source: lemon-0.x/test/refptr_test.cc @ 2376:0ed45a6c74b1

/* -*- C++ -*-
 *
 * This file is a part of LEMON, a generic C++ optimization library
 *
 * Copyright (C) 2003-2006
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
 *
 * Permission to use, modify and distribute this software is granted
 * provided that this copyright notice appears in all copies. For
 * precise terms see the accompanying LICENSE file.
 *
 * This software is provided "AS IS" with no warranty of any kind,
 * express or implied, and with no claim as to its suitability for any
 * purpose.
 *
 */

#include<lemon/refptr.h>
#include "test_tools.h"
#include <iostream>

class Test 
{
  int &_counter;
public:
  Test(int &co) : _counter(co)
  {
    std::cerr << "Init\n";
    _counter++;
  }
  ~Test()
  {
    std::cerr << "Destroy\n";
    _counter--;
  }
  int &counter() { return _counter; }
  
};

int main()
{
  int c=0;
  
  {
    RefPtr<Test> a = new Test(c);
    check(a->counter() == 1, "Wrong number of initialization");
    {
      RefPtr<Test> b = a;
      check((*b).counter() == 1, "Wrong number of initialization");
      b=a;
      a=b;
      check((*a).counter() == 1, "Wrong number of initialization");
    }
    check(a->counter() == 1, "Wrong number of initialization");
  }
  check(c == 0, "Wrong number of initialization");

  return 0;
}