3 // Copyright (C) 2005-2019 Free Software Foundation, Inc.
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
8 // Foundation; either version 3, or (at your option) any later
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.
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.
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/>.
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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
37 * @file rb_tree_map_/insert_fn_imps.hpp
38 * Contains an implementation for rb_tree_.
41 #ifdef PB_DS_CLASS_C_DEC
44 inline std::pair
<typename
PB_DS_CLASS_C_DEC::point_iterator
, bool>
46 insert(const_reference r_value
)
48 PB_DS_ASSERT_VALID((*this))
49 std::pair
<point_iterator
, bool> ins_pair
= base_type::insert_leaf(r_value
);
50 if (ins_pair
.second
== true)
52 ins_pair
.first
.m_p_nd
->m_red
= true;
53 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this))
54 insert_fixup(ins_pair
.first
.m_p_nd
);
57 PB_DS_ASSERT_VALID((*this))
64 insert_fixup(node_pointer p_nd
)
66 _GLIBCXX_DEBUG_ASSERT(p_nd
->m_red
== true);
67 while (p_nd
!= base_type::m_p_head
->m_p_parent
&& p_nd
->m_p_parent
->m_red
)
69 if (p_nd
->m_p_parent
== p_nd
->m_p_parent
->m_p_parent
->m_p_left
)
71 node_pointer p_y
= p_nd
->m_p_parent
->m_p_parent
->m_p_right
;
72 if (p_y
!= 0 && p_y
->m_red
)
74 p_nd
->m_p_parent
->m_red
= false;
76 p_nd
->m_p_parent
->m_p_parent
->m_red
= true;
77 p_nd
= p_nd
->m_p_parent
->m_p_parent
;
81 if (p_nd
== p_nd
->m_p_parent
->m_p_right
)
83 p_nd
= p_nd
->m_p_parent
;
84 base_type::rotate_left(p_nd
);
86 p_nd
->m_p_parent
->m_red
= false;
87 p_nd
->m_p_parent
->m_p_parent
->m_red
= true;
88 base_type::rotate_right(p_nd
->m_p_parent
->m_p_parent
);
93 node_pointer p_y
= p_nd
->m_p_parent
->m_p_parent
->m_p_left
;
94 if (p_y
!= 0 && p_y
->m_red
)
96 p_nd
->m_p_parent
->m_red
= false;
98 p_nd
->m_p_parent
->m_p_parent
->m_red
= true;
99 p_nd
= p_nd
->m_p_parent
->m_p_parent
;
103 if (p_nd
== p_nd
->m_p_parent
->m_p_left
)
105 p_nd
= p_nd
->m_p_parent
;
106 base_type::rotate_right(p_nd
);
108 p_nd
->m_p_parent
->m_red
= false;
109 p_nd
->m_p_parent
->m_p_parent
->m_red
= true;
110 base_type::rotate_left(p_nd
->m_p_parent
->m_p_parent
);
115 base_type::update_to_top(p_nd
, (node_update
* )this);
116 base_type::m_p_head
->m_p_parent
->m_red
= false;