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// { dg-options "-std=gnu++0x" }
 
// Copyright (C) 2007, 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/>.
 
 
// NOTE: This makes use of the fact that we know how moveable
// is implemented on set (via swap). If the implementation changed
// this test may begin to fail.
 
#include <unordered_set>
#include <utility>
#include <testsuite_hooks.h>
 
int main()
{
  bool test __attribute__((unused)) = true;
 
  std::unordered_set<int> a,b;
  a.insert(2);
  b.insert(1);
  b = std::move(a);
  VERIFY( b.find(2) != b.end() && a.find(1) == a.end() );
 
  std::unordered_set<int> c(std::move(b));
  VERIFY( c.find(2) != c.end() );
  VERIFY( b.find(2) == b.end() );
  return 0;
}