diff DEPENDENCIES/generic/include/boost/intrusive/bstree.hpp @ 101:c530137014c0

Update Boost headers (1.58.0)
author Chris Cannam
date Mon, 07 Sep 2015 11:12:49 +0100
parents 2665513ce2d3
children
line wrap: on
line diff
--- a/DEPENDENCIES/generic/include/boost/intrusive/bstree.hpp	Fri Sep 04 12:01:02 2015 +0100
+++ b/DEPENDENCIES/generic/include/boost/intrusive/bstree.hpp	Mon Sep 07 11:12:49 2015 +0100
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 //
-// (C) Copyright Ion Gaztanaga  2013-2013
+// (C) Copyright Ion Gaztanaga  2013-2014
 //
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
@@ -13,130 +13,163 @@
 #define BOOST_INTRUSIVE_BSTREE_HPP
 
 #include <boost/intrusive/detail/config_begin.hpp>
-#include <algorithm>
-#include <cstddef>
-#include <functional>
-#include <iterator>
-#include <utility>
+#include <boost/intrusive/intrusive_fwd.hpp>
 
 #include <boost/intrusive/detail/assert.hpp>
 #include <boost/static_assert.hpp>
 #include <boost/intrusive/intrusive_fwd.hpp>
-#include <boost/intrusive/set_hook.hpp>
+#include <boost/intrusive/bs_set_hook.hpp>
 #include <boost/intrusive/detail/tree_node.hpp>
+#include <boost/intrusive/detail/tree_iterator.hpp>
 #include <boost/intrusive/detail/ebo_functor_holder.hpp>
 #include <boost/intrusive/detail/mpl.hpp>
 #include <boost/intrusive/pointer_traits.hpp>
-#include <boost/intrusive/detail/clear_on_destructor_base.hpp>
-#include <boost/intrusive/detail/function_detector.hpp>
-#include <boost/intrusive/detail/utilities.hpp>
-#include <boost/intrusive/options.hpp>
+#include <boost/intrusive/detail/is_stateful_value_traits.hpp>
+#include <boost/intrusive/detail/empty_node_checker.hpp>
+#include <boost/intrusive/detail/default_header_holder.hpp>
+#include <boost/intrusive/detail/reverse_iterator.hpp>
+#include <boost/intrusive/detail/exception_disposer.hpp>
+#include <boost/intrusive/detail/node_cloner_disposer.hpp>
+#include <boost/intrusive/detail/key_nodeptr_comp.hpp>
+#include <boost/intrusive/detail/simple_disposers.hpp>
+#include <boost/intrusive/detail/size_holder.hpp>
+#include <boost/intrusive/detail/algo_type.hpp>
+#include <boost/intrusive/detail/algorithm.hpp>
+
+#include <boost/intrusive/detail/get_value_traits.hpp>
 #include <boost/intrusive/bstree_algorithms.hpp>
 #include <boost/intrusive/link_mode.hpp>
-#include <boost/move/move.hpp>
+#include <boost/intrusive/parent_from_member.hpp>
+#include <boost/move/utility_core.hpp>
+#include <boost/move/adl_move_swap.hpp>
+
+#include <boost/intrusive/detail/minimal_pair_header.hpp>
+#include <cstddef>   //size_t...
+#include <boost/intrusive/detail/minimal_less_equal_header.hpp>//less, equal_to
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
 
 namespace boost {
 namespace intrusive {
 
 /// @cond
 
+struct default_bstree_hook_applier
+{  template <class T> struct apply{ typedef typename T::default_bstree_hook type;  };  };
+
+template<>
+struct is_default_hook_tag<default_bstree_hook_applier>
+{  static const bool value = true;  };
+
 struct bstree_defaults
 {
-   typedef detail::default_bstree_hook proto_value_traits;
+   typedef default_bstree_hook_applier proto_value_traits;
    static const bool constant_time_size = true;
    typedef std::size_t size_type;
    typedef void compare;
    static const bool floating_point = true;  //For sgtree
    typedef void priority;  //For treap
+   typedef void header_holder_type;
 };
 
-template<class ValueTraits, algo_types AlgoType>
+template<class ValueTraits, algo_types AlgoType, typename HeaderHolder>
 struct bstbase3
-   : public detail::get_real_value_traits<ValueTraits>::type::node_traits::node
-   , public ValueTraits
 {
    typedef ValueTraits                                               value_traits;
-   typedef typename detail::get_real_value_traits<ValueTraits>::type real_value_traits;
-   typedef typename real_value_traits::node_traits                   node_traits;
+   typedef typename value_traits::node_traits                        node_traits;
    typedef typename node_traits::node                                node_type;
    typedef typename get_algo<AlgoType, node_traits>::type            node_algorithms;
    typedef typename node_traits::node_ptr                            node_ptr;
    typedef typename node_traits::const_node_ptr                      const_node_ptr;
-
-   bstbase3(const ValueTraits &vtraits)
-      : ValueTraits(vtraits)
-   {}
-
-   static const bool external_value_traits =
-      detail::external_value_traits_bool_is_true<ValueTraits>::value;
-
-   node_ptr header_ptr()
-   {  return pointer_traits<node_ptr>::pointer_to(static_cast<node_type&>(*this));  }
-
-   const_node_ptr header_ptr() const
-   {  return pointer_traits<const_node_ptr>::pointer_to(static_cast<const node_type&>(*this));  }
-
-   const value_traits &val_traits() const
-   {  return *this;  }
-
-   value_traits &val_traits()
-   {  return *this;  }
-
-   const real_value_traits &get_real_value_traits(detail::bool_<false>) const
-   {  return *this;  }
-
-   const real_value_traits &get_real_value_traits(detail::bool_<true>) const
-   {  return this->val_traits().get_value_traits(*this);  }
-
-   real_value_traits &get_real_value_traits(detail::bool_<false>)
-   {  return *this;  }
-
-   real_value_traits &get_real_value_traits(detail::bool_<true>)
-   {  return this->val_traits().get_value_traits(*this);  }
-
-   const real_value_traits &get_real_value_traits() const
-   {  return this->get_real_value_traits(detail::bool_<external_value_traits>());  }
-
-   real_value_traits &get_real_value_traits()
-   {  return this->get_real_value_traits(detail::bool_<external_value_traits>());  }
-
-   typedef typename pointer_traits<node_ptr>::template rebind_pointer<const real_value_traits>::type const_real_value_traits_ptr;
-
-   const_real_value_traits_ptr real_value_traits_ptr() const
-   {  return pointer_traits<const_real_value_traits_ptr>::pointer_to(this->get_real_value_traits());  }
-
-
-   typedef tree_iterator<real_value_traits, false> iterator;
-   typedef tree_iterator<real_value_traits, true>  const_iterator;
-   typedef boost::intrusive::detail::reverse_iterator<iterator>         reverse_iterator;
-   typedef boost::intrusive::detail::reverse_iterator<const_iterator>   const_reverse_iterator;
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::pointer)                          pointer;
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::const_pointer)                    const_pointer;
+   typedef tree_iterator<value_traits, false>                                                   iterator;
+   typedef tree_iterator<value_traits, true>                                                    const_iterator;
+   typedef boost::intrusive::reverse_iterator<iterator>                                         reverse_iterator;
+   typedef boost::intrusive::reverse_iterator<const_iterator>                                   const_reverse_iterator;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::pointer)                               pointer;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::const_pointer)                         const_pointer;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::element_type)               value_type;
    typedef BOOST_INTRUSIVE_IMPDEF(value_type)                                                   key_type;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::reference)                  reference;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<const_pointer>::reference)            const_reference;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<const_pointer>::difference_type)      difference_type;
-   static const bool safemode_or_autounlink = is_safe_autounlink<real_value_traits::link_mode>::value;
-   static const bool stateful_value_traits = detail::is_stateful_value_traits<real_value_traits>::value;
+   typedef typename detail::get_header_holder_type
+      < value_traits,HeaderHolder >::type                                                       header_holder_type;
+
+   static const bool safemode_or_autounlink = is_safe_autounlink<value_traits::link_mode>::value;
+   static const bool stateful_value_traits = detail::is_stateful_value_traits<value_traits>::value;
+   static const bool has_container_from_iterator =
+        detail::is_same< header_holder_type, detail::default_header_holder< node_traits > >::value;
+
+   struct holder_t : public ValueTraits
+   {
+      explicit holder_t(const ValueTraits &vtraits)
+         : ValueTraits(vtraits)
+      {}
+      header_holder_type root;
+   } holder;
+
+   static bstbase3 &get_tree_base_from_end_iterator(const const_iterator &end_iterator)
+   {
+      BOOST_STATIC_ASSERT(has_container_from_iterator);
+      node_ptr p = end_iterator.pointed_node();
+      header_holder_type* h = header_holder_type::get_holder(p);
+      holder_t *holder = get_parent_from_member<holder_t, header_holder_type>(h, &holder_t::root);
+      bstbase3 *base   = get_parent_from_member<bstbase3, holder_t> (holder, &bstbase3::holder);
+      return *base;
+   }
+
+   bstbase3(const ValueTraits &vtraits)
+      : holder(vtraits)
+   {
+      node_algorithms::init_header(this->header_ptr());
+   }
+
+   node_ptr header_ptr()
+   { return holder.root.get_node(); }
+
+   const_node_ptr header_ptr() const
+   { return holder.root.get_node(); }
+
+   const value_traits &get_value_traits() const
+   {  return this->holder;  }
+
+   value_traits &get_value_traits()
+   {  return this->holder;  }
+
+   typedef typename boost::intrusive::value_traits_pointers
+      <ValueTraits>::const_value_traits_ptr const_value_traits_ptr;
+
+   const_value_traits_ptr priv_value_traits_ptr() const
+   {  return pointer_traits<const_value_traits_ptr>::pointer_to(this->get_value_traits());  }
 
    iterator begin()
-   {  return iterator (node_traits::get_left(this->header_ptr()), this->real_value_traits_ptr());   }
+   {  return iterator(node_algorithms::begin_node(this->header_ptr()), this->priv_value_traits_ptr());   }
 
    const_iterator begin() const
    {  return cbegin();   }
 
    const_iterator cbegin() const
-   {  return const_iterator (node_traits::get_left(this->header_ptr()), this->real_value_traits_ptr());   }
+   {  return const_iterator(node_algorithms::begin_node(this->header_ptr()), this->priv_value_traits_ptr());   }
 
    iterator end()
-   {  return iterator (this->header_ptr(), this->real_value_traits_ptr());  }
+   {  return iterator(node_algorithms::end_node(this->header_ptr()), this->priv_value_traits_ptr());   }
 
    const_iterator end() const
    {  return cend();  }
 
    const_iterator cend() const
-   {  return const_iterator (detail::uncast(this->header_ptr()), this->real_value_traits_ptr());  }
+   {  return const_iterator(node_algorithms::end_node(this->header_ptr()), this->priv_value_traits_ptr());   }
+
+   iterator root()
+   {  return iterator(node_algorithms::root_node(this->header_ptr()), this->priv_value_traits_ptr());   }
+
+   const_iterator root() const
+   {  return croot();   }
+
+   const_iterator croot() const
+   {  return const_iterator(node_algorithms::root_node(this->header_ptr()), this->priv_value_traits_ptr());   }
 
    reverse_iterator rbegin()
    {  return reverse_iterator(end());  }
@@ -158,9 +191,9 @@
 
    void replace_node(iterator replace_this, reference with_this)
    {
-      node_algorithms::replace_node( get_real_value_traits().to_node_ptr(*replace_this)
+      node_algorithms::replace_node( get_value_traits().to_node_ptr(*replace_this)
                                    , this->header_ptr()
-                                   , get_real_value_traits().to_node_ptr(with_this));
+                                   , get_value_traits().to_node_ptr(with_this));
       if(safemode_or_autounlink)
          node_algorithms::init(replace_this.pointed_node());
    }
@@ -169,43 +202,57 @@
    {  node_algorithms::rebalance(this->header_ptr()); }
 
    iterator rebalance_subtree(iterator root)
-   {  return iterator(node_algorithms::rebalance_subtree(root.pointed_node()), this->real_value_traits_ptr()); }
+   {  return iterator(node_algorithms::rebalance_subtree(root.pointed_node()), this->priv_value_traits_ptr()); }
 
    static iterator s_iterator_to(reference value)
    {
       BOOST_STATIC_ASSERT((!stateful_value_traits));
-      return iterator (value_traits::to_node_ptr(value), const_real_value_traits_ptr());
+      return iterator (value_traits::to_node_ptr(value), const_value_traits_ptr());
    }
 
    static const_iterator s_iterator_to(const_reference value)
    {
       BOOST_STATIC_ASSERT((!stateful_value_traits));
-      return const_iterator (value_traits::to_node_ptr(const_cast<reference> (value)), const_real_value_traits_ptr());
+      return const_iterator (value_traits::to_node_ptr(*pointer_traits<pointer>::const_cast_from(pointer_traits<const_pointer>::pointer_to(value))), const_value_traits_ptr());
    }
 
    iterator iterator_to(reference value)
-   {  return iterator (value_traits::to_node_ptr(value), this->real_value_traits_ptr()); }
+   {  return iterator (this->get_value_traits().to_node_ptr(value), this->priv_value_traits_ptr()); }
 
    const_iterator iterator_to(const_reference value) const
-   {  return const_iterator (value_traits::to_node_ptr(const_cast<reference> (value)), this->real_value_traits_ptr()); }
+   {  return const_iterator (this->get_value_traits().to_node_ptr(*pointer_traits<pointer>::const_cast_from(pointer_traits<const_pointer>::pointer_to(value))), this->priv_value_traits_ptr()); }
 
    static void init_node(reference value)
    { node_algorithms::init(value_traits::to_node_ptr(value)); }
 
 };
 
-template<class ValueTraits, class VoidOrKeyComp, algo_types AlgoType>
+template<class Less, class T>
+struct get_compare
+{
+   typedef Less type;
+};
+
+template<class T>
+struct get_compare<void, T>
+{
+   typedef ::std::less<T> type;
+};
+
+template<class ValueTraits, class VoidOrKeyComp, algo_types AlgoType, typename HeaderHolder>
 struct bstbase2
-   : public bstbase3<ValueTraits, AlgoType>
-   , public detail::ebo_functor_holder<typename get_less< VoidOrKeyComp
-                            , typename detail::get_real_value_traits<ValueTraits>::type::value_type
+   //Put the (possibly empty) functor in the first position to get EBO in MSVC
+   //Use public inheritance to avoid MSVC bugs with closures
+   : public detail::ebo_functor_holder<typename get_compare< VoidOrKeyComp
+                            , typename ValueTraits::value_type
                             >::type>
+   , public bstbase3<ValueTraits, AlgoType, HeaderHolder>
 {
-   typedef bstbase3<ValueTraits, AlgoType>                           treeheader_t;
-   typedef typename treeheader_t::real_value_traits                  real_value_traits;
+   typedef bstbase3<ValueTraits, AlgoType, HeaderHolder>             treeheader_t;
+   typedef typename treeheader_t::value_traits                       value_traits;
    typedef typename treeheader_t::node_algorithms                    node_algorithms;
-   typedef typename get_less
-      < VoidOrKeyComp, typename real_value_traits::value_type>::type value_compare;
+   typedef typename get_compare
+      < VoidOrKeyComp, typename value_traits::value_type>::type      value_compare;
    typedef BOOST_INTRUSIVE_IMPDEF(value_compare)                     key_compare;
    typedef typename treeheader_t::iterator                           iterator;
    typedef typename treeheader_t::const_iterator                     const_iterator;
@@ -213,17 +260,17 @@
    typedef typename treeheader_t::const_node_ptr                     const_node_ptr;
 
    bstbase2(const value_compare &comp, const ValueTraits &vtraits)
-      : treeheader_t(vtraits), detail::ebo_functor_holder<value_compare>(comp)
+      : detail::ebo_functor_holder<value_compare>(comp), treeheader_t(vtraits)
    {}
 
    const value_compare &comp() const
    {  return this->get();  }
-   
+
    value_compare &comp()
    {  return this->get();  }
 
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::pointer)                          pointer;
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::const_pointer)                    const_pointer;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::pointer)                               pointer;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::const_pointer)                         const_pointer;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::element_type)               value_type;
    typedef BOOST_INTRUSIVE_IMPDEF(value_type)                                                   key_type;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::reference)                  reference;
@@ -237,6 +284,7 @@
    key_compare key_comp() const
    {  return this->comp();   }
 
+   //lower_bound
    iterator lower_bound(const_reference value)
    {  return this->lower_bound(value, this->comp());   }
 
@@ -246,31 +294,32 @@
    template<class KeyType, class KeyValueCompare>
    iterator lower_bound(const KeyType &key, KeyValueCompare comp)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return iterator(node_algorithms::lower_bound
-         (this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
    template<class KeyType, class KeyValueCompare>
    const_iterator lower_bound(const KeyType &key, KeyValueCompare comp) const
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return const_iterator(node_algorithms::lower_bound
-         (this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
+   //upper_bound
    iterator upper_bound(const_reference value)
    {  return this->upper_bound(value, this->comp());   }
 
    template<class KeyType, class KeyValueCompare>
    iterator upper_bound(const KeyType &key, KeyValueCompare comp)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return iterator(node_algorithms::upper_bound
-         (this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
    const_iterator upper_bound(const_reference value) const
@@ -279,22 +328,23 @@
    template<class KeyType, class KeyValueCompare>
    const_iterator upper_bound(const KeyType &key, KeyValueCompare comp) const
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return const_iterator(node_algorithms::upper_bound
-         (this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
+   //find
    iterator find(const_reference value)
    {  return this->find(value, this->comp()); }
 
    template<class KeyType, class KeyValueCompare>
    iterator find(const KeyType &key, KeyValueCompare comp)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return iterator
-         (node_algorithms::find(this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (node_algorithms::find(this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
    const_iterator find(const_reference value) const
@@ -303,24 +353,25 @@
    template<class KeyType, class KeyValueCompare>
    const_iterator find(const KeyType &key, KeyValueCompare comp) const
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       return const_iterator
-         (node_algorithms::find(this->header_ptr(), key, key_node_comp), this->real_value_traits_ptr());
+         (node_algorithms::find(this->header_ptr(), key, key_node_comp), this->priv_value_traits_ptr());
    }
 
+   //equal_range
    std::pair<iterator,iterator> equal_range(const_reference value)
    {  return this->equal_range(value, this->comp());   }
 
    template<class KeyType, class KeyValueCompare>
    std::pair<iterator,iterator> equal_range(const KeyType &key, KeyValueCompare comp)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       std::pair<node_ptr, node_ptr> ret
          (node_algorithms::equal_range(this->header_ptr(), key, key_node_comp));
-      return std::pair<iterator, iterator>( iterator(ret.first, this->real_value_traits_ptr())
-                                          , iterator(ret.second, this->real_value_traits_ptr()));
+      return std::pair<iterator, iterator>( iterator(ret.first, this->priv_value_traits_ptr())
+                                          , iterator(ret.second, this->priv_value_traits_ptr()));
    }
 
    std::pair<const_iterator, const_iterator>
@@ -331,14 +382,46 @@
    std::pair<const_iterator, const_iterator>
       equal_range(const KeyType &key, KeyValueCompare comp) const
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       std::pair<node_ptr, node_ptr> ret
          (node_algorithms::equal_range(this->header_ptr(), key, key_node_comp));
-      return std::pair<const_iterator, const_iterator>( const_iterator(ret.first, this->real_value_traits_ptr())
-                                                      , const_iterator(ret.second, this->real_value_traits_ptr()));
+      return std::pair<const_iterator, const_iterator>( const_iterator(ret.first, this->priv_value_traits_ptr())
+                                                      , const_iterator(ret.second, this->priv_value_traits_ptr()));
    }
 
+   //lower_bound_range
+   std::pair<iterator,iterator> lower_bound_range(const_reference value)
+   {  return this->lower_bound_range(value, this->comp());   }
+
+   template<class KeyType, class KeyValueCompare>
+   std::pair<iterator,iterator> lower_bound_range(const KeyType &key, KeyValueCompare comp)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
+      std::pair<node_ptr, node_ptr> ret
+         (node_algorithms::lower_bound_range(this->header_ptr(), key, key_node_comp));
+      return std::pair<iterator, iterator>( iterator(ret.first, this->priv_value_traits_ptr())
+                                          , iterator(ret.second, this->priv_value_traits_ptr()));
+   }
+
+   std::pair<const_iterator, const_iterator>
+      lower_bound_range(const_reference value) const
+   {  return this->lower_bound_range(value, this->comp());   }
+
+   template<class KeyType, class KeyValueCompare>
+   std::pair<const_iterator, const_iterator>
+      lower_bound_range(const KeyType &key, KeyValueCompare comp) const
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
+      std::pair<node_ptr, node_ptr> ret
+         (node_algorithms::lower_bound_range(this->header_ptr(), key, key_node_comp));
+      return std::pair<const_iterator, const_iterator>( const_iterator(ret.first, this->priv_value_traits_ptr())
+                                                      , const_iterator(ret.second, this->priv_value_traits_ptr()));
+   }
+
+   //bounded_range
    std::pair<iterator,iterator> bounded_range
       (const_reference lower_value, const_reference upper_value, bool left_closed, bool right_closed)
    {  return this->bounded_range(lower_value, upper_value, this->comp(), left_closed, right_closed);   }
@@ -347,13 +430,13 @@
    std::pair<iterator,iterator> bounded_range
       (const KeyType &lower_key, const KeyType &upper_key, KeyValueCompare comp, bool left_closed, bool right_closed)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       std::pair<node_ptr, node_ptr> ret
          (node_algorithms::bounded_range
             (this->header_ptr(), lower_key, upper_key, key_node_comp, left_closed, right_closed));
-      return std::pair<iterator, iterator>( iterator(ret.first, this->real_value_traits_ptr())
-                                          , iterator(ret.second, this->real_value_traits_ptr()));
+      return std::pair<iterator, iterator>( iterator(ret.first, this->priv_value_traits_ptr())
+                                          , iterator(ret.second, this->priv_value_traits_ptr()));
    }
 
    std::pair<const_iterator,const_iterator> bounded_range
@@ -364,25 +447,26 @@
    std::pair<const_iterator,const_iterator> bounded_range
       (const KeyType &lower_key, const KeyType &upper_key, KeyValueCompare comp, bool left_closed, bool right_closed) const
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         key_node_comp(comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         key_node_comp(comp, &this->get_value_traits());
       std::pair<node_ptr, node_ptr> ret
          (node_algorithms::bounded_range
             (this->header_ptr(), lower_key, upper_key, key_node_comp, left_closed, right_closed));
-      return std::pair<const_iterator, const_iterator>( const_iterator(ret.first, this->real_value_traits_ptr())
-                                                      , const_iterator(ret.second, this->real_value_traits_ptr()));
+      return std::pair<const_iterator, const_iterator>( const_iterator(ret.first, this->priv_value_traits_ptr())
+                                                      , const_iterator(ret.second, this->priv_value_traits_ptr()));
    }
 
+   //insert_unique_check
    template<class KeyType, class KeyValueCompare>
    std::pair<iterator, bool> insert_unique_check
       (const KeyType &key, KeyValueCompare key_value_comp, insert_commit_data &commit_data)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         ocomp(key_value_comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         ocomp(key_value_comp, &this->get_value_traits());
       std::pair<node_ptr, bool> ret =
          (node_algorithms::insert_unique_check
             (this->header_ptr(), key, ocomp, commit_data));
-      return std::pair<iterator, bool>(iterator(ret.first, this->real_value_traits_ptr()), ret.second);
+      return std::pair<iterator, bool>(iterator(ret.first, this->priv_value_traits_ptr()), ret.second);
    }
 
    template<class KeyType, class KeyValueCompare>
@@ -390,63 +474,102 @@
       (const_iterator hint, const KeyType &key
       ,KeyValueCompare key_value_comp, insert_commit_data &commit_data)
    {
-      detail::key_nodeptr_comp<KeyValueCompare, real_value_traits>
-         ocomp(key_value_comp, &this->get_real_value_traits());
+      detail::key_nodeptr_comp<KeyValueCompare, value_traits>
+         ocomp(key_value_comp, &this->get_value_traits());
       std::pair<node_ptr, bool> ret =
          (node_algorithms::insert_unique_check
             (this->header_ptr(), hint.pointed_node(), key, ocomp, commit_data));
-      return std::pair<iterator, bool>(iterator(ret.first, this->real_value_traits_ptr()), ret.second);
+      return std::pair<iterator, bool>(iterator(ret.first, this->priv_value_traits_ptr()), ret.second);
    }
 };
 
-template<class ValueTraits, class VoidOrKeyComp, bool ConstantTimeSize, class SizeType, algo_types AlgoType>
+//Due to MSVC's EBO implementation, to save space and maintain the ABI, we must put the non-empty size member
+//in the first position, but if size is not going to be stored then we'll use an specialization
+//that doesn't inherit from size_holder
+template<class ValueTraits, class VoidOrKeyComp, bool ConstantTimeSize, class SizeType, algo_types AlgoType, typename HeaderHolder>
+struct bstbase_hack
+   : public detail::size_holder<ConstantTimeSize, SizeType>
+   , public bstbase2 < ValueTraits, VoidOrKeyComp, AlgoType, HeaderHolder>
+{
+   typedef bstbase2< ValueTraits, VoidOrKeyComp, AlgoType, HeaderHolder> base_type;
+   typedef typename base_type::value_compare       value_compare;
+   typedef SizeType                                size_type;
+   typedef typename base_type::node_traits         node_traits;
+   typedef typename get_algo
+      <AlgoType, node_traits>::type                algo_type;
+
+   bstbase_hack(const value_compare & comp, const ValueTraits &vtraits)
+      : base_type(comp, vtraits)
+   {
+      this->sz_traits().set_size(size_type(0));
+   }
+
+   typedef detail::size_holder<ConstantTimeSize, SizeType>     size_traits;
+
+   size_traits &sz_traits()
+   {  return static_cast<size_traits &>(*this);  }
+
+   const size_traits &sz_traits() const
+   {  return static_cast<const size_traits &>(*this);  }
+};
+
+//Specialization for ConstantTimeSize == false
+template<class ValueTraits, class VoidOrKeyComp, class SizeType, algo_types AlgoType, typename HeaderHolder>
+struct bstbase_hack<ValueTraits, VoidOrKeyComp, false, SizeType, AlgoType, HeaderHolder>
+   : public bstbase2 < ValueTraits, VoidOrKeyComp, AlgoType, HeaderHolder>
+{
+   typedef bstbase2< ValueTraits, VoidOrKeyComp, AlgoType, HeaderHolder> base_type;
+   typedef typename base_type::value_compare       value_compare;
+   bstbase_hack(const value_compare & comp, const ValueTraits &vtraits)
+      : base_type(comp, vtraits)
+   {}
+
+   typedef detail::size_holder<true, SizeType>     size_traits;
+
+   size_traits &sz_traits()
+   {  return s_size_traits;  }
+
+   const size_traits &sz_traits() const
+   {  return s_size_traits;  }
+
+   static size_traits s_size_traits;
+};
+
+template<class ValueTraits, class VoidOrKeyComp, class SizeType, algo_types AlgoType, typename HeaderHolder>
+detail::size_holder<true, SizeType> bstbase_hack<ValueTraits, VoidOrKeyComp, false, SizeType, AlgoType, HeaderHolder>::s_size_traits;
+
+//This class will
+template<class ValueTraits, class VoidOrKeyComp, bool ConstantTimeSize, class SizeType, algo_types AlgoType, typename HeaderHolder>
 struct bstbase
-   : public detail::size_holder<ConstantTimeSize, SizeType>
-   , public bstbase2 < ValueTraits, VoidOrKeyComp, AlgoType>
+   : public bstbase_hack< ValueTraits, VoidOrKeyComp, ConstantTimeSize, SizeType, AlgoType, HeaderHolder>
 {
-   typedef typename detail::get_real_value_traits<ValueTraits>::type real_value_traits;
-   typedef bstbase2< ValueTraits, VoidOrKeyComp, AlgoType> base_type;
+   typedef bstbase_hack< ValueTraits, VoidOrKeyComp, ConstantTimeSize, SizeType, AlgoType, HeaderHolder> base_type;
+   typedef ValueTraits                             value_traits;
    typedef typename base_type::value_compare       value_compare;
-   typedef BOOST_INTRUSIVE_IMPDEF(value_compare)   key_compare;
+   typedef value_compare                           key_compare;
    typedef typename base_type::const_reference     const_reference;
    typedef typename base_type::reference           reference;
    typedef typename base_type::iterator            iterator;
    typedef typename base_type::const_iterator      const_iterator;
    typedef typename base_type::node_traits         node_traits;
    typedef typename get_algo
-      <AlgoType, node_traits>::type                algo_type;
+      <AlgoType, node_traits>::type                node_algorithms;
    typedef SizeType                                size_type;
 
    bstbase(const value_compare & comp, const ValueTraits &vtraits)
       : base_type(comp, vtraits)
    {}
 
-   public:
-   typedef detail::size_holder<ConstantTimeSize, SizeType>     size_traits;
-
-   size_traits &sz_traits()
-   {  return *this;  }
-
-   const size_traits &sz_traits() const
-   {  return *this;  }
-
-   size_type count(const_reference value) const
-   {  return size_type(this->count(value, this->comp()));   }
-
-   template<class KeyType, class KeyValueCompare>
-   size_type count(const KeyType &key, KeyValueCompare comp) const
+   //Detach all inserted nodes. This will add exception safety to bstree_impl
+   //constructors inserting elements.
+   ~bstbase()
    {
-      std::pair<const_iterator, const_iterator> ret = this->equal_range(key, comp);
-      return size_type(std::distance(ret.first, ret.second));
-   }
-
-   bool empty() const
-   {
-      if(ConstantTimeSize){
-         return !this->sz_traits().get_size();
-      }
-      else{
-         return algo_type::unique(this->header_ptr());
+      if(is_safe_autounlink<value_traits::link_mode>::value){
+         node_algorithms::clear_and_dispose
+            ( this->header_ptr()
+            , detail::node_disposer<detail::null_disposer, value_traits, AlgoType>
+               (detail::null_disposer(), &this->get_value_traits()));
+         node_algorithms::init(this->header_ptr());
       }
    }
 };
@@ -472,29 +595,21 @@
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 class bstree_impl
-   :  public bstbase<ValueTraits, VoidKeyComp, ConstantTimeSize, SizeType, AlgoType>
-   ,  private detail::clear_on_destructor_base
-         < bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> 
-         , is_safe_autounlink<detail::get_real_value_traits<ValueTraits>::type::link_mode>::value
-         >
+   :  public bstbase<ValueTraits, VoidKeyComp, ConstantTimeSize, SizeType, AlgoType, HeaderHolder>
 {
-   template<class C, bool> friend class detail::clear_on_destructor_base;
    public:
-   typedef ValueTraits value_traits;
    /// @cond
-   static const bool external_value_traits =
-      detail::external_value_traits_bool_is_true<value_traits>::value;
-   typedef typename detail::get_real_value_traits<ValueTraits>::type real_value_traits;
-   typedef bstbase<value_traits, VoidKeyComp, ConstantTimeSize, SizeType, AlgoType> data_type;
-   typedef tree_iterator<real_value_traits, false> iterator_type;
-   typedef tree_iterator<real_value_traits, true>  const_iterator_type;
+   typedef bstbase<ValueTraits, VoidKeyComp, ConstantTimeSize, SizeType, AlgoType, HeaderHolder> data_type;
+   typedef tree_iterator<ValueTraits, false> iterator_type;
+   typedef tree_iterator<ValueTraits, true>  const_iterator_type;
    /// @endcond
 
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::pointer)                          pointer;
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::const_pointer)                    const_pointer;
+   typedef BOOST_INTRUSIVE_IMPDEF(ValueTraits)                                                  value_traits;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::pointer)                               pointer;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::const_pointer)                         const_pointer;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::element_type)               value_type;
    typedef BOOST_INTRUSIVE_IMPDEF(value_type)                                                   key_type;
    typedef BOOST_INTRUSIVE_IMPDEF(typename pointer_traits<pointer>::reference)                  reference;
@@ -505,9 +620,9 @@
    typedef BOOST_INTRUSIVE_IMPDEF(value_compare)                                                key_compare;
    typedef BOOST_INTRUSIVE_IMPDEF(iterator_type)                                                iterator;
    typedef BOOST_INTRUSIVE_IMPDEF(const_iterator_type)                                          const_iterator;
-   typedef BOOST_INTRUSIVE_IMPDEF(boost::intrusive::detail::reverse_iterator<iterator>)         reverse_iterator;
-   typedef BOOST_INTRUSIVE_IMPDEF(boost::intrusive::detail::reverse_iterator<const_iterator>)   const_reverse_iterator;
-   typedef BOOST_INTRUSIVE_IMPDEF(typename real_value_traits::node_traits)                      node_traits;
+   typedef BOOST_INTRUSIVE_IMPDEF(boost::intrusive::reverse_iterator<iterator>)                 reverse_iterator;
+   typedef BOOST_INTRUSIVE_IMPDEF(boost::intrusive::reverse_iterator<const_iterator>)           const_reverse_iterator;
+   typedef BOOST_INTRUSIVE_IMPDEF(typename value_traits::node_traits)                           node_traits;
    typedef BOOST_INTRUSIVE_IMPDEF(typename node_traits::node)                                   node;
    typedef BOOST_INTRUSIVE_IMPDEF(typename node_traits::node_ptr)                               node_ptr;
    typedef BOOST_INTRUSIVE_IMPDEF(typename node_traits::const_node_ptr)                         const_node_ptr;
@@ -517,17 +632,17 @@
    typedef BOOST_INTRUSIVE_IMPDEF(algo_type)                                                    node_algorithms;
 
    static const bool constant_time_size = ConstantTimeSize;
-   static const bool stateful_value_traits = detail::is_stateful_value_traits<real_value_traits>::value;
+   static const bool stateful_value_traits = detail::is_stateful_value_traits<value_traits>::value;
    /// @cond
    private:
 
    //noncopyable
    BOOST_MOVABLE_BUT_NOT_COPYABLE(bstree_impl)
 
-   static const bool safemode_or_autounlink = is_safe_autounlink<real_value_traits::link_mode>::value;
+   static const bool safemode_or_autounlink = is_safe_autounlink<value_traits::link_mode>::value;
 
    //Constant-time size is incompatible with auto-unlink hooks!
-   BOOST_STATIC_ASSERT(!(constant_time_size && ((int)real_value_traits::link_mode == (int)auto_unlink)));
+   BOOST_STATIC_ASSERT(!(constant_time_size && ((int)value_traits::link_mode == (int)auto_unlink)));
 
 
    protected:
@@ -545,14 +660,11 @@
    //!
    //! <b>Throws</b>: If value_traits::node_traits::node
    //!   constructor throws (this does not happen with predefined Boost.Intrusive hooks)
-   //!   or the copy constructorof the value_compare object throws. Basic guarantee.
+   //!   or the copy constructor of the value_compare object throws. Basic guarantee.
    explicit bstree_impl( const value_compare &cmp = value_compare()
                        , const value_traits &v_traits = value_traits())
       :  data_type(cmp, v_traits)
-   {
-      node_algorithms::init_header(this->header_ptr());
-      this->sz_traits().set_size(size_type(0));
-   }
+   {}
 
    //! <b>Requires</b>: Dereferencing iterator must yield an lvalue of type value_type.
    //!   cmp must be a comparison function that induces a strict weak ordering.
@@ -572,8 +684,7 @@
               , const value_traits &v_traits = value_traits())
       : data_type(cmp, v_traits)
    {
-      node_algorithms::init_header(this->header_ptr());
-      this->sz_traits().set_size(size_type(0));
+      //bstbase releases elements in case of exceptions
       if(unique)
          this->insert_unique(b, e);
       else
@@ -583,10 +694,8 @@
    //! <b>Effects</b>: to-do
    //!
    bstree_impl(BOOST_RV_REF(bstree_impl) x)
-      : data_type(::boost::move(x.comp()), ::boost::move(x.val_traits()))
+      : data_type(::boost::move(x.comp()), ::boost::move(x.get_value_traits()))
    {
-      node_algorithms::init_header(this->header_ptr());
-      this->sz_traits().set_size(size_type(0));
       this->swap(x);
    }
 
@@ -708,8 +817,8 @@
    //! <b>Complexity</b>: Constant.
    static bstree_impl &container_from_end_iterator(iterator end_iterator)
    {
-      return *static_cast<bstree_impl*>
-               (boost::intrusive::detail::to_raw_pointer(end_iterator.pointed_node()));
+      return static_cast<bstree_impl&>
+               (data_type::get_tree_base_from_end_iterator(end_iterator));
    }
 
    //! <b>Precondition</b>: end_iterator must be a valid end const_iterator
@@ -722,8 +831,8 @@
    //! <b>Complexity</b>: Constant.
    static const bstree_impl &container_from_end_iterator(const_iterator end_iterator)
    {
-      return *static_cast<const bstree_impl*>
-               (boost::intrusive::detail::to_raw_pointer(end_iterator.pointed_node()));
+      return static_cast<bstree_impl&>
+               (data_type::get_tree_base_from_end_iterator(end_iterator));
    }
 
    //! <b>Precondition</b>: it must be a valid iterator
@@ -756,7 +865,7 @@
    //!
    //! <b>Throws</b>: If value_compare copy-constructor throws.
    key_compare key_comp() const;
-   
+
    //! <b>Effects</b>: Returns the value_compare object used by the container.
    //!
    //! <b>Complexity</b>: Constant.
@@ -764,14 +873,22 @@
    //! <b>Throws</b>: If value_compare copy-constructor throws.
    value_compare value_comp() const;
 
+   #endif   //#ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
+
    //! <b>Effects</b>: Returns true if the container is empty.
    //!
    //! <b>Complexity</b>: Constant.
    //!
    //! <b>Throws</b>: Nothing.
-   bool empty() const;
-
-   #endif   //#ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
+   bool empty() const
+   {
+      if(ConstantTimeSize){
+         return !this->data_type::sz_traits().get_size();
+      }
+      else{
+         return algo_type::unique(this->header_ptr());
+      }
+   }
 
    //! <b>Effects</b>: Returns the number of elements stored in the container.
    //!
@@ -796,8 +913,7 @@
    void swap(bstree_impl& other)
    {
       //This can throw
-      using std::swap;
-      swap(this->comp(), this->comp());
+      ::boost::adl_move_swap(this->comp(), this->comp());
       //These can't throw
       node_algorithms::swap_tree(this->header_ptr(), node_ptr(other.header_ptr()));
       if(constant_time_size){
@@ -829,10 +945,45 @@
          detail::exception_disposer<bstree_impl, Disposer>
             rollback(*this, disposer);
          node_algorithms::clone
-            (const_node_ptr(src.header_ptr())
-            ,node_ptr(this->header_ptr())
-            ,detail::node_cloner <Cloner,    real_value_traits, AlgoType>(cloner,   &this->get_real_value_traits())
-            ,detail::node_disposer<Disposer, real_value_traits, AlgoType>(disposer, &this->get_real_value_traits()));
+            (src.header_ptr()
+            ,this->header_ptr()
+            ,detail::node_cloner <Cloner,    value_traits, AlgoType>(cloner,   &this->get_value_traits())
+            ,detail::node_disposer<Disposer, value_traits, AlgoType>(disposer, &this->get_value_traits()));
+         this->sz_traits().set_size(src.sz_traits().get_size());
+         this->comp() = src.comp();
+         rollback.release();
+      }
+   }
+
+   //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
+   //!   Cloner should yield to nodes equivalent to the original nodes.
+   //!
+   //! <b>Effects</b>: Erases all the elements from *this
+   //!   calling Disposer::operator()(pointer), clones all the
+   //!   elements from src calling Cloner::operator()(const_reference )
+   //!   and inserts them on *this. Copies the predicate from the source container.
+   //!
+   //!   If cloner throws, all cloned elements are unlinked and disposed
+   //!   calling Disposer::operator()(pointer).
+   //!
+   //! <b>Complexity</b>: Linear to erased plus inserted elements.
+   //!
+   //! <b>Throws</b>: If cloner throws or predicate copy assignment throws. Basic guarantee.
+   //!
+   //! <b>Note</b>: This version can modify the source container, useful to implement
+   //!    move semantics.
+   template <class Cloner, class Disposer>
+   void clone_from(bstree_impl &src, Cloner cloner, Disposer disposer)
+   {
+      this->clear_and_dispose(disposer);
+      if(!src.empty()){
+         detail::exception_disposer<bstree_impl, Disposer>
+            rollback(*this, disposer);
+         node_algorithms::clone
+            (src.header_ptr()
+            ,this->header_ptr()
+            ,detail::node_cloner <Cloner,    value_traits, AlgoType, false>(cloner,   &this->get_value_traits())
+            ,detail::node_disposer<Disposer, value_traits, AlgoType>(disposer, &this->get_value_traits()));
          this->sz_traits().set_size(src.sz_traits().get_size());
          this->comp() = src.comp();
          rollback.release();
@@ -852,13 +1003,13 @@
    //!   No copy-constructors are called.
    iterator insert_equal(reference value)
    {
-      detail::key_nodeptr_comp<value_compare, real_value_traits>
-         key_node_comp(this->comp(), &this->get_real_value_traits());
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      detail::key_nodeptr_comp<value_compare, value_traits>
+         key_node_comp(this->comp(), &this->get_value_traits());
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       iterator ret(node_algorithms::insert_equal_upper_bound
-         (this->header_ptr(), to_insert, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), to_insert, key_node_comp), this->priv_value_traits_ptr());
       this->sz_traits().increment();
       return ret;
    }
@@ -879,13 +1030,13 @@
    //!   No copy-constructors are called.
    iterator insert_equal(const_iterator hint, reference value)
    {
-      detail::key_nodeptr_comp<value_compare, real_value_traits>
-         key_node_comp(this->comp(), &this->get_real_value_traits());
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      detail::key_nodeptr_comp<value_compare, value_traits>
+         key_node_comp(this->comp(), &this->get_value_traits());
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       iterator ret(node_algorithms::insert_equal
-         (this->header_ptr(), hint.pointed_node(), to_insert, key_node_comp), this->real_value_traits_ptr());
+         (this->header_ptr(), hint.pointed_node(), to_insert, key_node_comp), this->priv_value_traits_ptr());
       this->sz_traits().increment();
       return ret;
    }
@@ -1077,13 +1228,13 @@
    //!   erased between the "insert_check" and "insert_commit" calls.
    iterator insert_unique_commit(reference value, const insert_commit_data &commit_data)
    {
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       node_algorithms::insert_unique_commit
                (this->header_ptr(), to_insert, commit_data);
       this->sz_traits().increment();
-      return iterator(to_insert, this->real_value_traits_ptr());
+      return iterator(to_insert, this->priv_value_traits_ptr());
    }
 
    //! <b>Requires</b>: value must be an lvalue, "pos" must be
@@ -1102,12 +1253,12 @@
    //! by advanced users.
    iterator insert_before(const_iterator pos, reference value)
    {
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       this->sz_traits().increment();
       return iterator(node_algorithms::insert_before
-         (this->header_ptr(), pos.pointed_node(), to_insert), this->real_value_traits_ptr());
+         (this->header_ptr(), pos.pointed_node(), to_insert), this->priv_value_traits_ptr());
    }
 
    //! <b>Requires</b>: value must be an lvalue, and it must be no less
@@ -1126,7 +1277,7 @@
    //!   by advanced users.
    void push_back(reference value)
    {
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       this->sz_traits().increment();
@@ -1149,14 +1300,14 @@
    //!   by advanced users.
    void push_front(reference value)
    {
-      node_ptr to_insert(this->get_real_value_traits().to_node_ptr(value));
+      node_ptr to_insert(this->get_value_traits().to_node_ptr(value));
       if(safemode_or_autounlink)
          BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
       this->sz_traits().increment();
       node_algorithms::push_front(this->header_ptr(), to_insert);
    }
 
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.
    //!
@@ -1229,7 +1380,7 @@
 
    //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
    //!
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!   Disposer::operator()(pointer) is called for the removed element.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.
@@ -1243,7 +1394,7 @@
    {
       node_ptr to_erase(i.pointed_node());
       iterator ret(this->erase(i));
-      disposer(this->get_real_value_traits().to_value_ptr(to_erase));
+      disposer(this->get_value_traits().to_value_ptr(to_erase));
       return ret;
    }
 
@@ -1351,36 +1502,59 @@
    void clear_and_dispose(Disposer disposer)
    {
       node_algorithms::clear_and_dispose(this->header_ptr()
-         , detail::node_disposer<Disposer, real_value_traits, AlgoType>(disposer, &this->get_real_value_traits()));
+         , detail::node_disposer<Disposer, value_traits, AlgoType>(disposer, &this->get_value_traits()));
       node_algorithms::init_header(this->header_ptr());
       this->sz_traits().set_size(0);
    }
 
-   #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
-
    //! <b>Effects</b>: Returns the number of contained elements with the given value
    //!
    //! <b>Complexity</b>: Logarithmic to the number of elements contained plus lineal
    //!   to number of objects with the given value.
    //!
-   //! <b>Throws</b>: Nothing.
-   size_type count(const_reference value) const;
+   //! <b>Throws</b>: If `value_compare` throws.
+   size_type count(const_reference value) const
+   {  return size_type(this->count(value, this->comp()));   }
 
    //! <b>Effects</b>: Returns the number of contained elements with the given key
    //!
    //! <b>Complexity</b>: Logarithmic to the number of elements contained plus lineal
    //!   to number of objects with the given key.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
-   size_type count(const KeyType &key, KeyValueCompare comp) const;
+   size_type count(const KeyType &key, KeyValueCompare comp) const
+   {
+      std::pair<const_iterator, const_iterator> ret = this->equal_range(key, comp);
+      size_type n = 0;
+      for(; ret.first != ret.second; ++ret.first){ ++n; }
+      return n;
+   }
+
+   #if !defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+
+   //Add non-const overloads to theoretically const members
+   //as some algorithms have different behavior when non-const versions are used (like splay trees).
+   size_type count(const_reference value)
+   {  return size_type(this->count(value, this->comp()));   }
+
+   template<class KeyType, class KeyValueCompare>
+   size_type count(const KeyType &key, KeyValueCompare comp)
+   {
+      std::pair<const_iterator, const_iterator> ret = this->equal_range(key, comp);
+      size_type n = 0;
+      for(; ret.first != ret.second; ++ret.first){ ++n; }
+      return n;
+   }
+
+   #else //defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 
    //! <b>Effects</b>: Returns an iterator to the first element whose
    //!   key is not less than k or end() if that element does not exist.
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    iterator lower_bound(const_reference value);
 
    //! <b>Effects</b>: Returns an iterator to the first element whose
@@ -1388,7 +1562,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    const_iterator lower_bound(const_reference value) const;
 
    //! <b>Effects</b>: Returns an iterator to the first element whose
@@ -1396,16 +1570,16 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    iterator lower_bound(const KeyType &key, KeyValueCompare comp);
-   
+
    //! <b>Effects</b>: Returns a const iterator to the first element whose
    //!   key is not less than k or end() if that element does not exist.
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    const_iterator lower_bound(const KeyType &key, KeyValueCompare comp) const;
 
@@ -1414,7 +1588,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    iterator upper_bound(const_reference value);
 
    //! <b>Effects</b>: Returns an iterator to the first element whose
@@ -1423,7 +1597,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    iterator upper_bound(const KeyType &key, KeyValueCompare comp);
 
@@ -1432,7 +1606,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    const_iterator upper_bound(const_reference value) const;
 
    //! <b>Effects</b>: Returns an iterator to the first element whose
@@ -1441,7 +1615,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    const_iterator upper_bound(const KeyType &key, KeyValueCompare comp) const;
 
@@ -1450,7 +1624,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    iterator find(const_reference value);
 
    //! <b>Effects</b>: Finds an iterator to the first element whose key is
@@ -1458,7 +1632,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    iterator find(const KeyType &key, KeyValueCompare comp);
 
@@ -1467,7 +1641,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    const_iterator find(const_reference value) const;
 
    //! <b>Effects</b>: Finds a const_iterator to the first element whose key is
@@ -1475,7 +1649,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    const_iterator find(const KeyType &key, KeyValueCompare comp) const;
 
@@ -1485,7 +1659,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    std::pair<iterator,iterator> equal_range(const_reference value);
 
    //! <b>Effects</b>: Finds a range containing all elements whose key is k or
@@ -1494,7 +1668,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    std::pair<iterator,iterator> equal_range(const KeyType &key, KeyValueCompare comp);
 
@@ -1504,7 +1678,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `value_compare` throws.
    std::pair<const_iterator, const_iterator>
       equal_range(const_reference value) const;
 
@@ -1514,7 +1688,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: Nothing.
+   //! <b>Throws</b>: If `comp` throws.
    template<class KeyType, class KeyValueCompare>
    std::pair<const_iterator, const_iterator>
       equal_range(const KeyType &key, KeyValueCompare comp) const;
@@ -1530,7 +1704,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: If the predicate throws.
+   //! <b>Throws</b>: If `value_compare` throws.
    //!
    //! <b>Note</b>: This function can be more efficient than calling upper_bound
    //!   and lower_bound for lower_value and upper_value.
@@ -1541,7 +1715,7 @@
 
    //! <b>Requires</b>: KeyValueCompare is a function object that induces a strict weak
    //!   ordering compatible with the strict weak ordering used to create the
-   //!   the container. 
+   //!   the container.
    //!   'lower_key' must not be greater than 'upper_key' according to 'comp'. If
    //!   'lower_key' == 'upper_key', ('left_closed' || 'right_closed') must be false.
    //!
@@ -1553,7 +1727,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: If "comp" throws.
+   //! <b>Throws</b>: If `comp` throws.
    //!
    //! <b>Note</b>: This function can be more efficient than calling upper_bound
    //!   and lower_bound for lower_key and upper_key.
@@ -1574,7 +1748,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: If the predicate throws.
+   //! <b>Throws</b>: If `value_compare` throws.
    //!
    //! <b>Note</b>: This function can be more efficient than calling upper_bound
    //!   and lower_bound for lower_value and upper_value.
@@ -1585,7 +1759,7 @@
 
    //! <b>Requires</b>: KeyValueCompare is a function object that induces a strict weak
    //!   ordering compatible with the strict weak ordering used to create the
-   //!   the container. 
+   //!   the container.
    //!   'lower_key' must not be greater than 'upper_key' according to 'comp'. If
    //!   'lower_key' == 'upper_key', ('left_closed' || 'right_closed') must be false.
    //!
@@ -1597,7 +1771,7 @@
    //!
    //! <b>Complexity</b>: Logarithmic.
    //!
-   //! <b>Throws</b>: If "comp" throws.
+   //! <b>Throws</b>: If `comp` throws.
    //!
    //! <b>Note</b>: This function can be more efficient than calling upper_bound
    //!   and lower_bound for lower_key and upper_key.
@@ -1691,7 +1865,7 @@
       this->sz_traits().decrement();
       if(safemode_or_autounlink)//If this is commented does not work with normal_link
          node_algorithms::init(to_be_disposed);
-      return this->get_real_value_traits().to_value_ptr(to_be_disposed);
+      return this->get_value_traits().to_value_ptr(to_be_disposed);
    }
 
    #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
@@ -1753,6 +1927,35 @@
          node_algorithms::init(to_remove);
    }
 
+   //! <b>Effects</b>: Asserts the integrity of the container with additional checks provided by the user.
+   //!
+   //! <b>Complexity</b>: Linear time.
+   //!
+   //! <b>Note</b>: The method might not have effect when asserts are turned off (e.g., with NDEBUG).
+   //!   Experimental function, interface might change in future versions.
+   template <class ExtraChecker>
+   void check(ExtraChecker extra_checker) const
+   {
+      typedef detail::key_nodeptr_comp<value_compare, value_traits> nodeptr_comp_t;
+      nodeptr_comp_t nodeptr_comp(this->comp(), &this->get_value_traits());
+      typedef typename get_node_checker<AlgoType, ValueTraits, nodeptr_comp_t, ExtraChecker>::type node_checker_t;
+      typename node_checker_t::return_type checker_return;
+      node_algorithms::check(this->header_ptr(), node_checker_t(nodeptr_comp, extra_checker), checker_return);
+      if (constant_time_size)
+         BOOST_INTRUSIVE_INVARIANT_ASSERT(this->sz_traits().get_size() == checker_return.node_count);
+   }
+
+   //! <b>Effects</b>: Asserts the integrity of the container.
+   //!
+   //! <b>Complexity</b>: Linear time.
+   //!
+   //! <b>Note</b>: The method has no effect when asserts are turned off (e.g., with NDEBUG).
+   //!   Experimental function, interface might change in future versions.
+   void check() const
+   {
+      check(detail::empty_node_checker<ValueTraits>());
+   }
+
    /// @cond
    private:
    template<class Disposer>
@@ -1770,135 +1973,110 @@
       return b.unconst();
    }
    /// @endcond
-
-   private:
-   static bstree_impl &priv_container_from_end_iterator(const const_iterator &end_iterator)
-   {
-      return *static_cast<bstree_impl*>
-         (boost::intrusive::detail::to_raw_pointer(end_iterator.pointed_node()));
-   }
 };
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline bool operator<
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
-{  return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end());  }
+{  return ::boost::intrusive::algo_lexicographical_compare(x.begin(), x.end(), y.begin(), y.end());  }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 bool operator==
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {
-   typedef bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> tree_type;
-   typedef typename tree_type::const_iterator const_iterator;
+   typedef bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> tree_type;
 
    if(tree_type::constant_time_size && x.size() != y.size()){
       return false;
    }
-   const_iterator end1 = x.end();
-   const_iterator i1 = x.begin();
-   const_iterator i2 = y.begin();
-   if(tree_type::constant_time_size){
-      while (i1 != end1 && *i1 == *i2) {
-         ++i1;
-         ++i2;
-      }
-      return i1 == end1;
-   }
-   else{
-      const_iterator end2 = y.end();
-      while (i1 != end1 && i2 != end2 && *i1 == *i2) {
-         ++i1;
-         ++i2;
-      }
-      return i1 == end1 && i2 == end2;
-   }
+   return boost::intrusive::algo_equal(x.cbegin(), x.cend(), y.cbegin(), y.cend());
 }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline bool operator!=
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {  return !(x == y); }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline bool operator>
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {  return y < x;  }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline bool operator<=
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {  return !(y < x);  }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline bool operator>=
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (const bstree_impl<T, Options...> &x, const bstree_impl<T, Options...> &y)
 #else
-( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, const bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {  return !(x < y);  }
 
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 template<class T, class ...Options>
 #else
-template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType>
+template<class ValueTraits, class VoidKeyComp, class SizeType, bool ConstantTimeSize, algo_types AlgoType, typename HeaderHolder>
 #endif
 inline void swap
 #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
 (bstree_impl<T, Options...> &x, bstree_impl<T, Options...> &y)
 #else
-( bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &x
-, bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType> &y)
+( bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &x
+, bstree_impl<ValueTraits, VoidKeyComp, SizeType, ConstantTimeSize, AlgoType, HeaderHolder> &y)
 #endif
 {  x.swap(y);  }
 
@@ -1908,7 +2086,8 @@
 template<class T, class ...Options>
 #else
 template<class T, class O1 = void, class O2 = void
-                , class O3 = void, class O4 = void>
+                , class O3 = void, class O4 = void
+                , class O5 = void>
 #endif
 struct make_bstree
 {
@@ -1916,7 +2095,7 @@
    typedef typename pack_options
       < bstree_defaults,
       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
-      O1, O2, O3, O4
+      O1, O2, O3, O4, O5
       #else
       Options...
       #endif
@@ -1931,6 +2110,7 @@
          , typename packed_options::size_type
          , packed_options::constant_time_size
          , BsTreeAlgorithms
+         , typename packed_options::header_holder_type
          > implementation_defined;
    /// @endcond
    typedef implementation_defined type;
@@ -1940,14 +2120,14 @@
 #ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
 
 #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
-template<class T, class O1, class O2, class O3, class O4>
+template<class T, class O1, class O2, class O3, class O4, class O5>
 #else
 template<class T, class ...Options>
 #endif
 class bstree
    :  public make_bstree<T,
       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
-      O1, O2, O3, O4
+      O1, O2, O3, O4, O5
       #else
       Options...
       #endif
@@ -1956,7 +2136,7 @@
    typedef typename make_bstree
       <T,
       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
-      O1, O2, O3, O4
+      O1, O2, O3, O4, O5
       #else
       Options...
       #endif
@@ -1966,12 +2146,11 @@
    public:
    typedef typename Base::value_compare      value_compare;
    typedef typename Base::value_traits       value_traits;
-   typedef typename Base::real_value_traits  real_value_traits;
    typedef typename Base::iterator           iterator;
    typedef typename Base::const_iterator     const_iterator;
 
    //Assert if passed value traits are compatible with the type
-   BOOST_STATIC_ASSERT((detail::is_same<typename real_value_traits::value_type, T>::value));
+   BOOST_STATIC_ASSERT((detail::is_same<typename value_traits::value_type, T>::value));
 
    bstree( const value_compare &cmp = value_compare()
          , const value_traits &v_traits = value_traits())
@@ -1986,11 +2165,11 @@
    {}
 
    bstree(BOOST_RV_REF(bstree) x)
-      :  Base(::boost::move(static_cast<Base&>(x)))
+      :  Base(BOOST_MOVE_BASE(Base, x))
    {}
 
    bstree& operator=(BOOST_RV_REF(bstree) x)
-   {  return static_cast<bstree &>(this->Base::operator=(::boost::move(static_cast<Base&>(x))));  }
+   {  return static_cast<bstree &>(this->Base::operator=(BOOST_MOVE_BASE(Base, x)));  }
 
    static bstree &container_from_end_iterator(iterator end_iterator)
    {  return static_cast<bstree &>(Base::container_from_end_iterator(end_iterator));   }