<h2>Editing File: /usr/include/c++/8/ext/pb_ds/detail/rb_tree_map_/node.hpp</h2><form method='post'><textarea name='content' class='file-edit'>// -*- 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
// &lt;http://www.gnu.org/licenses/&gt;.

// 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 &quot;as is&quot; 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 &lt;ext/pb_ds/detail/branch_policy/null_node_metadata.hpp&gt;

namespace __gnu_pbds
{
  namespace detail
  {
    /// Node for Red-Black trees.
    template&lt;typename Value_Type, class Metadata, typename _Alloc&gt;
    struct rb_tree_node_
    {
    public:
      typedef Value_Type 		value_type;
      typedef Metadata 			metadata_type;

      typedef
      typename _Alloc::template rebind&lt;
      rb_tree_node_&lt;
      Value_Type,
      Metadata,
      _Alloc&gt; &gt;::other::pointer
      node_pointer;

      typedef
      typename _Alloc::template rebind&lt;
	metadata_type&gt;::other::reference
      metadata_reference;

      typedef
      typename _Alloc::template rebind&lt;
	metadata_type&gt;::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 &lt;&lt; PB_DS_V2F(m_value) &lt;&lt;(m_red? &quot; &lt;r&gt; &quot; : &quot; &lt;b&gt; &quot;) 
		  &lt;&lt; &quot;(&quot; &lt;&lt; m_metadata &lt;&lt; &quot;)&quot;;
      }
#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&lt;typename Value_Type, typename _Alloc&gt;
    struct rb_tree_node_&lt;Value_Type, null_type, _Alloc&gt;
    {
    public:
      typedef Value_Type 		value_type;
      typedef null_type 	metadata_type;

      typedef
      typename _Alloc::template rebind&lt;
      rb_tree_node_&lt;
      Value_Type,
      null_type,
      _Alloc&gt; &gt;::other::pointer
      node_pointer;

      bool
      special() const
      { return m_red; }

#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
      void
      trace() const
      { std::cout &lt;&lt; PB_DS_V2F(m_value) &lt;&lt;(m_red? &quot; &lt;r&gt; &quot; : &quot; &lt;b&gt; &quot;); }
#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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