update boost

linx64/include/boost/functional/factory.hpp

@@ -1,214 +1,365 @@
-/*=============================================================================
-    Copyright (c) 2007 Tobias Schwinger
-  
-    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).
-==============================================================================*/
+/*
+Copyright 2007 Tobias Schwinger
 
-#ifndef BOOST_FUNCTIONAL_FACTORY_HPP_INCLUDED
-#   ifndef BOOST_PP_IS_ITERATING
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
 
-#     include <boost/preprocessor/iteration/iterate.hpp>
-#     include <boost/preprocessor/repetition/enum_params.hpp>
-#     include <boost/preprocessor/repetition/enum_binary_params.hpp>
-#     include <boost/preprocessor/repetition/enum_trailing_params.hpp>
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#ifndef BOOST_FUNCTIONAL_FACTORY_HPP
+#define BOOST_FUNCTIONAL_FACTORY_HPP
 
-#     include <new>
-#     include <boost/pointee.hpp>
-#     include <boost/get_pointer.hpp>
-#     include <boost/non_type.hpp>
-#     include <boost/type_traits/remove_cv.hpp>
+#include <boost/config.hpp>
+#include <boost/core/empty_value.hpp>
+#include <boost/core/pointer_traits.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#if !defined(BOOST_NO_CXX11_ALLOCATOR)
+#include <memory>
+#endif
+#include <new>
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+#include <utility>
+#endif
 
-#     if defined(BOOST_FUNCTIONAL_FACTORY_SUPPORT_NONE_T)
-#       include <boost/none_t.hpp>
-#     endif
+namespace boost {
 
-#     ifndef BOOST_FUNCTIONAL_FACTORY_MAX_ARITY
-#       define BOOST_FUNCTIONAL_FACTORY_MAX_ARITY 10
-#     elif BOOST_FUNCTIONAL_FACTORY_MAX_ARITY < 3
-#       undef  BOOST_FUNCTIONAL_FACTORY_MAX_ARITY
-#       define BOOST_FUNCTIONAL_FACTORY_MAX_ARITY 3
-#     endif
+enum factory_alloc_propagation {
+    factory_alloc_for_pointee_and_deleter,
+    factory_passes_alloc_to_smart_pointer
+};
 
-namespace boost
+namespace detail {
+
+template<factory_alloc_propagation>
+struct fc_tag { };
+
+#if !defined(BOOST_NO_CXX11_ALLOCATOR)
+template<class A, class T>
+struct fc_rebind {
+    typedef typename std::allocator_traits<A>::template rebind_alloc<T> type;
+};
+
+template<class A>
+struct fc_pointer {
+    typedef typename std::allocator_traits<A>::pointer type;
+};
+#else
+template<class A, class T>
+struct fc_rebind {
+    typedef typename A::template rebind<T>::other type;
+};
+
+template<class A>
+struct fc_pointer {
+    typedef typename A::pointer type;
+};
+#endif
+
+#if !defined(BOOST_NO_CXX11_ALLOCATOR) && \
+    !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+template<class A, class T>
+inline void
+fc_destroy(A& a, T* p)
 {
-    enum factory_alloc_propagation
-    {
-        factory_alloc_for_pointee_and_deleter,
-        factory_passes_alloc_to_smart_pointer
-    };
-
-#if defined(BOOST_FUNCTIONAL_FACTORY_SUPPORT_NONE_T)
-    template< typename Pointer, class Allocator = boost::none_t,
-        factory_alloc_propagation AP = factory_alloc_for_pointee_and_deleter >
-    class factory;
-#else
-    template< typename Pointer, class Allocator = void,
-        factory_alloc_propagation AP = factory_alloc_for_pointee_and_deleter >
-    class factory;
-#endif
-
-    //----- ---- --- -- - -  -   -
-
-    template< typename Pointer, factory_alloc_propagation AP >
-    class factory<Pointer, void, AP>
-    {
-      public:
-        typedef typename boost::remove_cv<Pointer>::type result_type;
-        typedef typename boost::pointee<result_type>::type value_type;
-
-        factory()
-        { }
-
-#     define BOOST_PP_FILENAME_1 <boost/functional/factory.hpp>
-#     define BOOST_PP_ITERATION_LIMITS (0,BOOST_FUNCTIONAL_FACTORY_MAX_ARITY)
-#     include BOOST_PP_ITERATE()
-    };
-
-#if defined(BOOST_FUNCTIONAL_FACTORY_SUPPORT_NONE_T)
-    template< typename Pointer, factory_alloc_propagation AP >
-    class factory<Pointer, boost::none_t, AP>
-        : public factory<Pointer, void, AP>
-    {};
-#endif
-
-    template< class Pointer, class Allocator, factory_alloc_propagation AP >
-    class factory
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-        : private Allocator::template rebind< typename boost::pointee<
-            typename boost::remove_cv<Pointer>::type >::type >::other
-#else
-        : private std::allocator_traits<Allocator>::template rebind_alloc<
-            typename boost::pointee< typename boost::remove_cv<Pointer>::type >::type >
-#endif
-    {
-      public:
-        typedef typename boost::remove_cv<Pointer>::type result_type;
-        typedef typename boost::pointee<result_type>::type value_type;
-
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-        typedef typename Allocator::template rebind<value_type>::other
-            allocator_type;
-#else
-        typedef typename std::allocator_traits<Allocator>::template rebind_alloc<value_type>
-            allocator_type;
-        typedef std::allocator_traits<allocator_type> allocator_traits;
-#endif
-
-        explicit factory(allocator_type const & a = allocator_type())
-          : allocator_type(a)
-        { }
-
-      private:
-
-        struct deleter
-            : allocator_type
-        {
-            inline deleter(allocator_type const& that) 
-              : allocator_type(that)
-            { }
-
-            allocator_type& get_allocator() const
-            {
-                return *const_cast<allocator_type*>(
-                    static_cast<allocator_type const*>(this));
-            }
-
-            void operator()(value_type* ptr) const
-            {
-                if (!! ptr) {
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-                    ptr->~value_type();
-                    const_cast<allocator_type*>(static_cast<allocator_type const*>(
-                        this))->deallocate(ptr,1);
-#else
-                    allocator_traits::destroy(this->get_allocator(), ptr);
-                    allocator_traits::deallocate(this->get_allocator(),ptr,1);
-#endif
-                }
-            }
-        };
-
-        inline allocator_type& get_allocator() const
-        {
-            return *const_cast<allocator_type*>(
-                static_cast<allocator_type const*>(this));
-        }
-
-        inline result_type make_pointer(value_type* ptr, boost::non_type<
-            factory_alloc_propagation,factory_passes_alloc_to_smart_pointer>)
-        const
-        {
-            return result_type(ptr,deleter(this->get_allocator()));
-        }
-        inline result_type make_pointer(value_type* ptr, boost::non_type<
-            factory_alloc_propagation,factory_alloc_for_pointee_and_deleter>)
-        const
-        {
-            return result_type(ptr,deleter(this->get_allocator()),
-                this->get_allocator());
-        }
-
-      public:
-
-#     define BOOST_TMP_MACRO
-#     define BOOST_PP_FILENAME_1 <boost/functional/factory.hpp>
-#     define BOOST_PP_ITERATION_LIMITS (0,BOOST_FUNCTIONAL_FACTORY_MAX_ARITY)
-#     include BOOST_PP_ITERATE()
-#     undef BOOST_TMP_MACRO
-    };
-
-    template< typename Pointer, class Allocator, factory_alloc_propagation AP > 
-    class factory<Pointer&, Allocator, AP>;
-    // forbidden, would create a dangling reference
+    std::allocator_traits<A>::destroy(a, p);
 }
+#else
+template<class A, class T>
+inline void
+fc_destroy(A&, T* p)
+{
+    p->~T();
+}
+#endif
 
-#     define BOOST_FUNCTIONAL_FACTORY_HPP_INCLUDED
-#   else // defined(BOOST_PP_IS_ITERATING)
-#     define N BOOST_PP_ITERATION()
-#     if !defined(BOOST_TMP_MACRO)
-#       if N > 0
-    template< BOOST_PP_ENUM_PARAMS(N, typename T) >
-#       endif
-    inline result_type operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,& a)) const
-    {
-        return result_type( new value_type(BOOST_PP_ENUM_PARAMS(N,a)) );
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+#if !defined(BOOST_NO_CXX11_ALLOCATOR)
+template<class A, class T, class... Args>
+inline void
+fc_construct(A& a, T* p, Args&&... args)
+{
+    std::allocator_traits<A>::construct(a, p, std::forward<Args>(args)...);
+}
+#else
+template<class A, class T, class... Args>
+inline void
+fc_construct(A&, T* p, Args&&... args)
+{
+    ::new((void*)p) T(std::forward<Args>(args)...);
+}
+#endif
+#endif
+
+template<class A>
+class fc_delete
+    : boost::empty_value<A> {
+    typedef boost::empty_value<A> base;
+
+public:
+    explicit fc_delete(const A& a) BOOST_NOEXCEPT
+        : base(boost::empty_init_t(), a) { }
+
+    void operator()(typename fc_pointer<A>::type p) {
+        boost::detail::fc_destroy(base::get(), boost::to_address(p));
+        base::get().deallocate(p, 1);
     }
-#     else // defined(BOOST_TMP_MACRO)
-#       if N > 0
-    template< BOOST_PP_ENUM_PARAMS(N, typename T) >
-#       endif
-    inline result_type operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,& a)) const
-    {
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-        value_type* memory = this->get_allocator().allocate(1);
-#else
-        value_type* memory = allocator_traits::allocate(this->get_allocator(), 1);
-#endif
-        try
-        {
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-            new(memory) value_type(BOOST_PP_ENUM_PARAMS(N,a));
-#else
-            allocator_traits::construct(this->get_allocator(), memory
-                BOOST_PP_ENUM_TRAILING_PARAMS(N,a));
-#endif
-        }
-        catch (...) {
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
-            this->get_allocator().deallocate(memory,1);
-#else
-            allocator_traits::deallocate(this->get_allocator(), memory, 1);
-#endif
-            throw;
-        }
+};
 
-        return make_pointer(memory, boost::non_type<factory_alloc_propagation,AP>());
+template<class R, class A>
+class fc_allocate {
+public:
+    explicit fc_allocate(const A& a)
+        : a_(a)
+        , p_(a_.allocate(1)) { }
+
+    ~fc_allocate() {
+        if (p_) {
+            a_.deallocate(p_, 1);
+        }
     }
-#     endif
-#     undef N
-#   endif // defined(BOOST_PP_IS_ITERATING)
 
-#endif // include guard
+    A& state() BOOST_NOEXCEPT {
+        return a_;
+    }
 
+    typename A::value_type* get() const BOOST_NOEXCEPT {
+        return boost::to_address(p_);
+    }
+
+    R release(fc_tag<factory_alloc_for_pointee_and_deleter>) {
+        return R(release(), fc_delete<A>(a_), a_);
+    }
+
+    R release(fc_tag<factory_passes_alloc_to_smart_pointer>) {
+        return R(release(), fc_delete<A>(a_));
+    }
+
+private:
+    typedef typename fc_pointer<A>::type pointer;
+
+    pointer release() BOOST_NOEXCEPT {
+        pointer p = p_;
+        p_ = pointer();
+        return p;
+    }
+
+    fc_allocate(const fc_allocate&);
+    fc_allocate& operator=(const fc_allocate&);
+
+    A a_;
+    pointer p_;
+};
+
+} /* detail */
+
+template<class Pointer, class Allocator = void,
+    factory_alloc_propagation Policy = factory_alloc_for_pointee_and_deleter>
+class factory;
+
+template<class Pointer, factory_alloc_propagation Policy>
+class factory<Pointer, void, Policy> {
+public:
+    typedef typename remove_cv<Pointer>::type result_type;
+
+private:
+    typedef typename pointer_traits<result_type>::element_type type;
+
+public:
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+    template<class... Args>
+    result_type operator()(Args&&... args) const {
+        return result_type(new type(std::forward<Args>(args)...));
+    }
+#else
+    result_type operator()() const {
+        return result_type(new type());
+    }
+
+    template<class A0>
+    result_type operator()(A0& a0) const {
+        return result_type(new type(a0));
+    }
+
+    template<class A0, class A1>
+    result_type operator()(A0& a0, A1& a1) const {
+        return result_type(new type(a0, a1));
+    }
+
+    template<class A0, class A1, class A2>
+    result_type operator()(A0& a0, A1& a1, A2& a2) const {
+        return result_type(new type(a0, a1, a2));
+    }
+
+    template<class A0, class A1, class A2, class A3>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
+        return result_type(new type(a0, a1, a2, a3));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
+        return result_type(new type(a0, a1, a2, a3, a4));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
+        A5& a5) const {
+        return result_type(new type(a0, a1, a2, a3, a4, a5));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6) const {
+        return result_type(new type(a0, a1, a2, a3, a4, a5, a6));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7) const {
+        return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8) const {
+        return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7, a8));
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8, class A9>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8, A9& a9) const {
+        return result_type(new type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9));
+    }
+#endif
+};
+
+template<class Pointer, class Allocator, factory_alloc_propagation Policy>
+class factory
+    : empty_value<typename detail::fc_rebind<Allocator,
+        typename pointer_traits<typename
+            remove_cv<Pointer>::type>::element_type>::type> {
+public:
+    typedef typename remove_cv<Pointer>::type result_type;
+
+private:
+    typedef typename pointer_traits<result_type>::element_type type;
+    typedef typename detail::fc_rebind<Allocator, type>::type allocator;
+    typedef empty_value<allocator> base;
+
+public:
+    factory() BOOST_NOEXCEPT
+        : base(empty_init_t()) { }
+
+    explicit factory(const Allocator& a) BOOST_NOEXCEPT
+        : base(empty_init_t(), a) { }
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+    template<class... Args>
+    result_type operator()(Args&&... args) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        detail::fc_construct(s.state(), s.get(), std::forward<Args>(args)...);
+        return s.release(detail::fc_tag<Policy>());
+    }
+#else
+    result_type operator()() const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type();
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0>
+    result_type operator()(A0& a0) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1>
+    result_type operator()(A0& a0, A1& a1) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2>
+    result_type operator()(A0& a0, A1& a1, A2& a2) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
+        A5& a5) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7, a8);
+        return s.release(detail::fc_tag<Policy>());
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8, class A9>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8, A9& a9) const {
+        detail::fc_allocate<result_type, allocator> s(base::get());
+        ::new((void*)s.get()) type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+        return s.release(detail::fc_tag<Policy>());
+    }
+#endif
+};
+
+template<class Pointer, class Allocator, factory_alloc_propagation Policy>
+class factory<Pointer&, Allocator, Policy> { };
+
+} /* boost */
+
+#endif

linx64/include/boost/functional/identity.hpp

@@ -0,0 +1,17 @@
+/*
+Copyright 2021 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#ifndef BOOST_FUNCTIONAL_IDENTITY_HPP
+#define BOOST_FUNCTIONAL_IDENTITY_HPP
+
+/*
+The header file at this path is deprecated;
+use <boost/core/identity.hpp> instead.
+*/
+#include <boost/core/identity.hpp>
+
+#endif

linx64/include/boost/functional/value_factory.hpp

@@ -1,69 +1,106 @@
-/*=============================================================================
-    Copyright (c) 2007 Tobias Schwinger
-  
-    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).
-==============================================================================*/
+/*
+Copyright 2007 Tobias Schwinger
 
-#ifndef BOOST_FUNCTIONAL_VALUE_FACTORY_HPP_INCLUDED
-#   ifndef BOOST_PP_IS_ITERATING
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
 
-#     include <boost/preprocessor/iteration/iterate.hpp>
-#     include <boost/preprocessor/repetition/enum_params.hpp>
-#     include <boost/preprocessor/repetition/enum_binary_params.hpp>
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#ifndef BOOST_FUNCTIONAL_VALUE_FACTORY_HPP
+#define BOOST_FUNCTIONAL_VALUE_FACTORY_HPP
 
-#     include <new>
-#     include <boost/pointee.hpp>
-#     include <boost/get_pointer.hpp>
-#     include <boost/non_type.hpp>
-#     include <boost/type_traits/remove_cv.hpp>
+#include <boost/config.hpp>
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+#include <utility>
+#endif
 
-#     ifndef BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY
-#       define BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY 10
-#     elif BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY < 3
-#       undef  BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY
-#       define BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY 3
-#     endif
+namespace boost {
 
-namespace boost
-{
-    template< typename T >
-    class value_factory;
+template<class  T>
+class value_factory;
 
-    //----- ---- --- -- - -  -   -
+template<class T>
+class value_factory {
+public:
+    typedef T result_type;
 
-    template< typename T >
-    class value_factory
-    {
-      public:
-        typedef T result_type;
-
-        value_factory()
-        { }
-
-#     define BOOST_PP_FILENAME_1 <boost/functional/value_factory.hpp>
-#     define BOOST_PP_ITERATION_LIMITS (0,BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY)
-#     include BOOST_PP_ITERATE()
-    };
-
-    template< typename T > class value_factory<T&>;
-    // forbidden, would create a dangling reference
-}
-#     define BOOST_FUNCTIONAL_VALUE_FACTORY_HPP_INCLUDED
-#   else // defined(BOOST_PP_IS_ITERATING)
-
-#     define N BOOST_PP_ITERATION()
-#     if N > 0
-    template< BOOST_PP_ENUM_PARAMS(N, typename T) >
-#     endif
-    inline result_type operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,T,& a)) const
-    {
-        return result_type(BOOST_PP_ENUM_PARAMS(N,a));
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+    template<class... Args>
+    result_type operator()(Args&&... args) const {
+        return result_type(std::forward<Args>(args)...);
+    }
+#else
+    result_type operator()() const {
+        return result_type();
     }
-#     undef N
 
-#   endif // defined(BOOST_PP_IS_ITERATING)
+    template<class A0>
+    result_type operator()(A0& a0) const {
+        return result_type(a0);
+    }
 
-#endif // include guard
+    template<class A0, class A1>
+    result_type operator()(A0& a0, A1& a1) const {
+        return result_type(a0, a1);
+    }
 
+    template<class A0, class A1, class A2>
+    result_type operator()(A0& a0, A1& a1, A2& a2) const {
+        return result_type(a0, a1, a2);
+    }
+
+    template<class A0, class A1, class A2, class A3>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3) const {
+        return result_type(a0, a1, a2, a3);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4) const {
+        return result_type(a0, a1, a2, a3, a4);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4,
+        A5& a5) const {
+        return result_type(a0, a1, a2, a3, a4, a5);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6) const {
+        return result_type(a0, a1, a2, a3, a4, a5, a6);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7) const {
+        return result_type(a0, a1, a2, a3, a4, a5, a6, a7);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8) const {
+        return result_type(a0, a1, a2, a3, a4, a5, a6, a7, a8);
+    }
+
+    template<class A0, class A1, class A2, class A3, class A4, class A5,
+        class A6, class A7, class A8, class A9>
+    result_type operator()(A0& a0, A1& a1, A2& a2, A3& a3, A4& a4, A5& a5,
+        A6& a6, A7& a7, A8& a8, A9& a9) const {
+        return result_type(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+    }
+#endif
+};
+
+template<class T>
+class value_factory<T&> { };
+
+} /* boost */
+
+#endif