| 1 |
35 |
ultra_embe |
// -*- C++ -*-
|
| 2 |
|
|
|
| 3 |
|
|
// Copyright (C) 2005, 2006, 2009, 2010, 2011 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 bin_search_tree_/rotate_fn_imps.hpp
|
| 38 |
|
|
* Contains imps for rotating nodes.
|
| 39 |
|
|
*/
|
| 40 |
|
|
|
| 41 |
|
|
PB_DS_CLASS_T_DEC
|
| 42 |
|
|
inline void
|
| 43 |
|
|
PB_DS_CLASS_C_DEC::
|
| 44 |
|
|
rotate_left(node_pointer p_x)
|
| 45 |
|
|
{
|
| 46 |
|
|
node_pointer p_y = p_x->m_p_right;
|
| 47 |
|
|
|
| 48 |
|
|
p_x->m_p_right = p_y->m_p_left;
|
| 49 |
|
|
|
| 50 |
|
|
if (p_y->m_p_left != 0)
|
| 51 |
|
|
p_y->m_p_left->m_p_parent = p_x;
|
| 52 |
|
|
|
| 53 |
|
|
p_y->m_p_parent = p_x->m_p_parent;
|
| 54 |
|
|
|
| 55 |
|
|
if (p_x == m_p_head->m_p_parent)
|
| 56 |
|
|
m_p_head->m_p_parent = p_y;
|
| 57 |
|
|
else if (p_x == p_x->m_p_parent->m_p_left)
|
| 58 |
|
|
p_x->m_p_parent->m_p_left = p_y;
|
| 59 |
|
|
else
|
| 60 |
|
|
p_x->m_p_parent->m_p_right = p_y;
|
| 61 |
|
|
|
| 62 |
|
|
p_y->m_p_left = p_x;
|
| 63 |
|
|
p_x->m_p_parent = p_y;
|
| 64 |
|
|
|
| 65 |
|
|
PB_DS_ASSERT_NODE_CONSISTENT(p_x)
|
| 66 |
|
|
PB_DS_ASSERT_NODE_CONSISTENT(p_y)
|
| 67 |
|
|
|
| 68 |
|
|
apply_update(p_x, (node_update* )this);
|
| 69 |
|
|
apply_update(p_x->m_p_parent, (node_update* )this);
|
| 70 |
|
|
}
|
| 71 |
|
|
|
| 72 |
|
|
PB_DS_CLASS_T_DEC
|
| 73 |
|
|
inline void
|
| 74 |
|
|
PB_DS_CLASS_C_DEC::
|
| 75 |
|
|
rotate_right(node_pointer p_x)
|
| 76 |
|
|
{
|
| 77 |
|
|
node_pointer p_y = p_x->m_p_left;
|
| 78 |
|
|
|
| 79 |
|
|
p_x->m_p_left = p_y->m_p_right;
|
| 80 |
|
|
|
| 81 |
|
|
if (p_y->m_p_right != 0)
|
| 82 |
|
|
p_y->m_p_right->m_p_parent = p_x;
|
| 83 |
|
|
|
| 84 |
|
|
p_y->m_p_parent = p_x->m_p_parent;
|
| 85 |
|
|
|
| 86 |
|
|
if (p_x == m_p_head->m_p_parent)
|
| 87 |
|
|
m_p_head->m_p_parent = p_y;
|
| 88 |
|
|
else if (p_x == p_x->m_p_parent->m_p_right)
|
| 89 |
|
|
p_x->m_p_parent->m_p_right = p_y;
|
| 90 |
|
|
else
|
| 91 |
|
|
p_x->m_p_parent->m_p_left = p_y;
|
| 92 |
|
|
|
| 93 |
|
|
p_y->m_p_right = p_x;
|
| 94 |
|
|
p_x->m_p_parent = p_y;
|
| 95 |
|
|
|
| 96 |
|
|
PB_DS_ASSERT_NODE_CONSISTENT(p_x)
|
| 97 |
|
|
PB_DS_ASSERT_NODE_CONSISTENT(p_y)
|
| 98 |
|
|
|
| 99 |
|
|
apply_update(p_x, (node_update* )this);
|
| 100 |
|
|
apply_update(p_x->m_p_parent, (node_update* )this);
|
| 101 |
|
|
}
|
| 102 |
|
|
|
| 103 |
|
|
PB_DS_CLASS_T_DEC
|
| 104 |
|
|
inline void
|
| 105 |
|
|
PB_DS_CLASS_C_DEC::
|
| 106 |
|
|
rotate_parent(node_pointer p_nd)
|
| 107 |
|
|
{
|
| 108 |
|
|
node_pointer p_parent = p_nd->m_p_parent;
|
| 109 |
|
|
|
| 110 |
|
|
if (p_nd == p_parent->m_p_left)
|
| 111 |
|
|
rotate_right(p_parent);
|
| 112 |
|
|
else
|
| 113 |
|
|
rotate_left(p_parent);
|
| 114 |
|
|
|
| 115 |
|
|
_GLIBCXX_DEBUG_ASSERT(p_parent->m_p_parent = p_nd);
|
| 116 |
|
|
_GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == p_parent ||
|
| 117 |
|
|
p_nd->m_p_right == p_parent);
|
| 118 |
|
|
}
|
| 119 |
|
|
|
| 120 |
|
|
PB_DS_CLASS_T_DEC
|
| 121 |
|
|
inline void
|
| 122 |
|
|
PB_DS_CLASS_C_DEC::
|
| 123 |
|
|
apply_update(node_pointer /*p_nd*/, null_node_update_pointer /*p_update*/)
|
| 124 |
|
|
{ }
|
| 125 |
|
|
|
| 126 |
|
|
PB_DS_CLASS_T_DEC
|
| 127 |
|
|
template<typename Node_Update_>
|
| 128 |
|
|
inline void
|
| 129 |
|
|
PB_DS_CLASS_C_DEC::
|
| 130 |
|
|
apply_update(node_pointer p_nd, Node_Update_* /*p_update*/)
|
| 131 |
|
|
{
|
| 132 |
|
|
node_update::operator()(node_iterator(p_nd),
|
| 133 |
|
|
node_const_iterator(static_cast<node_pointer>(0)));
|
| 134 |
|
|
}
|
| 135 |
|
|
|
| 136 |
|
|
PB_DS_CLASS_T_DEC
|
| 137 |
|
|
template<typename Node_Update_>
|
| 138 |
|
|
inline void
|
| 139 |
|
|
PB_DS_CLASS_C_DEC::
|
| 140 |
|
|
update_to_top(node_pointer p_nd, Node_Update_* p_update)
|
| 141 |
|
|
{
|
| 142 |
|
|
while (p_nd != m_p_head)
|
| 143 |
|
|
{
|
| 144 |
|
|
apply_update(p_nd, p_update);
|
| 145 |
|
|
|
| 146 |
|
|
p_nd = p_nd->m_p_parent;
|
| 147 |
|
|
}
|
| 148 |
|
|
}
|
| 149 |
|
|
|
| 150 |
|
|
PB_DS_CLASS_T_DEC
|
| 151 |
|
|
inline void
|
| 152 |
|
|
PB_DS_CLASS_C_DEC::
|
| 153 |
|
|
update_to_top(node_pointer /*p_nd*/, null_node_update_pointer /*p_update*/)
|
| 154 |
|
|
{ }
|
| 155 |
|
|
|
