libstdc++-v3/testsuite/20_util/unique_ptr/assign/move.cc

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

// Copyright (C) 2008-2014 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/>.

// 20.6.11 Template class unique_ptr [unique.ptr]

#include <memory>
#include <testsuite_hooks.h>

struct B { virtual ~B() {} };
struct D : public B {};

void
test01()
{
  bool test __attribute__((unused)) = true;

  D *d = new D;
  std::unique_ptr<D> p1(d);
  std::unique_ptr<D> p2(new D);
  p2 = std::move(p1);

  VERIFY( p1.get() == 0 );
  VERIFY( p2.get() == d );

  std::unique_ptr<B> p3(new B);
  p3 = std::move(p2);

  VERIFY( p2.get() == 0 );
  VERIFY( p3.get() == d );
}

int main()
{
  test01();
  return 0;
}