKEN_CONSTRUCTOR_TEMPLATE_ORDERING
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_AUX_HAS_CONSTRUCTOR_TEMPLATE_ORDERING_SFINAE_WKND
+//
+#if !defined(BOOST_NO_SFINAE) \
+ && !BOOST_WORKAROUND(BOOST_INTEL, <= 700) \
+ && !defined(BOOST_VARIANT_AUX_HAS_CONSTRUCTOR_TEMPLATE_ORDERING_SFINAE_WKND)
+#   define BOOST_VARIANT_AUX_HAS_CONSTRUCTOR_TEMPLATE_ORDERING_SFINAE_WKND
+#endif
+
+#endif // BOOST_VARIANT_DETAIL_CONFIG_HPP

boost/variant/detail/enable_recursive.hpp

@@ -0,0 +1,133 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/enable_recursive.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_HPP
+#define BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_HPP
+
+#include "boost/variant/detail/enable_recursive_fwd.hpp"
+#include "boost/variant/variant_fwd.hpp"
+
+#if !defined(BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT)
+#   include "boost/mpl/apply.hpp"
+#   include "boost/mpl/eval_if.hpp"
+#   include "boost/mpl/lambda.hpp"
+#endif
+
+#include "boost/variant/detail/substitute.hpp"
+#include "boost/mpl/aux_/config/ctps.hpp"
+#include "boost/mpl/bool_fwd.hpp"
+#include "boost/mpl/if.hpp"
+#include "boost/mpl/or.hpp"
+#include "boost/type_traits/is_pointer.hpp"
+#include "boost/type_traits/is_reference.hpp"
+#include "boost/type_traits/is_same.hpp"
+
+#include "boost/variant/recursive_wrapper.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+#if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+#   define BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL(T,Dest,Source) \
+    substitute< T , Dest , Source > \
+    /**/
+
+#else // defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class template rebind1
+//
+// Limited workaround in case 'substitute' metafunction unavailable.
+//
+
+template <typename T, typename U1>
+struct rebind1
+{
+private:
+    typedef typename mpl::lambda<
+          mpl::identity<T>
+        >::type le_;
+
+public:
+    typedef typename mpl::eval_if<
+          is_same< le_, mpl::identity<T> >
+        , le_ // identity<T>
+        , mpl::apply1<le_, U1>
+        >::type type;
+};
+
+#   define BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL(T,Dest,Source) \
+    rebind1< T , Dest > \
+    /**/
+
+#endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction enable_recursive
+//
+// See boost/variant/detail/enable_recursive_fwd.hpp for more information.
+//
+
+
+template <typename T, typename RecursiveVariant, typename NoWrapper>
+struct enable_recursive
+    : BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL(
+          T, RecursiveVariant, ::boost::recursive_variant_
+        )
+{
+};
+
+template <typename T, typename RecursiveVariant>
+struct enable_recursive< T,RecursiveVariant,mpl::false_ >
+{
+private: // helpers, for metafunction result (below)
+
+    typedef typename BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL(
+          T, RecursiveVariant, ::boost::recursive_variant_
+        )::type t_;
+
+public: // metafunction result
+
+    // [Wrap with recursive_wrapper only if rebind really changed something:]
+    typedef typename mpl::if_<
+          mpl::or_<
+              is_same< t_,T >
+            , is_reference<t_>
+            , is_pointer<t_>
+            >
+        , t_
+        , boost::recursive_wrapper<t_>
+        >::type type;
+
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction class quoted_enable_recursive
+//
+// Same behavior as enable_recursive metafunction (see above).
+//
+template <typename RecursiveVariant, typename NoWrapper>
+struct quoted_enable_recursive
+{
+    template <typename T>
+    struct apply
+        : enable_recursive<T, RecursiveVariant, NoWrapper>
+    {
+    };
+};
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_HPP

boost/variant/detail/enable_recursive_fwd.hpp

@@ -0,0 +1,87 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/enable_recursive_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP
+#define BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+
+#include "boost/mpl/bool_fwd.hpp"
+
+#   include "boost/mpl/bool.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) tag recursive_flag
+//
+// Signifies that the variant should perform recursive substituion.
+//
+
+
+template <typename T>
+struct recursive_flag
+{
+    typedef T type;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction is_recursive_flag
+//
+// Signifies that the variant should perform recursive substituion.
+//
+
+
+template <typename T>
+struct is_recursive_flag
+    : mpl::false_
+{
+};
+
+template <typename T>
+struct is_recursive_flag< recursive_flag<T> >
+    : mpl::true_
+{
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction enable_recursive
+//
+// Attempts recursive_variant_ tag substitution, wrapping with
+// boost::recursive_wrapper if substituion occurs w/ non-indirect result
+// (i.e., not a reference or pointer) *and* NoWrapper is false_.
+//
+template <
+      typename T
+    , typename RecursiveVariant
+    , typename NoWrapper = mpl::false_
+    >
+struct enable_recursive;
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction class quoted_enable_recursive
+//
+// Same behavior as enable_recursive metafunction (see above).
+//
+template <
+      typename RecursiveVariant
+    , typename NoWrapper = mpl::false_
+    >
+struct quoted_enable_recursive;
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP

boost/variant/detail/forced_return.hpp

@@ -0,0 +1,102 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/forced_return.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_FORCED_RETURN_HPP
+#define BOOST_VARIANT_DETAIL_FORCED_RETURN_HPP
+
+#include "boost/config.hpp"
+#include "boost/variant/detail/generic_result_type.hpp"
+#include "boost/assert.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) function template forced_return
+//
+// Logical error to permit invocation at runtime, but (artificially) satisfies
+// compile-time requirement of returning a result value.
+//
+
+#if !defined(BOOST_MSVC)                                \
+ && !defined(BOOST_NO_VOID_RETURNS)
+
+// "standard" implementation:
+
+template <typename T>
+inline T forced_return()
+{
+    // logical error: should never be here! (see above)
+    BOOST_ASSERT(false);
+
+    T (*dummy_function_ptr)() = 0;
+    return dummy_function_ptr();
+}
+
+template <>
+inline void forced_return<void>()
+{
+    // logical error: should never be here! (see above)
+    BOOST_ASSERT(false);
+}
+
+#elif !defined(BOOST_MSVC)
+
+// workaround implementation
+//
+// TODO: Determine the most efficient way to handle this -- as below? by
+// throwing? by recursive call to forced_return itself? etc.
+//
+
+template <typename T>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(T)
+forced_return()
+{
+    // logical error: should never be here! (see above)
+    BOOST_ASSERT(false);
+
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(T) (*dummy)() = 0;
+    return dummy();
+}
+
+#else // defined(BOOST_MSVC)
+
+# pragma warning( push )
+# pragma warning( disable : 4702 ) // unreachable code
+// msvc-specific implementation
+//
+// Leverages __declspec(noreturn) for optimized implementation.
+//
+
+__declspec(noreturn)
+inline void forced_return_no_return() {};
+
+template <typename T>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(T)
+forced_return()
+{
+    // logical error: should never be here! (see above)
+    BOOST_ASSERT(false);
+
+    forced_return_no_return();
+}
+
+# pragma warning( pop )
+
+#endif // BOOST_MSVC optimization
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_FORCED_RETURN_HPP

boost/variant/detail/generic_result_type.hpp

@@ -0,0 +1,88 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/generic_result_type.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_GENERIC_RESULT_TYPE_HPP
+#define BOOST_VARIANT_DETAIL_GENERIC_RESULT_TYPE_HPP
+
+#include "boost/config.hpp"
+
+//////////////////////////////////////////////////////////////////////////
+// (workaround) macro BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE
+//
+// On compilers with BOOST_NO_VOID_RETURNS, this macro provides a route
+// to a single syntax for dealing with template functions that may (but
+// not necessarily) return nothing (i.e. void).
+//
+// BOOST_VARIANT_AUX_RETURN_VOID provided for compilers w/ (erroneous?)
+// warnings about non-void functions not returning a value.
+//
+
+#if !defined(BOOST_NO_VOID_RETURNS)
+
+#define BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(T) \
+    T   \
+    /**/
+
+#define BOOST_VARIANT_AUX_RETURN_VOID  \
+    /**/
+
+#define BOOST_VARIANT_AUX_RETURN_VOID_TYPE \
+    void    \
+    /**/
+
+#else // defined(BOOST_NO_VOID_RETURNS)
+
+namespace boost {
+namespace detail { namespace variant {
+
+struct fake_return_void
+{
+    fake_return_void()
+    {
+    }
+
+    template <typename T>
+    fake_return_void(const T&)
+    {
+    }
+};
+
+template <typename T>
+struct no_void_returns_helper
+{
+    typedef T type;
+};
+
+template <>
+struct no_void_returns_helper<void>
+{
+    typedef fake_return_void type;
+};
+
+}} // namespace detail::variant
+} // namespace boost
+
+#define BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(T) \
+    BOOST_DEDUCED_TYPENAME                                           \
+        ::boost::detail::variant::no_void_returns_helper< T >::type  \
+    /**/
+
+#define BOOST_VARIANT_AUX_RETURN_VOID  \
+    return ::boost::detail::variant::fake_return_void()     \
+    /**/
+
+#define BOOST_VARIANT_AUX_RETURN_VOID_TYPE  \
+    ::boost::detail::variant::fake_return_void
+
+#endif // BOOST_NO_VOID_RETURNS workaround
+
+#endif // BOOST_VARIANT_DETAIL_GENERIC_RESULT_TYPE_HPP

boost/variant/detail/hash_variant.hpp

@@ -0,0 +1,47 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/hash_variant.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2011
+// Antony Polukhin
+//
+// 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)
+
+
+#ifndef BOOST_HASH_VARIANT_FUNCTION_HPP
+#define BOOST_HASH_VARIANT_FUNCTION_HPP
+
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+#include <boost/variant/variant_fwd.hpp>
+#include <boost/variant/static_visitor.hpp>
+#include <boost/variant/apply_visitor.hpp>
+#include <boost/functional/hash_fwd.hpp>
+
+namespace boost {
+
+    namespace detail { namespace variant {
+        struct variant_hasher: public boost::static_visitor<std::size_t> {
+            template <class T>
+            std::size_t operator()(T const& val) const {
+                boost::hash<T> hasher;
+                return hasher(val);
+            }
+        };
+    }}
+
+    template < BOOST_VARIANT_ENUM_PARAMS(typename T) >
+    std::size_t hash_value(variant< BOOST_VARIANT_ENUM_PARAMS(T) > const& val) {
+        std::size_t seed = boost::apply_visitor(detail::variant::variant_hasher(), val);
+        hash_combine(seed, val.which());
+        return seed;
+    }
+}
+
+#endif
+

boost/variant/detail/initializer.hpp

@@ -0,0 +1,249 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/initializer.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman, Itay Maman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_INITIALIZER_HPP
+#define BOOST_VARIANT_DETAIL_INITIALIZER_HPP
+
+#include <new> // for placement new
+
+#include "boost/config.hpp"
+
+#include "boost/call_traits.hpp"
+#include "boost/detail/reference_content.hpp"
+#include "boost/variant/recursive_wrapper_fwd.hpp"
+#include "boost/variant/detail/move.hpp"
+
+#if !defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+#   include "boost/mpl/aux_/value_wknd.hpp"
+#   include "boost/mpl/int.hpp"
+#   include "boost/mpl/iter_fold.hpp"
+#   include "boost/mpl/next.hpp"
+#   include "boost/mpl/deref.hpp"
+#   include "boost/mpl/pair.hpp"
+#   include "boost/mpl/protect.hpp"
+#else
+#   include "boost/variant/variant_fwd.hpp"
+#   include "boost/preprocessor/cat.hpp"
+#   include "boost/preprocessor/enum.hpp"
+#   include "boost/preprocessor/repeat.hpp"
+#endif
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) support to simulate standard overload resolution rules
+//
+// The below initializers allows variant to follow standard overload
+// resolution rules over the specified set of bounded types.
+//
+// On compilers where using declarations in class templates can correctly
+// avoid name hiding, use an optimal solution based on the variant's typelist.
+//
+// Otherwise, use a preprocessor workaround based on knowledge of the fixed
+// size of the variant's psuedo-variadic template parameter list.
+//
+
+#if !defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+// (detail) quoted metafunction make_initializer_node
+//
+// Exposes a pair whose first type is a node in the initializer hierarchy.
+//
+struct make_initializer_node
+{
+    template <typename BaseIndexPair, typename Iterator>
+    struct apply
+    {
+    private: // helpers, for metafunction result (below)
+
+        typedef typename BaseIndexPair::first
+            base;
+        typedef typename BaseIndexPair::second
+            index;
+
+        class initializer_node
+            : public base
+        {
+        private: // helpers, for static functions (below)
+
+            typedef typename mpl::deref<Iterator>::type
+                recursive_enabled_T;
+            typedef typename unwrap_recursive<recursive_enabled_T>::type
+                public_T;
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+            typedef boost::is_reference<public_T> 
+                is_reference_content_t;
+
+            typedef typename boost::mpl::if_<is_reference_content_t, public_T, const public_T& >::type 
+                param_T;
+
+            template <class T> struct disable_overload{};
+
+            typedef typename boost::mpl::if_<is_reference_content_t, disable_overload<public_T>, public_T&& >::type 
+                param2_T;
+#else
+            typedef typename call_traits<public_T>::param_type
+                param_T;
+#endif
+
+        public: // static functions
+
+            using base::initialize;
+
+            static int initialize(void* dest, param_T operand)
+            {
+                typedef typename boost::detail::make_reference_content<
+                      recursive_enabled_T
+                    >::type internal_T;
+
+                new(dest) internal_T(operand);
+                return BOOST_MPL_AUX_VALUE_WKND(index)::value; // which
+            }
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES            
+            static int initialize(void* dest, param2_T operand)
+            {
+                // This assert must newer trigger, because all the reference contents are
+                // handled by the initilize(void* dest, param_T operand) function above
+                BOOST_ASSERT(!is_reference_content_t::value);
+
+                typedef typename boost::mpl::if_<is_reference_content_t, param2_T, recursive_enabled_T>::type value_T;
+                new(dest) value_T( boost::detail::variant::move(operand) );
+                return BOOST_MPL_AUX_VALUE_WKND(index)::value; // which
+            }
+#endif
+        };
+
+        friend class initializer_node;
+
+    public: // metafunction result
+
+        typedef mpl::pair<
+              initializer_node
+            , typename mpl::next< index >::type
+            > type;
+
+    };
+};
+
+// (detail) class initializer_root
+//
+// Every level of the initializer hierarchy must expose the name
+// "initialize," so initializer_root provides a dummy function:
+//
+class initializer_root
+{
+public: // static functions
+
+    static void initialize();
+
+};
+
+#else // defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+    // Obsolete. Remove.
+    #define BOOST_VARIANT_AUX_PP_INITIALIZER_TEMPLATE_PARAMS \
+          BOOST_VARIANT_ENUM_PARAMS(typename recursive_enabled_T) \
+    /**/
+
+    // Obsolete. Remove.
+    #define BOOST_VARIANT_AUX_PP_INITIALIZER_DEFINE_PARAM_T(N) \
+        typedef typename unwrap_recursive< \
+              BOOST_PP_CAT(recursive_enabled_T,N) \
+            >::type BOOST_PP_CAT(public_T,N); \
+        typedef typename call_traits< \
+              BOOST_PP_CAT(public_T,N) \
+            >::param_type BOOST_PP_CAT(param_T,N); \
+    /**/
+
+template < BOOST_VARIANT_ENUM_PARAMS(typename recursive_enabled_T) >
+struct preprocessor_list_initializer
+{
+public: // static functions
+
+    #define BOOST_VARIANT_AUX_PP_INITIALIZE_FUNCTION(z,N,_) \
+        typedef typename unwrap_recursive< \
+              BOOST_PP_CAT(recursive_enabled_T,N) \
+            >::type BOOST_PP_CAT(public_T,N); \
+        typedef typename call_traits< \
+              BOOST_PP_CAT(public_T,N) \
+            >::param_type BOOST_PP_CAT(param_T,N); \
+        static int initialize( \
+              void* dest \
+            , BOOST_PP_CAT(param_T,N) operand \
+            ) \
+        { \
+            typedef typename boost::detail::make_reference_content< \
+                  BOOST_PP_CAT(recursive_enabled_T,N) \
+                >::type internal_T; \
+            \
+            new(dest) internal_T(operand); \
+            return (N); /*which*/ \
+        } \
+        /**/
+
+    BOOST_PP_REPEAT(
+          BOOST_VARIANT_LIMIT_TYPES
+        , BOOST_VARIANT_AUX_PP_INITIALIZE_FUNCTION
+        , _
+        )
+
+    #undef BOOST_VARIANT_AUX_PP_INITIALIZE_FUNCTION
+
+};
+
+#endif // BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE workaround
+
+}} // namespace detail::variant
+} // namespace boost
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_AUX_INITIALIZER_T
+//
+// Given both the variant's typelist and a basename for forming the list of
+// bounded types (i.e., T becomes T1, T2, etc.), exposes the initializer
+// most appropriate to the current compiler.
+//
+
+#if !defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+#define BOOST_VARIANT_AUX_INITIALIZER_T( mpl_seq, typename_base ) \
+    ::boost::mpl::iter_fold< \
+          mpl_seq \
+        , ::boost::mpl::pair< \
+              ::boost::detail::variant::initializer_root \
+            , ::boost::mpl::int_<0> \
+            > \
+        , ::boost::mpl::protect< \
+              ::boost::detail::variant::make_initializer_node \
+            > \
+        >::type::first \
+    /**/
+
+#else // defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+    // Obsolete. Remove.
+    #define BOOST_VARIANT_AUX_PP_INITIALIZER_TEMPLATE_ARGS(typename_base) \
+          BOOST_VARIANT_ENUM_PARAMS(typename_base) \
+        /**/
+
+#define BOOST_VARIANT_AUX_INITIALIZER_T( mpl_seq, typename_base ) \
+    ::boost::detail::variant::preprocessor_list_initializer< \
+          BOOST_VARIANT_ENUM_PARAMS(typename_base) \
+        > \
+    /**/
+
+#endif // BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE workaround
+
+#endif // BOOST_VARIANT_DETAIL_INITIALIZER_HPP

boost/variant/detail/make_variant_list.hpp

@@ -0,0 +1,73 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/make_variant_list.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003 Eric Friedman, Itay Maman
+// Copyright (c) 2013 Antony Polukhin
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_MAKE_VARIANT_LIST_HPP
+#define BOOST_VARIANT_DETAIL_MAKE_VARIANT_LIST_HPP
+
+#include "boost/variant/variant_fwd.hpp"
+
+#include "boost/mpl/list.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/enum.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction make_variant_list
+//
+// Provides a MPL-compatible sequence with the specified non-void types
+// as arguments.
+//
+// Rationale: see class template convert_void (variant_fwd.hpp) and using-
+// declaration workaround (below).
+//
+
+#if !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+template < typename... T >
+struct make_variant_list
+{
+    typedef typename mpl::list< T... >::type type;
+};
+
+#else // defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+template < BOOST_VARIANT_ENUM_PARAMS(typename T) >
+struct make_variant_list
+{
+public: // metafunction result
+
+    // [Define a macro to convert any void(NN) tags to mpl::void...]
+#   define BOOST_VARIANT_AUX_CONVERT_VOID(z, N,_)  \
+        typename convert_void< BOOST_PP_CAT(T,N) >::type
+
+    // [...so that the specified types can be passed to mpl::list...]
+    typedef typename mpl::list< 
+          BOOST_PP_ENUM(
+              BOOST_VARIANT_LIMIT_TYPES
+            , BOOST_VARIANT_AUX_CONVERT_VOID
+            , _
+            )
+        >::type type;
+
+    // [...and, finally, the conversion macro can be undefined:]
+#   undef BOOST_VARIANT_AUX_CONVERT_VOID
+
+};
+
+#endif // BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES workaround
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_MAKE_VARIANT_LIST_HPP

boost/variant/detail/move.hpp

@@ -0,0 +1,69 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/move.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+//  Copyright (c) 2002-2003 Eric Friedman
+//  Copyright (c) 2002 by Andrei Alexandrescu
+//  Copyright (c) 2013 Antony Polukhin
+//
+//  Use, modification and distribution are subject to 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)
+//
+//  This file derivative of MoJO. Much thanks to Andrei for his initial work.
+//  See <http://www.cuj.com/experts/2102/alexandr.htm> for information on MOJO.
+//  Re-issued here under the Boost Software License, with permission of the original
+//  author (Andrei Alexandrescu).
+
+
+#ifndef BOOST_VARIANT_DETAIL_MOVE_HPP
+#define BOOST_VARIANT_DETAIL_MOVE_HPP
+
+#include <iterator> // for iterator_traits
+#include <new> // for placement new
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/move/move.hpp"
+
+namespace boost { namespace detail { namespace variant {
+
+using boost::move;
+
+//////////////////////////////////////////////////////////////////////////
+// function template move_swap
+//
+// Swaps using Koenig lookup but falls back to move-swap for primitive
+// types and on non-conforming compilers.
+//
+
+namespace move_swap_fallback {
+
+template <typename T1, typename T2>
+inline void swap(T1& lhs, T2& rhs)
+{
+    T1 tmp( boost::detail::variant::move(lhs) );
+    lhs = boost::detail::variant::move(rhs);
+    rhs = boost::detail::variant::move(tmp);
+}
+
+} // namespace move_swap_fallback
+
+template <typename T>
+inline void move_swap(T& lhs, T& rhs)
+{
+#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
+    move_swap_fallback::swap(lhs, rhs);
+#else
+    using move_swap_fallback::swap;
+    swap(lhs, rhs);
+#endif
+}
+
+}}} // namespace boost::detail::variant
+
+#endif // BOOST_VARIANT_DETAIL_MOVE_HPP
+
+
+

boost/variant/detail/over_sequence.hpp

@@ -0,0 +1,58 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/over_sequence.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// Portions Copyright (C) 2002 David Abrahams
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP
+#define BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class over_sequence
+//
+// Wrapper used to indicate bounded types for variant are from type sequence.
+//
+template <typename Types>
+struct over_sequence
+{
+    typedef Types type;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction is_over_sequence (modeled on code by David Abrahams)
+//
+// Indicates whether the specified type is of form over_sequence<...> or not.
+//
+
+
+template <typename T>
+struct is_over_sequence
+    : mpl::false_
+{
+};
+
+template <typename Types>
+struct is_over_sequence< over_sequence<Types> >
+    : mpl::true_
+{
+};
+
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP

boost/variant/detail/substitute.hpp

@@ -0,0 +1,252 @@
+
+#if !defined(BOOST_PP_IS_ITERATING)
+
+///// header body
+
+//-----------------------------------------------------------------------------
+// boost variant/detail/substitute.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_SUBSTITUTE_HPP
+#define BOOST_VARIANT_DETAIL_SUBSTITUTE_HPP
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+
+#include "boost/variant/detail/substitute_fwd.hpp"
+#include "boost/mpl/aux_/lambda_arity_param.hpp"
+#include "boost/mpl/aux_/preprocessor/params.hpp"
+#include "boost/mpl/aux_/preprocessor/repeat.hpp"
+#include "boost/mpl/int_fwd.hpp"
+#include "boost/mpl/limits/arity.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/empty.hpp"
+#include "boost/preprocessor/arithmetic/inc.hpp"
+#include "boost/preprocessor/iterate.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+#if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction substitute
+//
+// Substitutes one type for another in the given type expression.
+//
+
+//
+// primary template
+//
+template <
+      typename T, typename Dest, typename Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
+          typename Arity /* = ... (see substitute_fwd.hpp) */
+        )
+    >
+struct substitute
+{
+    typedef T type;
+};
+
+//
+// tag substitution specializations
+//
+
+#define BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG(CV_) \
+    template <typename Dest, typename Source> \
+    struct substitute< \
+          CV_ Source \
+        , Dest \
+        , Source \
+          BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<-1>) \
+        > \
+    { \
+        typedef CV_ Dest type; \
+    }; \
+    /**/
+
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG( BOOST_PP_EMPTY() )
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG(const)
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG(volatile)
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG(const volatile)
+
+#undef BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_SUBSTITUTE_TAG
+
+//
+// pointer specializations
+//
+#define BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER(CV_) \
+    template <typename T, typename Dest, typename Source> \
+    struct substitute< \
+          T * CV_ \
+        , Dest \
+        , Source \
+          BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<-1>) \
+        > \
+    { \
+        typedef typename substitute< \
+              T, Dest, Source \
+            >::type * CV_ type; \
+    }; \
+    /**/
+
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER( BOOST_PP_EMPTY() )
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER(const)
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER(volatile)
+BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER(const volatile)
+
+#undef BOOST_VARIANT_AUX_ENABLE_RECURSIVE_IMPL_HANDLE_POINTER
+
+//
+// reference specializations
+//
+template <typename T, typename Dest, typename Source>
+struct substitute<
+      T&
+    , Dest
+    , Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<-1>)
+    >
+{
+    typedef typename substitute<
+          T, Dest, Source
+        >::type & type;
+};
+
+//
+// template expression (i.e., F<...>) specializations
+//
+
+#if !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+template <
+      template <typename...> class F
+    , typename... Ts
+    , typename Dest
+    , typename Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(typename Arity)
+    >
+struct substitute<
+      F<Ts...>
+    , Dest
+    , Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(Arity)
+    >
+{
+    typedef F<typename substitute<
+          Ts, Dest, Source
+        >::type...> type;
+};
+#endif // !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+#define BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF_IMPL(N) \
+    typedef typename substitute< \
+          BOOST_PP_CAT(U,N), Dest, Source \
+        >::type BOOST_PP_CAT(u,N); \
+    /**/
+
+#define BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF(z, N, _) \
+    BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF_IMPL( BOOST_PP_INC(N) ) \
+    /**/
+
+#define BOOST_PP_ITERATION_LIMITS (0,BOOST_MPL_LIMIT_METAFUNCTION_ARITY)
+#define BOOST_PP_FILENAME_1 "boost/variant/detail/substitute.hpp"
+#include BOOST_PP_ITERATE()
+
+#undef BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF_IMPL
+#undef BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF
+
+#endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_SUBSTITUTE_HPP
+
+///// iteration, depth == 1
+
+#elif BOOST_PP_ITERATION_DEPTH() == 1
+#define i BOOST_PP_FRAME_ITERATION(1)
+
+#if i > 0
+
+//
+// template specializations
+//
+template <
+      template < BOOST_MPL_PP_PARAMS(i,typename P) > class T
+    , BOOST_MPL_PP_PARAMS(i,typename U)
+    , typename Dest
+    , typename Source
+    >
+struct substitute<
+      T< BOOST_MPL_PP_PARAMS(i,U) >
+    , Dest
+    , Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<( i )>)
+    >
+{
+private:
+    BOOST_MPL_PP_REPEAT(i, BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF, _)
+
+public:
+    typedef T< BOOST_MPL_PP_PARAMS(i,u) > type;
+};
+
+//
+// function specializations
+//
+template <
+      typename R
+    , BOOST_MPL_PP_PARAMS(i,typename U)
+    , typename Dest
+    , typename Source
+    >
+struct substitute<
+      R (*)( BOOST_MPL_PP_PARAMS(i,U) )
+    , Dest
+    , Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<-1>)
+    >
+{
+private:
+    typedef typename substitute< R, Dest, Source >::type r;
+    BOOST_MPL_PP_REPEAT(i, BOOST_VARIANT_AUX_SUBSTITUTE_TYPEDEF, _)
+
+public:
+    typedef r (*type)( BOOST_MPL_PP_PARAMS(i,u) );
+};
+
+#elif i == 0
+
+//
+// zero-arg function specialization
+//
+template <
+      typename R, typename Dest, typename Source
+    >
+struct substitute<
+      R (*)( void )
+    , Dest
+    , Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(mpl::int_<-1>)
+    >
+{
+private:
+    typedef typename substitute< R, Dest, Source >::type r;
+
+public:
+    typedef r (*type)( void );
+};
+
+#endif // i
+
+#undef i
+#endif // BOOST_PP_IS_ITERATING

boost/variant/detail/substitute_fwd.hpp

@@ -0,0 +1,58 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/substitute_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
+#define BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
+
+#include "boost/mpl/aux_/lambda_arity_param.hpp"
+#include "boost/mpl/aux_/template_arity.hpp"
+#include "boost/mpl/int_fwd.hpp"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
+//
+// Defined if 'substitute' is not implementable on the current compiler.
+//
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+#include "boost/mpl/aux_/config/ttp.hpp"
+
+#if defined(BOOST_NO_TEMPLATE_TEMPLATE_PARAMETERS) \
+ && !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+#   define BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
+#endif
+
+namespace boost {
+namespace detail { namespace variant {
+
+#if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction substitute
+//
+// Substitutes one type for another in the given type expression.
+//
+template <
+      typename T, typename Dest, typename Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
+          typename Arity = mpl::int_< mpl::aux::template_arity<T>::value >
+        )
+    >
+struct substitute;
+
+#endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP

boost/variant/detail/variant_io.hpp

@@ -0,0 +1,95 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/variant_io.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman, Itay Maman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_VARIANT_IO_HPP
+#define BOOST_VARIANT_DETAIL_VARIANT_IO_HPP
+
+#include <iosfwd> // for std::basic_ostream forward declare
+
+#include "boost/variant/variant_fwd.hpp"
+
+#include "boost/detail/templated_streams.hpp"
+#include "boost/variant/static_visitor.hpp"
+
+namespace boost {
+
+///////////////////////////////////////////////////////////////////////////////
+// function template operator<<
+//
+// Outputs the content of the given variant to the given ostream.
+//
+
+// forward declare (allows output of embedded variant< variant< ... >, ... >)
+template <
+      BOOST_TEMPLATED_STREAM_ARGS(E,T)
+    BOOST_TEMPLATED_STREAM_COMMA
+      BOOST_VARIANT_ENUM_PARAMS(typename U)
+    >
+inline BOOST_TEMPLATED_STREAM(ostream, E,T)& operator<<(
+      BOOST_TEMPLATED_STREAM(ostream, E,T)& out
+    , const variant< BOOST_VARIANT_ENUM_PARAMS(U) >& rhs
+    );
+
+namespace detail { namespace variant {
+
+template <typename OStream>
+class printer
+    : public boost::static_visitor<>
+{
+private: // representation
+
+    OStream& out_;
+
+public: // structors
+
+    explicit printer(OStream& out)
+        : out_( out )
+    {
+    }
+
+public: // visitor interface
+
+    template <typename T>
+    void operator()(const T& operand) const
+    {
+        out_ << operand;
+    }
+
+private:
+    printer& operator=(const printer&);
+
+};
+
+}} // namespace detail::variant
+
+template <
+      BOOST_TEMPLATED_STREAM_ARGS(E,T)
+    BOOST_TEMPLATED_STREAM_COMMA
+      BOOST_VARIANT_ENUM_PARAMS(typename U)
+    >
+inline BOOST_TEMPLATED_STREAM(ostream, E,T)& operator<<(
+      BOOST_TEMPLATED_STREAM(ostream, E,T)& out
+    , const variant< BOOST_VARIANT_ENUM_PARAMS(U) >& rhs
+    )
+{
+    detail::variant::printer<
+          BOOST_TEMPLATED_STREAM(ostream, E,T)
+        > visitor(out);
+
+    rhs.apply_visitor(visitor);
+
+    return out;
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_VARIANT_IO_HPP

boost/variant/detail/visitation_impl.hpp

@@ -0,0 +1,276 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/visitation_impl.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_VISITATION_IMPL_HPP
+#define BOOST_VARIANT_DETAIL_VISITATION_IMPL_HPP
+
+#include "boost/config.hpp"
+
+#include "boost/variant/detail/backup_holder.hpp"
+#include "boost/variant/detail/cast_storage.hpp"
+#include "boost/variant/detail/forced_return.hpp"
+#include "boost/variant/detail/generic_result_type.hpp"
+
+#include "boost/mpl/eval_if.hpp"
+#include "boost/mpl/bool.hpp"
+#include "boost/mpl/identity.hpp"
+#include "boost/mpl/int.hpp"
+#include "boost/mpl/next.hpp"
+#include "boost/mpl/deref.hpp"
+#include "boost/mpl/or.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/inc.hpp"
+#include "boost/preprocessor/repeat.hpp"
+#include "boost/type_traits/is_same.hpp"
+#include "boost/type_traits/has_nothrow_copy.hpp"
+#include "boost/type_traits/is_nothrow_move_constructible.hpp"
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) 
+# pragma warning (push) 
+# pragma warning (disable : 4702) //unreachable code 
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// BOOST_VARIANT_VISITATION_UNROLLING_LIMIT
+//
+// Unrolls variant's visitation mechanism to reduce template instantiation
+// and potentially increase runtime performance. (TODO: Investigate further.)
+//
+#if !defined(BOOST_VARIANT_VISITATION_UNROLLING_LIMIT)
+
+#ifndef BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES
+#   include "boost/mpl/limits/list.hpp"
+#   define BOOST_VARIANT_VISITATION_UNROLLING_LIMIT   \
+        BOOST_MPL_LIMIT_LIST_SIZE
+#else
+#   define BOOST_VARIANT_VISITATION_UNROLLING_LIMIT   \
+        BOOST_VARIANT_LIMIT_TYPES
+#endif
+
+#endif
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class apply_visitor_unrolled
+//
+// Tag type indicates when visitation_impl is unrolled.
+//
+struct apply_visitor_unrolled {};
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class template visitation_impl_step
+//
+// "Never ending" iterator range facilitates visitation_impl unrolling.
+//
+
+
+template <typename Iter, typename LastIter>
+struct visitation_impl_step
+{
+    typedef typename mpl::deref<Iter>::type type;
+
+    typedef typename mpl::next<Iter>::type next_iter;
+    typedef visitation_impl_step<
+          next_iter, LastIter
+        > next;
+};
+
+template <typename LastIter>
+struct visitation_impl_step< LastIter,LastIter >
+{
+    typedef apply_visitor_unrolled type;
+    typedef visitation_impl_step next;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) function template visitation_impl_invoke
+//
+// Invokes the given visitor on the specified type in the given storage.
+//
+
+template <typename Visitor, typename VoidPtrCV, typename T>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl_invoke_impl(
+      int, Visitor& visitor, VoidPtrCV storage, T*
+    , mpl::true_// never_uses_backup
+    )
+{
+    return visitor.internal_visit(
+          cast_storage<T>(storage), 1L
+        );
+}
+
+template <typename Visitor, typename VoidPtrCV, typename T>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl_invoke_impl(
+      int internal_which, Visitor& visitor, VoidPtrCV storage, T*
+    , mpl::false_// never_uses_backup
+    )
+{
+    if (internal_which >= 0)
+    {
+        return visitor.internal_visit(
+              cast_storage<T>(storage), 1L
+            );
+    }
+    else
+    {
+        return visitor.internal_visit(
+              cast_storage< backup_holder<T> >(storage), 1L
+            );
+    }
+}
+
+template <typename Visitor, typename VoidPtrCV, typename T, typename NoBackupFlag>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl_invoke(
+      int internal_which, Visitor& visitor, VoidPtrCV storage, T* t
+    , NoBackupFlag
+    , int
+    )
+{
+    typedef typename mpl::or_<
+          NoBackupFlag
+        , is_nothrow_move_constructible<T>
+        , has_nothrow_copy<T>
+        >::type never_uses_backup;
+
+    return (visitation_impl_invoke_impl)(
+          internal_which, visitor, storage, t
+        , never_uses_backup()
+        );
+}
+
+template <typename Visitor, typename VoidPtrCV, typename NBF>
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl_invoke(int, Visitor&, VoidPtrCV, apply_visitor_unrolled*, NBF, long)
+{
+    // should never be here at runtime!
+    typedef typename Visitor::result_type result_type;
+    return ::boost::detail::variant::forced_return< result_type >();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) function template visitation_impl
+//
+// Invokes the given visitor on the type in the given variant storage.
+//
+
+template <
+      typename W, typename S
+    , typename Visitor, typename VPCV
+    , typename NBF
+    >
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl(
+      int, int, Visitor&, VPCV
+    , mpl::true_ // is_apply_visitor_unrolled
+    , NBF, W* = 0, S* = 0
+    )
+{
+    // should never be here at runtime!
+    typedef typename Visitor::result_type result_type;
+    return ::boost::detail::variant::forced_return< result_type >();
+}
+
+template <
+      typename Which, typename step0
+    , typename Visitor, typename VoidPtrCV
+    , typename NoBackupFlag
+    >
+inline
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(typename Visitor::result_type)
+visitation_impl(
+      const int internal_which, const int logical_which
+    , Visitor& visitor, VoidPtrCV storage
+    , mpl::false_ // is_apply_visitor_unrolled
+    , NoBackupFlag no_backup_flag
+    , Which* = 0, step0* = 0
+    )
+{
+    // Typedef apply_visitor_unrolled steps and associated types...
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_TYPEDEF(z, N, _) \
+    typedef typename BOOST_PP_CAT(step,N)::type BOOST_PP_CAT(T,N); \
+    typedef typename BOOST_PP_CAT(step,N)::next \
+        BOOST_PP_CAT(step, BOOST_PP_INC(N)); \
+    /**/
+
+    BOOST_PP_REPEAT(
+          BOOST_VARIANT_VISITATION_UNROLLING_LIMIT
+        , BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_TYPEDEF
+        , _
+        )
+
+#   undef BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_TYPEDEF
+
+    // ...switch on the target which-index value...
+    switch (logical_which)
+    {
+
+    // ...applying the appropriate case:
+#   define BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_CASE(z, N, _) \
+    case (Which::value + (N)): \
+        return (visitation_impl_invoke)( \
+              internal_which, visitor, storage \
+            , static_cast<BOOST_PP_CAT(T,N)*>(0) \
+            , no_backup_flag, 1L \
+            ); \
+    /**/
+
+    BOOST_PP_REPEAT(
+          BOOST_VARIANT_VISITATION_UNROLLING_LIMIT
+        , BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_CASE
+        , _
+        )
+
+#   undef BOOST_VARIANT_AUX_APPLY_VISITOR_STEP_CASE
+
+    default: break;
+    }
+
+    // If not handled in this iteration, continue unrolling:
+    typedef mpl::int_<
+          Which::value + (BOOST_VARIANT_VISITATION_UNROLLING_LIMIT)
+        > next_which;
+
+    typedef BOOST_PP_CAT(step, BOOST_VARIANT_VISITATION_UNROLLING_LIMIT)
+        next_step;
+
+    typedef typename next_step::type next_type;
+    typedef typename is_same< next_type,apply_visitor_unrolled >::type
+        is_apply_visitor_unrolled;
+
+    return visitation_impl(
+          internal_which, logical_which
+        , visitor, storage
+        , is_apply_visitor_unrolled()
+        , no_backup_flag
+        , static_cast<next_which*>(0), static_cast<next_step*>(0)
+        );
+}
+
+}} // namespace detail::variant
+} // namespace boost
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)  
+# pragma warning(pop)  
+#endif 
+
+#endif // BOOST_VARIANT_DETAIL_VISITATION_IMPL_HPP

boost/variant/get.hpp

@@ -0,0 +1,162 @@
+//-----------------------------------------------------------------------------
+// boost variant/get.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman, Itay Maman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_GET_HPP
+#define BOOST_VARIANT_GET_HPP
+
+#include <exception>
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/throw_exception.hpp"
+#include "boost/utility/addressof.hpp"
+#include "boost/variant/variant_fwd.hpp"
+
+#include "boost/type_traits/add_reference.hpp"
+#include "boost/type_traits/add_pointer.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class bad_get
+//
+// The exception thrown in the event of a failed get of a value.
+//
+class BOOST_SYMBOL_VISIBLE bad_get
+    : public std::exception
+{
+public: // std::exception implementation
+
+    virtual const char * what() const BOOST_NOEXCEPT_OR_NOTHROW
+    {
+        return "boost::bad_get: "
+               "failed value get using boost::get";
+    }
+
+};
+
+//////////////////////////////////////////////////////////////////////////
+// function template get<T>
+//
+// Retrieves content of given variant object if content is of type T.
+// Otherwise: pointer ver. returns 0; reference ver. throws bad_get.
+//
+
+namespace detail { namespace variant {
+
+// (detail) class template get_visitor
+//
+// Generic static visitor that: if the value is of the specified type,
+// returns a pointer to the value it visits; else a null pointer.
+//
+template <typename T>
+struct get_visitor
+{
+private: // private typedefs
+
+    typedef typename add_pointer<T>::type pointer;
+    typedef typename add_reference<T>::type reference;
+
+public: // visitor typedefs
+
+    typedef pointer result_type;
+
+public: // visitor interfaces
+
+    pointer operator()(reference operand) const BOOST_NOEXCEPT
+    {
+        return boost::addressof(operand);
+    }
+
+    template <typename U>
+    pointer operator()(const U&) const BOOST_NOEXCEPT
+    {
+        return static_cast<pointer>(0);
+    }
+};
+
+}} // namespace detail::variant
+
+#ifndef BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE
+#   if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0551))
+#       define BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(t)
+#   else
+#       define BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(t)  \
+        , t* = 0
+#   endif
+#endif
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_pointer<U>::type
+get(
+      boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >* operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    ) BOOST_NOEXCEPT
+{
+    typedef typename add_pointer<U>::type U_ptr;
+    if (!operand) return static_cast<U_ptr>(0);
+
+    detail::variant::get_visitor<U> v;
+    return operand->apply_visitor(v);
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_pointer<const U>::type
+get(
+      const boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >* operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    ) BOOST_NOEXCEPT
+{
+    typedef typename add_pointer<const U>::type U_ptr;
+    if (!operand) return static_cast<U_ptr>(0);
+
+    detail::variant::get_visitor<const U> v;
+    return operand->apply_visitor(v);
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_reference<U>::type
+get(
+      boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >& operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    )
+{
+    typedef typename add_pointer<U>::type U_ptr;
+    U_ptr result = get<U>(&operand);
+
+    if (!result)
+        boost::throw_exception(bad_get());
+    return *result;
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_reference<const U>::type
+get(
+      const boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >& operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    )
+{
+    typedef typename add_pointer<const U>::type U_ptr;
+    U_ptr result = get<const U>(&operand);
+
+    if (!result)
+        boost::throw_exception(bad_get());
+    return *result;
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_GET_HPP

boost/variant/multivisitors.hpp

@@ -0,0 +1,143 @@
+//  Boost.Varaint
+//  Multivisitors defined here 
+//
+//  See http://www.boost.org for most recent version, including documentation.
+//
+//  Copyright Antony Polukhin, 2013.
+//
+//  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).
+
+#ifndef BOOST_VARIANT_MULTIVISITORS_HPP
+#define BOOST_VARIANT_MULTIVISITORS_HPP
+
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+#include <boost/variant.hpp>
+#include <boost/bind.hpp>
+
+#include <boost/preprocessor/repetition.hpp>
+#include <boost/preprocessor/punctuation/comma_if.hpp>
+#include <boost/preprocessor/arithmetic/add.hpp>
+#include <boost/preprocessor/arithmetic/sub.hpp>
+
+#ifndef BOOST_VARAINT_MAX_MULTIVIZITOR_PARAMS
+#   define BOOST_VARAINT_MAX_MULTIVIZITOR_PARAMS 4
+#endif
+
+namespace boost { 
+
+namespace detail { namespace variant {
+
+    template <class VisitorT, class Visitable1T, class Visitable2T>
+    struct two_variables_holder {
+    private:
+        VisitorT&       visitor_;
+        Visitable1T&    visitable1_;
+        Visitable2T&    visitable2_;
+
+        // required to supress warnings and enshure that we do not copy 
+        // this visitor
+        two_variables_holder& operator=(const two_variables_holder&);
+
+    public:
+        typedef BOOST_DEDUCED_TYPENAME VisitorT::result_type result_type;
+
+        explicit two_variables_holder(VisitorT& visitor, Visitable1T& visitable1, Visitable2T& visitable2) BOOST_NOEXCEPT 
+            : visitor_(visitor)
+            , visitable1_(visitable1)
+            , visitable2_(visitable2)
+        {}
+
+#define BOOST_VARIANT_OPERATOR_BEG()                            \
+    return ::boost::apply_visitor(                              \
+    ::boost::bind<result_type>(boost::ref(visitor_), _1, _2     \
+    /**/
+
+#define BOOST_VARIANT_OPERATOR_END()                            \
+    ), visitable1_, visitable2_);                               \
+    /**/
+
+#define BOOST_VARANT_VISITORS_VARIABLES_PRINTER(z, n, data)     \
+    BOOST_PP_COMMA() boost::ref( BOOST_PP_CAT(vis, n) )         \
+    /**/
+
+#define BOOST_VARIANT_VISIT(z, n, data)                                                     \
+    template <BOOST_PP_ENUM_PARAMS(BOOST_PP_ADD(n, 1), class VisitableUnwrapped)>           \
+    BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type) operator()(                          \
+        BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ADD(n, 1), VisitableUnwrapped, & vis)          \
+    ) const                                                                                 \
+    {                                                                                       \
+        BOOST_VARIANT_OPERATOR_BEG()                                                        \
+        BOOST_PP_REPEAT(BOOST_PP_ADD(n, 1), BOOST_VARANT_VISITORS_VARIABLES_PRINTER, ~)     \
+        BOOST_VARIANT_OPERATOR_END()                                                        \
+    }                                                                                       \
+    /**/
+
+BOOST_PP_REPEAT( BOOST_PP_SUB(BOOST_VARAINT_MAX_MULTIVIZITOR_PARAMS, 2), BOOST_VARIANT_VISIT, ~)
+#undef BOOST_VARIANT_OPERATOR_BEG
+#undef BOOST_VARIANT_OPERATOR_END
+#undef BOOST_VARANT_VISITORS_VARIABLES_PRINTER
+#undef BOOST_VARIANT_VISIT
+
+    };
+
+    template <class VisitorT, class Visitable1T, class Visitable2T>
+    inline two_variables_holder<VisitorT, Visitable1T, Visitable2T> make_two_variables_holder(
+            VisitorT& visitor, Visitable1T& visitable1, Visitable2T& visitable2
+        ) BOOST_NOEXCEPT
+    {
+        return two_variables_holder<VisitorT, Visitable1T, Visitable2T>(visitor, visitable1, visitable2);
+    }
+
+    template <class VisitorT, class Visitable1T, class Visitable2T>
+    inline two_variables_holder<const VisitorT, Visitable1T, Visitable2T> make_two_variables_holder(
+            const VisitorT& visitor, Visitable1T& visitable1, Visitable2T& visitable2
+        ) BOOST_NOEXCEPT
+    {
+        return two_variables_holder<const VisitorT, Visitable1T, Visitable2T>(visitor, visitable1, visitable2);
+    }
+
+}} // namespace detail::variant
+
+#define BOOST_VARIANT_APPLY_VISITOR_BEG()                                               \
+    return ::boost::apply_visitor(                                                      \
+            boost::detail::variant::make_two_variables_holder(visitor, var0 , var1),    \
+            var2                                                                        \
+    /**/
+
+#define BOOST_VARIANT_APPLY_VISITOR_END()                       \
+    );                                                          \
+    /**/
+
+#define BOOST_VARANT_VISITORS_VARIABLES_PRINTER(z, n, data)     \
+    BOOST_PP_COMMA() BOOST_PP_CAT(var, BOOST_PP_ADD(n, 3))      \
+    /**/
+
+#define BOOST_VARIANT_VISIT(z, n, data)                                                                 \
+    template <class Visitor BOOST_PP_COMMA() BOOST_PP_ENUM_PARAMS(BOOST_PP_ADD(n, 3), class T)>         \
+    inline BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(BOOST_DEDUCED_TYPENAME Visitor::result_type) apply_visitor( \
+        data BOOST_PP_COMMA() BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ADD(n, 3), T, & var)     \
+    )                                                                                                   \
+    {                                                                                                   \
+        BOOST_VARIANT_APPLY_VISITOR_BEG()                                                               \
+        BOOST_PP_REPEAT(n, BOOST_VARANT_VISITORS_VARIABLES_PRINTER, ~)                                  \
+        BOOST_VARIANT_APPLY_VISITOR_END()                                                               \
+    }                                                                                                   \
+    /**/
+
+BOOST_PP_REPEAT( BOOST_PP_SUB(BOOST_VARAINT_MAX_MULTIVIZITOR_PARAMS, 2), BOOST_VARIANT_VISIT, const Visitor& visitor)
+BOOST_PP_REPEAT( BOOST_PP_SUB(BOOST_VARAINT_MAX_MULTIVIZITOR_PARAMS, 2), BOOST_VARIANT_VISIT, Visitor& visitor)
+
+#undef BOOST_VARIANT_APPLY_VISITOR_BEG
+#undef BOOST_VARIANT_APPLY_VISITOR_END
+#undef BOOST_VARANT_VISITORS_VARIABLES_PRINTER
+#undef BOOST_VARIANT_VISIT
+    
+} // namespace boost
+
+#endif // BOOST_VARIANT_MULTIVISITORS_HPP
+

boost/variant/polymorphic_get.hpp

@@ -0,0 +1,170 @@
+//-----------------------------------------------------------------------------
+// boost variant/polymorphic_get.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2013 Antony Polukhin
+//
+// 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)
+
+#ifndef BOOST_VARIANT_POLYMORPHIC_GET_HPP
+#define BOOST_VARIANT_POLYMORPHIC_GET_HPP
+
+#include <exception>
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/throw_exception.hpp"
+#include "boost/utility/addressof.hpp"
+#include "boost/variant/variant_fwd.hpp"
+#include "boost/variant/get.hpp"
+
+#include "boost/type_traits/add_reference.hpp"
+#include "boost/type_traits/add_pointer.hpp"
+#include "boost/type_traits/is_base_of.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class bad_polymorphic_get
+//
+// The exception thrown in the event of a failed get of a value.
+//
+class BOOST_SYMBOL_VISIBLE bad_polymorphic_get
+    : public bad_get
+{
+public: // std::exception implementation
+
+    virtual const char * what() const BOOST_NOEXCEPT_OR_NOTHROW
+    {
+        return "boost::bad_polymorphic_get: "
+               "failed value get using boost::polymorphic_get";
+    }
+
+};
+
+//////////////////////////////////////////////////////////////////////////
+// function template get<T>
+//
+// Retrieves content of given variant object if content is of type T.
+// Otherwise: pointer ver. returns 0; reference ver. throws bad_get.
+//
+
+namespace detail { namespace variant {
+
+// (detail) class template get_polymorphic_visitor
+//
+// Generic static visitor that: if the value is of the specified
+// type or of a type derived from specified, returns a pointer
+// to the value it visits; else a null pointer.
+//
+template <typename Base>
+struct get_polymorphic_visitor
+{
+private: // private typedefs
+    typedef typename add_pointer<Base>::type pointer;
+    typedef typename add_reference<Base>::type reference;
+
+    pointer get(reference operand, boost::true_type) const BOOST_NOEXCEPT
+    {
+        return boost::addressof(operand);
+    }
+
+    template <class T>
+    pointer get(T&, boost::false_type) const BOOST_NOEXCEPT
+    {
+        return static_cast<pointer>(0);
+    }
+
+public: // visitor interfaces
+    typedef pointer result_type;
+
+    template <typename U>
+    pointer operator()(U& operand) const BOOST_NOEXCEPT
+    {
+        typedef boost::integral_constant<
+            bool,
+            boost::is_base_of<Base, U>::value || boost::is_same<Base, U>::value
+        > tag_t;
+        return get(operand, tag_t());
+    }
+};
+
+}} // namespace detail::variant
+
+#ifndef BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE
+#   if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0551))
+#       define BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(t)
+#   else
+#       define BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(t)  \
+        , t* = 0
+#   endif
+#endif
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_pointer<U>::type
+polymorphic_get(
+      boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >* operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    ) BOOST_NOEXCEPT
+{
+    typedef typename add_pointer<U>::type U_ptr;
+    if (!operand) return static_cast<U_ptr>(0);
+
+    detail::variant::get_polymorphic_visitor<U> v;
+    return operand->apply_visitor(v);
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_pointer<const U>::type
+polymorphic_get(
+      const boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >* operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    ) BOOST_NOEXCEPT
+{
+    typedef typename add_pointer<const U>::type U_ptr;
+    if (!operand) return static_cast<U_ptr>(0);
+
+    detail::variant::get_polymorphic_visitor<const U> v;
+    return operand->apply_visitor(v);
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_reference<U>::type
+polymorphic_get(
+      boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >& operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    )
+{
+    typedef typename add_pointer<U>::type U_ptr;
+    U_ptr result = polymorphic_get<U>(&operand);
+
+    if (!result)
+        boost::throw_exception(bad_polymorphic_get());
+    return *result;
+}
+
+template <typename U, BOOST_VARIANT_ENUM_PARAMS(typename T) >
+inline
+    typename add_reference<const U>::type
+polymorphic_get(
+      const boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >& operand
+      BOOST_VARIANT_AUX_GET_EXPLICIT_TEMPLATE_TYPE(U)
+    )
+{
+    typedef typename add_pointer<const U>::type U_ptr;
+    U_ptr result = polymorphic_get<const U>(&operand);
+
+    if (!result)
+        boost::throw_exception(bad_polymorphic_get());
+    return *result;
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_POLYMORPHIC_GET_HPP

boost/variant/recursive_variant.hpp

@@ -0,0 +1,209 @@
+//-----------------------------------------------------------------------------
+// boost variant/recursive_variant.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003 Eric Friedman
+// Copyright (c) 2013 Antony Polukhin
+//
+// 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)
+
+#ifndef BOOST_VARIANT_RECURSIVE_VARIANT_HPP
+#define BOOST_VARIANT_RECURSIVE_VARIANT_HPP
+
+#include "boost/variant/variant_fwd.hpp"
+#include "boost/variant/detail/enable_recursive.hpp"
+#include "boost/variant/detail/substitute_fwd.hpp"
+#include "boost/variant/detail/make_variant_list.hpp"
+#include "boost/variant/detail/over_sequence.hpp"
+
+#include "boost/mpl/aux_/lambda_arity_param.hpp"
+
+#include "boost/mpl/equal.hpp"
+#include "boost/mpl/eval_if.hpp"
+#include "boost/mpl/identity.hpp"
+#include "boost/mpl/if.hpp"
+#include "boost/mpl/protect.hpp"
+#include "boost/mpl/transform.hpp"
+#include "boost/type_traits/is_same.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/repeat.hpp"
+
+#include "boost/mpl/bool.hpp"
+#include "boost/mpl/is_sequence.hpp"
+#include "boost/variant/variant.hpp"
+
+namespace boost {
+
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction specialization substitute
+//
+// Handles embedded variant types when substituting for recursive_variant_.
+//
+
+#if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+template <
+      BOOST_VARIANT_ENUM_PARAMS(typename T)
+    , typename RecursiveVariant
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(typename Arity)
+    >
+struct substitute<
+      ::boost::variant<
+          recursive_flag< T0 >
+        , BOOST_VARIANT_ENUM_SHIFTED_PARAMS(T)
+        >
+    , RecursiveVariant
+    , ::boost::recursive_variant_
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(Arity)
+    >
+{
+    typedef ::boost::variant<
+          recursive_flag< T0 >
+        , BOOST_VARIANT_ENUM_SHIFTED_PARAMS(T)
+        > type;
+};
+
+template <
+      BOOST_VARIANT_ENUM_PARAMS(typename T)
+    , typename RecursiveVariant
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(typename Arity)
+    >
+struct substitute<
+      ::boost::variant<
+          ::boost::detail::variant::over_sequence< T0 >
+        , BOOST_VARIANT_ENUM_SHIFTED_PARAMS(T)
+        >
+    , RecursiveVariant
+    , ::boost::recursive_variant_
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(Arity)
+    >
+{
+private:
+
+    typedef T0 initial_types;
+
+    typedef typename mpl::transform<
+          initial_types
+        , mpl::protect< quoted_enable_recursive<RecursiveVariant,mpl::true_> >
+        >::type types;
+
+public:
+
+    typedef typename mpl::if_<
+          mpl::equal<initial_types, types, ::boost::is_same<mpl::_1, mpl::_2> >
+        , ::boost::variant<
+              ::boost::detail::variant::over_sequence< T0 >
+            , BOOST_VARIANT_ENUM_SHIFTED_PARAMS(T)
+            >
+        , ::boost::variant< over_sequence<types> >
+        >::type type;
+};
+
+template <
+      BOOST_VARIANT_ENUM_PARAMS(typename T)
+    , typename RecursiveVariant
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(typename Arity)
+    >
+struct substitute<
+      ::boost::variant< BOOST_VARIANT_ENUM_PARAMS(T) >
+    , RecursiveVariant
+    , ::boost::recursive_variant_
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(Arity)
+    >
+{
+#if !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+    
+    typedef ::boost::variant<
+        typename enable_recursive<   
+              T0              
+            , RecursiveVariant               
+            , mpl::true_                     
+        >::type,
+        typename enable_recursive<   
+              TN              
+            , RecursiveVariant               
+            , mpl::true_                     
+        >::type...  
+    > type;
+
+#else // defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+private: // helpers, for metafunction result (below)
+
+    #define BOOST_VARIANT_AUX_ENABLE_RECURSIVE_TYPEDEFS(z,N,_)  \
+        typedef typename enable_recursive<   \
+              BOOST_PP_CAT(T,N)              \
+            , RecursiveVariant               \
+            , mpl::true_                     \
+            >::type BOOST_PP_CAT(wknd_T,N);  \
+        /**/
+
+    BOOST_PP_REPEAT(
+          BOOST_VARIANT_LIMIT_TYPES
+        , BOOST_VARIANT_AUX_ENABLE_RECURSIVE_TYPEDEFS
+        , _
+        )
+
+    #undef BOOST_VARIANT_AUX_ENABLE_RECURSIVE_TYPEDEFS
+
+public: // metafunction result
+
+    typedef ::boost::variant< BOOST_VARIANT_ENUM_PARAMS(wknd_T) > type;
+#endif // BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES workaround
+};
+
+#else // defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+//
+// no specializations: embedded variants unsupported on these compilers!
+//
+
+#endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+}} // namespace detail::variant
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction make_recursive_variant
+//
+// See docs and boost/variant/variant_fwd.hpp for more information.
+//
+template < BOOST_VARIANT_ENUM_PARAMS(typename T) >
+struct make_recursive_variant
+{
+public: // metafunction result
+
+    typedef boost::variant<
+          detail::variant::recursive_flag< T0 >
+        , BOOST_VARIANT_ENUM_SHIFTED_PARAMS(T)
+        > type;
+
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction make_recursive_variant_over
+//
+// See docs and boost/variant/variant_fwd.hpp for more information.
+//
+template <typename Types>
+struct make_recursive_variant_over
+{
+private: // precondition assertions
+
+    BOOST_STATIC_ASSERT(( ::boost::mpl::is_sequence<Types>::value ));
+
+public: // metafunction result
+
+    typedef typename make_recursive_variant<
+          detail::variant::over_sequence< Types >
+        >::type type;
+
+};
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_RECURSIVE_VARIANT_HPP

boost/variant/recursive_wrapper.hpp

@@ -0,0 +1,158 @@
+//-----------------------------------------------------------------------------
+// boost variant/recursive_wrapper.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman, Itay Maman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_RECURSIVE_WRAPPER_HPP
+#define BOOST_VARIANT_RECURSIVE_WRAPPER_HPP
+
+#include "boost/variant/recursive_wrapper_fwd.hpp"
+#include "boost/variant/detail/move.hpp"
+#include "boost/checked_delete.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class template recursive_wrapper
+//
+// See docs and recursive_wrapper_fwd.hpp for more information.
+//
+
+template <typename T>
+class recursive_wrapper
+{
+public: // typedefs
+
+    typedef T type;
+
+private: // representation
+
+    T* p_;
+
+public: // structors
+
+    ~recursive_wrapper();
+    recursive_wrapper();
+
+    recursive_wrapper(const recursive_wrapper& operand);
+    recursive_wrapper(const T& operand);
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES 
+    recursive_wrapper(recursive_wrapper&& operand);
+    recursive_wrapper(T&& operand);
+#endif
+
+private: // helpers, for modifiers (below)
+
+    void assign(const T& rhs);
+
+public: // modifiers
+
+    recursive_wrapper& operator=(const recursive_wrapper& rhs)
+    {
+        assign( rhs.get() );
+        return *this;
+    }
+
+    recursive_wrapper& operator=(const T& rhs)
+    {
+        assign( rhs );
+        return *this;
+    }
+
+    void swap(recursive_wrapper& operand) BOOST_NOEXCEPT
+    {
+        T* temp = operand.p_;
+        operand.p_ = p_;
+        p_ = temp;
+    }
+
+    
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES 
+    recursive_wrapper& operator=(recursive_wrapper&& rhs) BOOST_NOEXCEPT
+    {
+        swap(rhs);
+        return *this;
+    }
+
+    recursive_wrapper& operator=(T&& rhs)
+    {
+        get() = detail::variant::move(rhs);
+        return *this;
+    }
+#endif
+
+public: // queries
+
+    T& get() { return *get_pointer(); }
+    const T& get() const { return *get_pointer(); }
+
+    T* get_pointer() { return p_; }
+    const T* get_pointer() const { return p_; }
+
+};
+
+template <typename T>
+recursive_wrapper<T>::~recursive_wrapper()
+{
+    boost::checked_delete(p_);
+}
+
+template <typename T>
+recursive_wrapper<T>::recursive_wrapper()
+    : p_(new T)
+{
+}
+
+template <typename T>
+recursive_wrapper<T>::recursive_wrapper(const recursive_wrapper& operand)
+    : p_(new T( operand.get() ))
+{
+}
+
+template <typename T>
+recursive_wrapper<T>::recursive_wrapper(const T& operand)
+    : p_(new T(operand))
+{
+}
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES 
+template <typename T>
+recursive_wrapper<T>::recursive_wrapper(recursive_wrapper&& operand)
+    : p_(new T( detail::variant::move(operand.get()) ))
+{
+}
+
+template <typename T>
+recursive_wrapper<T>::recursive_wrapper(T&& operand)
+    : p_(new T( detail::variant::move(operand) ))
+{
+}
+#endif
+
+template <typename T>
+void recursive_wrapper<T>::assign(const T& rhs)
+{
+    this->get() = rhs;
+}
+
+// function template swap
+//
+// Swaps two recursive_wrapper<T> objects of the same type T.
+//
+template <typename T>
+inline void swap(recursive_wrapper<T>& lhs, recursive_wrapper<T>& rhs) BOOST_NOEXCEPT
+{
+    lhs.swap(rhs);
+}
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_RECURSIVE_WRAPPER_HPP

boost/variant/recursive_wrapper_fwd.hpp

@@ -0,0 +1,103 @@
+//-----------------------------------------------------------------------------
+// boost variant/recursive_wrapper_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002
+// Eric Friedman, Itay Maman
+//
+// Portions Copyright (C) 2002 David Abrahams
+//
+// 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)
+
+#ifndef BOOST_VARIANT_RECURSIVE_WRAPPER_FWD_HPP
+#define BOOST_VARIANT_RECURSIVE_WRAPPER_FWD_HPP
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+
+#include "boost/mpl/aux_/lambda_support.hpp"
+
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_def.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class template recursive_wrapper
+//
+// Enables recursive types in templates by breaking cyclic dependencies.
+//
+// For example:
+//
+//   class my;
+//
+//   typedef variant< int, recursive_wrapper<my> > var;
+//
+//   class my {
+//     var var_;
+//     ...
+//   };
+//
+template <typename T> class recursive_wrapper;
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction is_recursive_wrapper (modeled on code by David Abrahams)
+//
+// True iff specified type matches recursive_wrapper<T>.
+//
+
+namespace detail {
+
+
+template <typename T>
+struct is_recursive_wrapper_impl
+    : mpl::false_
+{
+};
+
+template <typename T>
+struct is_recursive_wrapper_impl< recursive_wrapper<T> >
+    : mpl::true_
+{
+};
+
+
+} // namespace detail
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(
+      is_recursive_wrapper
+    , T
+    , (::boost::detail::is_recursive_wrapper_impl<T>::value)
+    )
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction unwrap_recursive
+//
+// If specified type T matches recursive_wrapper<U>, then U; else T.
+//
+
+
+template <typename T>
+struct unwrap_recursive
+{
+    typedef T type;
+
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,unwrap_recursive,(T))
+};
+
+template <typename T>
+struct unwrap_recursive< recursive_wrapper<T> >
+{
+    typedef T type;
+
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(1,unwrap_recursive,(T))
+};
+
+
+} // namespace boost
+
+#include "boost/type_traits/detail/bool_trait_undef.hpp"
+
+#endif // BOOST_VARIANT_RECURSIVE_WRAPPER_FWD_HPP

boost/variant/static_visitor.hpp

@@ -0,0 +1,96 @@
+//-----------------------------------------------------------------------------
+// boost variant/static_visitor.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_STATIC_VISITOR_HPP
+#define BOOST_VARIANT_STATIC_VISITOR_HPP
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+
+#include "boost/mpl/if.hpp"
+#include "boost/type_traits/is_base_and_derived.hpp"
+
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_def.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// class template static_visitor
+//
+// An empty base class that typedefs the return type of a deriving static
+// visitor. The class is analogous to std::unary_function in this role.
+//
+
+namespace detail {
+
+    struct is_static_visitor_tag { };
+
+    typedef void static_visitor_default_return;
+
+} // namespace detail
+
+template <typename R = ::boost::detail::static_visitor_default_return>
+class static_visitor
+    : public detail::is_static_visitor_tag
+{
+public: // typedefs
+
+    typedef R result_type;
+
+protected: // for use as base class only
+#if !defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS)
+    static_visitor() = default;
+    ~static_visitor() = default;
+#else
+    static_visitor()  BOOST_NOEXCEPT { }
+    ~static_visitor()  BOOST_NOEXCEPT { }
+#endif
+};
+
+//////////////////////////////////////////////////////////////////////////
+// metafunction is_static_visitor
+//
+// Value metafunction indicates whether the specified type derives from
+// static_visitor<...>.
+//
+// NOTE #1: This metafunction does NOT check whether the specified type
+//  fulfills the requirements of the StaticVisitor concept.
+//
+// NOTE #2: This template never needs to be specialized!
+//
+
+namespace detail {
+
+template <typename T>
+struct is_static_visitor_impl
+{
+    BOOST_STATIC_CONSTANT(bool, value = 
+        (::boost::is_base_and_derived< 
+            detail::is_static_visitor_tag,
+            T
+        >::value));
+};
+
+} // namespace detail
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(
+      is_static_visitor
+    , T
+    , (::boost::detail::is_static_visitor_impl<T>::value)
+    )
+
+} // namespace boost
+
+#include "boost/type_traits/detail/bool_trait_undef.hpp"
+
+#endif // BOOST_VARIANT_STATIC_VISITOR_HPP

boost/variant/variant_fwd.hpp

@@ -0,0 +1,331 @@
+//-----------------------------------------------------------------------------
+// boost variant/variant_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003 Eric Friedman, Itay Maman
+// Copyright (c) 2013 Antony Polukhin
+//
+// 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)
+
+#ifndef BOOST_VARIANT_VARIANT_FWD_HPP
+#define BOOST_VARIANT_VARIANT_FWD_HPP
+
+#include "boost/variant/detail/config.hpp"
+
+#include "boost/blank_fwd.hpp"
+#include "boost/mpl/arg.hpp"
+#include "boost/mpl/limits/arity.hpp"
+#include "boost/mpl/aux_/na.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/enum.hpp"
+#include "boost/preprocessor/enum_params.hpp"
+#include "boost/preprocessor/enum_shifted_params.hpp"
+#include "boost/preprocessor/repeat.hpp"
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_NO_REFERENCE_SUPPORT
+//
+// Defined if variant does not support references as bounded types. 
+//
+#if defined(BOOST_VARIANT_AUX_BROKEN_CONSTRUCTOR_TEMPLATE_ORDERING) \
+ && !defined(BOOST_VARIANT_AUX_HAS_CONSTRUCTOR_TEMPLATE_ORDERING_SFINAE_WKND) \
+ && !defined(BOOST_VARIANT_NO_REFERENCE_SUPPORT)
+#   define BOOST_VARIANT_NO_REFERENCE_SUPPORT
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_NO_TYPE_SEQUENCE_SUPPORT
+//
+// Defined if variant does not support make_variant_over (see below). 
+//
+#if defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+#   define BOOST_VARIANT_NO_TYPE_SEQUENCE_SUPPORT
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT
+//
+// Defined if make_recursive_variant cannot be supported as documented.
+//
+// Note: Currently, MPL lambda facility is used as workaround if defined, and
+// so only types declared w/ MPL lambda workarounds will work.
+//
+
+#include "boost/variant/detail/substitute_fwd.hpp"
+
+#if defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE) \
+  && !defined(BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT)
+#   define BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT
+#endif
+
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES
+//
+
+/* 
+    GCC before 4.0 had no variadic tempaltes; 
+    GCC 4.6 has incomplete implementation of variadic templates.
+
+    MSVC2013 has variadic templates, but they have issues.
+*/
+#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) \
+  || (defined(__GNUC__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 7)) \
+  || (defined(_MSC_VER) && (_MSC_VER <= 1800)) \
+  || defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE) \
+  || defined (BOOST_VARIANT_NO_TYPE_SEQUENCE_SUPPORT)
+
+#ifndef BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES
+#   define BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES
+#endif
+
+#endif
+
+#if !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+#include <boost/preprocessor/seq/size.hpp>
+
+#define BOOST_VARIANT_CLASS_OR_TYPENAME_TO_SEQ_class class)(
+#define BOOST_VARIANT_CLASS_OR_TYPENAME_TO_SEQ_typename typename)(
+
+#define BOOST_VARIANT_CLASS_OR_TYPENAME_TO_VARIADIC_class class...
+#define BOOST_VARIANT_CLASS_OR_TYPENAME_TO_VARIADIC_typename typename...
+
+#define ARGS_VARIADER_1(x) x ## N...
+#define ARGS_VARIADER_2(x) BOOST_VARIANT_CLASS_OR_TYPENAME_TO_VARIADIC_ ## x ## N
+
+#define BOOST_VARIANT_MAKE_VARIADIC(sequence, x)        BOOST_VARIANT_MAKE_VARIADIC_I(BOOST_PP_SEQ_SIZE(sequence), x)
+#define BOOST_VARIANT_MAKE_VARIADIC_I(argscount, x)     BOOST_VARIANT_MAKE_VARIADIC_II(argscount, x)
+#define BOOST_VARIANT_MAKE_VARIADIC_II(argscount, orig) ARGS_VARIADER_ ## argscount(orig)
+
+///////////////////////////////////////////////////////////////////////////////
+// BOOST_VARIANT_ENUM_PARAMS and BOOST_VARIANT_ENUM_SHIFTED_PARAMS
+//
+// Convenience macro for enumeration of variant params.
+// When variadic templates are available expands:
+//      BOOST_VARIANT_ENUM_PARAMS(class Something)      => class Something0, class... SomethingN
+//      BOOST_VARIANT_ENUM_PARAMS(typename Something)   => typename Something0, typename... SomethingN
+//      BOOST_VARIANT_ENUM_PARAMS(Something)            => Something0, SomethingN...
+//      BOOST_VARIANT_ENUM_PARAMS(Something)            => Something0, SomethingN...
+//      BOOST_VARIANT_ENUM_SHIFTED_PARAMS(class Something)      => class... SomethingN
+//      BOOST_VARIANT_ENUM_SHIFTED_PARAMS(typename Something)   => typename... SomethingN
+//      BOOST_VARIANT_ENUM_SHIFTED_PARAMS(Something)            => SomethingN...
+//      BOOST_VARIANT_ENUM_SHIFTED_PARAMS(Something)            => SomethingN...
+//
+// Rationale: Cleaner, simpler code for clients of variant library. Minimal 
+// code modifications to move from C++03 to C++11.
+//
+// With BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES defined
+// will be used BOOST_VARIANT_ENUM_PARAMS and BOOST_VARIANT_ENUM_SHIFTED_PARAMS from below `#else`
+//
+
+#define BOOST_VARIANT_ENUM_PARAMS(x) \
+    x ## 0, \
+    BOOST_VARIANT_MAKE_VARIADIC( (BOOST_VARIANT_CLASS_OR_TYPENAME_TO_SEQ_ ## x), x) \
+    /**/
+
+#define BOOST_VARIANT_ENUM_SHIFTED_PARAMS(x) \
+    BOOST_VARIANT_MAKE_VARIADIC( (BOOST_VARIANT_CLASS_OR_TYPENAME_TO_SEQ_ ## x), x) \
+    /**/
+
+#else // defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_LIMIT_TYPES
+//
+// Implementation-defined preprocessor symbol describing the actual
+// length of variant's pseudo-variadic template parameter list.
+//
+#include "boost/mpl/limits/list.hpp"
+#define BOOST_VARIANT_LIMIT_TYPES \
+    BOOST_MPL_LIMIT_LIST_SIZE
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_RECURSIVE_VARIANT_MAX_ARITY
+//
+// Exposes maximum allowed arity of class templates with recursive_variant
+// arguments. That is,
+//   make_recursive_variant< ..., T<[1], recursive_variant_, ... [N]> >.
+//
+#include "boost/mpl/limits/arity.hpp"
+#define BOOST_VARIANT_RECURSIVE_VARIANT_MAX_ARITY \
+    BOOST_MPL_LIMIT_METAFUNCTION_ARITY
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_ENUM_PARAMS
+//
+// Convenience macro for enumeration of BOOST_VARIANT_LIMIT_TYPES params.
+//
+// Rationale: Cleaner, simpler code for clients of variant library.
+//
+#define BOOST_VARIANT_ENUM_PARAMS( param )  \
+    BOOST_PP_ENUM_PARAMS(BOOST_VARIANT_LIMIT_TYPES, param)
+
+///////////////////////////////////////////////////////////////////////////////
+// macro BOOST_VARIANT_ENUM_SHIFTED_PARAMS
+//
+// Convenience macro for enumeration of BOOST_VARIANT_LIMIT_TYPES-1 params.
+//
+#define BOOST_VARIANT_ENUM_SHIFTED_PARAMS( param )  \
+    BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_VARIANT_LIMIT_TYPES, param)
+
+#endif // BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES workaround
+
+
+namespace boost {
+
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class void_ and class template convert_void
+// 
+// Provides the mechanism by which void(NN) types are converted to
+// mpl::void_ (and thus can be passed to mpl::list).
+//
+// Rationale: This is particularly needed for the using-declarations
+// workaround (below), but also to avoid associating mpl namespace with
+// variant in argument dependent lookups (which used to happen because of
+// defaulting of template parameters to mpl::void_).
+//
+
+struct void_;
+
+template <typename T>
+struct convert_void
+{
+    typedef T type;
+};
+
+template <>
+struct convert_void< void_ >
+{
+    typedef mpl::na type;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// (workaround) BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE
+//
+// Needed to work around compilers that don't support using-declaration
+// overloads. (See the variant::initializer workarounds below.)
+//
+
+#if defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+// (detail) tags voidNN -- NN defined on [0, BOOST_VARIANT_LIMIT_TYPES)
+//
+// Defines void types that are each unique and specializations of
+// convert_void that yields mpl::na for each voidNN type.
+//
+
+#define BOOST_VARIANT_DETAIL_DEFINE_VOID_N(z,N,_)          \
+    struct BOOST_PP_CAT(void,N);                           \
+                                                           \
+    template <>                                            \
+    struct convert_void< BOOST_PP_CAT(void,N) >            \
+    {                                                      \
+        typedef mpl::na type;                              \
+    };                                                     \
+    /**/
+
+BOOST_PP_REPEAT(
+      BOOST_VARIANT_LIMIT_TYPES
+    , BOOST_VARIANT_DETAIL_DEFINE_VOID_N
+    , _
+    )
+
+#undef BOOST_VARIANT_DETAIL_DEFINE_VOID_N
+
+#endif // BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE workaround
+
+}} // namespace detail::variant
+
+#if !defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+#   define BOOST_VARIANT_AUX_DECLARE_PARAMS BOOST_VARIANT_ENUM_PARAMS(typename T)
+#else // defined(BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES)
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) macro BOOST_VARIANT_AUX_DECLARE_PARAM
+//
+// Template parameter list for variant and recursive_variant declarations.
+//
+
+#if !defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+#   define BOOST_VARIANT_AUX_DECLARE_PARAMS_IMPL(z, N, T) \
+    typename BOOST_PP_CAT(T,N) = detail::variant::void_ \
+    /**/
+
+#else // defined(BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE)
+
+#   define BOOST_VARIANT_AUX_DECLARE_PARAMS_IMPL(z, N, T) \
+    typename BOOST_PP_CAT(T,N) = BOOST_PP_CAT(detail::variant::void,N) \
+    /**/
+
+#endif // BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE workaround
+
+#define BOOST_VARIANT_AUX_DECLARE_PARAMS \
+    BOOST_PP_ENUM( \
+          BOOST_VARIANT_LIMIT_TYPES \
+        , BOOST_VARIANT_AUX_DECLARE_PARAMS_IMPL \
+        , T \
+        ) \
+    /**/
+
+#endif // BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES workaround
+
+///////////////////////////////////////////////////////////////////////////////
+// class template variant (concept inspired by Andrei Alexandrescu)
+//
+// Efficient, type-safe bounded discriminated union.
+//
+// Preconditions:
+//  - Each type must be unique.
+//  - No type may be const-qualified.
+//
+// Proper declaration form:
+//   variant<types>    (where types is a type-sequence)
+// or
+//   variant<T0,T1,...,Tn>  (where T0 is NOT a type-sequence)
+//
+template < BOOST_VARIANT_AUX_DECLARE_PARAMS > class variant;
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction make_recursive_variant
+//
+// Exposes a boost::variant with recursive_variant_ tags (below) substituted
+// with the variant itself (wrapped as needed with boost::recursive_wrapper).
+//
+template < BOOST_VARIANT_AUX_DECLARE_PARAMS > struct make_recursive_variant;
+
+#undef BOOST_VARIANT_AUX_DECLARE_PARAMS_IMPL
+#undef BOOST_VARIANT_AUX_DECLARE_PARAMS
+
+///////////////////////////////////////////////////////////////////////////////
+// type recursive_variant_
+//
+// Tag type indicates where recursive variant substitution should occur.
+//
+#if !defined(BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT)
+    struct recursive_variant_ {};
+#else
+    typedef mpl::arg<1> recursive_variant_;
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction make_variant_over
+//
+// Result is a variant w/ types of the specified type sequence.
+//
+template <typename Types> struct make_variant_over;
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction make_recursive_variant_over
+//
+// Result is a recursive variant w/ types of the specified type sequence.
+//
+template <typename Types> struct make_recursive_variant_over;
+
+} // namespace boost
+
+#endif // BOOST_VARIANT_VARIANT_FWD_HPP

boost/variant/visitor_ptr.hpp

@@ -0,0 +1,117 @@
+//-----------------------------------------------------------------------------
+// boost variant/visitor_ptr.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman
+//
+// 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)
+
+#ifndef BOOST_VARIANT_VISITOR_PTR_HPP
+#define BOOST_VARIANT_VISITOR_PTR_HPP
+
+#include "boost/variant/bad_visit.hpp"
+#include "boost/variant/static_visitor.hpp"
+
+#include "boost/mpl/eval_if.hpp"
+#include "boost/mpl/identity.hpp"
+#include "boost/throw_exception.hpp"
+#include "boost/type_traits/add_reference.hpp"
+#include "boost/type_traits/is_reference.hpp"
+#include "boost/type_traits/is_void.hpp"
+
+namespace boost {
+
+//////////////////////////////////////////////////////////////////////////
+// function template visitor_ptr
+//
+// Adapts a function pointer for use as visitor capable of handling
+// values of a single type. Throws bad_visit if inappropriately applied.
+//
+template <typename T, typename R>
+class visitor_ptr_t
+    : public static_visitor<R>
+{
+private: // representation
+
+    typedef R (*visitor_t)(T);
+
+    visitor_t visitor_;
+
+public: // typedefs
+
+    typedef R result_type;
+
+private: // private typedefs
+
+    typedef typename mpl::eval_if<
+          is_reference<T>
+        , mpl::identity<T>
+        , add_reference<const T>
+        >::type argument_fwd_type;
+
+public: // structors
+
+    explicit visitor_ptr_t(visitor_t visitor) BOOST_NOEXCEPT
+      : visitor_(visitor)
+    {
+    }
+
+public: // static visitor interfaces
+
+    template <typename U>
+    result_type operator()(const U&) const
+    {
+        boost::throw_exception(bad_visit());
+    }
+
+#if !defined(BOOST_NO_VOID_RETURNS)
+
+public: // static visitor interfaces, cont.
+
+    result_type operator()(argument_fwd_type operand) const
+    {
+        return visitor_(operand);
+    }
+
+#else // defined(BOOST_NO_VOID_RETURNS)
+
+private: // helpers, for static visitor interfaces (below)
+
+    result_type execute_impl(argument_fwd_type operand, mpl::false_) const
+    {
+        return visitor_(operand);
+    }
+
+        BOOST_VARIANT_AUX_RETURN_VOID_TYPE
+    execute_impl(argument_fwd_type operand, mpl::true_) const
+    {
+        visitor_(operand);
+        BOOST_VARIANT_AUX_RETURN_VOID;
+    }
+
+public: // static visitor interfaces, cont.
+
+        BOOST_VARIANT_AUX_GENERIC_RESULT_TYPE(result_type)
+    operator()(argument_fwd_type operand) const
+    {
+        typedef typename is_void<result_type>::type has_void_result;
+        return execute_impl(operand, has_void_result());
+    }
+
+#endif // BOOST_NO_VOID_RETURNS workaround
+
+};
+
+template <typename R, typename T>
+inline visitor_ptr_t<T,R> visitor_ptr(R (*visitor)(T))
+{
+    return visitor_ptr_t<T,R>(visitor);
+}
+
+} // namespace boost
+
+#endif// BOOST_VISITOR_VISITOR_PTR_HPP

build.cmd

@@ -8,4 +8,5 @@ bcp ^
     boost/range/algorithm_ext/ ^
     boost/smart_ptr/intrusive_ptr.hpp ^
     boost/optional.hpp ^
+    boost/variant/ ^
     --boost="%BOOST_PATH%" .