150476Speter// -*- C++ -*-
220034Sache
320034Sache// Copyright (C) 2005, 2006 Free Software Foundation, Inc.
420034Sache//
520034Sache// This file is part of the GNU ISO C++ Library.  This library is free
620215Sache// software; you can redistribute it and/or modify it under the terms
7174990Sache// of the GNU General Public License as published by the Free Software
820034Sache// Foundation; either version 2, or (at your option) any later
920034Sache// version.
1020034Sache
1120034Sache// This library is distributed in the hope that it will be useful, but
1220034Sache// WITHOUT ANY WARRANTY; without even the implied warranty of
1320034Sache// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1420034Sache// General Public License for more details.
1520034Sache
1620034Sache// You should have received a copy of the GNU General Public License
1720034Sache// along with this library; see the file COPYING.  If not, write to
1820034Sache// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
1920034Sache// MA 02111-1307, USA.
2020034Sache
2120034Sache// As a special exception, you may use this file as part of a free
22174990Sache// software library without restriction.  Specifically, if other files
2320034Sache// instantiate templates or use macros or inline functions from this
2420034Sache// file, or you compile this file and link it with other files to
2520034Sache// produce an executable, this file does not by itself cause the
2620034Sache// resulting executable to be covered by the GNU General Public
2720034Sache// License.  This exception does not however invalidate any other
2820034Sache// reasons why the executable file might be covered by the GNU General
2920034Sache// Public License.
3020034Sache
3120034Sache// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
3220034Sache
3320034Sache// Permission to use, copy, modify, sell, and distribute this software
3420034Sache// is hereby granted without fee, provided that the above copyright
3520034Sache// notice appears in all copies, and that both that copyright notice
3620034Sache// and this permission notice appear in supporting documentation. None
37174990Sache// of the above authors, nor IBM Haifa Research Laboratories, make any
3874606Sache// representation about the suitability of this software for any
3920034Sache// purpose. It is provided "as is" without express or implied
4020034Sache// warranty.
4120034Sache
4220034Sache/**
4320034Sache * @file find_fn_imps.hpp
4420034Sache * Contains an implementation class for bin_search_tree_.
4520215Sache */
4620034Sache
47174990SachePB_DS_CLASS_T_DEC
4820034Sacheinline typename PB_DS_CLASS_C_DEC::const_point_iterator
4920034SachePB_DS_CLASS_C_DEC::
5020215Sachelower_bound(const_key_reference r_key) const
5120215Sache{
5220215Sache  node_pointer p_pot = m_p_head;
5320215Sache  node_pointer p_nd = m_p_head->m_p_parent;
5420215Sache
5520034Sache  while (p_nd != NULL)
5620034Sache    if (Cmp_Fn::operator()(
5720034Sache			   PB_DS_V2F(p_nd->m_value),
5820034Sache			   r_key))
5920034Sache      p_nd = p_nd->m_p_right;
6020034Sache    else
6120034Sache      {
6220034Sache	p_pot = p_nd;
6374570Sache
6420034Sache	p_nd = p_nd->m_p_left;
6520034Sache      }
6620034Sache
6754090Sache  return (iterator(p_pot));
6820034Sache}
6920034Sache
7020034SachePB_DS_CLASS_T_DEC
7174606Sacheinline typename PB_DS_CLASS_C_DEC::point_iterator
7220034SachePB_DS_CLASS_C_DEC::
7320034Sachelower_bound(const_key_reference r_key)
7420034Sache{
7573361Sache  node_pointer p_pot = m_p_head;
7620034Sache  node_pointer p_nd = m_p_head->m_p_parent;
7720034Sache
7820034Sache  while (p_nd != NULL)
7954090Sache    if (Cmp_Fn::operator()(
8053943Sache			   PB_DS_V2F(p_nd->m_value),
81174990Sache			   r_key))
8253943Sache      p_nd = p_nd->m_p_right;
8353943Sache    else
8453943Sache      {
8553943Sache	p_pot = p_nd;
8653943Sache
8753943Sache	p_nd = p_nd->m_p_left;
8853943Sache      }
8953943Sache
9053943Sache  return (iterator(p_pot));
9153943Sache}
9253943Sache
9353943SachePB_DS_CLASS_T_DEC
9453943Sacheinline typename PB_DS_CLASS_C_DEC::const_point_iterator
9553943SachePB_DS_CLASS_C_DEC::
9674413Sacheupper_bound(const_key_reference r_key) const
9753943Sache{
9874413Sache  node_pointer p_pot = m_p_head;
9953961Sache  node_pointer p_nd = m_p_head->m_p_parent;
10073361Sache
10173361Sache  while (p_nd != NULL)
10273361Sache    if (Cmp_Fn::operator()(r_key,
10373361Sache			   PB_DS_V2F(p_nd->m_value)))
104      {
105	p_pot = p_nd,
106
107	  p_nd = p_nd->m_p_left;
108      }
109    else
110      p_nd = p_nd->m_p_right;
111
112  return (const_iterator(p_pot));
113}
114
115PB_DS_CLASS_T_DEC
116inline typename PB_DS_CLASS_C_DEC::point_iterator
117PB_DS_CLASS_C_DEC::
118upper_bound(const_key_reference r_key)
119{
120  node_pointer p_pot = m_p_head;
121  node_pointer p_nd = m_p_head->m_p_parent;
122
123  while (p_nd != NULL)
124    if (Cmp_Fn::operator()(r_key,
125			   PB_DS_V2F(p_nd->m_value)))
126      {
127	p_pot = p_nd,
128
129	  p_nd = p_nd->m_p_left;
130      }
131    else
132      p_nd = p_nd->m_p_right;
133
134  return (point_iterator(p_pot));
135}
136
137PB_DS_CLASS_T_DEC
138inline typename PB_DS_CLASS_C_DEC::point_iterator
139PB_DS_CLASS_C_DEC::
140find(const_key_reference r_key)
141{
142  _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
143
144    node_pointer p_pot = m_p_head;
145  node_pointer p_nd = m_p_head->m_p_parent;
146
147  while (p_nd != NULL)
148    if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key))
149      {
150	p_pot = p_nd;
151
152	p_nd = p_nd->m_p_left;
153      }
154    else
155      p_nd = p_nd->m_p_right;
156
157  return point_iterator((p_pot != m_p_head&&  Cmp_Fn::operator()(
158								 r_key,
159								 PB_DS_V2F(p_pot->m_value)))?
160			m_p_head : p_pot);
161}
162
163PB_DS_CLASS_T_DEC
164inline typename PB_DS_CLASS_C_DEC::const_point_iterator
165PB_DS_CLASS_C_DEC::
166find(const_key_reference r_key) const
167{
168  _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
169
170    node_pointer p_pot = m_p_head;
171  node_pointer p_nd = m_p_head->m_p_parent;
172
173  while (p_nd != NULL)
174    if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key))
175      {
176	p_pot = p_nd;
177
178	p_nd = p_nd->m_p_left;
179      }
180    else
181      p_nd = p_nd->m_p_right;
182
183  return const_point_iterator((p_pot != m_p_head&&  Cmp_Fn::operator()(
184								       r_key,
185								       PB_DS_V2F(p_pot->m_value)))?
186			      m_p_head : p_pot);
187}
188
189