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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
new file mode 100644
index 0000000..84397f3
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
@@ -0,0 +1,121 @@
+// -*- 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 tree_policy/order_statistics_imp.hpp
+ * Contains forward declarations for order_statistics_key
+ */
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::iterator
+PB_DS_CLASS_C_DEC::
+find_by_order(size_type order)
+{
+  node_iterator it = node_begin();
+  node_iterator end_it = node_end();
+
+  while (it != end_it)
+    {
+      node_iterator l_it = it.get_l_child();
+      const size_type o = (l_it == end_it)? 0 : l_it.get_metadata();
+
+      if (order == o)
+	return *it;
+      else if (order < o)
+	it = l_it;
+      else
+        {
+	  order -= o + 1;
+	  it = it.get_r_child();
+        }
+    }
+
+  return base_type::end_iterator();
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::const_iterator
+PB_DS_CLASS_C_DEC::
+find_by_order(size_type order) const
+{ return const_cast<PB_DS_CLASS_C_DEC*>(this)->find_by_order(order); }
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::size_type
+PB_DS_CLASS_C_DEC::
+order_of_key(key_const_reference r_key) const
+{
+  node_const_iterator it = node_begin();
+  node_const_iterator end_it = node_end();
+
+  const cmp_fn& r_cmp_fn = const_cast<PB_DS_CLASS_C_DEC*>(this)->get_cmp_fn();
+  size_type ord = 0;
+  while (it != end_it)
+    {
+      node_const_iterator l_it = it.get_l_child();
+
+      if (r_cmp_fn(r_key, this->extract_key(*(*it))))
+	it = l_it;
+      else if (r_cmp_fn(this->extract_key(*(*it)), r_key))
+        {
+	  ord += (l_it == end_it)? 1 : 1 + l_it.get_metadata();
+	  it = it.get_r_child();
+        }
+      else
+        {
+	  ord += (l_it == end_it)? 0 : l_it.get_metadata();
+	  it = end_it;
+        }
+    }
+  return ord;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+operator()(node_iterator node_it, node_const_iterator end_nd_it) const
+{
+  node_iterator l_it = node_it.get_l_child();
+  const size_type l_rank = (l_it == end_nd_it) ? 0 : l_it.get_metadata();
+
+  node_iterator r_it = node_it.get_r_child();
+  const size_type r_rank = (r_it == end_nd_it) ? 0 : r_it.get_metadata();
+
+  const_cast<metadata_reference>(node_it.get_metadata())= 1 + l_rank + r_rank;
+}
+
+PB_DS_CLASS_T_DEC
+PB_DS_CLASS_C_DEC::
+~tree_order_statistics_node_update()
+{ }