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// -*- C++ -*- |
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// Copyright (C) 2005-2013 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. |
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// 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. |
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// 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. |
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/** |
* @file rb_tree_map_/node.hpp |
* Contains an implementation for rb_tree_. |
*/ |
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#ifndef PB_DS_RB_TREE_NODE_HPP |
#define PB_DS_RB_TREE_NODE_HPP |
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#include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp> |
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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; |
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typedef |
typename _Alloc::template rebind< |
metadata_type>::other::reference |
metadata_reference; |
|
typedef |
typename _Alloc::template rebind< |
metadata_type>::other::const_reference |
metadata_const_reference; |
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bool |
special() const |
{ return m_red; } |
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metadata_const_reference |
get_metadata() const |
{ return m_metadata; } |
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metadata_reference |
get_metadata() |
{ return m_metadata; } |
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#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; |
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bool |
special() const |
{ return m_red; } |
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#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ |
void |
trace() const |
{ std::cout << PB_DS_V2F(m_value) <<(m_red? " <r> " : " <b> "); } |
#endif |
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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 |
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#endif |