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diff --git a/libstdc++-v3/testsuite/util/native_type/native_priority_queue.hpp b/libstdc++-v3/testsuite/util/native_type/native_priority_queue.hpp
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+// -*- 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.
+
+// You should have received a copy of the GNU General Public License
+// along with this library; see the file COPYING3.  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 native_priority_queue.hpp
+ * Contains an adapter to Dinkumware/SGI tree tables
+ */
+
+#ifndef PB_DS_NATIVE_PRIORITY_QUEUE_HPP
+#define PB_DS_NATIVE_PRIORITY_QUEUE_HPP
+
+#include <string>
+#include <vector>
+#include <queue>
+#include <deque>
+#include <ext/pb_ds/detail/standard_policies.hpp>
+#include <ext/pb_ds/detail/type_utils.hpp>
+#include <io/xml.hpp>
+
+namespace __gnu_pbds
+{
+  namespace test
+  {
+    namespace detail
+    {
+      template<typename Value_Type, bool Vector, typename Allocator>
+      struct base_seq
+      {
+      private:
+	typedef typename Allocator::template rebind<Value_Type> value_rebind;
+
+      public:
+	typedef std::vector<Value_Type, typename value_rebind::other> type;
+      };
+
+      template<typename Value_Type, typename Allocator>
+      struct base_seq<Value_Type, false, Allocator>
+      {
+      private:
+	typedef typename Allocator::template rebind<Value_Type> value_rebind;
+
+      public:
+	typedef std::deque<Value_Type, typename value_rebind::other> type;
+      };
+    } // namespace detail
+
+    struct native_pq_tag
+    { };
+
+#define PB_DS_CLASS_C_DEC \
+    native_priority_queue<Value_Type, Vector, Cmp_Fn, Allocator>
+
+#define PB_DS_BASE_C_DEC \
+    std::priority_queue<Value_Type, typename detail::base_seq<Value_Type, Vector, Allocator>::type, Cmp_Fn>
+
+    template<typename Value_Type,
+	     bool Vector,
+	     typename Cmp_Fn = std::less<Value_Type>,
+	     typename Allocator = std::allocator<char> >
+    class native_priority_queue : public PB_DS_BASE_C_DEC
+    {
+    private:
+      typedef PB_DS_BASE_C_DEC base_type;
+      typedef typename Allocator::template rebind<Value_Type> value_rebind;
+
+    public:
+      typedef Value_Type value_type;
+      typedef typename value_rebind::other::const_reference const_reference;
+      typedef native_pq_tag container_category;
+      typedef Cmp_Fn cmp_fn;
+
+      native_priority_queue() : base_type()
+      { }
+
+      template<typename It>
+      native_priority_queue(It f, It l) : base_type(f, l)
+      { }
+
+      static std::string
+      name()
+      {
+        if (Vector)
+	  return ("n_pq_vector");
+        return ("n_pq_deque");
+      }
+
+      static std::string
+      desc()
+      {
+        if (Vector)
+	  return make_xml_tag("type", "value", "std::priority_queue_vector");
+        return make_xml_tag("type", "value", "std::priority_queue_deque");
+      }
+
+      void
+      clear()
+      { *static_cast<base_type*>(this) = base_type(); }
+
+      void
+      erase(const_reference r_val)
+      {
+        base_type tmp;
+        Cmp_Fn cmp;
+
+        while (cmp(base_type::top(), r_val) || cmp(r_val, base_type::top()))
+	  {
+            tmp.push(base_type::top());
+            base_type::pop();
+	  }
+
+        if (!base_type::empty())
+	  {
+            base_type::pop();
+            while (!base_type::empty())
+	      {
+                tmp.push(base_type::top());
+                base_type::pop();
+	      }
+	  }
+	*static_cast<base_type* >(this) = tmp;
+      }
+
+      template<typename Pred>
+      size_t
+      erase_if(Pred pred)
+      {
+        base_type tmp;
+        std::size_t ersd = 0;
+        while (!base_type::empty())
+	  {
+            if (!pred(base_type::top()))
+	      tmp.push(base_type::top());
+            else
+	      ++ersd;
+            base_type::pop();
+	  }
+
+	*static_cast<base_type*>(this) = tmp;
+        return ersd;
+      }
+
+      template<typename Pred>
+      void
+      split(Pred pred, PB_DS_CLASS_C_DEC& other)
+      {
+        base_type tmp;
+        other.clear();
+        while (!base_type::empty())
+	  {
+            if (!pred(base_type::top()))
+	      tmp.push(base_type::top());
+            else
+	      other.push(base_type::top());
+            base_type::pop();
+	  }
+	*static_cast<base_type*>(this) = tmp;
+      }
+
+      void
+      modify(const_reference r_old, const_reference r_new)
+      {
+        erase(r_old);
+        push(r_new);
+      }
+
+      void
+      join(PB_DS_CLASS_C_DEC& other)
+      {
+        std::vector<value_type> a_tmp;
+        while (!base_type::empty())
+	  {
+            a_tmp.push_back(base_type::top());
+            base_type::pop();
+	  }
+
+        while (!other.empty())
+	  {
+            a_tmp.push_back(other.top());
+            other.pop();
+	  }
+
+	*static_cast<base_type*>(this) = base_type(a_tmp.begin(), a_tmp.end());
+      }
+
+      Cmp_Fn
+      get_cmp_fn() const
+      { return Cmp_Fn(); }
+    };
+
+#undef PB_DS_BASE_C_DEC
+#undef PB_DS_CLASS_C_DEC
+
+  } // namespace test
+} // namespace __gnu_pbds
+
+#endif