src/mem/gems_common/RefCnt_tester.cc

/*
 * Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Code used to test the RefCnt class
 */

#include "mem/gems_common/RefCnt.hh"
#include "mem/gems_common/RefCountable.hh"

class Foo : public RefCountable {
public:
  int m_data;
  Foo* clone() const;
private:
};

Foo* Foo::clone() const
{
  Foo* temp_ptr;
  temp_ptr = new Foo;
  *temp_ptr = *this;
  cout << "Cloned!" << endl;
  return temp_ptr;
}

void bar(RefCnt<Foo> f)
{
  cout << f.ref()->m_data << endl;
}

Foo f2;

int main()
{
  Foo f;
  f.m_data = 2;

  {
    RefCnt<Foo> a(f);

    f.m_data = 3;
    cout << a.ref()->m_data << endl;
    cout << f.m_data << endl;
    f2 = f;
  }

  bar(f2);

  return 0;
}