COIN-OR::LEMON - Graph Library

source: lemon-0.x/test/refptr_test.cc @ 2223:590c1b663a27

Last change on this file since 2223:590c1b663a27 was 1977:8ef02f0c4245, checked in by Alpar Juttner, 14 years ago

RefPtr?: a reference counted pointer class

File size: 1.3 KB
Line 
1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2003-2006
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19#include<lemon/refptr.h>
20#include "test_tools.h"
21#include <iostream>
22
23class Test
24{
25  int &_counter;
26public:
27  Test(int &co) : _counter(co)
28  {
29    std::cerr << "Init\n";
30    _counter++;
31  }
32  ~Test()
33  {
34    std::cerr << "Destroy\n";
35    _counter--;
36  }
37  int &counter() { return _counter; }
38 
39};
40
41int main()
42{
43  int c=0;
44 
45  {
46    RefPtr<Test> a = new Test(c);
47    check(a->counter() == 1, "Wrong number of initialization");
48    {
49      RefPtr<Test> b = a;
50      check((*b).counter() == 1, "Wrong number of initialization");
51      b=a;
52      a=b;
53      check((*a).counter() == 1, "Wrong number of initialization");
54    }
55    check(a->counter() == 1, "Wrong number of initialization");
56  }
57  check(c == 0, "Wrong number of initialization");
58
59  return 0;
60}
61
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