--- /dev/null
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009 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 erase_fn_imps.hpp
+ * Contains an implementation class for ov_tree_.
+ */
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+clear()
+{
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ if (m_size == 0)
+ {
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ return;
+ }
+ else
+ {
+ reallocate_metadata((node_update* )this, 0);
+ cond_dtor<size_type> cd(m_a_values, m_end_it, m_size);
+ }
+
+ _GLIBCXX_DEBUG_ONLY(debug_base::clear();)
+ m_a_values = NULL;
+ m_size = 0;
+ m_end_it = m_a_values;
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+}
+
+PB_DS_CLASS_T_DEC
+template<typename Pred>
+inline typename PB_DS_CLASS_C_DEC::size_type
+PB_DS_CLASS_C_DEC::
+erase_if(Pred pred)
+{
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+
+#ifdef PB_DS_REGRESSION
+ typename Allocator::group_throw_prob_adjustor adjust(m_size);
+#endif
+
+ size_type new_size = 0;
+ size_type num_val_ersd = 0;
+ iterator source_it = m_a_values;
+ for (source_it = begin(); source_it != m_end_it; ++source_it)
+ if (!pred(*source_it))
+ ++new_size;
+ else
+ ++num_val_ersd;
+
+ if (new_size == 0)
+ {
+ clear();
+ return num_val_ersd;
+ }
+
+ value_vector a_new_values = s_value_alloc.allocate(new_size);
+ iterator target_it = a_new_values;
+ cond_dtor<size_type> cd(a_new_values, target_it, new_size);
+ _GLIBCXX_DEBUG_ONLY(debug_base::clear());
+ for (source_it = begin(); source_it != m_end_it; ++source_it)
+ {
+ if (!pred(*source_it))
+ {
+ new (const_cast<void*>(static_cast<const void* >(target_it)))
+ value_type(*source_it);
+
+ _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(*source_it)));
+ ++target_it;
+ }
+ }
+
+ reallocate_metadata((node_update* )this, new_size);
+ cd.set_no_action();
+
+ {
+ cond_dtor<size_type> cd1(m_a_values, m_end_it, m_size);
+ }
+
+ m_a_values = a_new_values;
+ m_size = new_size;
+ m_end_it = target_it;
+ update(node_begin(), (node_update* )this);
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ return num_val_ersd;
+}
+
+PB_DS_CLASS_T_DEC
+template<typename It>
+It
+PB_DS_CLASS_C_DEC::
+erase_imp(It it)
+{
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ if (it == end())
+ return end();
+
+ _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::check_key_exists(PB_DS_V2F(*it));)
+
+#ifdef PB_DS_REGRESSION
+ typename Allocator::group_throw_prob_adjustor adjust(m_size);
+#endif
+
+ _GLIBCXX_DEBUG_ASSERT(m_size > 0);
+ value_vector a_values = s_value_alloc.allocate(m_size - 1);
+ iterator source_it = begin();
+ iterator source_end_it = end();
+ iterator target_it = a_values;
+ iterator ret_it = end();
+
+ cond_dtor<size_type> cd(a_values, target_it, m_size - 1);
+
+ _GLIBCXX_DEBUG_ONLY(size_type cnt = 0;)
+
+ while (source_it != source_end_it)
+ {
+ if (source_it != it)
+ {
+ _GLIBCXX_DEBUG_ONLY(++cnt;)
+ _GLIBCXX_DEBUG_ASSERT(cnt != m_size);
+ new (const_cast<void* >(static_cast<const void* >(target_it)))
+ value_type(*source_it);
+
+ ++target_it;
+ }
+ else
+ ret_it = target_it;
+ ++source_it;
+ }
+
+ _GLIBCXX_DEBUG_ASSERT(m_size > 0);
+ reallocate_metadata((node_update* )this, m_size - 1);
+ cd.set_no_action();
+ _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::erase_existing(PB_DS_V2F(*it));)
+ {
+ cond_dtor<size_type> cd1(m_a_values, m_end_it, m_size);
+ }
+
+ m_a_values = a_values;
+ --m_size;
+ m_end_it = m_a_values + m_size;
+ update(node_begin(), (node_update* )this);
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ return It(ret_it);
+}
+
+PB_DS_CLASS_T_DEC
+bool
+PB_DS_CLASS_C_DEC::
+erase(const_key_reference r_key)
+{
+ point_iterator it = find(r_key);
+ if (it == end())
+ return false;
+ erase(it);
+ return true;
+}
+
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