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// { dg-options "-std=gnu++0x" }

// 2011-01-13  Paolo Carlini  <paolo.carlini@oracle.com>

//

// Copyright (C) 2011 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/>.

// 25.2.12 [alg.is_permutation] Is permutation

// { dg-do compile }

#include <algorithm>

#include <testsuite_iterators.h>

using __gnu_test::forward_iterator_wrapper;

struct X { };

bool operator==(const X&, const X) { return true; }

struct Y { };

bool predicate(const Y&, const Y&) { return true; }

bool

test1(forward_iterator_wrapper<X>& x1,

      forward_iterator_wrapper<X>& x2)

{

  return std::is_permutation(x1, x1, x2);

}

bool

test2(forward_iterator_wrapper<Y>& y1,

      forward_iterator_wrapper<Y>& y2)

{

  return std::is_permutation(y1, y1, y2, predicate);

}