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

// 2008-09-16  Chris Fairles  <chris.fairles@gmail.com>

// Copyright (C) 2008, 2009, 2010 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 <algorithm>

#include <functional>

#include <testsuite_hooks.h>

struct compare_counter

  : std::binary_function<int, int, bool>

{

  static int count;

  bool operator()(int a, int b) const

  {

    ++count;

    return a < b;

  }

};

int compare_counter::count = 0;

void test01()

{

  bool test __attribute__((unused)) = true;

  std::minmax({1, 2, 3, 4, 5, 6, 7, 8}, compare_counter());

  // If N is the number of arguments in the minmax function call, 

  // 25.3.7 specifies that at most 3N/2 comparisons are allowed.

  VERIFY(compare_counter::count <= (3 * 8 / 2));

}

int main()

{

  test01();

  return 0;

}