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Editing: node.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_/node.hpp * Contains an implementation for rb_tree_. */ #ifndef PB_DS_RB_TREE_NODE_HPP #define PB_DS_RB_TREE_NODE_HPP #include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp> namespace __gnu_pbds { namespace detail { /// Node for Red-Black trees. template<typename Value_Type, class Metadata, typename _Alloc> struct rb_tree_node_ { public: typedef Value_Type value_type; typedef Metadata metadata_type; typedef typename _Alloc::template rebind< rb_tree_node_< Value_Type, Metadata, _Alloc> >::other::pointer node_pointer; typedef typename _Alloc::template rebind< metadata_type>::other::reference metadata_reference; typedef typename _Alloc::template rebind< metadata_type>::other::const_reference metadata_const_reference; bool special() const { return m_red; } metadata_const_reference get_metadata() const { return m_metadata; } metadata_reference get_metadata() { return m_metadata; } #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ void trace() const { std::cout << PB_DS_V2F(m_value) <<(m_red? " <r> " : " <b> ") << "(" << m_metadata << ")"; } #endif node_pointer m_p_left; node_pointer m_p_right; node_pointer m_p_parent; value_type m_value; bool m_red; metadata_type m_metadata; }; template<typename Value_Type, typename _Alloc> struct rb_tree_node_<Value_Type, null_type, _Alloc> { public: typedef Value_Type value_type; typedef null_type metadata_type; typedef typename _Alloc::template rebind< rb_tree_node_< Value_Type, null_type, _Alloc> >::other::pointer node_pointer; bool special() const { return m_red; } #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ void trace() const { std::cout << PB_DS_V2F(m_value) <<(m_red? " <r> " : " <b> "); } #endif node_pointer m_p_left; node_pointer m_p_right; node_pointer m_p_parent; value_type m_value; bool m_red; }; } // namespace detail } // namespace __gnu_pbds #endif
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