mirror of
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1183 lines
42 KiB
C++
1183 lines
42 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2013. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_CONTAINER_TREE_HPP
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#define BOOST_CONTAINER_TREE_HPP
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#if defined(_MSC_VER)
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# pragma once
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#endif
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#include <boost/container/detail/config_begin.hpp>
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#include <boost/container/detail/workaround.hpp>
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#include <boost/container/container_fwd.hpp>
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#include <boost/container/detail/utilities.hpp>
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#include <boost/container/detail/iterators.hpp>
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#include <boost/container/detail/algorithms.hpp>
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#include <boost/container/detail/node_alloc_holder.hpp>
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#include <boost/container/detail/destroyers.hpp>
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#include <boost/container/detail/pair.hpp>
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#include <boost/container/detail/type_traits.hpp>
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#include <boost/container/allocator_traits.hpp>
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#include <boost/container/options.hpp>
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//
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#include <boost/intrusive/pointer_traits.hpp>
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#include <boost/intrusive/rbtree.hpp>
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#include <boost/intrusive/avltree.hpp>
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#include <boost/intrusive/splaytree.hpp>
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#include <boost/intrusive/sgtree.hpp>
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//
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#include <boost/move/utility_core.hpp>
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#include <boost/type_traits/has_trivial_destructor.hpp>
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#include <boost/core/no_exceptions_support.hpp>
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//
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#ifndef BOOST_CONTAINER_PERFECT_FORWARDING
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#include <boost/container/detail/preprocessor.hpp>
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#endif
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#include <utility> //std::pair
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#include <iterator>
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#include <algorithm>
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namespace boost {
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namespace container {
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namespace container_detail {
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template<class Key, class Value, class KeyCompare, class KeyOfValue>
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struct tree_value_compare
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: public KeyCompare
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{
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typedef Value value_type;
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typedef KeyCompare key_compare;
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typedef KeyOfValue key_of_value;
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typedef Key key_type;
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explicit tree_value_compare(const key_compare &kcomp)
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: KeyCompare(kcomp)
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{}
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tree_value_compare()
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: KeyCompare()
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{}
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const key_compare &key_comp() const
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{ return static_cast<const key_compare &>(*this); }
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key_compare &key_comp()
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{ return static_cast<key_compare &>(*this); }
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template<class T>
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struct is_key
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{
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static const bool value = is_same<const T, const key_type>::value;
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};
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template<class T>
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typename enable_if_c<is_key<T>::value, const key_type &>::type
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key_forward(const T &key) const
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{ return key; }
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template<class T>
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typename enable_if_c<!is_key<T>::value, const key_type &>::type
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key_forward(const T &key) const
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{ return KeyOfValue()(key); }
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template<class KeyType, class KeyType2>
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bool operator()(const KeyType &key1, const KeyType2 &key2) const
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{ return key_compare::operator()(this->key_forward(key1), this->key_forward(key2)); }
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};
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template<class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
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struct intrusive_tree_hook;
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template<class VoidPointer, bool OptimizeSize>
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struct intrusive_tree_hook<VoidPointer, boost::container::red_black_tree, OptimizeSize>
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{
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typedef typename container_detail::bi::make_set_base_hook
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< container_detail::bi::void_pointer<VoidPointer>
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, container_detail::bi::link_mode<container_detail::bi::normal_link>
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, container_detail::bi::optimize_size<OptimizeSize>
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>::type type;
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};
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template<class VoidPointer, bool OptimizeSize>
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struct intrusive_tree_hook<VoidPointer, boost::container::avl_tree, OptimizeSize>
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{
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typedef typename container_detail::bi::make_avl_set_base_hook
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< container_detail::bi::void_pointer<VoidPointer>
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, container_detail::bi::link_mode<container_detail::bi::normal_link>
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, container_detail::bi::optimize_size<OptimizeSize>
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>::type type;
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};
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template<class VoidPointer, bool OptimizeSize>
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struct intrusive_tree_hook<VoidPointer, boost::container::scapegoat_tree, OptimizeSize>
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{
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typedef typename container_detail::bi::make_bs_set_base_hook
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< container_detail::bi::void_pointer<VoidPointer>
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, container_detail::bi::link_mode<container_detail::bi::normal_link>
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>::type type;
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};
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template<class VoidPointer, bool OptimizeSize>
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struct intrusive_tree_hook<VoidPointer, boost::container::splay_tree, OptimizeSize>
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{
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typedef typename container_detail::bi::make_bs_set_base_hook
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< container_detail::bi::void_pointer<VoidPointer>
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, container_detail::bi::link_mode<container_detail::bi::normal_link>
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>::type type;
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};
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//This trait is used to type-pun std::pair because in C++03
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//compilers std::pair is useless for C++11 features
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template<class T>
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struct tree_internal_data_type
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{
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typedef T type;
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};
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template<class T1, class T2>
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struct tree_internal_data_type< std::pair<T1, T2> >
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{
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typedef pair<T1, T2> type;
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};
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//The node to be store in the tree
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template <class T, class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
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struct tree_node
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: public intrusive_tree_hook<VoidPointer, tree_type_value, OptimizeSize>::type
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{
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private:
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//BOOST_COPYABLE_AND_MOVABLE(tree_node)
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tree_node();
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public:
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typedef typename intrusive_tree_hook
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<VoidPointer, tree_type_value, OptimizeSize>::type hook_type;
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typedef T value_type;
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typedef typename tree_internal_data_type<T>::type internal_type;
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typedef tree_node< T, VoidPointer
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, tree_type_value, OptimizeSize> node_type;
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T &get_data()
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{
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T* ptr = reinterpret_cast<T*>(&this->m_data);
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return *ptr;
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}
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const T &get_data() const
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{
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const T* ptr = reinterpret_cast<const T*>(&this->m_data);
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return *ptr;
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}
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internal_type m_data;
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template<class A, class B>
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void do_assign(const std::pair<const A, B> &p)
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{
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const_cast<A&>(m_data.first) = p.first;
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m_data.second = p.second;
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}
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template<class A, class B>
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void do_assign(const pair<const A, B> &p)
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{
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const_cast<A&>(m_data.first) = p.first;
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m_data.second = p.second;
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}
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template<class V>
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void do_assign(const V &v)
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{ m_data = v; }
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template<class A, class B>
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void do_move_assign(std::pair<const A, B> &p)
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{
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const_cast<A&>(m_data.first) = ::boost::move(p.first);
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m_data.second = ::boost::move(p.second);
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}
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template<class A, class B>
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void do_move_assign(pair<const A, B> &p)
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{
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const_cast<A&>(m_data.first) = ::boost::move(p.first);
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m_data.second = ::boost::move(p.second);
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}
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template<class V>
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void do_move_assign(V &v)
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{ m_data = ::boost::move(v); }
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};
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template <class T, class VoidPointer, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
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struct iiterator_node_value_type< tree_node<T, VoidPointer, tree_type_value, OptimizeSize> > {
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typedef T type;
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};
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template<class Node, class Icont>
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class insert_equal_end_hint_functor
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{
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Icont &icont_;
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public:
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insert_equal_end_hint_functor(Icont &icont)
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: icont_(icont)
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{}
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void operator()(Node &n)
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{ this->icont_.insert_equal(this->icont_.cend(), n); }
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};
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template<class Node, class Icont>
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class push_back_functor
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{
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Icont &icont_;
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public:
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push_back_functor(Icont &icont)
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: icont_(icont)
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{}
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void operator()(Node &n)
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{ this->icont_.push_back(n); }
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};
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}//namespace container_detail {
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namespace container_detail {
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template< class NodeType, class NodeCompareType
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, class SizeType, class HookType
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, boost::container::tree_type_enum tree_type_value>
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struct intrusive_tree_dispatch;
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template<class NodeType, class NodeCompareType, class SizeType, class HookType>
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struct intrusive_tree_dispatch
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<NodeType, NodeCompareType, SizeType, HookType, boost::container::red_black_tree>
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{
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typedef typename container_detail::bi::make_rbtree
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<NodeType
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,container_detail::bi::compare<NodeCompareType>
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,container_detail::bi::base_hook<HookType>
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,container_detail::bi::constant_time_size<true>
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,container_detail::bi::size_type<SizeType>
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>::type type;
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};
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template<class NodeType, class NodeCompareType, class SizeType, class HookType>
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struct intrusive_tree_dispatch
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<NodeType, NodeCompareType, SizeType, HookType, boost::container::avl_tree>
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{
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typedef typename container_detail::bi::make_avltree
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<NodeType
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,container_detail::bi::compare<NodeCompareType>
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,container_detail::bi::base_hook<HookType>
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,container_detail::bi::constant_time_size<true>
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,container_detail::bi::size_type<SizeType>
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>::type type;
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};
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template<class NodeType, class NodeCompareType, class SizeType, class HookType>
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struct intrusive_tree_dispatch
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<NodeType, NodeCompareType, SizeType, HookType, boost::container::scapegoat_tree>
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{
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typedef typename container_detail::bi::make_sgtree
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<NodeType
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,container_detail::bi::compare<NodeCompareType>
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,container_detail::bi::base_hook<HookType>
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,container_detail::bi::floating_point<true>
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,container_detail::bi::size_type<SizeType>
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>::type type;
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};
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template<class NodeType, class NodeCompareType, class SizeType, class HookType>
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struct intrusive_tree_dispatch
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<NodeType, NodeCompareType, SizeType, HookType, boost::container::splay_tree>
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{
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typedef typename container_detail::bi::make_splaytree
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<NodeType
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,container_detail::bi::compare<NodeCompareType>
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,container_detail::bi::base_hook<HookType>
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,container_detail::bi::constant_time_size<true>
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,container_detail::bi::size_type<SizeType>
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>::type type;
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};
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template<class A, class ValueCompare, boost::container::tree_type_enum tree_type_value, bool OptimizeSize>
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struct intrusive_tree_type
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{
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private:
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typedef typename boost::container::
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allocator_traits<A>::value_type value_type;
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typedef typename boost::container::
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allocator_traits<A>::void_pointer void_pointer;
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typedef typename boost::container::
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allocator_traits<A>::size_type size_type;
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typedef typename container_detail::tree_node
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< value_type, void_pointer
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, tree_type_value, OptimizeSize> node_type;
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typedef node_compare<ValueCompare, node_type> node_compare_type;
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//Deducing the hook type from node_type (e.g. node_type::hook_type) would
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//provoke an early instantiation of node_type that could ruin recursive
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//tree definitions, so retype the complete type to avoid any problem.
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typedef typename intrusive_tree_hook
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<void_pointer, tree_type_value
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, OptimizeSize>::type hook_type;
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public:
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typedef typename intrusive_tree_dispatch
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< node_type, node_compare_type
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, size_type, hook_type
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, tree_type_value>::type type;
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};
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//Trait to detect manually rebalanceable tree types
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template<boost::container::tree_type_enum tree_type_value>
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struct is_manually_balanceable
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{ static const bool value = true; };
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template<> struct is_manually_balanceable<red_black_tree>
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{ static const bool value = false; };
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template<> struct is_manually_balanceable<avl_tree>
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{ static const bool value = false; };
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//Proxy traits to implement different operations depending on the
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//is_manually_balanceable<>::value
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template< boost::container::tree_type_enum tree_type_value
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, bool IsManuallyRebalanceable = is_manually_balanceable<tree_type_value>::value>
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struct intrusive_tree_proxy
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{
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template<class Icont>
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static void rebalance(Icont &) {}
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};
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template<boost::container::tree_type_enum tree_type_value>
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struct intrusive_tree_proxy<tree_type_value, true>
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{
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template<class Icont>
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static void rebalance(Icont &c)
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{ c.rebalance(); }
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};
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} //namespace container_detail {
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namespace container_detail {
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//This functor will be used with Intrusive clone functions to obtain
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//already allocated nodes from a intrusive container instead of
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//allocating new ones. When the intrusive container runs out of nodes
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//the node holder is used instead.
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template<class AllocHolder, bool DoMove>
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class RecyclingCloner
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{
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typedef typename AllocHolder::intrusive_container intrusive_container;
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typedef typename AllocHolder::Node node_type;
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typedef typename AllocHolder::NodePtr node_ptr_type;
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public:
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RecyclingCloner(AllocHolder &holder, intrusive_container &itree)
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: m_holder(holder), m_icont(itree)
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{}
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static void do_assign(node_ptr_type &p, const node_type &other, bool_<true>)
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{ p->do_assign(other.m_data); }
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static void do_assign(node_ptr_type &p, const node_type &other, bool_<false>)
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{ p->do_move_assign(const_cast<node_type &>(other).m_data); }
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node_ptr_type operator()(const node_type &other) const
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{
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if(node_ptr_type p = m_icont.unlink_leftmost_without_rebalance()){
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//First recycle a node (this can't throw)
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BOOST_TRY{
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//This can throw
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this->do_assign(p, other, bool_<DoMove>());
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return p;
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}
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BOOST_CATCH(...){
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//If there is an exception destroy the whole source
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m_holder.destroy_node(p);
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while((p = m_icont.unlink_leftmost_without_rebalance())){
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m_holder.destroy_node(p);
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}
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BOOST_RETHROW
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}
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BOOST_CATCH_END
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}
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else{
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return m_holder.create_node(other.m_data);
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}
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}
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AllocHolder &m_holder;
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intrusive_container &m_icont;
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};
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template<class KeyValueCompare, class Node>
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//where KeyValueCompare is tree_value_compare<Key, Value, KeyCompare, KeyOfValue>
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struct key_node_compare
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: private KeyValueCompare
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{
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explicit key_node_compare(const KeyValueCompare &comp)
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: KeyValueCompare(comp)
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{}
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template<class T>
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struct is_node
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{
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static const bool value = is_same<T, Node>::value;
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};
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template<class T>
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typename enable_if_c<is_node<T>::value, const typename KeyValueCompare::value_type &>::type
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key_forward(const T &node) const
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{ return node.get_data(); }
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template<class T>
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typename enable_if_c<!is_node<T>::value, const T &>::type
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key_forward(const T &key) const
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{ return key; }
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template<class KeyType, class KeyType2>
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bool operator()(const KeyType &key1, const KeyType2 &key2) const
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{ return KeyValueCompare::operator()(this->key_forward(key1), this->key_forward(key2)); }
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};
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template <class Key, class Value, class KeyOfValue,
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class KeyCompare, class A,
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class Options = tree_assoc_defaults>
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class tree
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: protected container_detail::node_alloc_holder
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< A
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, typename container_detail::intrusive_tree_type
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< A, tree_value_compare<Key, Value, KeyCompare, KeyOfValue> //ValComp
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, Options::tree_type, Options::optimize_size>::type
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>
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{
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typedef tree_value_compare
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<Key, Value, KeyCompare, KeyOfValue> ValComp;
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typedef typename container_detail::intrusive_tree_type
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< A, ValComp, Options::tree_type
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, Options::optimize_size>::type Icont;
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typedef container_detail::node_alloc_holder
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<A, Icont> AllocHolder;
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typedef typename AllocHolder::NodePtr NodePtr;
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typedef tree < Key, Value, KeyOfValue
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, KeyCompare, A, Options> ThisType;
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typedef typename AllocHolder::NodeAlloc NodeAlloc;
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typedef typename AllocHolder::ValAlloc ValAlloc;
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typedef typename AllocHolder::Node Node;
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typedef typename Icont::iterator iiterator;
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typedef typename Icont::const_iterator iconst_iterator;
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typedef container_detail::allocator_destroyer<NodeAlloc> Destroyer;
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typedef typename AllocHolder::allocator_v1 allocator_v1;
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typedef typename AllocHolder::allocator_v2 allocator_v2;
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typedef typename AllocHolder::alloc_version alloc_version;
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typedef intrusive_tree_proxy<Options::tree_type> intrusive_tree_proxy_t;
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BOOST_COPYABLE_AND_MOVABLE(tree)
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public:
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typedef Key key_type;
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typedef Value value_type;
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typedef A allocator_type;
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typedef KeyCompare key_compare;
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typedef ValComp value_compare;
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typedef typename boost::container::
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allocator_traits<A>::pointer pointer;
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typedef typename boost::container::
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allocator_traits<A>::const_pointer const_pointer;
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typedef typename boost::container::
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allocator_traits<A>::reference reference;
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typedef typename boost::container::
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allocator_traits<A>::const_reference const_reference;
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typedef typename boost::container::
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allocator_traits<A>::size_type size_type;
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typedef typename boost::container::
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allocator_traits<A>::difference_type difference_type;
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typedef difference_type tree_difference_type;
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typedef pointer tree_pointer;
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typedef const_pointer tree_const_pointer;
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typedef reference tree_reference;
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typedef const_reference tree_const_reference;
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typedef NodeAlloc stored_allocator_type;
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private:
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typedef key_node_compare<value_compare, Node> KeyNodeCompare;
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public:
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typedef container_detail::iterator<iiterator, false> iterator;
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typedef container_detail::iterator<iiterator, true > const_iterator;
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typedef container_detail::reverse_iterator<iterator> reverse_iterator;
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typedef container_detail::reverse_iterator<const_iterator> const_reverse_iterator;
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tree()
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: AllocHolder(ValComp(key_compare()))
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{}
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explicit tree(const key_compare& comp, const allocator_type& a = allocator_type())
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: AllocHolder(a, ValComp(comp))
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{}
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explicit tree(const allocator_type& a)
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: AllocHolder(a)
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{}
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template <class InputIterator>
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tree(bool unique_insertion, InputIterator first, InputIterator last, const key_compare& comp,
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const allocator_type& a
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#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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, typename container_detail::enable_if_c
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< container_detail::is_input_iterator<InputIterator>::value
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|| container_detail::is_same<alloc_version, allocator_v1>::value
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>::type * = 0
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#endif
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)
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: AllocHolder(a, value_compare(comp))
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{
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//Use cend() as hint to achieve linear time for
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//ordered ranges as required by the standard
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//for the constructor
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const const_iterator end_it(this->cend());
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if(unique_insertion){
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for ( ; first != last; ++first){
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this->insert_unique(end_it, *first);
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}
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}
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else{
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for ( ; first != last; ++first){
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this->insert_equal(end_it, *first);
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}
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}
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}
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template <class InputIterator>
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tree(bool unique_insertion, InputIterator first, InputIterator last, const key_compare& comp,
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const allocator_type& a
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#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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, typename container_detail::enable_if_c
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< !(container_detail::is_input_iterator<InputIterator>::value
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|| container_detail::is_same<alloc_version, allocator_v1>::value)
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>::type * = 0
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#endif
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)
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: AllocHolder(a, value_compare(comp))
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{
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if(unique_insertion){
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//Use cend() as hint to achieve linear time for
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//ordered ranges as required by the standard
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//for the constructor
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const const_iterator end_it(this->cend());
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for ( ; first != last; ++first){
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this->insert_unique(end_it, *first);
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}
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}
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else{
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//Optimized allocation and construction
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this->allocate_many_and_construct
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( first, std::distance(first, last)
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, insert_equal_end_hint_functor<Node, Icont>(this->icont()));
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}
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}
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template <class InputIterator>
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tree( ordered_range_t, InputIterator first, InputIterator last
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, const key_compare& comp = key_compare(), const allocator_type& a = allocator_type()
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#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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, typename container_detail::enable_if_c
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< container_detail::is_input_iterator<InputIterator>::value
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|| container_detail::is_same<alloc_version, allocator_v1>::value
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>::type * = 0
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#endif
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)
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: AllocHolder(a, value_compare(comp))
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{
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for ( ; first != last; ++first){
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this->push_back_impl(*first);
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}
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}
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template <class InputIterator>
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tree( ordered_range_t, InputIterator first, InputIterator last
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, const key_compare& comp = key_compare(), const allocator_type& a = allocator_type()
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#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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, typename container_detail::enable_if_c
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< !(container_detail::is_input_iterator<InputIterator>::value
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|| container_detail::is_same<alloc_version, allocator_v1>::value)
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>::type * = 0
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#endif
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)
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: AllocHolder(a, value_compare(comp))
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{
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//Optimized allocation and construction
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this->allocate_many_and_construct
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( first, std::distance(first, last)
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, container_detail::push_back_functor<Node, Icont>(this->icont()));
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}
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tree(const tree& x)
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: AllocHolder(x, x.value_comp())
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{
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this->icont().clone_from
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(x.icont(), typename AllocHolder::cloner(*this), Destroyer(this->node_alloc()));
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}
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tree(BOOST_RV_REF(tree) x)
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: AllocHolder(::boost::move(static_cast<AllocHolder&>(x)), x.value_comp())
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{}
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tree(const tree& x, const allocator_type &a)
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: AllocHolder(a, x.value_comp())
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{
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this->icont().clone_from
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(x.icont(), typename AllocHolder::cloner(*this), Destroyer(this->node_alloc()));
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}
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tree(BOOST_RV_REF(tree) x, const allocator_type &a)
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: AllocHolder(a, x.value_comp())
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{
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if(this->node_alloc() == x.node_alloc()){
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this->icont().swap(x.icont());
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}
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else{
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this->icont().clone_from
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(x.icont(), typename AllocHolder::cloner(*this), Destroyer(this->node_alloc()));
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}
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}
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~tree()
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{} //AllocHolder clears the tree
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tree& operator=(BOOST_COPY_ASSIGN_REF(tree) x)
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{
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if (&x != this){
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NodeAlloc &this_alloc = this->get_stored_allocator();
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const NodeAlloc &x_alloc = x.get_stored_allocator();
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container_detail::bool_<allocator_traits<NodeAlloc>::
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propagate_on_container_copy_assignment::value> flag;
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if(flag && this_alloc != x_alloc){
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this->clear();
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}
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this->AllocHolder::copy_assign_alloc(x);
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//Transfer all the nodes to a temporary tree
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//If anything goes wrong, all the nodes will be destroyed
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//automatically
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Icont other_tree(::boost::move(this->icont()));
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//Now recreate the source tree reusing nodes stored by other_tree
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this->icont().clone_from
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(x.icont()
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, RecyclingCloner<AllocHolder, false>(*this, other_tree)
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, Destroyer(this->node_alloc()));
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//If there are remaining nodes, destroy them
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NodePtr p;
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while((p = other_tree.unlink_leftmost_without_rebalance())){
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AllocHolder::destroy_node(p);
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}
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}
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return *this;
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}
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tree& operator=(BOOST_RV_REF(tree) x)
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{
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BOOST_ASSERT(this != &x);
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NodeAlloc &this_alloc = this->node_alloc();
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NodeAlloc &x_alloc = x.node_alloc();
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const bool propagate_alloc = allocator_traits<NodeAlloc>::
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propagate_on_container_move_assignment::value;
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const bool allocators_equal = this_alloc == x_alloc; (void)allocators_equal;
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//Resources can be transferred if both allocators are
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//going to be equal after this function (either propagated or already equal)
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if(propagate_alloc || allocators_equal){
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//Destroy
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this->clear();
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//Move allocator if needed
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this->AllocHolder::move_assign_alloc(x);
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//Obtain resources
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this->icont() = boost::move(x.icont());
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}
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//Else do a one by one move
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else{
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//Transfer all the nodes to a temporary tree
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//If anything goes wrong, all the nodes will be destroyed
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//automatically
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Icont other_tree(::boost::move(this->icont()));
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//Now recreate the source tree reusing nodes stored by other_tree
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this->icont().clone_from
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(x.icont()
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, RecyclingCloner<AllocHolder, true>(*this, other_tree)
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, Destroyer(this->node_alloc()));
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//If there are remaining nodes, destroy them
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NodePtr p;
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while((p = other_tree.unlink_leftmost_without_rebalance())){
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AllocHolder::destroy_node(p);
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}
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}
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return *this;
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}
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public:
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// accessors:
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value_compare value_comp() const
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{ return this->icont().value_comp().value_comp(); }
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key_compare key_comp() const
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{ return this->icont().value_comp().value_comp().key_comp(); }
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allocator_type get_allocator() const
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{ return allocator_type(this->node_alloc()); }
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const stored_allocator_type &get_stored_allocator() const
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{ return this->node_alloc(); }
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stored_allocator_type &get_stored_allocator()
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{ return this->node_alloc(); }
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iterator begin()
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{ return iterator(this->icont().begin()); }
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const_iterator begin() const
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{ return this->cbegin(); }
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iterator end()
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{ return iterator(this->icont().end()); }
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const_iterator end() const
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{ return this->cend(); }
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reverse_iterator rbegin()
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{ return reverse_iterator(end()); }
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const_reverse_iterator rbegin() const
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{ return this->crbegin(); }
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reverse_iterator rend()
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{ return reverse_iterator(begin()); }
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const_reverse_iterator rend() const
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{ return this->crend(); }
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//! <b>Effects</b>: Returns a const_iterator to the first element contained in the container.
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//!
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//! <b>Throws</b>: Nothing.
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//!
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//! <b>Complexity</b>: Constant.
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const_iterator cbegin() const
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{ return const_iterator(this->non_const_icont().begin()); }
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//! <b>Effects</b>: Returns a const_iterator to the end of the container.
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//!
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//! <b>Throws</b>: Nothing.
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//!
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//! <b>Complexity</b>: Constant.
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const_iterator cend() const
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{ return const_iterator(this->non_const_icont().end()); }
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//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
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//! of the reversed container.
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//!
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//! <b>Throws</b>: Nothing.
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//!
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//! <b>Complexity</b>: Constant.
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const_reverse_iterator crbegin() const
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{ return const_reverse_iterator(cend()); }
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//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
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//! of the reversed container.
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//!
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//! <b>Throws</b>: Nothing.
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//!
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//! <b>Complexity</b>: Constant.
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const_reverse_iterator crend() const
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{ return const_reverse_iterator(cbegin()); }
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bool empty() const
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{ return !this->size(); }
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size_type size() const
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{ return this->icont().size(); }
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size_type max_size() const
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{ return AllocHolder::max_size(); }
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void swap(ThisType& x)
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{ AllocHolder::swap(x); }
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public:
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typedef typename Icont::insert_commit_data insert_commit_data;
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// insert/erase
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std::pair<iterator,bool> insert_unique_check
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(const key_type& key, insert_commit_data &data)
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{
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std::pair<iiterator, bool> ret =
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this->icont().insert_unique_check(key, KeyNodeCompare(value_comp()), data);
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return std::pair<iterator, bool>(iterator(ret.first), ret.second);
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}
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std::pair<iterator,bool> insert_unique_check
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(const_iterator hint, const key_type& key, insert_commit_data &data)
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{
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std::pair<iiterator, bool> ret =
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this->icont().insert_unique_check(hint.get(), key, KeyNodeCompare(value_comp()), data);
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return std::pair<iterator, bool>(iterator(ret.first), ret.second);
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}
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iterator insert_unique_commit(const value_type& v, insert_commit_data &data)
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{
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NodePtr tmp = AllocHolder::create_node(v);
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scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
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iterator ret(this->icont().insert_unique_commit(*tmp, data));
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destroy_deallocator.release();
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return ret;
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}
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template<class MovableConvertible>
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iterator insert_unique_commit
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(BOOST_FWD_REF(MovableConvertible) mv, insert_commit_data &data)
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{
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NodePtr tmp = AllocHolder::create_node(boost::forward<MovableConvertible>(mv));
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scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
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iterator ret(this->icont().insert_unique_commit(*tmp, data));
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destroy_deallocator.release();
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return ret;
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}
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std::pair<iterator,bool> insert_unique(const value_type& v)
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{
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insert_commit_data data;
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std::pair<iterator,bool> ret =
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this->insert_unique_check(KeyOfValue()(v), data);
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if(ret.second){
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ret.first = this->insert_unique_commit(v, data);
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}
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return ret;
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}
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template<class MovableConvertible>
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std::pair<iterator,bool> insert_unique(BOOST_FWD_REF(MovableConvertible) mv)
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{
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insert_commit_data data;
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std::pair<iterator,bool> ret =
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this->insert_unique_check(KeyOfValue()(mv), data);
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if(ret.second){
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ret.first = this->insert_unique_commit(boost::forward<MovableConvertible>(mv), data);
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}
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return ret;
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}
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private:
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template<class MovableConvertible>
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void push_back_impl(BOOST_FWD_REF(MovableConvertible) mv)
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{
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NodePtr tmp(AllocHolder::create_node(boost::forward<MovableConvertible>(mv)));
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//push_back has no-throw guarantee so avoid any deallocator/destroyer
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this->icont().push_back(*tmp);
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}
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std::pair<iterator, bool> emplace_unique_impl(NodePtr p)
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{
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value_type &v = p->get_data();
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insert_commit_data data;
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scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(p, this->node_alloc());
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std::pair<iterator,bool> ret =
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this->insert_unique_check(KeyOfValue()(v), data);
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if(!ret.second){
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return ret;
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}
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//No throw insertion part, release rollback
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destroy_deallocator.release();
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return std::pair<iterator,bool>
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( iterator(iiterator(this->icont().insert_unique_commit(*p, data)))
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, true );
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}
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iterator emplace_unique_hint_impl(const_iterator hint, NodePtr p)
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{
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value_type &v = p->get_data();
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insert_commit_data data;
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std::pair<iterator,bool> ret =
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this->insert_unique_check(hint, KeyOfValue()(v), data);
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if(!ret.second){
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Destroyer(this->node_alloc())(p);
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return ret.first;
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}
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return iterator(iiterator(this->icont().insert_unique_commit(*p, data)));
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}
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public:
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|
|
#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
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template <class... Args>
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std::pair<iterator, bool> emplace_unique(Args&&... args)
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{ return this->emplace_unique_impl(AllocHolder::create_node(boost::forward<Args>(args)...)); }
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template <class... Args>
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iterator emplace_hint_unique(const_iterator hint, Args&&... args)
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{ return this->emplace_unique_hint_impl(hint, AllocHolder::create_node(boost::forward<Args>(args)...)); }
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|
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template <class... Args>
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iterator emplace_equal(Args&&... args)
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{
|
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NodePtr tmp(AllocHolder::create_node(boost::forward<Args>(args)...));
|
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scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
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iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));
|
|
destroy_deallocator.release();
|
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return ret;
|
|
}
|
|
|
|
template <class... Args>
|
|
iterator emplace_hint_equal(const_iterator hint, Args&&... args)
|
|
{
|
|
NodePtr tmp(AllocHolder::create_node(boost::forward<Args>(args)...));
|
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scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
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iterator ret(this->icont().insert_equal(hint.get(), *tmp));
|
|
destroy_deallocator.release();
|
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return ret;
|
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}
|
|
|
|
#else //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
|
|
|
|
#define BOOST_PP_LOCAL_MACRO(n) \
|
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BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
|
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std::pair<iterator, bool> emplace_unique(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
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return this->emplace_unique_impl \
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(AllocHolder::create_node(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); \
|
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} \
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\
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BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
|
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iterator emplace_hint_unique(const_iterator hint \
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|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
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return this->emplace_unique_hint_impl \
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(hint, AllocHolder::create_node(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); \
|
|
} \
|
|
\
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|
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
|
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iterator emplace_equal(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
NodePtr tmp(AllocHolder::create_node(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); \
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc()); \
|
|
iterator ret(this->icont().insert_equal(this->icont().end(), *tmp)); \
|
|
destroy_deallocator.release(); \
|
|
return ret; \
|
|
} \
|
|
\
|
|
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
|
|
iterator emplace_hint_equal(const_iterator hint \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
NodePtr tmp(AllocHolder::create_node(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); \
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc()); \
|
|
iterator ret(this->icont().insert_equal(hint.get(), *tmp)); \
|
|
destroy_deallocator.release(); \
|
|
return ret; \
|
|
} \
|
|
//!
|
|
#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
|
|
#include BOOST_PP_LOCAL_ITERATE()
|
|
|
|
#endif //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
|
|
|
|
iterator insert_unique(const_iterator hint, const value_type& v)
|
|
{
|
|
insert_commit_data data;
|
|
std::pair<iterator,bool> ret =
|
|
this->insert_unique_check(hint, KeyOfValue()(v), data);
|
|
if(!ret.second)
|
|
return ret.first;
|
|
return this->insert_unique_commit(v, data);
|
|
}
|
|
|
|
template<class MovableConvertible>
|
|
iterator insert_unique(const_iterator hint, BOOST_FWD_REF(MovableConvertible) mv)
|
|
{
|
|
insert_commit_data data;
|
|
std::pair<iterator,bool> ret =
|
|
this->insert_unique_check(hint, KeyOfValue()(mv), data);
|
|
if(!ret.second)
|
|
return ret.first;
|
|
return this->insert_unique_commit(boost::forward<MovableConvertible>(mv), data);
|
|
}
|
|
|
|
template <class InputIterator>
|
|
void insert_unique(InputIterator first, InputIterator last)
|
|
{
|
|
for( ; first != last; ++first)
|
|
this->insert_unique(*first);
|
|
}
|
|
|
|
iterator insert_equal(const value_type& v)
|
|
{
|
|
NodePtr tmp(AllocHolder::create_node(v));
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
|
iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));
|
|
destroy_deallocator.release();
|
|
return ret;
|
|
}
|
|
|
|
template<class MovableConvertible>
|
|
iterator insert_equal(BOOST_FWD_REF(MovableConvertible) mv)
|
|
{
|
|
NodePtr tmp(AllocHolder::create_node(boost::forward<MovableConvertible>(mv)));
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
|
iterator ret(this->icont().insert_equal(this->icont().end(), *tmp));
|
|
destroy_deallocator.release();
|
|
return ret;
|
|
}
|
|
|
|
iterator insert_equal(const_iterator hint, const value_type& v)
|
|
{
|
|
NodePtr tmp(AllocHolder::create_node(v));
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
|
iterator ret(this->icont().insert_equal(hint.get(), *tmp));
|
|
destroy_deallocator.release();
|
|
return ret;
|
|
}
|
|
|
|
template<class MovableConvertible>
|
|
iterator insert_equal(const_iterator hint, BOOST_FWD_REF(MovableConvertible) mv)
|
|
{
|
|
NodePtr tmp(AllocHolder::create_node(boost::forward<MovableConvertible>(mv)));
|
|
scoped_destroy_deallocator<NodeAlloc> destroy_deallocator(tmp, this->node_alloc());
|
|
iterator ret(this->icont().insert_equal(hint.get(), *tmp));
|
|
destroy_deallocator.release();
|
|
return ret;
|
|
}
|
|
|
|
template <class InputIterator>
|
|
void insert_equal(InputIterator first, InputIterator last)
|
|
{
|
|
for( ; first != last; ++first)
|
|
this->insert_equal(*first);
|
|
}
|
|
|
|
iterator erase(const_iterator position)
|
|
{ return iterator(this->icont().erase_and_dispose(position.get(), Destroyer(this->node_alloc()))); }
|
|
|
|
size_type erase(const key_type& k)
|
|
{ return AllocHolder::erase_key(k, KeyNodeCompare(value_comp()), alloc_version()); }
|
|
|
|
iterator erase(const_iterator first, const_iterator last)
|
|
{ return iterator(AllocHolder::erase_range(first.get(), last.get(), alloc_version())); }
|
|
|
|
void clear()
|
|
{ AllocHolder::clear(alloc_version()); }
|
|
|
|
// search operations. Const and non-const overloads even if no iterator is returned
|
|
// so splay implementations can to their rebalancing when searching in non-const versions
|
|
iterator find(const key_type& k)
|
|
{ return iterator(this->icont().find(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
const_iterator find(const key_type& k) const
|
|
{ return const_iterator(this->non_const_icont().find(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
size_type count(const key_type& k) const
|
|
{ return size_type(this->icont().count(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
iterator lower_bound(const key_type& k)
|
|
{ return iterator(this->icont().lower_bound(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
const_iterator lower_bound(const key_type& k) const
|
|
{ return const_iterator(this->non_const_icont().lower_bound(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
iterator upper_bound(const key_type& k)
|
|
{ return iterator(this->icont().upper_bound(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
const_iterator upper_bound(const key_type& k) const
|
|
{ return const_iterator(this->non_const_icont().upper_bound(k, KeyNodeCompare(value_comp()))); }
|
|
|
|
std::pair<iterator,iterator> equal_range(const key_type& k)
|
|
{
|
|
std::pair<iiterator, iiterator> ret =
|
|
this->icont().equal_range(k, KeyNodeCompare(value_comp()));
|
|
return std::pair<iterator,iterator>(iterator(ret.first), iterator(ret.second));
|
|
}
|
|
|
|
std::pair<const_iterator, const_iterator> equal_range(const key_type& k) const
|
|
{
|
|
std::pair<iiterator, iiterator> ret =
|
|
this->non_const_icont().equal_range(k, KeyNodeCompare(value_comp()));
|
|
return std::pair<const_iterator,const_iterator>
|
|
(const_iterator(ret.first), const_iterator(ret.second));
|
|
}
|
|
|
|
std::pair<iterator,iterator> lower_bound_range(const key_type& k)
|
|
{
|
|
std::pair<iiterator, iiterator> ret =
|
|
this->icont().lower_bound_range(k, KeyNodeCompare(value_comp()));
|
|
return std::pair<iterator,iterator>(iterator(ret.first), iterator(ret.second));
|
|
}
|
|
|
|
std::pair<const_iterator, const_iterator> lower_bound_range(const key_type& k) const
|
|
{
|
|
std::pair<iiterator, iiterator> ret =
|
|
this->non_const_icont().lower_bound_range(k, KeyNodeCompare(value_comp()));
|
|
return std::pair<const_iterator,const_iterator>
|
|
(const_iterator(ret.first), const_iterator(ret.second));
|
|
}
|
|
|
|
void rebalance()
|
|
{ intrusive_tree_proxy_t::rebalance(this->icont()); }
|
|
|
|
friend bool operator==(const tree& x, const tree& y)
|
|
{ return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); }
|
|
|
|
friend bool operator<(const tree& x, const tree& y)
|
|
{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
|
|
|
|
friend bool operator!=(const tree& x, const tree& y)
|
|
{ return !(x == y); }
|
|
|
|
friend bool operator>(const tree& x, const tree& y)
|
|
{ return y < x; }
|
|
|
|
friend bool operator<=(const tree& x, const tree& y)
|
|
{ return !(y < x); }
|
|
|
|
friend bool operator>=(const tree& x, const tree& y)
|
|
{ return !(x < y); }
|
|
|
|
friend void swap(tree& x, tree& y)
|
|
{ x.swap(y); }
|
|
};
|
|
|
|
} //namespace container_detail {
|
|
} //namespace container {
|
|
/*
|
|
//!has_trivial_destructor_after_move<> == true_type
|
|
//!specialization for optimizations
|
|
template <class K, class V, class KOV,
|
|
class C, class A>
|
|
struct has_trivial_destructor_after_move
|
|
<boost::container::container_detail::tree<K, V, KOV, C, A> >
|
|
{
|
|
static const bool value = has_trivial_destructor_after_move<A>::value && has_trivial_destructor_after_move<C>::value;
|
|
};
|
|
*/
|
|
} //namespace boost {
|
|
|
|
#include <boost/container/detail/config_end.hpp>
|
|
|
|
#endif //BOOST_CONTAINER_TREE_HPP
|