--- /dev/null
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009, 2010, 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software
+// Foundation; either version 3, or (at your option) any later
+// version.
+
+// This library is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
+
+// Permission to use, copy, modify, sell, and distribute this software
+// is hereby granted without fee, provided that the above copyright
+// notice appears in all copies, and that both that copyright notice
+// and this permission notice appear in supporting documentation. None
+// of the above authors, nor IBM Haifa Research Laboratories, make any
+// representation about the suitability of this software for any
+// purpose. It is provided "as is" without express or implied
+// warranty.
+
+/**
+ * @file pat_trie_/find_fn_imps.hpp
+ * Contains an implementation class for pat_trie.
+ */
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_iterator
+PB_DS_CLASS_C_DEC::
+find(key_const_reference r_key)
+{
+ PB_DS_ASSERT_VALID((*this))
+ node_pointer p_nd = find_imp(r_key);
+
+ if (p_nd == 0 || p_nd->m_type != leaf_node)
+ {
+ PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
+ return end();
+ }
+
+ if (synth_access_traits::equal_keys(PB_DS_V2F(static_cast<leaf_pointer>(p_nd)->value()), r_key))
+ {
+ PB_DS_CHECK_KEY_EXISTS(r_key)
+ return iterator(p_nd);
+ }
+
+ PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
+ return end();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_const_iterator
+PB_DS_CLASS_C_DEC::
+find(key_const_reference r_key) const
+{
+ PB_DS_ASSERT_VALID((*this))
+
+ node_const_pointer p_nd = const_cast<PB_DS_CLASS_C_DEC* >(this)->find_imp(r_key);
+
+ if (p_nd == 0 || p_nd->m_type != leaf_node)
+ {
+ PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
+ return end();
+ }
+
+ if (synth_access_traits::equal_keys(PB_DS_V2F(static_cast<leaf_const_pointer>(p_nd)->value()), r_key))
+ {
+ PB_DS_CHECK_KEY_EXISTS(r_key)
+ return const_iterator(const_cast<node_pointer>(p_nd));
+ }
+
+ PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
+ return end();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::node_pointer
+PB_DS_CLASS_C_DEC::
+find_imp(key_const_reference r_key)
+{
+ if (empty())
+ return 0;
+
+ typename synth_access_traits::const_iterator b_it =
+ synth_access_traits::begin(r_key);
+ typename synth_access_traits::const_iterator e_it =
+ synth_access_traits::end(r_key);
+
+ node_pointer p_nd = m_p_head->m_p_parent;
+ _GLIBCXX_DEBUG_ASSERT(p_nd != 0);
+
+ while (p_nd->m_type != leaf_node)
+ {
+ _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == i_node);
+ node_pointer p_next_nd = static_cast<inode_pointer>(p_nd)->get_child_node(b_it, e_it, this);
+
+ if (p_next_nd == 0)
+ return p_nd;
+ p_nd = p_next_nd;
+ }
+ return p_nd;
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::node_pointer
+PB_DS_CLASS_C_DEC::
+lower_bound_imp(key_const_reference r_key)
+{
+ if (empty())
+ return (m_p_head);
+
+ node_pointer p_nd = m_p_head->m_p_parent;
+ _GLIBCXX_DEBUG_ASSERT(p_nd != 0);
+
+ typename PB_DS_CLASS_C_DEC::a_const_iterator b_it =
+ synth_access_traits::begin(r_key);
+
+ typename PB_DS_CLASS_C_DEC::a_const_iterator e_it =
+ synth_access_traits::end(r_key);
+
+ size_type checked_ind = 0;
+ while (true)
+ {
+ if (p_nd->m_type == leaf_node)
+ {
+ if (!synth_access_traits::cmp_keys(PB_DS_V2F(static_cast<leaf_const_pointer>(p_nd)->value()), r_key))
+ return p_nd;
+ iterator it(p_nd);
+ ++it;
+ return it.m_p_nd;
+ }
+
+ _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == i_node);
+ const size_type new_checked_ind =
+ static_cast<inode_pointer>(p_nd)->get_e_ind();
+
+ p_nd =
+ static_cast<inode_pointer>(p_nd)->get_lower_bound_child_node( b_it, e_it, checked_ind, this);
+ checked_ind = new_checked_ind;
+ }
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_iterator
+PB_DS_CLASS_C_DEC::
+lower_bound(key_const_reference r_key)
+{ return point_iterator(lower_bound_imp(r_key)); }
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_const_iterator
+PB_DS_CLASS_C_DEC::
+lower_bound(key_const_reference r_key) const
+{
+ return point_const_iterator(const_cast<PB_DS_CLASS_C_DEC* >(this)->lower_bound_imp(r_key));
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_iterator
+PB_DS_CLASS_C_DEC::
+upper_bound(key_const_reference r_key)
+{
+ point_iterator l_bound_it = lower_bound(r_key);
+
+ _GLIBCXX_DEBUG_ASSERT(l_bound_it == end() ||
+ !synth_access_traits::cmp_keys(PB_DS_V2F(*l_bound_it),
+ r_key));
+
+ if (l_bound_it == end() ||
+ synth_access_traits::cmp_keys(r_key, PB_DS_V2F(*l_bound_it)))
+ return l_bound_it;
+
+ return ++l_bound_it;
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_const_iterator
+PB_DS_CLASS_C_DEC::
+upper_bound(key_const_reference r_key) const
+{
+ point_const_iterator l_bound_it = lower_bound(r_key);
+
+ _GLIBCXX_DEBUG_ASSERT(l_bound_it == end() ||
+ !synth_access_traits::cmp_keys(PB_DS_V2F(*l_bound_it),
+ r_key));
+
+ if (l_bound_it == end() ||
+ synth_access_traits::cmp_keys(r_key, PB_DS_V2F(*l_bound_it)))
+ return l_bound_it;
+ return ++l_bound_it;
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::a_const_iterator
+PB_DS_CLASS_C_DEC::
+pref_begin(node_const_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return (synth_access_traits::begin(PB_DS_V2F(static_cast<leaf_const_pointer>(p_nd)->value())));
+
+ _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == i_node);
+ return static_cast<inode_const_pointer>(p_nd)->pref_b_it();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::a_const_iterator
+PB_DS_CLASS_C_DEC::
+pref_end(node_const_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return (synth_access_traits::end(PB_DS_V2F(static_cast<leaf_const_pointer>(p_nd)->value())));
+
+ _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == i_node);
+ return static_cast<inode_const_pointer>(p_nd)->pref_e_it();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::leaf_const_pointer
+PB_DS_CLASS_C_DEC::
+leftmost_descendant(node_const_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return static_cast<leaf_const_pointer>(p_nd);
+ return static_cast<inode_const_pointer>(p_nd)->leftmost_descendant();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::leaf_pointer
+PB_DS_CLASS_C_DEC::
+leftmost_descendant(node_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return static_cast<leaf_pointer>(p_nd);
+ return static_cast<inode_pointer>(p_nd)->leftmost_descendant();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::leaf_const_pointer
+PB_DS_CLASS_C_DEC::
+rightmost_descendant(node_const_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return static_cast<leaf_const_pointer>(p_nd);
+ return static_cast<inode_const_pointer>(p_nd)->rightmost_descendant();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::leaf_pointer
+PB_DS_CLASS_C_DEC::
+rightmost_descendant(node_pointer p_nd)
+{
+ if (p_nd->m_type == leaf_node)
+ return static_cast<leaf_pointer>(p_nd);
+ return static_cast<inode_pointer>(p_nd)->rightmost_descendant();
+}
+
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