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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/rb_tree_map_/node.hpp b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/rb_tree_map_/node.hpp
new file mode 100644
index 0000000..b6f80b2
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/rb_tree_map_/node.hpp
@@ -0,0 +1,139 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009, 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 rb_tree_map_/node.hpp
+ * Contains an implementation for rb_tree_.
+ */
+
+#ifndef PB_DS_RB_TREE_NODE_HPP
+#define PB_DS_RB_TREE_NODE_HPP
+
+#include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp>
+
+namespace __gnu_pbds
+{
+  namespace detail
+  {
+    /// Node for Red-Black trees.
+    template<typename Value_Type, class Metadata, typename _Alloc>
+    struct rb_tree_node_
+    {
+    public:
+      typedef Value_Type 		value_type;
+      typedef Metadata 			metadata_type;
+
+      typedef
+      typename _Alloc::template rebind<
+      rb_tree_node_<
+      Value_Type,
+      Metadata,
+      _Alloc> >::other::pointer
+      node_pointer;
+
+      typedef
+      typename _Alloc::template rebind<
+	metadata_type>::other::reference
+      metadata_reference;
+
+      typedef
+      typename _Alloc::template rebind<
+	metadata_type>::other::const_reference
+      metadata_const_reference;
+
+      bool
+      special() const
+      { return m_red; }
+
+      metadata_const_reference
+      get_metadata() const
+      { return m_metadata; }
+
+      metadata_reference
+      get_metadata()
+      { return m_metadata; }
+
+#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
+      void
+      trace() const
+      {
+	std::cout << PB_DS_V2F(m_value) <<(m_red? " <r> " : " <b> ") 
+		  << "(" << m_metadata << ")";
+      }
+#endif
+
+      node_pointer 	m_p_left;
+      node_pointer 	m_p_right;
+      node_pointer 	m_p_parent;
+      value_type 	m_value;
+      bool 		m_red;
+      metadata_type 	m_metadata;
+    };
+
+    template<typename Value_Type, typename _Alloc>
+    struct rb_tree_node_<Value_Type, null_type, _Alloc>
+    {
+    public:
+      typedef Value_Type 		value_type;
+      typedef null_type 	metadata_type;
+
+      typedef
+      typename _Alloc::template rebind<
+      rb_tree_node_<
+      Value_Type,
+      null_type,
+      _Alloc> >::other::pointer
+      node_pointer;
+
+      bool
+      special() const
+      { return m_red; }
+
+#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
+      void
+      trace() const
+      { std::cout << PB_DS_V2F(m_value) <<(m_red? " <r> " : " <b> "); }
+#endif 
+
+      node_pointer 	m_p_left;
+      node_pointer 	m_p_right;
+      node_pointer 	m_p_parent;
+      value_type 	m_value;
+      bool 		m_red;
+    };
+  } // namespace detail
+} // namespace __gnu_pbds
+
+#endif