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diff --git a/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
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index 000000000..a000c744c
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+++ b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
@@ -0,0 +1,120 @@
+// -*- 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 bin_search_tree_.
+ */
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+actual_erase_node(node_pointer p_z)
+{
+ _GLIBCXX_DEBUG_ASSERT(m_size > 0);
+ --m_size;
+
+ _GLIBCXX_DEBUG_ONLY(erase_existing(PB_DS_V2F(p_z->m_value)));
+
+ p_z->~node();
+
+ s_node_allocator.deallocate(p_z, 1);
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+update_min_max_for_erased_node(node_pointer p_z)
+{
+ if (m_size == 1)
+ {
+ m_p_head->m_p_left = m_p_head->m_p_right = m_p_head;
+
+ return;
+ }
+
+ if (m_p_head->m_p_left == p_z)
+ {
+ iterator it(p_z);
+
+ ++it;
+
+ m_p_head->m_p_left = it.m_p_nd;
+ }
+ else if (m_p_head->m_p_right == p_z)
+ {
+ iterator it(p_z);
+
+ --it;
+
+ m_p_head->m_p_right = it.m_p_nd;
+ }
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+clear()
+{
+ _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
+
+ clear_imp(m_p_head->m_p_parent);
+
+ m_size = 0;
+
+ initialize();
+
+ _GLIBCXX_DEBUG_ONLY(debug_base::clear();)
+
+ _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
+ }
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+clear_imp(node_pointer p_nd)
+{
+ if (p_nd == NULL)
+ return;
+
+ clear_imp(p_nd->m_p_left);
+
+ clear_imp(p_nd->m_p_right);
+
+ p_nd->~node();
+
+ s_node_allocator.deallocate(p_nd, 1);
+}
+