Edit File: rb_tree_.hpp
// -*- C++ -*- // Copyright (C) 2005-2018 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 3, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file rb_tree_map_/rb_tree_.hpp * Contains an implementation for Red Black trees. */ #include <ext/pb_ds/detail/standard_policies.hpp> #include <utility> #include <vector> #include <assert.h> #include <debug/debug.h> namespace __gnu_pbds { namespace detail { #define PB_DS_CLASS_T_DEC \ template<typename Key, typename Mapped, typename Cmp_Fn, \ typename Node_And_It_Traits, typename _Alloc> #ifdef PB_DS_DATA_TRUE_INDICATOR # define PB_DS_RB_TREE_NAME rb_tree_map # define PB_DS_RB_TREE_BASE_NAME bin_search_tree_map #endif #ifdef PB_DS_DATA_FALSE_INDICATOR # define PB_DS_RB_TREE_NAME rb_tree_set # define PB_DS_RB_TREE_BASE_NAME bin_search_tree_set #endif #define PB_DS_CLASS_C_DEC \ PB_DS_RB_TREE_NAME<Key, Mapped, Cmp_Fn, Node_And_It_Traits, _Alloc> #define PB_DS_RB_TREE_BASE \ PB_DS_RB_TREE_BASE_NAME<Key, Mapped, Cmp_Fn, Node_And_It_Traits, _Alloc> /** * @brief Red-Black tree. * @ingroup branch-detail * * This implementation uses an idea from the SGI STL (using a * @a header node which is needed for efficient iteration). */ template<typename Key, typename Mapped, typename Cmp_Fn, typename Node_And_It_Traits, typename _Alloc> class PB_DS_RB_TREE_NAME : public PB_DS_RB_TREE_BASE { private: typedef PB_DS_RB_TREE_BASE base_type; typedef typename base_type::node_pointer node_pointer; public: typedef rb_tree_tag container_category; typedef Cmp_Fn cmp_fn; typedef _Alloc allocator_type; typedef typename _Alloc::size_type size_type; typedef typename _Alloc::difference_type difference_type; typedef typename base_type::key_type key_type; typedef typename base_type::key_pointer key_pointer; typedef typename base_type::key_const_pointer key_const_pointer; typedef typename base_type::key_reference key_reference; typedef typename base_type::key_const_reference key_const_reference; typedef typename base_type::mapped_type mapped_type; typedef typename base_type::mapped_pointer mapped_pointer; typedef typename base_type::mapped_const_pointer mapped_const_pointer; typedef typename base_type::mapped_reference mapped_reference; typedef typename base_type::mapped_const_reference mapped_const_reference; typedef typename base_type::value_type value_type; typedef typename base_type::pointer pointer; typedef typename base_type::const_pointer const_pointer; typedef typename base_type::reference reference; typedef typename base_type::const_reference const_reference; typedef typename base_type::point_iterator point_iterator; typedef typename base_type::const_iterator point_const_iterator; typedef typename base_type::iterator iterator; typedef typename base_type::const_iterator const_iterator; typedef typename base_type::reverse_iterator reverse_iterator; typedef typename base_type::const_reverse_iterator const_reverse_iterator; typedef typename base_type::node_update node_update; PB_DS_RB_TREE_NAME(); PB_DS_RB_TREE_NAME(const Cmp_Fn&); PB_DS_RB_TREE_NAME(const Cmp_Fn&, const node_update&); PB_DS_RB_TREE_NAME(const PB_DS_CLASS_C_DEC&); void swap(PB_DS_CLASS_C_DEC&); template<typename It> void copy_from_range(It, It); inline std::pair<point_iterator, bool> insert(const_reference); inline mapped_reference operator[](key_const_reference r_key) { #ifdef PB_DS_DATA_TRUE_INDICATOR _GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);) std::pair<point_iterator, bool> ins_pair = base_type::insert_leaf(value_type(r_key, mapped_type())); if (ins_pair.second == true) { ins_pair.first.m_p_nd->m_red = true; _GLIBCXX_DEBUG_ONLY(this->structure_only_assert_valid(__FILE__, __LINE__);) insert_fixup(ins_pair.first.m_p_nd); } _GLIBCXX_DEBUG_ONLY(assert_valid(__FILE__, __LINE__);) return ins_pair.first.m_p_nd->m_value.second; #else insert(r_key); return base_type::s_null_type; #endif } inline bool erase(key_const_reference); inline iterator erase(iterator); inline reverse_iterator erase(reverse_iterator); template<typename Pred> inline size_type erase_if(Pred); void join(PB_DS_CLASS_C_DEC&); void split(key_const_reference, PB_DS_CLASS_C_DEC&); private: #ifdef _GLIBCXX_DEBUG void assert_valid(const char*, int) const; size_type assert_node_consistent(const node_pointer, const char*, int) const; #endif inline static bool is_effectively_black(const node_pointer); void initialize(); void insert_fixup(node_pointer); void erase_node(node_pointer); void remove_node(node_pointer); void remove_fixup(node_pointer, node_pointer); void split_imp(node_pointer, PB_DS_CLASS_C_DEC&); inline node_pointer split_min(); std::pair<node_pointer, node_pointer> split_min_imp(); void join_imp(node_pointer, node_pointer); std::pair<node_pointer, node_pointer> find_join_pos_right(node_pointer, size_type, size_type); std::pair<node_pointer, node_pointer> find_join_pos_left(node_pointer, size_type, size_type); inline size_type black_height(node_pointer); void split_at_node(node_pointer, PB_DS_CLASS_C_DEC&); }; #define PB_DS_STRUCT_ONLY_ASSERT_VALID(X) \ _GLIBCXX_DEBUG_ONLY(X.structure_only_assert_valid(__FILE__, __LINE__);) #include <ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp> #include <ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp> #include <ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp> #include <ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp> #include <ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp> #include <ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp> #undef PB_DS_STRUCT_ONLY_ASSERT_VALID #undef PB_DS_CLASS_T_DEC #undef PB_DS_CLASS_C_DEC #undef PB_DS_RB_TREE_NAME #undef PB_DS_RB_TREE_BASE_NAME #undef PB_DS_RB_TREE_BASE } // namespace detail } // namespace __gnu_pbds
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