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// { dg-do compile }
 
// Copyright (C) 2008, 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/>.
 
 
#include <string>
#include <algorithm>
 
template<class T>
  class W
  {
  public:
    T data;
  };
 
template<class T>
  void
  swap(W<T>& x, W<T>& y)
  {
    using std::swap;
    swap(x.data, y.data);
  }
 
// DR 809. std::swap should be overloaded for array types.
void test01()
{
  W<std::string[8]> w1, w2;  // Two objects of a Swappable type.
 
  using std::swap;
  swap(w1, w2);
}