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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
a945c346 | 3 | // Copyright (C) 2005-2024 Free Software Foundation, Inc. |
4569a895 AT |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the terms | |
7 | // of the GNU General Public License as published by the Free Software | |
748086b7 | 8 | // Foundation; either version 3, or (at your option) any later |
4569a895 AT |
9 | // version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, but | |
12 | // WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | // General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
4569a895 AT |
24 | |
25 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
26 | ||
27 | // Permission to use, copy, modify, sell, and distribute this software | |
28 | // is hereby granted without fee, provided that the above copyright | |
29 | // notice appears in all copies, and that both that copyright notice | |
30 | // and this permission notice appear in supporting documentation. None | |
31 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
32 | // representation about the suitability of this software for any | |
33 | // purpose. It is provided "as is" without express or implied | |
34 | // warranty. | |
35 | ||
36 | /** | |
a345e45d | 37 | * @file splay_tree_/node.hpp |
4569a895 AT |
38 | * Contains an implementation struct for splay_tree_'s node. |
39 | */ | |
40 | ||
41 | #ifndef PB_DS_SPLAY_TREE_NODE_HPP | |
42 | #define PB_DS_SPLAY_TREE_NODE_HPP | |
43 | ||
5e11f978 | 44 | namespace __gnu_pbds |
4569a895 AT |
45 | { |
46 | namespace detail | |
47 | { | |
a345e45d BK |
48 | /// Node for splay tree. |
49 | template<typename Value_Type, class Metadata, typename _Alloc> | |
4569a895 AT |
50 | struct splay_tree_node_ |
51 | { | |
52 | public: | |
1b24692f BK |
53 | typedef Value_Type value_type; |
54 | typedef Metadata metadata_type; | |
55 | ||
ec541f1b JW |
56 | typedef typename rebind_traits<_Alloc, splay_tree_node_>::pointer |
57 | node_pointer; | |
4569a895 | 58 | |
ec541f1b JW |
59 | typedef typename rebind_traits<_Alloc, metadata_type>::reference |
60 | metadata_reference; | |
4569a895 | 61 | |
ec541f1b JW |
62 | typedef typename rebind_traits<_Alloc, metadata_type>::const_reference |
63 | metadata_const_reference; | |
4569a895 AT |
64 | |
65 | #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ | |
66 | void | |
67 | trace() const | |
1b24692f BK |
68 | { std::cout << PB_DS_V2F(m_value) << "(" << m_metadata << ")"; } |
69 | #endif | |
4569a895 | 70 | |
4569a895 AT |
71 | inline bool |
72 | special() const | |
1b24692f | 73 | { return m_special; } |
4569a895 | 74 | |
a345e45d | 75 | inline metadata_const_reference |
4569a895 | 76 | get_metadata() const |
1b24692f | 77 | { return m_metadata; } |
4569a895 AT |
78 | |
79 | inline metadata_reference | |
80 | get_metadata() | |
1b24692f | 81 | { return m_metadata; } |
4569a895 AT |
82 | |
83 | value_type m_value; | |
4569a895 | 84 | bool m_special; |
4569a895 AT |
85 | node_pointer m_p_left; |
86 | node_pointer m_p_right; | |
4569a895 | 87 | node_pointer m_p_parent; |
4569a895 AT |
88 | metadata_type m_metadata; |
89 | }; | |
90 | ||
a345e45d BK |
91 | template<typename Value_Type, typename _Alloc> |
92 | struct splay_tree_node_<Value_Type, null_type, _Alloc> | |
4569a895 AT |
93 | { |
94 | public: | |
1b24692f | 95 | typedef Value_Type value_type; |
a345e45d | 96 | typedef null_type metadata_type; |
1b24692f | 97 | |
ec541f1b JW |
98 | typedef typename rebind_traits<_Alloc, splay_tree_node_>::pointer |
99 | node_pointer; | |
4569a895 | 100 | |
4569a895 AT |
101 | inline bool |
102 | special() const | |
1b24692f | 103 | { return m_special; } |
4569a895 AT |
104 | |
105 | #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ | |
106 | void | |
107 | trace() const | |
1b24692f BK |
108 | { std::cout << PB_DS_V2F(m_value); } |
109 | #endif | |
4569a895 | 110 | |
4569a895 AT |
111 | node_pointer m_p_left; |
112 | node_pointer m_p_right; | |
4569a895 | 113 | node_pointer m_p_parent; |
4569a895 | 114 | value_type m_value; |
4569a895 AT |
115 | bool m_special; |
116 | }; | |
4569a895 | 117 | } // namespace detail |
5e11f978 | 118 | } // namespace __gnu_pbds |
4569a895 | 119 | |
1b24692f | 120 | #endif |