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

// Copyright (C) 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>

#include <testsuite_allocator.h>

using __gnu_test::tracker_allocator_counter;

using __gnu_test::tracker_allocator;

struct A { };

void deletefunc(A* p) { delete p; }

struct D

{

  void operator()(A* p) { delete p; ++delete_count; }

  static long delete_count;

};

long D::delete_count = 0;

// 20.6.6.2.1 shared_ptr constructors [util.smartptr.shared.const]

// Construction with allocator

int

test01()

{

  bool test __attribute__((unused)) = true;

  tracker_allocator_counter::reset();

  std::shared_ptr<A> p1(new A, deletefunc, tracker_allocator<A>());

  std::size_t const sz = tracker_allocator_counter::get_allocation_count();

  VERIFY( sz > 0 );

  {

    std::shared_ptr<A> p2(p1);

    VERIFY( p2.use_count() == 2 );

    VERIFY( tracker_allocator_counter::get_allocation_count() == sz );

    VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );

  }

  VERIFY( p1.use_count() == 1 );

  VERIFY( tracker_allocator_counter::get_allocation_count() == sz );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );

  p1.reset();

  VERIFY( p1.use_count() == 0 );

  VERIFY( tracker_allocator_counter::get_allocation_count() == sz );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == sz );

  return 0;

}

// Construction with allocator

int

test02()

{

  bool test __attribute__((unused)) = true;

  tracker_allocator_counter::reset();

  std::shared_ptr<A> p1(new A, deletefunc, tracker_allocator<A>());

  std::size_t const sz1 = tracker_allocator_counter::get_allocation_count();

  VERIFY( sz1 > 0 );

  std::shared_ptr<A> p2(new A, D(), tracker_allocator<A>());

  std::size_t const sz2 = tracker_allocator_counter::get_allocation_count();

  VERIFY( sz2 > sz1 );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );

  p1 = p2;

  VERIFY( p2.use_count() == 2 );

  VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == sz1 );

  p1.reset();

  VERIFY( p2.use_count() == 1 );

  VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == sz1 );

  p2.reset();

  VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );

  VERIFY( tracker_allocator_counter::get_deallocation_count() == sz2 );

  VERIFY( D::delete_count == 1 );

  return 0;

}

int

main()

{

  test01();

  test02();

  return 0;

}