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

// Copyright (C) 2005, 2006, 2007, 2009 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/>.

// 20.6.6.2 Template class shared_ptr [util.smartptr.shared]

#include <memory>

#include <testsuite_hooks.h>

struct A

{

  A() { ++ctor_count; }

  virtual ~A() { ++dtor_count; }

  static long ctor_count;

  static long dtor_count;

};

long A::ctor_count = 0;

long A::dtor_count = 0;

struct reset_count_struct

{

  ~reset_count_struct()

  {

    A::ctor_count = 0;

    A::dtor_count = 0;

  }

};

// 20.6.6.2.3 shared_ptr assignment [util.smartptr.shared.assign]

// Assignment from shared_ptr<Y>

void

test01()

{

  reset_count_struct __attribute__((unused)) reset;

  bool test __attribute__((unused)) = true;

  std::shared_ptr<A> a;

  a = std::shared_ptr<A>(new A);

  VERIFY( a.get() != 0 );

  VERIFY( A::ctor_count == 1 );

  VERIFY( A::dtor_count == 0 );

  a = std::shared_ptr<A>();

  VERIFY( a.get() == 0 );

  VERIFY( A::ctor_count == 1 );

  VERIFY( A::dtor_count == 1 );

}

int

main()

{

  test01();

  return 0;

}