diff --git a/include/boost/container/detail/construct_in_place.hpp b/include/boost/container/detail/construct_in_place.hpp
index 62cb3c3..d824d81 100644
--- a/include/boost/container/detail/construct_in_place.hpp
+++ b/include/boost/container/detail/construct_in_place.hpp
@@ -30,6 +30,8 @@ namespace container {
 
 //In place construction
 
+struct iterator_arg_t{};
+
 template<class Allocator, class T, class InpIt>
 BOOST_CONTAINER_FORCEINLINE void construct_in_place(Allocator &a, T* dest, InpIt source)
 {     boost::container::allocator_traits<Allocator>::construct(a, dest, *source);  }
diff --git a/include/boost/container/detail/destroyers.hpp b/include/boost/container/detail/destroyers.hpp
index ac9aa3b..45bc431 100644
--- a/include/boost/container/detail/destroyers.hpp
+++ b/include/boost/container/detail/destroyers.hpp
@@ -135,7 +135,7 @@ struct null_scoped_array_deallocator
 };
 
 template <class Allocator>
-struct scoped_destroy_deallocator
+struct scoped_node_destroy_deallocator
 {
    typedef boost::container::allocator_traits<Allocator> AllocTraits;
    typedef typename AllocTraits::pointer    pointer;
@@ -143,13 +143,13 @@ struct scoped_destroy_deallocator
       boost::container::dtl::
          version<Allocator>::value>                          alloc_version;
 
-   scoped_destroy_deallocator(pointer p, Allocator& a)
+   scoped_node_destroy_deallocator(pointer p, Allocator& a)
       : m_ptr(p), m_alloc(a) {}
 
-   ~scoped_destroy_deallocator()
+   ~scoped_node_destroy_deallocator()
    {
       if(m_ptr){
-         AllocTraits::destroy(m_alloc, boost::movelib::to_raw_pointer(m_ptr));
+         boost::movelib::to_raw_pointer(m_ptr)->destructor(m_alloc);
          priv_deallocate(m_ptr, alloc_version());
       }
    }
@@ -355,7 +355,7 @@ class value_destructor
 };
 
 template <class Allocator>
-class allocator_destroyer
+class allocator_node_destroyer
 {
    typedef boost::container::allocator_traits<Allocator> AllocTraits;
    typedef typename AllocTraits::value_type value_type;
@@ -375,19 +375,51 @@ class allocator_destroyer
    {  a_.deallocate_one(p); }
 
    public:
-   BOOST_CONTAINER_FORCEINLINE explicit allocator_destroyer(Allocator &a)
+   BOOST_CONTAINER_FORCEINLINE explicit allocator_node_destroyer(Allocator &a)
       : a_(a)
    {}
 
    BOOST_CONTAINER_FORCEINLINE void operator()(const pointer &p)
    {
-      AllocTraits::destroy(a_, boost::movelib::to_raw_pointer(p));
+      boost::movelib::to_raw_pointer(p)->destructor(a_);
       this->priv_deallocate(p, alloc_version());
    }
 };
 
+template<class Allocator>
+class scoped_node_destructor
+{
+   typedef boost::container::allocator_traits<Allocator> AllocTraits;
+   public:
+   typedef typename Allocator::value_type value_type;
+   BOOST_CONTAINER_FORCEINLINE scoped_node_destructor(Allocator &a, value_type *pv)
+      : pv_(pv), a_(a)
+   {}
+
+   BOOST_CONTAINER_FORCEINLINE ~scoped_node_destructor()
+   {
+      if(pv_){
+         pv_->destructor(a_);
+      }
+   }
+
+   BOOST_CONTAINER_FORCEINLINE void release()
+   {  pv_ = 0; }
+
+
+   BOOST_CONTAINER_FORCEINLINE void set(value_type *ptr) { pv_ = ptr; }
+
+   BOOST_CONTAINER_FORCEINLINE value_type *get() const { return pv_; }
+
+   private:
+   value_type *pv_;
+   Allocator &a_;
+};
+
+
+
 template <class Allocator>
-class allocator_destroyer_and_chain_builder
+class allocator_node_destroyer_and_chain_builder
 {
    typedef allocator_traits<Allocator> allocator_traits_type;
    typedef typename allocator_traits_type::value_type value_type;
@@ -397,13 +429,13 @@ class allocator_destroyer_and_chain_builder
    multiallocation_chain &c_;
 
    public:
-   BOOST_CONTAINER_FORCEINLINE allocator_destroyer_and_chain_builder(Allocator &a, multiallocation_chain &c)
+   BOOST_CONTAINER_FORCEINLINE allocator_node_destroyer_and_chain_builder(Allocator &a, multiallocation_chain &c)
       :  a_(a), c_(c)
    {}
 
    BOOST_CONTAINER_FORCEINLINE void operator()(const typename Allocator::pointer &p)
    {
-      allocator_traits<Allocator>::destroy(a_, boost::movelib::to_raw_pointer(p));
+      boost::movelib::to_raw_pointer(p)->destructor(a_);
       c_.push_back(p);
    }
 };
@@ -414,7 +446,7 @@ class allocator_multialloc_chain_node_deallocator
    typedef allocator_traits<Allocator> allocator_traits_type;
    typedef typename allocator_traits_type::value_type value_type;
    typedef typename Allocator::multiallocation_chain    multiallocation_chain;
-   typedef allocator_destroyer_and_chain_builder<Allocator> chain_builder;
+   typedef allocator_node_destroyer_and_chain_builder<Allocator> chain_builder;
 
    Allocator & a_;
    multiallocation_chain c_;
diff --git a/include/boost/container/detail/dispatch_uses_allocator.hpp b/include/boost/container/detail/dispatch_uses_allocator.hpp
index 24f0316..800b1b3 100644
--- a/include/boost/container/detail/dispatch_uses_allocator.hpp
+++ b/include/boost/container/detail/dispatch_uses_allocator.hpp
@@ -23,11 +23,13 @@
 
 #include <boost/container/detail/addressof.hpp>
 #include <boost/container/detail/mpl.hpp>
-#include <boost/container/detail/pair.hpp>
+#include <boost/container/detail/is_pair.hpp>
 #include <boost/container/detail/type_traits.hpp>
 
 #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 #include <boost/move/detail/fwd_macros.hpp>
+#else
+#include <boost/container/detail/variadic_templates_tools.hpp>
 #endif
 #include <boost/move/utility_core.hpp>
 
diff --git a/include/boost/container/detail/is_pair.hpp b/include/boost/container/detail/is_pair.hpp
new file mode 100644
index 0000000..e208a5c
--- /dev/null
+++ b/include/boost/container/detail/is_pair.hpp
@@ -0,0 +1,83 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2013.
+//
+// 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)
+//
+// See http://www.boost.org/libs/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_IS_PAIR_HPP
+#define BOOST_CONTAINER_CONTAINER_DETAIL_IS_PAIR_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/container/detail/config_begin.hpp>
+#include <boost/container/detail/workaround.hpp>
+#include <boost/container/detail/std_fwd.hpp>
+
+namespace boost {
+namespace tuples {
+
+struct null_type;
+
+template <
+  class T0, class T1, class T2,
+  class T3, class T4, class T5,
+  class T6, class T7, class T8,
+  class T9>
+class tuple;
+
+}  //namespace tuples {
+}  //namespace boost {
+
+namespace boost {
+namespace container {
+
+struct try_emplace_t{};
+
+namespace dtl {
+
+template <class T1, class T2>
+struct pair;
+
+template <class T>
+struct is_pair
+{
+   static const bool value = false;
+};
+
+template <class T1, class T2>
+struct is_pair< pair<T1, T2> >
+{
+   static const bool value = true;
+};
+
+template <class T1, class T2>
+struct is_pair< std::pair<T1, T2> >
+{
+   static const bool value = true;
+};
+
+template <class T>
+struct is_not_pair
+{
+   static const bool value = !is_pair<T>::value;
+};
+
+}  //namespace dtl {
+}  //namespace container {
+}  //namespace boost {
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif   //#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_IS_PAIR_HPP
diff --git a/include/boost/container/detail/node_alloc_holder.hpp b/include/boost/container/detail/node_alloc_holder.hpp
index 852c463..bb2cdc9 100644
--- a/include/boost/container/detail/node_alloc_holder.hpp
+++ b/include/boost/container/detail/node_alloc_holder.hpp
@@ -36,6 +36,7 @@
 #include <boost/move/detail/to_raw_pointer.hpp>
 #include <boost/container/detail/type_traits.hpp>
 #include <boost/container/detail/version_type.hpp>
+#include <boost/container/detail/is_pair.hpp>
 // intrusive
 #include <boost/intrusive/detail/mpl.hpp>
 #include <boost/intrusive/options.hpp>
@@ -50,6 +51,140 @@
 
 namespace boost {
 namespace container {
+
+//This trait is used to type-pun std::pair because in C++03
+//compilers std::pair is useless for C++11 features
+template<class T, bool = dtl::is_pair<T>::value >
+struct node_internal_data_type
+{
+   typedef T type;
+};
+
+template<class T>
+struct node_internal_data_type< T, true>
+{
+   typedef dtl::pair< typename dtl::remove_const<typename T::first_type>::type
+                     , typename T::second_type>
+                     type;
+};
+
+template <class T, class HookDefiner>
+struct base_node
+   :  public HookDefiner::type
+{
+   public:
+   typedef T value_type;
+   typedef typename node_internal_data_type<T>::type internal_type;
+   typedef typename HookDefiner::type hook_type;
+
+   typedef typename dtl::aligned_storage<sizeof(T), dtl::alignment_of<T>::value>::type storage_t;
+   storage_t m_storage;
+
+   #if defined(BOOST_GCC) && (BOOST_GCC >= 40600) && (BOOST_GCC < 80000)
+      #pragma GCC diagnostic push
+      #pragma GCC diagnostic ignored "-Wstrict-aliasing"
+      #define BOOST_CONTAINER_DISABLE_ALIASING_WARNING
+   #  endif
+   public:
+
+   #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+   template<class Alloc, class ...Args>
+   explicit base_node(Alloc &a, Args &&...args)
+      : hook_type()
+   {
+      ::boost::container::allocator_traits<Alloc>::construct
+         (a, &this->get_real_data(), ::boost::forward<Args>(args)...);
+   }
+
+   #else //defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+   #define BOOST_CONTAINER_BASE_NODE_CONSTRUCT_IMPL(N) \
+   template< class Alloc BOOST_MOVE_I##N BOOST_MOVE_CLASS##N > \
+   explicit base_node(Alloc &a BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
+      : hook_type()\
+   {\
+      ::boost::container::allocator_traits<Alloc>::construct\
+         (a, &this->get_real_data() BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\
+   }\
+   //
+   BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_BASE_NODE_CONSTRUCT_IMPL)
+   #undef BOOST_CONTAINER_BASE_NODE_CONSTRUCT_IMPL
+
+   #endif   // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+   template<class Alloc, class It>
+   explicit base_node(iterator_arg_t, Alloc &a, It it)
+      : hook_type()
+   {
+      ::boost::container::construct_in_place(a, &this->get_real_data(), it);
+   }
+
+   BOOST_CONTAINER_FORCEINLINE T &get_data()
+   {  return *move_detail::force_ptr<T*>(this->m_storage.data);   }
+
+   BOOST_CONTAINER_FORCEINLINE const T &get_data() const
+   {  return *move_detail::force_ptr<const T*>(this->m_storage.data);  }
+
+   BOOST_CONTAINER_FORCEINLINE internal_type &get_real_data()
+   {  return *move_detail::force_ptr<internal_type*>(this->m_storage.data);   }
+
+   BOOST_CONTAINER_FORCEINLINE const internal_type &get_real_data() const
+   {  return *move_detail::force_ptr<const internal_type*>(this->m_storage.data);  }
+
+   #if defined(BOOST_CONTAINER_DISABLE_ALIASING_WARNING)
+      #pragma GCC diagnostic pop
+      #undef BOOST_CONTAINER_DISABLE_ALIASING_WARNING
+   #  endif
+
+   template<class Alloc>
+   void destructor(Alloc &a) BOOST_NOEXCEPT
+   {
+      allocator_traits<Alloc>::destroy
+         (a, &this->get_real_data());
+      this->~base_node();
+   }
+
+   template<class Pair>
+   BOOST_CONTAINER_FORCEINLINE
+   typename dtl::enable_if< dtl::is_pair<Pair>, void >::type
+      do_assign(const Pair &p)
+   {
+      typedef typename Pair::first_type first_type;
+      const_cast<typename dtl::remove_const<first_type>::type &>(this->get_real_data().first) = p.first;
+      this->get_real_data().second  = p.second;
+   }
+
+   template<class V>
+   BOOST_CONTAINER_FORCEINLINE 
+   typename dtl::disable_if< dtl::is_pair<V>, void >::type
+      do_assign(const V &v)
+   {  this->get_real_data() = v; }
+
+   template<class Pair>
+   BOOST_CONTAINER_FORCEINLINE 
+   typename dtl::enable_if< dtl::is_pair<Pair>, void >::type
+      do_move_assign(Pair &p)
+   {
+      typedef typename Pair::first_type first_type;
+      const_cast<first_type&>(this->get_real_data().first) = ::boost::move(p.first);
+      this->get_real_data().second = ::boost::move(p.second);
+   }
+
+   template<class V>
+   BOOST_CONTAINER_FORCEINLINE 
+   typename dtl::disable_if< dtl::is_pair<V>, void >::type
+      do_move_assign(V &v)
+   {  this->get_real_data() = ::boost::move(v); }
+
+   private:
+   base_node();
+
+   BOOST_CONTAINER_FORCEINLINE ~base_node()
+   { }
+};
+
+
 namespace dtl {
 
 BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(key_compare)
@@ -111,7 +246,7 @@ struct node_alloc_holder
          version<NodeAlloc>::value>                               alloc_version;
    typedef typename ICont::iterator                               icont_iterator;
    typedef typename ICont::const_iterator                         icont_citerator;
-   typedef allocator_destroyer<NodeAlloc>                         Destroyer;
+   typedef allocator_node_destroyer<NodeAlloc>                         Destroyer;
    typedef allocator_traits<NodeAlloc>                            NodeAllocTraits;
    typedef allocator_version_traits<NodeAlloc>                    AllocVersionTraits;
 
@@ -176,7 +311,7 @@ struct node_alloc_holder
    {}
 
    explicit node_alloc_holder(BOOST_RV_REF(node_alloc_holder) x)
-      : NodeAlloc(boost::move(x.node_alloc()))
+      : NodeAlloc(boost::move(BOOST_MOVE_TO_LV(x).node_alloc()))
    {  this->icont().swap(x.icont());  }
 
    explicit node_alloc_holder(const val_compare &c)
@@ -185,15 +320,15 @@ struct node_alloc_holder
 
    //helpers for move assignments
    explicit node_alloc_holder(BOOST_RV_REF(node_alloc_holder) x, const val_compare &c)
-      : NodeAlloc(boost::move(x.node_alloc())), m_icont(typename ICont::key_compare(c))
+      : NodeAlloc(boost::move(BOOST_MOVE_TO_LV(x).node_alloc())), m_icont(typename ICont::key_compare(c))
    {  this->icont().swap(x.icont());  }
 
    explicit node_alloc_holder(BOOST_RV_REF(node_alloc_holder) x, const val_hasher &hf, const val_equal &eql)
-      : NodeAlloc(boost::move(x.node_alloc()))
+      : NodeAlloc(boost::move(BOOST_MOVE_TO_LV(x).node_alloc()))
       , m_icont( typename ICont::bucket_traits()
                , typename ICont::hasher(hf)
                , typename ICont::key_equal(eql))
-   {  this->icont().swap(x.icont());   }
+   {  this->icont().swap(BOOST_MOVE_TO_LV(x).icont());   }
 
    void copy_assign_alloc(const node_alloc_holder &x)
    {
@@ -227,18 +362,11 @@ struct node_alloc_holder
    NodePtr create_node(Args &&...args)
    {
       NodePtr p = this->allocate_one();
-      BOOST_TRY{
-         ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t()) Node;
-         allocator_traits<NodeAlloc>::construct
-            (this->node_alloc()
-            , p->get_real_data_ptr(), boost::forward<Args>(args)...);
-      }
-      BOOST_CATCH(...) {
-         p->destroy_header();
-         this->node_alloc().deallocate(p, 1);
-         BOOST_RETHROW
-      }
-      BOOST_CATCH_END
+      NodeAlloc &nalloc = this->node_alloc();
+      Deallocator node_deallocator(p, nalloc);
+      ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t())
+         Node(nalloc, boost::forward<Args>(args)...);
+      node_deallocator.release();
       return (p);
    }
 
@@ -249,19 +377,11 @@ struct node_alloc_holder
    NodePtr create_node(BOOST_MOVE_UREF##N)\
    {\
       NodePtr p = this->allocate_one();\
-      BOOST_TRY{\
-         ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t()) Node;\
-         allocator_traits<NodeAlloc>::construct\
-            ( this->node_alloc()\
-            , p->get_real_data_ptr()\
-             BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\
-      }\
-      BOOST_CATCH(...) {\
-         p->destroy_header();\
-         this->node_alloc().deallocate(p, 1);\
-         BOOST_RETHROW\
-      }\
-      BOOST_CATCH_END\
+      NodeAlloc &nalloc = this->node_alloc();\
+      Deallocator node_deallocator(p, nalloc);\
+      ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t())\
+         Node(nalloc BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\
+      node_deallocator.release();\
       return (p);\
    }\
    //
@@ -274,16 +394,11 @@ struct node_alloc_holder
    NodePtr create_node_from_it(const It &it)
    {
       NodePtr p = this->allocate_one();
-      BOOST_TRY{
-         ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t()) Node;
-         ::boost::container::construct_in_place(this->node_alloc(), p->get_real_data_ptr(), it);
-      }
-      BOOST_CATCH(...) {
-         p->destroy_header();
-         this->node_alloc().deallocate(p, 1);
-         BOOST_RETHROW
-      }
-      BOOST_CATCH_END
+      NodeAlloc &nalloc = this->node_alloc();
+      Deallocator node_deallocator(p, nalloc);
+      ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t())
+         Node(iterator_arg_t(), nalloc, it);
+      node_deallocator.release();
       return (p);
    }
 
@@ -316,7 +431,7 @@ struct node_alloc_holder
 
    void destroy_node(const NodePtr &nodep)
    {
-      allocator_traits<NodeAlloc>::destroy(this->node_alloc(), boost::movelib::to_raw_pointer(nodep));
+      boost::movelib::to_raw_pointer(nodep)->destructor(this->node_alloc());
       this->deallocate_one(nodep);
    }
 
@@ -346,28 +461,25 @@ struct node_alloc_holder
          Node *p = 0;
             BOOST_TRY{
             Deallocator node_deallocator(NodePtr(), nalloc);
-            dtl::scoped_destructor<NodeAlloc> sdestructor(nalloc, 0);
+            dtl::scoped_node_destructor<NodeAlloc> sdestructor(nalloc, 0);
             while(n){
                --n;
                p = boost::movelib::iterator_to_raw_pointer(itbeg);
                ++itbeg; //Increment iterator before overwriting pointed memory
                //This does not throw
-               p = ::new(p, boost_container_new_t()) Node;
-               node_deallocator.set(p);
-               //This can throw
-               boost::container::construct_in_place(nalloc, p->get_real_data_ptr(), beg);
+               ::new(boost::movelib::iterator_to_raw_pointer(p), boost_container_new_t())
+                  Node(iterator_arg_t(), nalloc, beg);
                sdestructor.set(p);
                ++beg;
                //This can throw in some containers (predicate might throw).
                //(sdestructor will destruct the node and node_deallocator will deallocate it in case of exception)
                inserter(*p);
-               sdestructor.set(0);
+               sdestructor.release();
             }
             sdestructor.release();
             node_deallocator.release();
          }
          BOOST_CATCH(...){
-            p->destroy_header();
             chain.incorporate_after(chain.last(), &*itbeg, &*itlast, n);
             node_allocator_version_traits_type::deallocate_individual(this->node_alloc(), chain);
             BOOST_RETHROW
@@ -382,7 +494,7 @@ struct node_alloc_holder
    void clear(version_2)
    {
       typename NodeAlloc::multiallocation_chain chain;
-      allocator_destroyer_and_chain_builder<NodeAlloc> builder(this->node_alloc(), chain);
+      allocator_node_destroyer_and_chain_builder<NodeAlloc> builder(this->node_alloc(), chain);
       this->icont().clear_and_dispose(builder);
       //BOOST_STATIC_ASSERT((::boost::has_move_emulation_enabled<typename NodeAlloc::multiallocation_chain>::value == true));
       if(!chain.empty())
@@ -396,7 +508,7 @@ struct node_alloc_holder
    {
       NodeAlloc & nalloc = this->node_alloc();
       typename NodeAlloc::multiallocation_chain chain;
-      allocator_destroyer_and_chain_builder<NodeAlloc> chain_builder(nalloc, chain);
+      allocator_node_destroyer_and_chain_builder<NodeAlloc> chain_builder(nalloc, chain);
       icont_iterator ret_it = this->icont().erase_and_dispose(first, last, chain_builder);
       nalloc.deallocate_individual(chain);
       return ret_it;
diff --git a/include/boost/container/detail/pair.hpp b/include/boost/container/detail/pair.hpp
index 449e093..89b7876 100644
--- a/include/boost/container/detail/pair.hpp
+++ b/include/boost/container/detail/pair.hpp
@@ -22,6 +22,7 @@
 #endif
 
 #include <boost/container/detail/config_begin.hpp>
+#include <boost/container/container_fwd.hpp>
 #include <boost/container/detail/workaround.hpp>
 
 #include <boost/static_assert.hpp>
@@ -29,6 +30,7 @@
 #include <boost/container/detail/type_traits.hpp>
 #include <boost/container/detail/mpl.hpp>
 #include <boost/container/detail/std_fwd.hpp>
+#include <boost/container/detail/is_pair.hpp>
 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 #  include <boost/container/detail/variadic_templates_tools.hpp>
 #endif
@@ -38,21 +40,6 @@
 #include <boost/move/utility_core.hpp>
 #include <boost/move/detail/fwd_macros.hpp>
 
-namespace boost {
-namespace tuples {
-
-struct null_type;
-
-template <
-  class T0, class T1, class T2,
-  class T3, class T4, class T5,
-  class T6, class T7, class T8,
-  class T9>
-class tuple;
-
-}  //namespace tuples {
-}  //namespace boost {
-
 namespace boost {
 namespace container {
 namespace pair_impl {
@@ -116,10 +103,6 @@ namespace container {
    ::std::piecewise_construct_t *std_piecewise_construct_holder<Dummy>::dummy =
       reinterpret_cast< ::std::piecewise_construct_t *>(0x01234);  //Avoid sanitizer errors on references to null pointers
 
-typedef const std::piecewise_construct_t & piecewise_construct_t;
-
-struct try_emplace_t{};
-
 #else
 
 //! The piecewise_construct_t struct is an empty structure type used as a unique type to
@@ -143,45 +126,6 @@ struct piecewise_construct_use
    {  (void)&::boost::container::piecewise_construct;   }
 };
 
-template <class T1, class T2>
-struct pair;
-
-template <class T>
-struct is_pair
-{
-   static const bool value = false;
-};
-
-template <class T1, class T2>
-struct is_pair< pair<T1, T2> >
-{
-   static const bool value = true;
-};
-
-template <class T1, class T2>
-struct is_pair< std::pair<T1, T2> >
-{
-   static const bool value = true;
-};
-
-template <class T>
-struct is_not_pair
-{
-   static const bool value = !is_pair<T>::value;
-};
-
-template <class T>
-struct is_std_pair
-{
-   static const bool value = false;
-};
-
-template <class T1, class T2>
-struct is_std_pair< std::pair<T1, T2> >
-{
-   static const bool value = true;
-};
-
 struct pair_nat;
 
 template<typename T, typename U, typename V>
diff --git a/include/boost/container/detail/tree.hpp b/include/boost/container/detail/tree.hpp
index ac72e57..051eb10 100644
--- a/include/boost/container/detail/tree.hpp
+++ b/include/boost/container/detail/tree.hpp
@@ -121,104 +121,9 @@ struct tree_internal_data_type< std::pair<T1, T2> >
    typedef pair<typename boost::move_detail::remove_const<T1>::type, T2> type;
 };
 
-//The node to be store in the tree
 template <class T, class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
-struct tree_node
-   :  public intrusive_tree_hook<VoidPointer, tree_type_value, OptimizeSize>::type
+struct iiterator_node_value_type< base_node<T, intrusive_tree_hook<VoidPointer, tree_type_value, OptimizeSize> > >
 {
-   public:
-   typedef typename intrusive_tree_hook
-      <VoidPointer, tree_type_value, OptimizeSize>::type hook_type;
-   typedef T value_type;
-   typedef typename tree_internal_data_type<T>::type     internal_type;
-
-   typedef tree_node< T, VoidPointer
-                    , tree_type_value, OptimizeSize>     node_t;
-
-   typedef typename boost::container::dtl::aligned_storage
-      <sizeof(T), boost::container::dtl::alignment_of<T>::value>::type storage_t;
-   storage_t m_storage;
-
-   #if defined(BOOST_GCC) && (BOOST_GCC >= 40600) && (BOOST_GCC < 80000)
-      #pragma GCC diagnostic push
-      #pragma GCC diagnostic ignored "-Wstrict-aliasing"
-      #define BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE T &get_data()
-   {  return *move_detail::force_ptr<T*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const T &get_data() const
-   {  return *move_detail::force_ptr<const T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE T *get_data_ptr()
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const T *get_data_ptr() const
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type &get_real_data()
-   {  return *move_detail::force_ptr<internal_type*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type &get_real_data() const
-   {  return *move_detail::force_ptr<const internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type *get_real_data_ptr()
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type *get_real_data_ptr() const
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE ~tree_node()
-   {  move_detail::force_ptr<internal_type*>(this->m_storage.data)->~internal_type();  }
-
-   #if defined(BOOST_CONTAINER_DISABLE_ALIASING_WARNING)
-      #pragma GCC diagnostic pop
-      #undef BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE void destroy_header()
-   {  static_cast<hook_type*>(this)->~hook_type();  }
-
-   template<class T1, class T2>
-   BOOST_CONTAINER_FORCEINLINE void do_assign(const std::pair<const T1, T2> &p)
-   {
-      const_cast<T1&>(this->get_real_data().first) = p.first;
-      this->get_real_data().second  = p.second;
-   }
-
-   template<class T1, class T2>
-   BOOST_CONTAINER_FORCEINLINE void do_assign(const pair<const T1, T2> &p)
-   {
-      const_cast<T1&>(this->get_real_data().first) = p.first;
-      this->get_real_data().second  = p.second;
-   }
-
-   template<class V>
-   BOOST_CONTAINER_FORCEINLINE void do_assign(const V &v)
-   {  this->get_real_data() = v; }
-
-   template<class T1, class T2>
-   BOOST_CONTAINER_FORCEINLINE void do_move_assign(std::pair<const T1, T2> &p)
-   {
-      const_cast<T1&>(this->get_real_data().first) = ::boost::move(p.first);
-      this->get_real_data().second = ::boost::move(p.second);
-   }
-
-   template<class T1, class T2>
-   BOOST_CONTAINER_FORCEINLINE void do_move_assign(pair<const T1, T2> &p)
-   {
-      const_cast<T1&>(this->get_real_data().first) = ::boost::move(p.first);
-      this->get_real_data().second  = ::boost::move(p.second);
-   }
-
-   template<class V>
-   BOOST_CONTAINER_FORCEINLINE void do_move_assign(V &v)
-   {  this->get_real_data() = ::boost::move(v); }
-};
-
-template <class T, class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
-struct iiterator_node_value_type< tree_node<T, VoidPointer, tree_type_value, OptimizeSize> > {
   typedef T type;
 };
 
@@ -321,9 +226,8 @@ struct intrusive_tree_type
       allocator_traits<Allocator>::void_pointer            void_pointer;
    typedef typename boost::container::
       allocator_traits<Allocator>::size_type               size_type;
-   typedef typename dtl::tree_node
-         < value_type, void_pointer
-         , tree_type_value, OptimizeSize>                   node_t;
+   typedef base_node<value_type, intrusive_tree_hook
+      <void_pointer, tree_type_value, OptimizeSize> >        node_t;
    typedef value_to_node_compare
       <node_t, ValueCompare>                                node_compare_type;
    //Deducing the hook type from node_t (e.g. node_t::hook_type) would
@@ -388,10 +292,10 @@ class RecyclingCloner
       :  m_holder(holder), m_icont(itree)
    {}
 
-   BOOST_CONTAINER_FORCEINLINE static void do_assign(node_ptr_type &p, node_t &other, bool_<true>)
+   BOOST_CONTAINER_FORCEINLINE static void do_assign(node_ptr_type p, node_t &other, bool_<true>)
    {  p->do_move_assign(other.get_real_data());   }
 
-   BOOST_CONTAINER_FORCEINLINE static void do_assign(node_ptr_type &p, const node_t &other, bool_<false>)
+   BOOST_CONTAINER_FORCEINLINE static void do_assign(node_ptr_type p, const node_t &other, bool_<false>)
    {  p->do_assign(other.get_real_data());   }
 
    node_ptr_type operator()
@@ -440,7 +344,7 @@ struct key_node_compare
 
    template <class T, class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
    BOOST_CONTAINER_FORCEINLINE static const key_type &
-      key_from(const tree_node<T, VoidPointer, tree_type_value, OptimizeSize> &n)
+      key_from(const base_node<T, intrusive_tree_hook<VoidPointer, tree_type_value, OptimizeSize> > &n)
    {
       return key_of_value()(n.get_data());
    }
@@ -505,7 +409,7 @@ struct real_key_of_value<std::pair<T1, T2>, int>
 };
 
 template<class T1, class T2>
-struct real_key_of_value<boost::container::pair<T1, T2>, int>
+struct real_key_of_value<boost::container::dtl::pair<T1, T2>, int>
 {
    typedef dtl::select1st<T1> type;
 };
@@ -552,7 +456,7 @@ class tree
    typedef typename AllocHolder::Node                       Node;
    typedef typename Icont::iterator                         iiterator;
    typedef typename Icont::const_iterator                   iconst_iterator;
-   typedef dtl::allocator_destroyer<NodeAlloc> Destroyer;
+   typedef dtl::allocator_node_destroyer<NodeAlloc> Destroyer;
    typedef typename AllocHolder::alloc_version              alloc_version;
    typedef intrusive_tree_proxy<options_type::tree_type>    intrusive_tree_proxy_t;
 
@@ -1000,7 +904,7 @@ class tree
       (BOOST_FWD_REF(MovableConvertible) v, insert_commit_data &data)
    {
       NodePtr tmp = AllocHolder::create_node(boost::forward<MovableConvertible>(v));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iterator ret(this->icont().insert_unique_commit(*tmp, data));
       destroy_deallocator.release();
       return ret;
@@ -1038,7 +942,7 @@ class tree
       (BOOST_FWD_REF(KeyConvertible) key, BOOST_FWD_REF(M) obj, insert_commit_data &data)
    {
       NodePtr tmp = AllocHolder::create_node(boost::forward<KeyConvertible>(key), boost::forward<M>(obj));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iiterator ret(this->icont().insert_unique_commit(*tmp, data));
       destroy_deallocator.release();
       return ret;
@@ -1065,7 +969,7 @@ class tree
    {
       value_type &v = p->get_data();
       insert_commit_data data;
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(p, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(p, this->node_alloc());
       std::pair<iterator,bool> ret =
          this->insert_unique_check(key_of_value_t()(v), data);
       if(!ret.second){
@@ -1109,7 +1013,7 @@ class tree
    iterator emplace_equal(BOOST_FWD_REF(Args)... args)
    {
       NodePtr tmp(AllocHolder::create_node(boost::forward<Args>(args)...));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));
       destroy_deallocator.release();
       return ret;
@@ -1120,7 +1024,7 @@ class tree
    {
       BOOST_ASSERT((priv_is_linked)(hint));
       NodePtr tmp(AllocHolder::create_node(boost::forward<Args>(args)...));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iterator ret(this->icont().insert_equal(hint.get(), *tmp));
       destroy_deallocator.release();
       return ret;
@@ -1157,7 +1061,7 @@ class tree
    iterator emplace_equal(BOOST_MOVE_UREF##N)\
    {\
       NodePtr tmp(AllocHolder::create_node(BOOST_MOVE_FWD##N));\
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());\
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());\
       iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));\
       destroy_deallocator.release();\
       return ret;\
@@ -1168,7 +1072,7 @@ class tree
    {\
       BOOST_ASSERT((priv_is_linked)(hint));\
       NodePtr tmp(AllocHolder::create_node(BOOST_MOVE_FWD##N));\
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());\
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());\
       iterator ret(this->icont().insert_equal(hint.get(), *tmp));\
       destroy_deallocator.release();\
       return ret;\
@@ -1208,7 +1112,7 @@ class tree
    iterator insert_equal_convertible(BOOST_FWD_REF(MovableConvertible) v)
    {
       NodePtr tmp(AllocHolder::create_node(boost::forward<MovableConvertible>(v)));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));
       destroy_deallocator.release();
       return ret;
@@ -1219,7 +1123,7 @@ class tree
    {
       BOOST_ASSERT((priv_is_linked)(hint));
       NodePtr tmp(AllocHolder::create_node(boost::forward<MovableConvertible>(v)));
-      scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
+      scoped_node_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
       iterator ret(this->icont().insert_equal(hint.get(), *tmp));
       destroy_deallocator.release();
       return ret;
diff --git a/include/boost/container/list.hpp b/include/boost/container/list.hpp
index cb680a6..88fa4c3 100644
--- a/include/boost/container/list.hpp
+++ b/include/boost/container/list.hpp
@@ -69,61 +69,8 @@ struct list_hook
 };
 
 template <class T, class VoidPointer>
-struct list_node
-   :  public list_hook<VoidPointer>::type
+struct iiterator_node_value_type< base_node<T, list_hook<VoidPointer> > >
 {
-   public:
-   typedef T value_type;
-   typedef T internal_type;
-   typedef typename list_hook<VoidPointer>::type hook_type;
-
-   typedef typename dtl::aligned_storage<sizeof(T), dtl::alignment_of<T>::value>::type storage_t;
-   storage_t m_storage;
-
-   #if defined(BOOST_GCC) && (BOOST_GCC >= 40600) && (BOOST_GCC < 80000)
-      #pragma GCC diagnostic push
-      #pragma GCC diagnostic ignored "-Wstrict-aliasing"
-      #define BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE T &get_data()
-   {  return *move_detail::force_ptr<T*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const T &get_data() const
-   {  return *move_detail::force_ptr<const T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE T *get_data_ptr()
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const T *get_data_ptr() const
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type &get_real_data()
-   {  return *move_detail::force_ptr<internal_type*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type &get_real_data() const
-   {  return *move_detail::force_ptr<const internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type *get_real_data_ptr()
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type *get_real_data_ptr() const
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE ~list_node()
-   {  move_detail::force_ptr<T*>(this->m_storage.data)->~T();  }
-
-   #if defined(BOOST_CONTAINER_DISABLE_ALIASING_WARNING)
-      #pragma GCC diagnostic pop
-      #undef BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE void destroy_header()
-   {  static_cast<hook_type*>(this)->~hook_type();  }
-};
-
-template <class T, class VoidPointer>
-struct iiterator_node_value_type< list_node<T,VoidPointer> > {
   typedef T type;
 };
 
@@ -136,8 +83,7 @@ struct intrusive_list_type
       <typename allocator_traits_type::pointer>::template
          rebind_pointer<void>::type
             void_pointer;
-   typedef typename dtl::list_node
-         <value_type, void_pointer>             node_type;
+   typedef base_node<value_type, list_hook<void_pointer> > node_type;
    typedef typename dtl::bi::make_list
       < node_type
       , dtl::bi::base_hook<typename list_hook<void_pointer>::type>
@@ -184,7 +130,7 @@ class list
    typedef typename AllocHolder::NodeAlloc                        NodeAlloc;
    typedef typename AllocHolder::ValAlloc                         ValAlloc;
    typedef typename AllocHolder::Node                             Node;
-   typedef dtl::allocator_destroyer<NodeAlloc>                    Destroyer;
+   typedef dtl::allocator_node_destroyer<NodeAlloc>                    Destroyer;
    typedef typename AllocHolder::alloc_version                    alloc_version;
    typedef boost::container::allocator_traits<ValueAllocator>     allocator_traits_type;
    typedef boost::container::equal_to_value
@@ -1495,17 +1441,13 @@ class list
       return iterator(this->icont().insert(p.get(), *tmp));
    }
 
-   void priv_push_back (const T &x)
-   {  this->insert(this->cend(), x);    }
+   template<class U>
+   void priv_push_back(BOOST_FWD_REF(U) x)
+   {  this->icont().push_back(*this->create_node(::boost::forward<U>(x))); }
 
-   void priv_push_back (BOOST_RV_REF(T) x)
-   {  this->insert(this->cend(), boost::move(x));    }
-
-   void priv_push_front (const T &x)
-   {  this->insert(this->cbegin(), x);  }
-
-   void priv_push_front (BOOST_RV_REF(T) x)
-   {  this->insert(this->cbegin(), boost::move(x));  }
+   template<class U>
+   void priv_push_front(BOOST_FWD_REF(U) x)
+   {  this->icont().push_front(*this->create_node(::boost::forward<U>(x))); }
 
    class insertion_functor;
    friend class insertion_functor;
diff --git a/include/boost/container/node_handle.hpp b/include/boost/container/node_handle.hpp
index 9a39112..8032711 100644
--- a/include/boost/container/node_handle.hpp
+++ b/include/boost/container/node_handle.hpp
@@ -123,7 +123,7 @@ class node_handle
 
    void destroy_deallocate_node()
    {
-      nator_traits::destroy(this->node_alloc(), boost::movelib::to_raw_pointer(m_ptr));
+      boost::movelib::to_raw_pointer(m_ptr)->destructor(this->node_alloc());
       nator_traits::deallocate(this->node_alloc(), m_ptr, 1u);
    }
 
diff --git a/include/boost/container/slist.hpp b/include/boost/container/slist.hpp
index 9e92de1..1adbfba 100644
--- a/include/boost/container/slist.hpp
+++ b/include/boost/container/slist.hpp
@@ -72,64 +72,9 @@ struct slist_hook
       <dtl::bi::void_pointer<VoidPointer>, dtl::bi::link_mode<dtl::bi::normal_link> >::type type;
 };
 
-
 template <class T, class VoidPointer>
-struct slist_node
-   :  public slist_hook<VoidPointer>::type
+struct iiterator_node_value_type< base_node<T, slist_hook<VoidPointer> > >
 {
-   public:
-   typedef T value_type;
-   typedef T internal_type;
-   typedef typename slist_hook<VoidPointer>::type hook_type;
-
-   typedef typename dtl::aligned_storage<sizeof(T), dtl::alignment_of<T>::value>::type storage_t;
-   storage_t m_storage;
-
-   #if defined(BOOST_GCC) && (BOOST_GCC >= 40600) && (BOOST_GCC < 80000)
-      #pragma GCC diagnostic push
-      #pragma GCC diagnostic ignored "-Wstrict-aliasing"
-      #define BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE T &get_data()
-   {  return *move_detail::force_ptr<T*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const T &get_data() const
-   {  return *move_detail::force_ptr<const T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE T *get_data_ptr()
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const T *get_data_ptr() const
-   {  return move_detail::force_ptr<T*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type &get_real_data()
-   {  return *move_detail::force_ptr<internal_type*>(this->m_storage.data);   }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type &get_real_data() const
-   {  return *move_detail::force_ptr<const internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE internal_type *get_real_data_ptr()
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE const internal_type *get_real_data_ptr() const
-   {  return move_detail::force_ptr<internal_type*>(this->m_storage.data);  }
-
-   BOOST_CONTAINER_FORCEINLINE ~slist_node()
-   {  move_detail::force_ptr<T*>(this->m_storage.data)->~T();  }
-
-   #if defined(BOOST_CONTAINER_DISABLE_ALIASING_WARNING)
-      #pragma GCC diagnostic pop
-      #undef BOOST_CONTAINER_DISABLE_ALIASING_WARNING
-   #  endif
-
-   BOOST_CONTAINER_FORCEINLINE void destroy_header()
-   {  static_cast<hook_type*>(this)->~hook_type();  }
-};
-
-
-template <class T, class VoidPointer>
-struct iiterator_node_value_type< slist_node<T,VoidPointer> > {
   typedef T type;
 };
 
@@ -142,8 +87,7 @@ struct intrusive_slist_type
       <typename allocator_traits_type::pointer>::template
          rebind_pointer<void>::type
             void_pointer;
-   typedef typename dtl::slist_node
-         <value_type, void_pointer>             node_type;
+   typedef base_node<value_type, slist_hook<void_pointer> > node_type;
 
    typedef typename dtl::bi::make_slist
       <node_type
@@ -214,7 +158,7 @@ class slist
    typedef typename AllocHolder::NodeAlloc                  NodeAlloc;
    typedef typename AllocHolder::ValAlloc                   ValAlloc;
    typedef typename AllocHolder::Node                       Node;
-   typedef dtl::allocator_destroyer<NodeAlloc> Destroyer;
+   typedef dtl::allocator_node_destroyer<NodeAlloc> Destroyer;
    typedef typename AllocHolder::alloc_version              alloc_version;
    typedef boost::container::
       allocator_traits<ValueAllocator>                           allocator_traits_type;
@@ -249,7 +193,7 @@ class slist
 
    //////////////////////////////////////////////
    //
-   //          construct/copy/destroy
+   //          constructFr/copy/destroy
    //
    //////////////////////////////////////////////
 
@@ -369,11 +313,12 @@ class slist
    slist(BOOST_RV_REF(slist) x, const allocator_type &a)
       : AllocHolder(a)
    {
-      if(this->node_alloc() == x.node_alloc()){
-         this->icont().swap(x.icont());
+      slist & sr = x;
+      if(this->node_alloc() == sr.node_alloc()){
+         this->icont().swap(sr.icont());
       }
       else{
-         this->insert_after(this->cbefore_begin(), boost::make_move_iterator(x.begin()), boost::make_move_iterator(x.end()));
+         this->insert_after(this->cbefore_begin(), boost::make_move_iterator(sr.begin()), boost::make_move_iterator(sr.end()));
       }
    }
 
@@ -425,9 +370,10 @@ class slist
       BOOST_NOEXCEPT_IF(allocator_traits_type::propagate_on_container_move_assignment::value
                                   || allocator_traits_type::is_always_equal::value)
    {
-      if (BOOST_LIKELY(this != &x)) {
+      slist & sr = x;
+      if (BOOST_LIKELY(this != &sr)) {
          NodeAlloc &this_alloc = this->node_alloc();
-         NodeAlloc &x_alloc    = x.node_alloc();
+         NodeAlloc &x_alloc    = sr.node_alloc();
          const bool propagate_alloc = allocator_traits_type::
                propagate_on_container_move_assignment::value;
          const bool allocators_equal = this_alloc == x_alloc; (void)allocators_equal;
@@ -437,14 +383,14 @@ class slist
             //Destroy
             this->clear();
             //Move allocator if needed
-            this->AllocHolder::move_assign_alloc(x);
+            this->AllocHolder::move_assign_alloc(sr);
             //Obtain resources
-            this->icont() = boost::move(x.icont());
+            this->icont() = boost::move(sr.icont());
          }
          //Else do a one by one move
          else{
-            this->assign( boost::make_move_iterator(x.begin())
-                        , boost::make_move_iterator(x.end()));
+            this->assign( boost::make_move_iterator(sr.begin())
+                        , boost::make_move_iterator(sr.end()));
          }
       }
       return *this;
@@ -1067,7 +1013,7 @@ class slist
    //! <b>Note</b>: Iterators of values obtained from list x now point to elements of
    //!    this list. Iterators of this list and all the references are not invalidated.
    void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice_after(prev_p, static_cast<slist&>(x));  }
+   {  this->splice_after(prev_p, BOOST_MOVE_TO_LV(x));  }
 
    //! <b>Requires</b>: prev_p must be a valid iterator of this.
    //!   i must point to an element contained in list x.
@@ -1104,7 +1050,7 @@ class slist
    //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
    //!   list. Iterators of this list and all the references are not invalidated.
    void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x, const_iterator prev) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice_after(prev_p, static_cast<slist&>(x), prev);  }
+   {  this->splice_after(prev_p, BOOST_MOVE_TO_LV(x), prev);  }
 
    //! <b>Requires</b>: prev_p must be a valid iterator of this.
    //!   before_first and before_last must be valid iterators of x.
@@ -1144,7 +1090,7 @@ class slist
    //!   list. Iterators of this list and all the references are not invalidated.
    void splice_after(const_iterator prev_p,      BOOST_RV_REF(slist) x,
       const_iterator before_first,  const_iterator before_last) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice_after(prev_p, static_cast<slist&>(x), before_first, before_last);  }
+   {  this->splice_after(prev_p, BOOST_MOVE_TO_LV(x), before_first, before_last);  }
 
    //! <b>Requires</b>: prev_p must be a valid iterator of this.
    //!   before_first and before_last must be valid iterators of x.
@@ -1188,7 +1134,7 @@ class slist
    void splice_after(const_iterator prev_p,      BOOST_RV_REF(slist) x,
                      const_iterator before_first,  const_iterator before_last,
                      size_type n) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice_after(prev_p, static_cast<slist&>(x), before_first, before_last, n);  }
+   {  this->splice_after(prev_p, BOOST_MOVE_TO_LV(x), before_first, before_last, n);  }
 
    //! <b>Effects</b>: Removes all the elements that compare equal to value.
    //!
@@ -1271,7 +1217,7 @@ class slist
    //! <b>Complexity</b>: This function is linear time: it performs at most
    //!   size() + x.size() - 1 comparisons.
    void merge(BOOST_RV_REF(slist) x)
-   {  this->merge(static_cast<slist&>(x)); }
+   {  this->merge(BOOST_MOVE_TO_LV(x)); }
 
    //! <b>Requires</b>: p must be a comparison function that induces a strict weak
    //!   ordering and both *this and x must be sorted according to that ordering
@@ -1311,7 +1257,7 @@ class slist
    //! <b>Note</b>: Iterators and references to *this are not invalidated.
    template <class StrictWeakOrdering>
    void merge(BOOST_RV_REF(slist) x, StrictWeakOrdering comp)
-   {  this->merge(static_cast<slist&>(x), comp); }
+   {  this->merge(BOOST_MOVE_TO_LV(x), comp); }
 
    //! <b>Effects</b>: This function sorts the list *this according to std::less<value_type>.
    //!   The sort is stable, that is, the relative order of equivalent elements is preserved.
@@ -1515,7 +1461,7 @@ class slist
    //! <b>Note</b>: Iterators of values obtained from list x now point to elements of
    //!    this list. Iterators of this list and all the references are not invalidated.
    void splice(const_iterator p, BOOST_RV_REF(slist) x) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice(p, static_cast<slist&>(x));  }
+   {  this->splice(p, BOOST_MOVE_TO_LV(x));  }
 
    //! <b>Requires</b>: p must point to an element contained
    //!   by this list. i must point to an element contained in list x.
@@ -1549,7 +1495,7 @@ class slist
    //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
    //!   list. Iterators of this list and all the references are not invalidated.
    void splice(const_iterator p, BOOST_RV_REF(slist) x, const_iterator i) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice(p, static_cast<slist&>(x), i);  }
+   {  this->splice(p, BOOST_MOVE_TO_LV(x), i);  }
 
    //! <b>Requires</b>: p must point to an element contained
    //!   by this list. first and last must point to elements contained in list x.
@@ -1583,7 +1529,7 @@ class slist
    //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
    //!   list. Iterators of this list and all the references are not invalidated.
    void splice(const_iterator p, BOOST_RV_REF(slist) x, const_iterator first, const_iterator last) BOOST_NOEXCEPT_OR_NOTHROW
-   {  this->splice(p, static_cast<slist&>(x), first, last);  }
+   {  this->splice(p, BOOST_MOVE_TO_LV(x), first, last);  }
 
    //! <b>Effects</b>: Returns true if x and y are equal
    //!
@@ -1636,11 +1582,9 @@ class slist
    #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
    private:
 
-   void priv_push_front (const T &x)
-   {  this->insert_after(this->cbefore_begin(), x);  }
-
-   void priv_push_front (BOOST_RV_REF(T) x)
-   {  this->insert_after(this->cbefore_begin(), ::boost::move(x));  }
+   template<class U>
+   void priv_push_front(BOOST_FWD_REF(U) x)
+   {  this->icont().push_front(*this->create_node(::boost::forward<U>(x))); }
 
    bool priv_try_shrink(size_type new_size, const_iterator &last_pos)
    {
diff --git a/test/check_equal_containers.hpp b/test/check_equal_containers.hpp
index 8fff4ec..f795b0d 100644
--- a/test/check_equal_containers.hpp
+++ b/test/check_equal_containers.hpp
@@ -14,6 +14,7 @@
 #include <boost/container/detail/config_begin.hpp>
 #include <boost/container/detail/pair.hpp>
 #include <boost/container/detail/mpl.hpp>
+#include <boost/container/detail/is_pair.hpp>
 #include <boost/move/unique_ptr.hpp>
 #include <boost/move/utility_core.hpp>
 
diff --git a/test/node_handle_test.cpp b/test/node_handle_test.cpp
index 3c26379..6aab38e 100644
--- a/test/node_handle_test.cpp
+++ b/test/node_handle_test.cpp
@@ -140,15 +140,18 @@ struct node
       ++count;
    }
 
-   ~node()
-   {
-      --count;
-   }
+   template<class Alloc>
+   void destructor(Alloc &)
+   {  this->~node(); }
 
    static unsigned int count;
 
    static void reset_count()
    {  count = 0;  }
+
+   ~node()
+   {  --count; }
+
 };
 
 template<class T1, class T2>
diff --git a/test/set_test.cpp b/test/set_test.cpp
index a9c9815..2c7c7ca 100644
--- a/test/set_test.cpp
+++ b/test/set_test.cpp
@@ -18,6 +18,7 @@
 #include "propagate_allocator_test.hpp"
 #include "emplace_test.hpp"
 #include "../../intrusive/test/iterator_test.hpp"
+#include <utility> //for std::pair
 
 using namespace boost::container;