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

// { dg-do compile }

// Copyright (C) 2011 Free Software Foundation

//

// 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/>.

// 20.7.2.2 Class template shared_ptr [util.smartptr.shared]

#include <memory>

// DR 1401

void test01()

{

  std::shared_ptr<int> ptr1, ptr2;

  if (ptr1 == ptr2)

    { }

  if (ptr1 == nullptr)

    { }

  if (nullptr == ptr1)

    { }

  if (ptr1 != ptr2)

    { }

  if (ptr1 != nullptr)

    { }

  if (nullptr != ptr1)

    { }

  if (ptr1 < ptr2)

    { }

  if (ptr1 < nullptr)

    { }

  if (nullptr < ptr1)

    { }

  if (ptr1 <= ptr2)

    { }

  if (ptr1 <= nullptr)

    { }

  if (nullptr <= ptr1)

    { }

  if (ptr1 > ptr2)

    { }

  if (ptr1 > nullptr)

    { }

  if (nullptr > ptr1)

    { }

  if (ptr1 >= ptr2)

    { }

  if (ptr1 >= nullptr)

    { }

  if (nullptr >= ptr1)

    { }

}