Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 1687 insertions, 0 deletions

diff --git a/boost/intrusive/rbtree.hpp b/boost/intrusive/rbtree.hpp
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+++ b/boost/intrusive/rbtree.hpp
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+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga  2006-2009
+//
+// 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/intrusive for documentation.
+//
+/////////////////////////////////////////////////////////////////////////////
+#ifndef BOOST_INTRUSIVE_RBTREE_HPP
+#define BOOST_INTRUSIVE_RBTREE_HPP
+
+#include <boost/intrusive/detail/config_begin.hpp>
+#include <algorithm>
+#include <cstddef>
+#include <functional>
+#include <iterator>
+#include <utility>
+
+#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/detail/rbtree_node.hpp>
+#include <boost/intrusive/detail/tree_node.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/rbtree_algorithms.hpp>
+#include <boost/intrusive/link_mode.hpp>
+#include <boost/move/move.hpp>
+
+namespace boost {
+namespace intrusive {
+
+/// @cond
+
+template <class ValueTraits, class Compare, class SizeType, bool ConstantTimeSize>
+struct setopt
+{
+   typedef ValueTraits  value_traits;
+   typedef Compare      compare;
+   typedef SizeType     size_type;
+   static const bool constant_time_size = ConstantTimeSize;
+};
+
+template <class T>
+struct set_defaults
+   :  pack_options
+      < none
+      , base_hook<detail::default_set_hook>
+      , constant_time_size<true>
+      , size_type<std::size_t>
+      , compare<std::less<T> >
+      >::type
+{};
+
+/// @endcond
+
+//! The class template rbtree is an intrusive red-black tree container, that
+//! is used to construct intrusive set and multiset containers. The no-throw 
+//! guarantee holds only, if the value_compare object 
+//! doesn't throw.
+//!
+//! The template parameter \c T is the type to be managed by the container.
+//! The user can specify additional options and if no options are provided
+//! default options are used.
+//!
+//! The container supports the following options:
+//! \c base_hook<>/member_hook<>/value_traits<>,
+//! \c constant_time_size<>, \c size_type<> and
+//! \c compare<>.
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+class rbtree_impl
+   :  private detail::clear_on_destructor_base<rbtree_impl<Config> >
+{
+   template<class C> friend class detail::clear_on_destructor_base;
+   public:
+   typedef typename Config::value_traits                             value_traits;
+   /// @cond
+   static const bool external_value_traits =
+      detail::external_value_traits_is_true<value_traits>::value;
+   typedef typename detail::eval_if_c
+      < external_value_traits
+      , detail::eval_value_traits<value_traits>
+      , detail::identity<value_traits>
+      >::type                                                        real_value_traits;
+   /// @endcond
+   typedef typename real_value_traits::pointer                       pointer;
+   typedef typename real_value_traits::const_pointer                 const_pointer;
+
+   typedef typename pointer_traits<pointer>::element_type            value_type;
+   typedef value_type                                                key_type;
+   typedef typename pointer_traits<pointer>::reference               reference;
+   typedef typename pointer_traits<const_pointer>::reference         const_reference;
+   typedef typename pointer_traits<const_pointer>::difference_type   difference_type;
+   typedef typename Config::size_type                                size_type;
+   typedef typename Config::compare                                  value_compare;
+   typedef value_compare                                             key_compare;
+   typedef tree_iterator<rbtree_impl, false>                         iterator;
+   typedef tree_iterator<rbtree_impl, true>                          const_iterator;
+   typedef boost::intrusive::detail::reverse_iterator<iterator>      reverse_iterator;
+   typedef boost::intrusive::detail::reverse_iterator<const_iterator>const_reverse_iterator;
+   typedef typename real_value_traits::node_traits                   node_traits;
+   typedef typename node_traits::node                                node;
+   typedef typename node_traits::node_ptr                            node_ptr;
+   typedef typename node_traits::const_node_ptr                      const_node_ptr;
+   typedef rbtree_algorithms<node_traits>                            node_algorithms;
+
+   static const bool constant_time_size = Config::constant_time_size;
+   static const bool stateful_value_traits = detail::is_stateful_value_traits<real_value_traits>::value;
+   /// @cond
+   private:
+   typedef detail::size_holder<constant_time_size, size_type>        size_traits;
+
+   //noncopyable
+   BOOST_MOVABLE_BUT_NOT_COPYABLE(rbtree_impl)
+
+   enum { safemode_or_autounlink  = 
+            (int)real_value_traits::link_mode == (int)auto_unlink   ||
+            (int)real_value_traits::link_mode == (int)safe_link     };
+
+   //Constant-time size is incompatible with auto-unlink hooks!
+   BOOST_STATIC_ASSERT(!(constant_time_size && ((int)real_value_traits::link_mode == (int)auto_unlink)));
+
+   struct header_plus_size : public size_traits
+   {  node header_;  };
+
+   struct node_plus_pred_t : public detail::ebo_functor_holder<value_compare>
+   {
+      node_plus_pred_t(const value_compare &comp)
+         :  detail::ebo_functor_holder<value_compare>(comp)
+      {}
+      header_plus_size header_plus_size_;
+   };
+
+   struct data_t : public rbtree_impl::value_traits
+   {
+      typedef typename rbtree_impl::value_traits value_traits;
+      data_t(const value_compare & comp, const value_traits &val_traits)
+         :  value_traits(val_traits), node_plus_pred_(comp)
+      {}
+      node_plus_pred_t node_plus_pred_;
+   } data_;
+
+   const value_compare &priv_comp() const
+   {  return data_.node_plus_pred_.get();  }
+
+   value_compare &priv_comp()
+   {  return data_.node_plus_pred_.get();  }
+
+   const value_traits &priv_value_traits() const
+   {  return data_;  }
+
+   value_traits &priv_value_traits()
+   {  return data_;  }
+
+   node_ptr priv_header_ptr()
+   {  return pointer_traits<node_ptr>::pointer_to(data_.node_plus_pred_.header_plus_size_.header_);  }
+
+   const_node_ptr priv_header_ptr() const
+   {  return pointer_traits<const_node_ptr>::pointer_to(data_.node_plus_pred_.header_plus_size_.header_);  }
+
+   static node_ptr uncast(const const_node_ptr & ptr)
+   {  return pointer_traits<node_ptr>::const_cast_from(ptr);  }
+
+   size_traits &priv_size_traits()
+   {  return data_.node_plus_pred_.header_plus_size_;  }
+
+   const size_traits &priv_size_traits() const
+   {  return data_.node_plus_pred_.header_plus_size_;  }
+
+   const real_value_traits &get_real_value_traits(detail::bool_<false>) const
+   {  return data_;  }
+
+   const real_value_traits &get_real_value_traits(detail::bool_<true>) const
+   {  return data_.get_value_traits(*this);  }
+
+   real_value_traits &get_real_value_traits(detail::bool_<false>)
+   {  return data_;  }
+
+   real_value_traits &get_real_value_traits(detail::bool_<true>)
+   {  return data_.get_value_traits(*this);  }
+
+   protected:
+   value_compare &prot_comp()
+   {  return priv_comp(); }
+
+   const node &prot_header_node() const
+   {  return data_.node_plus_pred_.header_plus_size_.header_; }
+
+   node &prot_header_node()
+   {  return data_.node_plus_pred_.header_plus_size_.header_; }
+
+   void prot_set_size(size_type s)
+   {  this->priv_size_traits().set_size(s);  }
+
+   /// @endcond
+
+   public:
+
+   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 node_algorithms::insert_commit_data insert_commit_data;
+
+   //! <b>Effects</b>: Constructs an empty tree. 
+   //!   
+   //! <b>Complexity</b>: Constant. 
+   //! 
+   //! <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.
+   rbtree_impl( const value_compare &cmp = value_compare()
+              , const value_traits &v_traits = value_traits()) 
+      :  data_(cmp, v_traits)
+   {  
+      node_algorithms::init_header(this->priv_header_ptr());  
+      this->priv_size_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.
+   //!
+   //! <b>Effects</b>: Constructs an empty tree and inserts elements from
+   //!   [b, e).
+   //!
+   //! <b>Complexity</b>: Linear in N if [b, e) is already sorted using
+   //!   comp and otherwise N * log N, where N is the distance between first and last.
+   //! 
+   //! <b>Throws</b>: If value_traits::node_traits::node
+   //!   constructor throws (this does not happen with predefined Boost.Intrusive hooks)
+   //!   or the copy constructor/operator() of the value_compare object throws. Basic guarantee.
+   template<class Iterator>
+   rbtree_impl( bool unique, Iterator b, Iterator e
+              , const value_compare &cmp     = value_compare()
+              , const value_traits &v_traits = value_traits())
+      : data_(cmp, v_traits)
+   {
+      node_algorithms::init_header(this->priv_header_ptr());
+      this->priv_size_traits().set_size(size_type(0));
+      if(unique)
+         this->insert_unique(b, e);
+      else
+         this->insert_equal(b, e);
+   }
+
+   //! <b>Effects</b>: to-do
+   //!   
+   rbtree_impl(BOOST_RV_REF(rbtree_impl) x)
+      : data_(::boost::move(x.priv_comp()), ::boost::move(x.priv_value_traits()))
+   {
+      node_algorithms::init_header(this->priv_header_ptr());  
+      this->priv_size_traits().set_size(size_type(0));
+      this->swap(x);
+   }
+
+   //! <b>Effects</b>: to-do
+   //!   
+   rbtree_impl& operator=(BOOST_RV_REF(rbtree_impl) x) 
+   {  this->swap(x); return *this;  }
+
+   //! <b>Effects</b>: Detaches all elements from this. The objects in the set 
+   //!   are not deleted (i.e. no destructors are called), but the nodes according to 
+   //!   the value_traits template parameter are reinitialized and thus can be reused. 
+   //! 
+   //! <b>Complexity</b>: Linear to elements contained in *this. 
+   //! 
+   //! <b>Throws</b>: Nothing.
+   ~rbtree_impl() 
+   {}
+
+   //! <b>Effects</b>: Returns an iterator pointing to the beginning of the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   iterator begin()
+   {  return iterator (node_traits::get_left(this->priv_header_ptr()), this);   }
+
+   //! <b>Effects</b>: Returns a const_iterator pointing to the beginning of the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator begin() const
+   {  return cbegin();   }
+
+   //! <b>Effects</b>: Returns a const_iterator pointing to the beginning of the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator cbegin() const
+   {  return const_iterator (node_traits::get_left(this->priv_header_ptr()), this);   }
+
+   //! <b>Effects</b>: Returns an iterator pointing to the end of the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   iterator end()
+   {  return iterator (this->priv_header_ptr(), this);  }
+
+   //! <b>Effects</b>: Returns a const_iterator pointing to the end of the tree.
+   //!
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator end() const
+   {  return cend();  }
+
+   //! <b>Effects</b>: Returns a const_iterator pointing to the end of the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator cend() const
+   {  return const_iterator (uncast(this->priv_header_ptr()), this);  }
+
+   //! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning of the
+   //!    reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   reverse_iterator rbegin()
+   {  return reverse_iterator(end());  }
+
+   //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
+   //!    of the reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_reverse_iterator rbegin() const
+   {  return const_reverse_iterator(end());  }
+
+   //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
+   //!    of the reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_reverse_iterator crbegin() const
+   {  return const_reverse_iterator(end());  }
+
+   //! <b>Effects</b>: Returns a reverse_iterator pointing to the end
+   //!    of the reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   reverse_iterator rend()
+   {  return reverse_iterator(begin());   }
+
+   //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
+   //!    of the reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_reverse_iterator rend() const
+   {  return const_reverse_iterator(begin());   }
+
+   //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
+   //!    of the reversed tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_reverse_iterator crend() const
+   {  return const_reverse_iterator(begin());   }
+
+   //! <b>Precondition</b>: end_iterator must be a valid end iterator
+   //!   of rbtree.
+   //! 
+   //! <b>Effects</b>: Returns a const reference to the rbtree associated to the end iterator
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   static rbtree_impl &container_from_end_iterator(iterator end_iterator)
+   {  return priv_container_from_end_iterator(end_iterator);   }
+
+   //! <b>Precondition</b>: end_iterator must be a valid end const_iterator
+   //!   of rbtree.
+   //! 
+   //! <b>Effects</b>: Returns a const reference to the rbtree associated to the iterator
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   static const rbtree_impl &container_from_end_iterator(const_iterator end_iterator)
+   {  return priv_container_from_end_iterator(end_iterator);   }
+
+   //! <b>Precondition</b>: it must be a valid iterator
+   //!   of rbtree.
+   //! 
+   //! <b>Effects</b>: Returns a const reference to the tree associated to the iterator
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   static rbtree_impl &container_from_iterator(iterator it)
+   {  return priv_container_from_iterator(it);   }
+
+   //! <b>Precondition</b>: it must be a valid end const_iterator
+   //!   of rbtree.
+   //! 
+   //! <b>Effects</b>: Returns a const reference to the tree associated to the end iterator
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   static const rbtree_impl &container_from_iterator(const_iterator it)
+   {  return priv_container_from_iterator(it);   }
+
+   //! <b>Effects</b>: Returns the value_compare object used by the tree.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: If value_compare copy-constructor throws.
+   value_compare value_comp() const
+   {  return priv_comp();   }
+
+   //! <b>Effects</b>: Returns true if the container is empty.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   bool empty() const
+   {  return node_algorithms::unique(this->priv_header_ptr());   }
+
+   //! <b>Effects</b>: Returns the number of elements stored in the tree.
+   //! 
+   //! <b>Complexity</b>: Linear to elements contained in *this
+   //!   if constant-time size option is disabled. Constant time otherwise.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   size_type size() const
+   {
+      if(constant_time_size)
+         return this->priv_size_traits().get_size();
+      else{
+         return (size_type)node_algorithms::size(this->priv_header_ptr());
+      }
+   }
+
+   //! <b>Effects</b>: Swaps the contents of two rbtrees.
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: If the comparison functor's swap call throws.
+   void swap(rbtree_impl& other)
+   {
+      //This can throw
+      using std::swap;
+      swap(priv_comp(), priv_comp());
+      //These can't throw
+      node_algorithms::swap_tree(this->priv_header_ptr(), node_ptr(other.priv_header_ptr()));
+      if(constant_time_size){
+         size_type backup = this->priv_size_traits().get_size();
+         this->priv_size_traits().set_size(other.priv_size_traits().get_size());
+         other.priv_size_traits().set_size(backup);
+      }
+   }
+
+   //! <b>Requires</b>: value must be an lvalue
+   //! 
+   //! <b>Effects</b>: Inserts value into the tree before the upper bound.
+   //! 
+   //! <b>Complexity</b>: Average complexity for insert element is at
+   //!   most logarithmic.
+   //! 
+   //! <b>Throws</b>: If the internal value_compare ordering function throws. Strong guarantee.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   iterator insert_equal(reference value)
+   {
+      detail::key_nodeptr_comp<value_compare, rbtree_impl>
+         key_node_comp(priv_comp(), this);
+      node_ptr to_insert(get_real_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->priv_header_ptr(), to_insert, key_node_comp), this);
+      this->priv_size_traits().increment();
+      return ret;
+   }
+
+   //! <b>Requires</b>: value must be an lvalue, and "hint" must be
+   //!   a valid iterator.
+   //! 
+   //! <b>Effects</b>: Inserts x into the tree, using "hint" as a hint to
+   //!   where it will be inserted. If "hint" is the upper_bound
+   //!   the insertion takes constant time (two comparisons in the worst case)
+   //! 
+   //! <b>Complexity</b>: Logarithmic in general, but it is amortized
+   //!   constant time if t is inserted immediately before hint.
+   //! 
+   //! <b>Throws</b>: If the internal value_compare ordering function throws. Strong guarantee.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   iterator insert_equal(const_iterator hint, reference value)
+   {
+      detail::key_nodeptr_comp<value_compare, rbtree_impl>
+         key_node_comp(priv_comp(), this);
+      node_ptr to_insert(get_real_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->priv_header_ptr(), hint.pointed_node(), to_insert, key_node_comp), this);
+      this->priv_size_traits().increment();
+      return ret;
+   }
+
+   //! <b>Requires</b>: Dereferencing iterator must yield an lvalue 
+   //!   of type value_type.
+   //! 
+   //! <b>Effects</b>: Inserts a each element of a range into the tree
+   //!   before the upper bound of the key of each element.
+   //! 
+   //! <b>Complexity</b>: Insert range is in general O(N * log(N)), where N is the
+   //!   size of the range. However, it is linear in N if the range is already sorted
+   //!   by value_comp().
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   template<class Iterator>
+   void insert_equal(Iterator b, Iterator e)
+   {
+      iterator iend(this->end());
+      for (; b != e; ++b)
+         this->insert_equal(iend, *b);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue
+   //! 
+   //! <b>Effects</b>: Inserts value into the tree if the value
+   //!   is not already present.
+   //! 
+   //! <b>Complexity</b>: Average complexity for insert element is at
+   //!   most logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   std::pair<iterator, bool> insert_unique(reference value)
+   {
+      insert_commit_data commit_data;
+      std::pair<iterator, bool> ret = insert_unique_check(value, priv_comp(), commit_data);
+      if(!ret.second)
+         return ret;
+      return std::pair<iterator, bool> (insert_unique_commit(value, commit_data), true);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue, and "hint" must be
+   //!   a valid iterator
+   //! 
+   //! <b>Effects</b>: Tries to insert x into the tree, using "hint" as a hint
+   //!   to where it will be inserted.
+   //! 
+   //! <b>Complexity</b>: Logarithmic in general, but it is amortized
+   //!   constant time (two comparisons in the worst case)
+   //!   if t is inserted immediately before hint.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   iterator insert_unique(const_iterator hint, reference value)
+   {
+      insert_commit_data commit_data;
+      std::pair<iterator, bool> ret = insert_unique_check(hint, value, priv_comp(), commit_data);
+      if(!ret.second)
+         return ret.first;
+      return insert_unique_commit(value, commit_data);
+   }
+
+   //! <b>Requires</b>: Dereferencing iterator must yield an lvalue 
+   //!   of type value_type.
+   //! 
+   //! <b>Effects</b>: Tries to insert each element of a range into the tree.
+   //! 
+   //! <b>Complexity</b>: Insert range is in general O(N * log(N)), where N is the 
+   //!   size of the range. However, it is linear in N if the range is already sorted 
+   //!   by value_comp().
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Does not affect the validity of iterators and references.
+   //!   No copy-constructors are called.
+   template<class Iterator>
+   void insert_unique(Iterator b, Iterator e)
+   {
+      if(this->empty()){
+         iterator iend(this->end());
+         for (; b != e; ++b)
+            this->insert_unique(iend, *b);
+      }
+      else{
+         for (; b != e; ++b)
+            this->insert_unique(*b);
+      }
+   }
+
+   //! <b>Requires</b>: key_value_comp must be a comparison function that induces 
+   //!   the same strict weak ordering as value_compare. The difference is that
+   //!   key_value_comp compares an arbitrary key with the contained values.
+   //! 
+   //! <b>Effects</b>: Checks if a value can be inserted in the container, using
+   //!   a user provided key instead of the value itself.
+   //!
+   //! <b>Returns</b>: If there is an equivalent value
+   //!   returns a pair containing an iterator to the already present value
+   //!   and false. If the value can be inserted returns true in the returned
+   //!   pair boolean and fills "commit_data" that is meant to be used with
+   //!   the "insert_commit" function.
+   //! 
+   //! <b>Complexity</b>: Average complexity is at most logarithmic.
+   //!
+   //! <b>Throws</b>: If the key_value_comp ordering function throws. Strong guarantee.
+   //! 
+   //! <b>Notes</b>: This function is used to improve performance when constructing
+   //!   a value_type is expensive: if there is an equivalent value
+   //!   the constructed object must be discarded. Many times, the part of the
+   //!   node that is used to impose the order is much cheaper to construct
+   //!   than the value_type and this function offers the possibility to use that 
+   //!   part to check if the insertion will be successful.
+   //!
+   //!   If the check is successful, the user can construct the value_type and use
+   //!   "insert_commit" to insert the object in constant-time. This gives a total
+   //!   logarithmic complexity to the insertion: check(O(log(N)) + commit(O(1)).
+   //!
+   //!   "commit_data" remains valid for a subsequent "insert_commit" only if no more
+   //!   objects are inserted or erased from the container.
+   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, rbtree_impl>
+         comp(key_value_comp, this);
+      std::pair<node_ptr, bool> ret = 
+         (node_algorithms::insert_unique_check
+            (this->priv_header_ptr(), key, comp, commit_data));
+      return std::pair<iterator, bool>(iterator(ret.first, this), ret.second);
+   }
+
+   //! <b>Requires</b>: key_value_comp must be a comparison function that induces 
+   //!   the same strict weak ordering as value_compare. The difference is that
+   //!   key_value_comp compares an arbitrary key with the contained values.
+   //! 
+   //! <b>Effects</b>: Checks if a value can be inserted in the container, using
+   //!   a user provided key instead of the value itself, using "hint" 
+   //!   as a hint to where it will be inserted.
+   //!
+   //! <b>Returns</b>: If there is an equivalent value
+   //!   returns a pair containing an iterator to the already present value
+   //!   and false. If the value can be inserted returns true in the returned
+   //!   pair boolean and fills "commit_data" that is meant to be used with
+   //!   the "insert_commit" function.
+   //! 
+   //! <b>Complexity</b>: Logarithmic in general, but it's amortized
+   //!   constant time if t is inserted immediately before hint.
+   //!
+   //! <b>Throws</b>: If the key_value_comp ordering function throws. Strong guarantee.
+   //! 
+   //! <b>Notes</b>: This function is used to improve performance when constructing
+   //!   a value_type is expensive: if there is an equivalent value
+   //!   the constructed object must be discarded. Many times, the part of the
+   //!   constructing that is used to impose the order is much cheaper to construct
+   //!   than the value_type and this function offers the possibility to use that key 
+   //!   to check if the insertion will be successful.
+   //!
+   //!   If the check is successful, the user can construct the value_type and use
+   //!   "insert_commit" to insert the object in constant-time. This can give a total
+   //!   constant-time complexity to the insertion: check(O(1)) + commit(O(1)).
+   //!   
+   //!   "commit_data" remains valid for a subsequent "insert_commit" only if no more
+   //!   objects are inserted or erased from the container.
+   template<class KeyType, class KeyValueCompare>
+   std::pair<iterator, bool> insert_unique_check
+      (const_iterator hint, const KeyType &key
+      ,KeyValueCompare key_value_comp, insert_commit_data &commit_data)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         comp(key_value_comp, this);
+      std::pair<node_ptr, bool> ret = 
+         (node_algorithms::insert_unique_check
+            (this->priv_header_ptr(), hint.pointed_node(), key, comp, commit_data));
+      return std::pair<iterator, bool>(iterator(ret.first, this), ret.second);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue of type value_type. commit_data
+   //!   must have been obtained from a previous call to "insert_check".
+   //!   No objects should have been inserted or erased from the container between
+   //!   the "insert_check" that filled "commit_data" and the call to "insert_commit".
+   //! 
+   //! <b>Effects</b>: Inserts the value in the avl_set using the information obtained
+   //!   from the "commit_data" that a previous "insert_check" filled.
+   //!
+   //! <b>Returns</b>: An iterator to the newly inserted object.
+   //! 
+   //! <b>Complexity</b>: Constant time.
+   //!
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Notes</b>: This function has only sense if a "insert_check" has been
+   //!   previously executed to fill "commit_data". No value should be inserted or
+   //!   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(get_real_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->priv_header_ptr(), to_insert, commit_data);
+      this->priv_size_traits().increment();
+      return iterator(to_insert, this);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue, "pos" must be
+   //!   a valid iterator (or end) and must be the succesor of value
+   //!   once inserted according to the predicate
+   //!
+   //! <b>Effects</b>: Inserts x into the tree before "pos".
+   //! 
+   //! <b>Complexity</b>: Constant time.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This function does not check preconditions so if "pos" is not
+   //! the successor of "value" tree ordering invariant will be broken.
+   //! This is a low-level function to be used only for performance reasons
+   //! by advanced users.
+   iterator insert_before(const_iterator pos, reference value)
+   {
+      node_ptr to_insert(get_real_value_traits().to_node_ptr(value));
+      if(safemode_or_autounlink)
+         BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
+      this->priv_size_traits().increment();
+      return iterator(node_algorithms::insert_before
+         (this->priv_header_ptr(), pos.pointed_node(), to_insert), this);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue, and it must be no less
+   //!   than the greatest inserted key
+   //!
+   //! <b>Effects</b>: Inserts x into the tree in the last position.
+   //! 
+   //! <b>Complexity</b>: Constant time.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This function does not check preconditions so if value is
+   //!   less than the greatest inserted key tree ordering invariant will be broken.
+   //!   This function is slightly more efficient than using "insert_before".
+   //!   This is a low-level function to be used only for performance reasons
+   //!   by advanced users.
+   void push_back(reference value)
+   {
+      node_ptr to_insert(get_real_value_traits().to_node_ptr(value));
+      if(safemode_or_autounlink)
+         BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
+      this->priv_size_traits().increment();
+      node_algorithms::push_back(this->priv_header_ptr(), to_insert);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue, and it must be no greater
+   //!   than the minimum inserted key
+   //!
+   //! <b>Effects</b>: Inserts x into the tree in the first position.
+   //! 
+   //! <b>Complexity</b>: Constant time.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This function does not check preconditions so if value is
+   //!   greater than the minimum inserted key tree ordering invariant will be broken.
+   //!   This function is slightly more efficient than using "insert_before".
+   //!   This is a low-level function to be used only for performance reasons
+   //!   by advanced users.
+   void push_front(reference value)
+   {
+      node_ptr to_insert(get_real_value_traits().to_node_ptr(value));
+      if(safemode_or_autounlink)
+         BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(to_insert));
+      this->priv_size_traits().increment();
+      node_algorithms::push_front(this->priv_header_ptr(), to_insert);
+   }
+
+   //! <b>Effects</b>: Erases the element pointed to by pos. 
+   //! 
+   //! <b>Complexity</b>: Average complexity for erase element is constant time. 
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   iterator erase(const_iterator i)
+   {
+      const_iterator ret(i);
+      ++ret;
+      node_ptr to_erase(i.pointed_node());
+      if(safemode_or_autounlink)
+         BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(!node_algorithms::unique(to_erase));
+      node_algorithms::erase(this->priv_header_ptr(), to_erase);
+      this->priv_size_traits().decrement();
+      if(safemode_or_autounlink)
+         node_algorithms::init(to_erase);
+      return ret.unconst();
+   }
+
+   //! <b>Effects</b>: Erases the range pointed to by b end e. 
+   //! 
+   //! <b>Complexity</b>: Average complexity for erase range is at most 
+   //!   O(log(size() + N)), where N is the number of elements in the range.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   iterator erase(const_iterator b, const_iterator e)
+   {  size_type n;   return private_erase(b, e, n);   }
+
+   //! <b>Effects</b>: Erases all the elements with the given value.
+   //! 
+   //! <b>Returns</b>: The number of erased elements.
+   //! 
+   //! <b>Complexity</b>: O(log(size() + N).
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   size_type erase(const_reference value)
+   {  return this->erase(value, priv_comp());   }
+
+   //! <b>Effects</b>: Erases all the elements with the given key.
+   //!   according to the comparison functor "comp".
+   //!
+   //! <b>Returns</b>: The number of erased elements.
+   //! 
+   //! <b>Complexity</b>: O(log(size() + N).
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   template<class KeyType, class KeyValueCompare>
+   size_type erase(const KeyType& key, KeyValueCompare comp
+                  /// @cond
+                  , typename detail::enable_if_c<!detail::is_convertible<KeyValueCompare, const_iterator>::value >::type * = 0
+                  /// @endcond
+                  )
+   {
+      std::pair<iterator,iterator> p = this->equal_range(key, comp);
+      size_type n;
+      private_erase(p.first, p.second, n);
+      return n;
+   }
+
+   //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
+   //!
+   //! <b>Effects</b>: Erases the element pointed to by pos. 
+   //!   Disposer::operator()(pointer) is called for the removed element.
+   //! 
+   //! <b>Complexity</b>: Average complexity for erase element is constant time. 
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators 
+   //!    to the erased elements.
+   template<class Disposer>
+   iterator erase_and_dispose(const_iterator i, Disposer disposer)
+   {
+      node_ptr to_erase(i.pointed_node());
+      iterator ret(this->erase(i));
+      disposer(get_real_value_traits().to_value_ptr(to_erase));
+      return ret;
+   }
+
+   #if !defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+   template<class Disposer>
+   iterator erase_and_dispose(iterator i, Disposer disposer)
+   {  return this->erase_and_dispose(const_iterator(i), disposer);   }
+   #endif
+
+   //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
+   //!
+   //! <b>Effects</b>: Erases all the elements with the given value.
+   //!   Disposer::operator()(pointer) is called for the removed elements.
+   //! 
+   //! <b>Returns</b>: The number of erased elements.
+   //! 
+   //! <b>Complexity</b>: O(log(size() + N).
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   template<class Disposer>
+   size_type erase_and_dispose(const_reference value, Disposer disposer)
+   {
+      std::pair<iterator,iterator> p = this->equal_range(value);
+      size_type n;
+      private_erase(p.first, p.second, n, disposer);
+      return n;
+   }
+
+   //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
+   //!
+   //! <b>Effects</b>: Erases the range pointed to by b end e.
+   //!   Disposer::operator()(pointer) is called for the removed elements.
+   //! 
+   //! <b>Complexity</b>: Average complexity for erase range is at most 
+   //!   O(log(size() + N)), where N is the number of elements in the range.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators
+   //!    to the erased elements.
+   template<class Disposer>
+   iterator erase_and_dispose(const_iterator b, const_iterator e, Disposer disposer)
+   {  size_type n;   return private_erase(b, e, n, disposer);   }
+
+   //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
+   //!
+   //! <b>Effects</b>: Erases all the elements with the given key.
+   //!   according to the comparison functor "comp".
+   //!   Disposer::operator()(pointer) is called for the removed elements.
+   //!
+   //! <b>Returns</b>: The number of erased elements.
+   //! 
+   //! <b>Complexity</b>: O(log(size() + N).
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators
+   //!    to the erased elements.
+   template<class KeyType, class KeyValueCompare, class Disposer>
+   size_type erase_and_dispose(const KeyType& key, KeyValueCompare comp, Disposer disposer
+                  /// @cond
+                  , typename detail::enable_if_c<!detail::is_convertible<KeyValueCompare, const_iterator>::value >::type * = 0
+                  /// @endcond
+                  )
+   {
+      std::pair<iterator,iterator> p = this->equal_range(key, comp);
+      size_type n;
+      private_erase(p.first, p.second, n, disposer);
+      return n;
+   }
+
+   //! <b>Effects</b>: Erases all of the elements. 
+   //! 
+   //! <b>Complexity</b>: Linear to the number of elements on the container.
+   //!   if it's a safe-mode or auto-unlink value_type. Constant time otherwise.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. No destructors are called.
+   void clear()
+   {
+      if(safemode_or_autounlink){
+         this->clear_and_dispose(detail::null_disposer());
+      }
+      else{
+         node_algorithms::init_header(this->priv_header_ptr());
+         this->priv_size_traits().set_size(0);
+      }
+   }
+
+   //! <b>Effects</b>: Erases all of the elements calling disposer(p) for
+   //!   each node to be erased.
+   //! <b>Complexity</b>: Average complexity for is at most O(log(size() + N)),
+   //!   where N is the number of elements in the container.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: Invalidates the iterators (but not the references)
+   //!    to the erased elements. Calls N times to disposer functor.
+   template<class Disposer>
+   void clear_and_dispose(Disposer disposer)
+   {
+      node_algorithms::clear_and_dispose(this->priv_header_ptr()
+         , detail::node_disposer<Disposer, rbtree_impl>(disposer, this));
+      node_algorithms::init_header(this->priv_header_ptr());
+      this->priv_size_traits().set_size(0);
+   }
+
+   //! <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
+   {  return this->count(value, priv_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.
+   template<class KeyType, class KeyValueCompare>
+   size_type count(const KeyType &key, KeyValueCompare comp) const
+   {
+      std::pair<const_iterator, const_iterator> ret = this->equal_range(key, comp);
+      return std::distance(ret.first, ret.second);
+   }
+
+   //! <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.
+   iterator lower_bound(const_reference value)
+   {  return this->lower_bound(value, priv_comp());   }
+
+   //! <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.
+   const_iterator lower_bound(const_reference value) const
+   {  return this->lower_bound(value, priv_comp());   }
+
+   //! <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.
+   template<class KeyType, class KeyValueCompare>
+   iterator lower_bound(const KeyType &key, KeyValueCompare comp)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return iterator(node_algorithms::lower_bound
+         (this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <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.
+   template<class KeyType, class KeyValueCompare>
+   const_iterator lower_bound(const KeyType &key, KeyValueCompare comp) const
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return const_iterator(node_algorithms::lower_bound
+         (this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <b>Effects</b>: Returns an iterator to the first element whose
+   //!   key is greater than k or end() if that element does not exist.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   iterator upper_bound(const_reference value)
+   {  return this->upper_bound(value, priv_comp());   }
+
+   //! <b>Effects</b>: Returns an iterator to the first element whose
+   //!   key is greater than k according to comp or end() if that element
+   //!   does not exist.
+   //!
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   iterator upper_bound(const KeyType &key, KeyValueCompare comp)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return iterator(node_algorithms::upper_bound
+         (this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <b>Effects</b>: Returns an iterator to the first element whose
+   //!   key is greater than k or end() if that element does not exist.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator upper_bound(const_reference value) const
+   {  return this->upper_bound(value, priv_comp());   }
+
+   //! <b>Effects</b>: Returns an iterator to the first element whose
+   //!   key is greater than k according to comp or end() if that element
+   //!   does not exist.
+   //!
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   const_iterator upper_bound(const KeyType &key, KeyValueCompare comp) const
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return const_iterator(node_algorithms::upper_bound
+         (this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <b>Effects</b>: Finds an iterator to the first element whose key is 
+   //!   k or end() if that element does not exist.
+   //!
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   iterator find(const_reference value)
+   {  return this->find(value, priv_comp()); }
+
+   //! <b>Effects</b>: Finds an iterator to the first element whose key is 
+   //!   k or end() if that element does not exist.
+   //!
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   iterator find(const KeyType &key, KeyValueCompare comp)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return iterator
+         (node_algorithms::find(this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <b>Effects</b>: Finds a const_iterator to the first element whose key is 
+   //!   k or end() if that element does not exist.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator find(const_reference value) const
+   {  return this->find(value, priv_comp()); }
+
+   //! <b>Effects</b>: Finds a const_iterator to the first element whose key is 
+   //!   k or end() if that element does not exist.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   const_iterator find(const KeyType &key, KeyValueCompare comp) const
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      return const_iterator
+         (node_algorithms::find(this->priv_header_ptr(), key, key_node_comp), this);
+   }
+
+   //! <b>Effects</b>: Finds a range containing all elements whose key is k or
+   //!   an empty range that indicates the position where those elements would be
+   //!   if they there is no elements with key k.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   std::pair<iterator,iterator> equal_range(const_reference value)
+   {  return this->equal_range(value, priv_comp());   }
+
+   //! <b>Effects</b>: Finds a range containing all elements whose key is k or
+   //!   an empty range that indicates the position where those elements would be
+   //!   if they there is no elements with key k.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   std::pair<iterator,iterator> equal_range(const KeyType &key, KeyValueCompare comp)
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      std::pair<node_ptr, node_ptr> ret
+         (node_algorithms::equal_range(this->priv_header_ptr(), key, key_node_comp));
+      return std::pair<iterator, iterator>(iterator(ret.first, this), iterator(ret.second, this));
+   }
+
+   //! <b>Effects</b>: Finds a range containing all elements whose key is k or
+   //!   an empty range that indicates the position where those elements would be
+   //!   if they there is no elements with key k.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   std::pair<const_iterator, const_iterator>
+      equal_range(const_reference value) const
+   {  return this->equal_range(value, priv_comp());   }
+
+   //! <b>Effects</b>: Finds a range containing all elements whose key is k or
+   //!   an empty range that indicates the position where those elements would be
+   //!   if they there is no elements with key k.
+   //! 
+   //! <b>Complexity</b>: Logarithmic.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   template<class KeyType, class KeyValueCompare>
+   std::pair<const_iterator, const_iterator>
+      equal_range(const KeyType &key, KeyValueCompare comp) const
+   {
+      detail::key_nodeptr_comp<KeyValueCompare, rbtree_impl>
+         key_node_comp(comp, this);
+      std::pair<node_ptr, node_ptr> ret
+         (node_algorithms::equal_range(this->priv_header_ptr(), key, key_node_comp));
+      return std::pair<const_iterator, const_iterator>(const_iterator(ret.first, this), const_iterator(ret.second, this));
+   }
+
+   //! <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.
+   template <class Cloner, class Disposer>
+   void clone_from(const rbtree_impl &src, Cloner cloner, Disposer disposer)
+   {
+      this->clear_and_dispose(disposer);
+      if(!src.empty()){
+         detail::exception_disposer<rbtree_impl, Disposer>
+            rollback(*this, disposer);
+         node_algorithms::clone
+            (const_node_ptr(src.priv_header_ptr())
+            ,node_ptr(this->priv_header_ptr())
+            ,detail::node_cloner<Cloner, rbtree_impl>(cloner, this)
+            ,detail::node_disposer<Disposer, rbtree_impl>(disposer, this));
+         this->priv_size_traits().set_size(src.priv_size_traits().get_size());
+         this->priv_comp() = src.priv_comp();
+         rollback.release();
+      }
+   }
+
+   //! <b>Effects</b>: Unlinks the leftmost node from the tree.
+   //! 
+   //! <b>Complexity</b>: Average complexity is constant time.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Notes</b>: This function breaks the tree and the tree can
+   //!   only be used for more unlink_leftmost_without_rebalance calls.
+   //!   This function is normally used to achieve a step by step
+   //!   controlled destruction of the tree.
+   pointer unlink_leftmost_without_rebalance()
+   {
+      node_ptr to_be_disposed(node_algorithms::unlink_leftmost_without_rebalance
+                           (this->priv_header_ptr()));
+      if(!to_be_disposed)
+         return 0;
+      this->priv_size_traits().decrement();
+      if(safemode_or_autounlink)//If this is commented does not work with normal_link
+         node_algorithms::init(to_be_disposed);
+      return get_real_value_traits().to_value_ptr(to_be_disposed);
+   }
+
+   //! <b>Requires</b>: replace_this must be a valid iterator of *this
+   //!   and with_this must not be inserted in any tree.
+   //! 
+   //! <b>Effects</b>: Replaces replace_this in its position in the
+   //!   tree with with_this. The tree does not need to be rebalanced.
+   //! 
+   //! <b>Complexity</b>: Constant. 
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This function will break container ordering invariants if
+   //!   with_this is not equivalent to *replace_this according to the
+   //!   ordering rules. This function is faster than erasing and inserting
+   //!   the node, since no rebalancing or comparison is needed.
+   void replace_node(iterator replace_this, reference with_this)
+   {
+      node_algorithms::replace_node( get_real_value_traits().to_node_ptr(*replace_this)
+                                   , this->priv_header_ptr()
+                                   , get_real_value_traits().to_node_ptr(with_this));
+      if(safemode_or_autounlink)
+         node_algorithms::init(replace_this.pointed_node());
+   }
+
+   //! <b>Requires</b>: value must be an lvalue and shall be in a set of
+   //!   appropriate type. Otherwise the behavior is undefined.
+   //! 
+   //! <b>Effects</b>: Returns: a valid iterator i belonging to the set
+   //!   that points to the value
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This static function is available only if the <i>value traits</i>
+   //!   is stateless.
+   static iterator s_iterator_to(reference value)
+   {
+      BOOST_STATIC_ASSERT((!stateful_value_traits));
+      return iterator (value_traits::to_node_ptr(value), 0);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue and shall be in a set of
+   //!   appropriate type. Otherwise the behavior is undefined.
+   //! 
+   //! <b>Effects</b>: Returns: a valid const_iterator i belonging to the
+   //!   set that points to the value
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Note</b>: This static function is available only if the <i>value traits</i>
+   //!   is stateless.
+   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)), 0);
+   }
+
+   //! <b>Requires</b>: value must be an lvalue and shall be in a set of
+   //!   appropriate type. Otherwise the behavior is undefined.
+   //! 
+   //! <b>Effects</b>: Returns: a valid iterator i belonging to the set
+   //!   that points to the value
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   iterator iterator_to(reference value)
+   {  return iterator (value_traits::to_node_ptr(value), this); }
+
+   //! <b>Requires</b>: value must be an lvalue and shall be in a set of
+   //!   appropriate type. Otherwise the behavior is undefined.
+   //! 
+   //! <b>Effects</b>: Returns: a valid const_iterator i belonging to the
+   //!   set that points to the value
+   //! 
+   //! <b>Complexity</b>: Constant.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   const_iterator iterator_to(const_reference value) const
+   {  return const_iterator (value_traits::to_node_ptr(const_cast<reference> (value)), this); }
+
+   //! <b>Requires</b>: value shall not be in a tree.
+   //! 
+   //! <b>Effects</b>: init_node puts the hook of a value in a well-known default
+   //!   state.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Constant time.
+   //! 
+   //! <b>Note</b>: This function puts the hook in the well-known default state
+   //!   used by auto_unlink and safe hooks.
+   static void init_node(reference value)
+   { node_algorithms::init(value_traits::to_node_ptr(value)); }
+
+   //! <b>Effects</b>: removes "value" from the container.
+   //! 
+   //! <b>Throws</b>: Nothing.
+   //! 
+   //! <b>Complexity</b>: Logarithmic time.
+   //! 
+   //! <b>Note</b>: This static function is only usable with non-constant
+   //! time size containers that have stateless comparison functors.
+   //!
+   //! If the user calls
+   //! this function with a constant time size container or stateful comparison
+   //! functor a compilation error will be issued.
+   static void remove_node(reference value)
+   {
+      BOOST_STATIC_ASSERT((!constant_time_size));
+      node_ptr to_remove(value_traits::to_node_ptr(value));
+      node_algorithms::unlink(to_remove);
+      if(safemode_or_autounlink)
+         node_algorithms::init(to_remove);
+   }
+
+   /// @cond
+   private:
+   template<class Disposer>
+   iterator private_erase(const_iterator b, const_iterator e, size_type &n, Disposer disposer)
+   {
+      for(n = 0; b != e; ++n)
+        this->erase_and_dispose(b++, disposer);
+      return b.unconst();
+   }
+
+   iterator private_erase(const_iterator b, const_iterator e, size_type &n)
+   {
+      for(n = 0; b != e; ++n)
+        this->erase(b++);
+      return b.unconst();
+   }
+   /// @endcond
+
+   private:
+   static rbtree_impl &priv_container_from_end_iterator(const const_iterator &end_iterator)
+   {
+      header_plus_size *r = detail::parent_from_member<header_plus_size, node>
+         ( boost::intrusive::detail::to_raw_pointer(end_iterator.pointed_node()), &header_plus_size::header_);
+      node_plus_pred_t *n = detail::parent_from_member
+         <node_plus_pred_t, header_plus_size>(r, &node_plus_pred_t::header_plus_size_);
+      data_t *d = detail::parent_from_member<data_t, node_plus_pred_t>(n, &data_t::node_plus_pred_);
+      rbtree_impl *rb  = detail::parent_from_member<rbtree_impl, data_t>(d, &rbtree_impl::data_);
+      return *rb;
+   }
+
+   static rbtree_impl &priv_container_from_iterator(const const_iterator &it)
+   {  return priv_container_from_end_iterator(it.end_iterator_from_it());   }
+};
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline bool operator<
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{  return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end());  }
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+bool operator==
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{
+   typedef rbtree_impl<Config> tree_type;
+   typedef typename tree_type::const_iterator const_iterator;
+
+   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;
+   }
+}
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline bool operator!=
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{  return !(x == y); }
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline bool operator>
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{  return y < x;  }
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline bool operator<=
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{  return !(y < x);  }
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline bool operator>=
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y)
+#else
+(const rbtree_impl<Config> &x, const rbtree_impl<Config> &y)
+#endif
+{  return !(x < y);  }
+
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+template<class T, class ...Options>
+#else
+template<class Config>
+#endif
+inline void swap
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
+(rbtree_impl<T, Options...> &x, rbtree_impl<T, Options...> &y)
+#else
+(rbtree_impl<Config> &x, rbtree_impl<Config> &y)
+#endif
+{  x.swap(y);  }
+
+/// @cond
+#if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+template<class T, class O1 = none, class O2 = none
+                , class O3 = none, class O4 = none
+                >
+#else
+template<class T, class ...Options>
+#endif
+struct make_rbtree_opt
+{
+   typedef typename pack_options
+      < set_defaults<T>, 
+      #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+      O1, O2, O3, O4
+      #else
+      Options...
+      #endif
+      >::type packed_options;
+   typedef typename detail::get_value_traits
+      <T, typename packed_options::value_traits>::type value_traits;
+
+   typedef setopt
+         < value_traits
+         , typename packed_options::compare
+         , typename packed_options::size_type
+         , packed_options::constant_time_size
+         > type;
+};
+/// @endcond
+
+//! Helper metafunction to define a \c rbtree that yields to the same type when the
+//! same options (either explicitly or implicitly) are used.
+#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+template<class T, class ...Options>
+#else
+template<class T, class O1 = none, class O2 = none
+                , class O3 = none, class O4 = none>
+#endif
+struct make_rbtree
+{
+   /// @cond
+   typedef rbtree_impl
+      < typename make_rbtree_opt<T, 
+         #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+         O1, O2, O3, O4
+         #else
+         Options...
+         #endif
+         >::type
+      > implementation_defined;
+   /// @endcond
+   typedef implementation_defined type;
+};
+
+#ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
+
+#if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+template<class T, class O1, class O2, class O3, class O4>
+#else
+template<class T, class ...Options>
+#endif
+class rbtree
+   :  public make_rbtree<T, 
+      #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+      O1, O2, O3, O4
+      #else
+      Options...
+      #endif
+      >::type
+{
+   typedef typename make_rbtree
+      <T, 
+      #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
+      O1, O2, O3, O4
+      #else
+      Options...
+      #endif
+      >::type   Base;
+   BOOST_MOVABLE_BUT_NOT_COPYABLE(rbtree)
+
+   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));
+
+   rbtree( const value_compare &cmp = value_compare()
+         , const value_traits &v_traits = value_traits())
+      :  Base(cmp, v_traits)
+   {}
+
+   template<class Iterator>
+   rbtree( bool unique, Iterator b, Iterator e
+         , const value_compare &cmp = value_compare()
+         , const value_traits &v_traits = value_traits())
+      :  Base(unique, b, e, cmp, v_traits)
+   {}
+
+   rbtree(BOOST_RV_REF(rbtree) x)
+      :  Base(::boost::move(static_cast<Base&>(x)))
+   {}
+
+   rbtree& operator=(BOOST_RV_REF(rbtree) x)
+   {  this->Base::operator=(::boost::move(static_cast<Base&>(x))); return *this;  }
+
+   static rbtree &container_from_end_iterator(iterator end_iterator)
+   {  return static_cast<rbtree &>(Base::container_from_end_iterator(end_iterator));   }
+
+   static const rbtree &container_from_end_iterator(const_iterator end_iterator)
+   {  return static_cast<const rbtree &>(Base::container_from_end_iterator(end_iterator));   }
+
+   static rbtree &container_from_it(iterator it)
+   {  return static_cast<rbtree &>(Base::container_from_iterator(it));   }
+
+   static const rbtree &container_from_it(const_iterator it)
+   {  return static_cast<const rbtree &>(Base::container_from_iterator(it));   }
+};
+
+#endif
+
+
+} //namespace intrusive 
+} //namespace boost 
+
+#include <boost/intrusive/detail/config_end.hpp>
+
+#endif //BOOST_INTRUSIVE_RBTREE_HPP