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// Copyright (C) 2005, 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/>.

// 25.3.1.3 [lib.partial.sort]

#include <algorithm>

#include <testsuite_hooks.h>

#include <testsuite_iterators.h>

using __gnu_test::test_container;

using __gnu_test::random_access_iterator_wrapper;

using std::partial_sort;

typedef test_container<int, random_access_iterator_wrapper> Container;

void

test1()

{

  int array[]={2,1,0};

  Container con1(array, array + 2);

  Container con2(array, array);

  partial_sort(con2.begin(), con2.begin(), con2.end());

  partial_sort(con1.begin(), con1.begin(), con1.end());

  partial_sort(con1.begin(), con1.end(), con1.end());

}

void

test2()

{

  int array[] = {6, 5, 4, 3, 2, 1, 0};

  Container con(array, array + 7);

  partial_sort(con.begin(), con.it(3), con.end());

  VERIFY(array[0] == 0 && array[1] == 1 && array[2] == 2);

}

void

test3()

{

  int array[] = {0, 6, 1, 5, 2, 4, 3};

  Container con(array,array + 7);

  partial_sort(con.begin(), con.it(3), con.end());

  VERIFY(array[0] == 0 && array[1] == 1 && array[2] == 2);

}

int

main()

{

  test1();

  test2();

  test3();

}