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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/unordered_iterator/iterator.hpp b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/unordered_iterator/iterator.hpp
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+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/unordered_iterator/iterator.hpp
@@ -0,0 +1,130 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009, 2010 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 iterator.hpp
+ * Contains an iterator_ class used for ranging over the elements of the
+ *    table.
+ */
+
+/// Range-type iterator.
+class iterator_
+: public const_iterator_
+{
+public:
+  /// Category.
+  typedef std::forward_iterator_tag iterator_category;
+
+  /// Difference type.
+  typedef typename _Alloc::difference_type difference_type;
+
+  /// Iterator's value type.
+  typedef value_type_ value_type;
+
+  /// Iterator's pointer type.
+  typedef pointer_ pointer;
+
+  /// Iterator's const pointer type.
+  typedef const_pointer_ const_pointer;
+
+  /// Iterator's reference type.
+  typedef reference_ reference;
+
+  /// Iterator's const reference type.
+  typedef const_reference_ const_reference;
+
+  /// Default constructor.
+  inline
+  iterator_()
+  : const_iterator_(0, PB_DS_GEN_POS(), 0) { }
+
+  /// Conversion to a point-type iterator.
+  inline
+  operator point_iterator_()
+  { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); }
+
+  /// Conversion to a point-type iterator.
+  inline
+  operator const point_iterator_() const
+  { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); }
+
+  /// Access.
+  pointer
+  operator->() const
+  {
+    _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0);
+    return (const_cast<pointer>(base_type::m_p_value));
+  }
+
+  /// Access.
+  reference
+  operator*() const
+  {
+    _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0);
+    return (const_cast<reference>(*base_type::m_p_value));
+  }
+
+  /// Increments.
+  iterator_&
+  operator++()
+  {
+    base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos);
+    return *this;
+  }
+
+  /// Increments.
+  iterator_
+  operator++(int)
+  {
+    iterator_ ret =* this;
+    base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos);
+    return ret;
+  }
+
+protected:
+  typedef const_iterator_ base_type;
+
+  /**
+   *  Constructor used by the table to initiate the generalized
+   *      pointer and position (e.g., this is called from within a find()
+   *      of a table.
+   * */
+  inline
+  iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl)
+  : const_iterator_(p_value, pos, p_tbl)
+  { }
+
+  friend class PB_DS_CLASS_C_DEC;
+};