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diff --git a/libstdc++-v3/testsuite/util/common_type/priority_queue/string_form.hpp b/libstdc++-v3/testsuite/util/common_type/priority_queue/string_form.hpp
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+// -*- 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 string_form.hpp
+ * Transforms containers into string form.
+ */
+
+#ifndef PB_DS_STRING_FORM_HPP
+#define PB_DS_STRING_FORM_HPP
+
+#include <string>
+#include <sstream>
+#include <ext/pb_ds/detail/type_utils.hpp>
+#include <native_type/priority_queue/native_priority_queue.hpp>
+#include <common_type/priority_queue/detail/ds_string_form.hpp>
+#include <io/xml.hpp>
+
+namespace pb_ds
+{
+  namespace test
+  {
+    namespace detail
+    {
+      template<typename Cntnr>
+      struct pb_ds_string_form
+      {
+      private:
+	typedef ds_string_form<Cntnr, typename Cntnr::container_category> ds_string_form_t;
+
+      public:
+	static std::string
+        name()
+	{ return ds_string_form_t::name(); }
+
+	static std::string
+        desc()
+	{ return ds_string_form_t::desc(); }
+      };
+
+      template<typename Cntnr>
+      struct native_string_form
+      {
+	static std::string
+        name()
+	{ return Cntnr::name(); }
+
+	static std::string
+        desc()
+	{ return Cntnr::desc(); }
+      };
+
+      template<typename Cntnr, class Tag>
+      struct tag_select_string_form : public pb_ds_string_form<Cntnr>
+      { };
+
+      template<typename Cntnr>
+      struct tag_select_string_form<Cntnr, native_pq_tag> 
+	: public native_string_form<Cntnr>
+      { };
+    } // namespace detail
+
+    template<typename Cntnr>
+    struct string_form 
+      : public detail::tag_select_string_form<Cntnr, typename Cntnr::container_category>
+    { };
+  } // namespace test
+} // namespace pb_ds
+
+#endif // #ifndef PB_DS_STRING_FORM_HPP
+