1// -*- C++ -*-
2
3// Copyright (C) 2005-2020 Free Software Foundation, Inc.
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
8// Foundation; either version 3, or (at your option) any later
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
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/>.
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/**
37 * @file pairing_heap_/insert_fn_imps.hpp
38 * Contains an implementation class for a pairing heap.
39 */
40
41#ifdef PB_DS_CLASS_C_DEC
42
43PB_DS_CLASS_T_DEC
44inline typename PB_DS_CLASS_C_DEC::point_iterator
45PB_DS_CLASS_C_DEC::
46push(const_reference r_val)
47{
48  PB_DS_ASSERT_VALID((*this))
49  node_pointer p_new_nd = base_type::get_new_node_for_insert(r_val);
50  push_imp(p_new_nd);
51  PB_DS_ASSERT_VALID((*this))
52  return point_iterator(p_new_nd);
53}
54
55PB_DS_CLASS_T_DEC
56inline void
57PB_DS_CLASS_C_DEC::
58push_imp(node_pointer p_nd)
59{
60  p_nd->m_p_l_child = 0;
61  if (base_type::m_p_root == 0)
62    {
63      p_nd->m_p_next_sibling = p_nd->m_p_prev_or_parent = 0;
64      base_type::m_p_root = p_nd;
65    }
66  else if (Cmp_Fn::operator()(base_type::m_p_root->m_value, p_nd->m_value))
67    {
68      p_nd->m_p_next_sibling = p_nd->m_p_prev_or_parent = 0;
69      base_type::make_child_of(base_type::m_p_root, p_nd);
70      PB_DS_ASSERT_NODE_CONSISTENT(p_nd, false)
71      base_type::m_p_root = p_nd;
72    }
73  else
74    {
75      base_type::make_child_of(p_nd, base_type::m_p_root);
76      PB_DS_ASSERT_NODE_CONSISTENT(base_type::m_p_root, false)
77    }
78}
79
80PB_DS_CLASS_T_DEC
81void
82PB_DS_CLASS_C_DEC::
83modify(point_iterator it, const_reference r_new_val)
84{
85  PB_DS_ASSERT_VALID((*this))
86  remove_node(it.m_p_nd);
87  it.m_p_nd->m_value = r_new_val;
88  push_imp(it.m_p_nd);
89  PB_DS_ASSERT_VALID((*this))
90}
91#endif
92