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diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
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+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
@@ -0,0 +1,125 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006 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 2, 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.
+
+// You should have received a copy of the GNU General Public License
+// along with this library; see the file COPYING. If not, write to
+// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+// MA 02111-1307, USA.
+
+// As a special exception, you may use this file as part of a free
+// software library without restriction. Specifically, if other files
+// instantiate templates or use macros or inline functions from this
+// file, or you compile this file and link it with other files to
+// produce an executable, this file does not by itself cause the
+// resulting executable to be covered by the GNU General Public
+// License. This exception does not however invalidate any other
+// reasons why the executable file might be covered by the GNU General
+// Public License.
+
+// 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 for rc_binomial_heap_.
+ */
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+pop()
+{
+ make_binomial_heap();
+
+ PB_DS_DBG_ASSERT(!base_type::empty());
+
+ base_type::pop();
+
+ base_type::find_max();
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+clear()
+{
+ base_type::clear();
+
+ m_rc.clear();
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+make_binomial_heap()
+{
+ node_pointer p_nd = base_type::m_p_root;
+
+ while (p_nd != NULL)
+ {
+ node_pointer p_next = p_nd->m_p_next_sibling;
+
+ if (p_next == NULL)
+ p_nd = p_next;
+ else if (p_nd->m_metadata == p_next->m_metadata)
+ p_nd = link_with_next_sibling(p_nd);
+ else if (p_nd->m_metadata < p_next->m_metadata)
+ p_nd = p_next;
+#ifdef PB_DS_RC_BINOMIAL_HEAP__DEBUG_
+ else
+ PB_DS_DBG_ASSERT(0);
+#endif // #ifdef PB_DS_RC_BINOMIAL_HEAP__DEBUG_
+ }
+
+ m_rc.clear();
+}
+
+PB_DS_CLASS_T_DEC
+template<typename Pred>
+typename PB_DS_CLASS_C_DEC::size_type
+PB_DS_CLASS_C_DEC::
+erase_if(Pred pred)
+{
+ make_binomial_heap();
+
+ const size_type ersd = base_type::erase_if(pred);
+
+ base_type::find_max();
+
+ PB_DS_DBG_ONLY(assert_valid();)
+
+ return ersd;
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+erase(point_iterator it)
+{
+ make_binomial_heap();
+
+ base_type::erase(it);
+
+ base_type::find_max();
+}
+