Edit File: bin_search_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 bin_search_tree_/bin_search_tree_.hpp * Contains an implementation class for binary search tree. */ #include <ext/pb_ds/exception.hpp> #include <ext/pb_ds/tree_policy.hpp> #include <ext/pb_ds/detail/eq_fn/eq_by_less.hpp> #include <ext/pb_ds/detail/types_traits.hpp> #include <ext/pb_ds/detail/cond_dealtor.hpp> #include <ext/pb_ds/detail/type_utils.hpp> #include <ext/pb_ds/detail/tree_trace_base.hpp> #ifdef _GLIBCXX_DEBUG #include <ext/pb_ds/detail/debug_map_base.hpp> #endif #include <utility> #include <functional> #include <debug/debug.h> namespace __gnu_pbds { namespace detail { #ifdef PB_DS_DATA_TRUE_INDICATOR #define PB_DS_BIN_TREE_NAME bin_search_tree_map #endif #ifdef PB_DS_DATA_FALSE_INDICATOR #define PB_DS_BIN_TREE_NAME bin_search_tree_set #endif #define PB_DS_CLASS_T_DEC \ template<typename Key, typename Mapped, typename Cmp_Fn, \ typename Node_And_It_Traits, typename _Alloc> #define PB_DS_CLASS_C_DEC \ PB_DS_BIN_TREE_NAME<Key, Mapped, Cmp_Fn, Node_And_It_Traits, _Alloc> #define PB_DS_BIN_TREE_TRAITS_BASE \ types_traits<Key, Mapped, _Alloc, false> #ifdef _GLIBCXX_DEBUG #define PB_DS_DEBUG_MAP_BASE_C_DEC \ debug_map_base<Key, eq_by_less<Key, Cmp_Fn>, \ typename _Alloc::template rebind<Key>::other::const_reference> #endif #ifdef PB_DS_TREE_TRACE #define PB_DS_TREE_TRACE_BASE_C_DEC \ tree_trace_base<typename Node_And_It_Traits::node_const_iterator, \ typename Node_And_It_Traits::node_iterator, \ Cmp_Fn, true, _Alloc> #endif /* * @brief Binary search tree (BST). * * 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_BIN_TREE_NAME : #ifdef _GLIBCXX_DEBUG public PB_DS_DEBUG_MAP_BASE_C_DEC, #endif #ifdef PB_DS_TREE_TRACE public PB_DS_TREE_TRACE_BASE_C_DEC, #endif public Cmp_Fn, public PB_DS_BIN_TREE_TRAITS_BASE, public Node_And_It_Traits::node_update { typedef Node_And_It_Traits traits_type; protected: typedef PB_DS_BIN_TREE_TRAITS_BASE traits_base; typedef typename _Alloc::template rebind<typename traits_type::node>::other node_allocator; typedef typename node_allocator::value_type node; typedef typename node_allocator::pointer node_pointer; typedef typename traits_type::null_node_update_pointer null_node_update_pointer; private: typedef cond_dealtor<node, _Alloc> cond_dealtor_t; #ifdef _GLIBCXX_DEBUG typedef PB_DS_DEBUG_MAP_BASE_C_DEC debug_base; #endif public: typedef typename _Alloc::size_type size_type; typedef typename _Alloc::difference_type difference_type; typedef typename traits_base::key_type key_type; typedef typename traits_base::key_pointer key_pointer; typedef typename traits_base::key_const_pointer key_const_pointer; typedef typename traits_base::key_reference key_reference; typedef typename traits_base::key_const_reference key_const_reference; #ifdef PB_DS_DATA_TRUE_INDICATOR typedef typename traits_base::mapped_type mapped_type; typedef typename traits_base::mapped_pointer mapped_pointer; typedef typename traits_base::mapped_const_pointer mapped_const_pointer; typedef typename traits_base::mapped_reference mapped_reference; typedef typename traits_base::mapped_const_reference mapped_const_reference; #endif typedef typename traits_base::value_type value_type; typedef typename traits_base::pointer pointer; typedef typename traits_base::const_pointer const_pointer; typedef typename traits_base::reference reference; typedef typename traits_base::const_reference const_reference; typedef typename traits_type::point_const_iterator point_const_iterator; typedef point_const_iterator const_iterator; typedef typename traits_type::point_iterator point_iterator; typedef point_iterator iterator; typedef typename traits_type::const_reverse_iterator const_reverse_iterator; typedef typename traits_type::reverse_iterator reverse_iterator; typedef typename traits_type::node_const_iterator node_const_iterator; typedef typename traits_type::node_iterator node_iterator; typedef typename traits_type::node_update node_update; typedef Cmp_Fn cmp_fn; typedef _Alloc allocator_type; PB_DS_BIN_TREE_NAME(); PB_DS_BIN_TREE_NAME(const Cmp_Fn&); PB_DS_BIN_TREE_NAME(const Cmp_Fn&, const node_update&); PB_DS_BIN_TREE_NAME(const PB_DS_CLASS_C_DEC&); void swap(PB_DS_CLASS_C_DEC&); ~PB_DS_BIN_TREE_NAME(); inline bool empty() const; inline size_type size() const; inline size_type max_size() const; Cmp_Fn& get_cmp_fn(); const Cmp_Fn& get_cmp_fn() const; inline point_iterator lower_bound(key_const_reference); inline point_const_iterator lower_bound(key_const_reference) const; inline point_iterator upper_bound(key_const_reference); inline point_const_iterator upper_bound(key_const_reference) const; inline point_iterator find(key_const_reference); inline point_const_iterator find(key_const_reference) const; inline iterator begin(); inline const_iterator begin() const; inline iterator end(); inline const_iterator end() const; inline reverse_iterator rbegin(); inline const_reverse_iterator rbegin() const; inline reverse_iterator rend(); inline const_reverse_iterator rend() const; /// Returns a const node_iterator corresponding to the node at the /// root of the tree. inline node_const_iterator node_begin() const; /// Returns a node_iterator corresponding to the node at the /// root of the tree. inline node_iterator node_begin(); /// Returns a const node_iterator corresponding to a node just /// after a leaf of the tree. inline node_const_iterator node_end() const; /// Returns a node_iterator corresponding to a node just /// after a leaf of the tree. inline node_iterator node_end(); void clear(); protected: void value_swap(PB_DS_CLASS_C_DEC&); void initialize_min_max(); inline iterator insert_imp_empty(const_reference); inline iterator insert_leaf_new(const_reference, node_pointer, bool); inline node_pointer get_new_node_for_leaf_insert(const_reference, false_type); inline node_pointer get_new_node_for_leaf_insert(const_reference, true_type); inline void actual_erase_node(node_pointer); inline std::pair<node_pointer, bool> erase(node_pointer); inline void update_min_max_for_erased_node(node_pointer); static void clear_imp(node_pointer); inline std::pair<point_iterator, bool> insert_leaf(const_reference); inline void rotate_left(node_pointer); inline void rotate_right(node_pointer); inline void rotate_parent(node_pointer); inline void apply_update(node_pointer, null_node_update_pointer); template<typename Node_Update_> inline void apply_update(node_pointer, Node_Update_*); inline void update_to_top(node_pointer, null_node_update_pointer); template<typename Node_Update_> inline void update_to_top(node_pointer, Node_Update_*); bool join_prep(PB_DS_CLASS_C_DEC&); void join_finish(PB_DS_CLASS_C_DEC&); bool split_prep(key_const_reference, PB_DS_CLASS_C_DEC&); void split_finish(PB_DS_CLASS_C_DEC&); size_type recursive_count(node_pointer) const; #ifdef _GLIBCXX_DEBUG void assert_valid(const char*, int) const; void structure_only_assert_valid(const char*, int) const; void assert_node_consistent(const node_pointer, const char*, int) const; #endif private: #ifdef _GLIBCXX_DEBUG void assert_iterators(const char*, int) const; void assert_consistent_with_debug_base(const char*, int) const; void assert_node_consistent_with_left(const node_pointer, const char*, int) const; void assert_node_consistent_with_right(const node_pointer, const char*, int) const; void assert_consistent_with_debug_base(const node_pointer, const char*, int) const; void assert_min(const char*, int) const; void assert_min_imp(const node_pointer, const char*, int) const; void assert_max(const char*, int) const; void assert_max_imp(const node_pointer, const char*, int) const; void assert_size(const char*, int) const; typedef std::pair<const_pointer, const_pointer> node_consistent_t; node_consistent_t assert_node_consistent_(const node_pointer, const char*, int) const; #endif void initialize(); node_pointer recursive_copy_node(const node_pointer); protected: node_pointer m_p_head; size_type m_size; static node_allocator s_node_allocator; }; #define PB_DS_STRUCT_ONLY_ASSERT_VALID(X) \ _GLIBCXX_DEBUG_ONLY(X.structure_only_assert_valid(__FILE__, __LINE__);) #define PB_DS_ASSERT_NODE_CONSISTENT(_Node) \ _GLIBCXX_DEBUG_ONLY(assert_node_consistent(_Node, __FILE__, __LINE__);) #include <ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp> #include <ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp> #undef PB_DS_ASSERT_NODE_CONSISTENT #undef PB_DS_STRUCT_ONLY_ASSERT_VALID #undef PB_DS_CLASS_C_DEC #undef PB_DS_CLASS_T_DEC #undef PB_DS_BIN_TREE_NAME #undef PB_DS_BIN_TREE_TRAITS_BASE #undef PB_DS_DEBUG_MAP_BASE_C_DEC #ifdef PB_DS_TREE_TRACE #undef PB_DS_TREE_TRACE_BASE_C_DEC #endif } // namespace detail } // namespace __gnu_pbds
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