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1// -*- C++ -*-
2
aa118a03 3// Copyright (C) 2005-2014 Free Software Foundation, Inc.
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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
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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
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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/>.
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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 pairing_heap_/insert_fn_imps.hpp
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38 * Contains an implementation class for a pairing heap.
39 */
40
41PB_DS_CLASS_T_DEC
42inline typename PB_DS_CLASS_C_DEC::point_iterator
43PB_DS_CLASS_C_DEC::
44push(const_reference r_val)
45{
f5886803 46 PB_DS_ASSERT_VALID((*this))
f5886803 47 node_pointer p_new_nd = base_type::get_new_node_for_insert(r_val);
4569a895 48 push_imp(p_new_nd);
f5886803 49 PB_DS_ASSERT_VALID((*this))
f5886803 50 return point_iterator(p_new_nd);
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51}
52
53PB_DS_CLASS_T_DEC
54inline void
55PB_DS_CLASS_C_DEC::
56push_imp(node_pointer p_nd)
57{
8fc81078 58 p_nd->m_p_l_child = 0;
8fc81078 59 if (base_type::m_p_root == 0)
4569a895 60 {
8fc81078 61 p_nd->m_p_next_sibling = p_nd->m_p_prev_or_parent = 0;
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62 base_type::m_p_root = p_nd;
63 }
64 else if (Cmp_Fn::operator()(base_type::m_p_root->m_value, p_nd->m_value))
65 {
8fc81078 66 p_nd->m_p_next_sibling = p_nd->m_p_prev_or_parent = 0;
4569a895 67 base_type::make_child_of(base_type::m_p_root, p_nd);
f5886803 68 PB_DS_ASSERT_NODE_CONSISTENT(p_nd, false)
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69 base_type::m_p_root = p_nd;
70 }
71 else
72 {
73 base_type::make_child_of(p_nd, base_type::m_p_root);
f5886803 74 PB_DS_ASSERT_NODE_CONSISTENT(base_type::m_p_root, false)
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75 }
76}
77
78PB_DS_CLASS_T_DEC
79void
80PB_DS_CLASS_C_DEC::
81modify(point_iterator it, const_reference r_new_val)
82{
f5886803 83 PB_DS_ASSERT_VALID((*this))
f5886803 84 remove_node(it.m_p_nd);
4569a895 85 it.m_p_nd->m_value = r_new_val;
4569a895 86 push_imp(it.m_p_nd);
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87 PB_DS_ASSERT_VALID((*this))
88}