constructors.cpp
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1 
8 /*****************************************************************************
9 ** Includes
10 *****************************************************************************/
11 
12 #include <iostream>
13 
18 /*****************************************************************************
19 ** Classes
20 *****************************************************************************/
21 
22 class A {
23  public:
24  A(int i) : var(i) { std::cout << "Constructor" << std::endl; }
25  A(const A& a) { std::cout << "Copy constructor" << std::endl; }
26  ~A() { std::cout << "Destructor" << std::endl; }
27  void f() {};
28  private:
29  int var;
30 };
31 
32 /*****************************************************************************
33 ** Functions
34 *****************************************************************************/
35 
36 A f() {
37  return A(3);
38 }
39 
40 A g() {
41  A a(4);
42  return a;
43 }
44 
45 /*****************************************************************************
46 ** Main
47 *****************************************************************************/
48 
49 int main() {
50 
51  std::cout << std::endl;
52  std::cout << "***********************************************************" << std::endl;
53  std::cout << " Normal Constructor : A a(3)" << std::endl;
54  std::cout << "***********************************************************" << std::endl;
55  std::cout << std::endl;
56 
57  A a1(3); a1.f();
58 
59  std::cout << std::endl;
60  std::cout << "***********************************************************" << std::endl;
61  std::cout << " Copy Constructor : A a2(a)" << std::endl;
62  std::cout << "***********************************************************" << std::endl;
63  std::cout << std::endl;
64 
65  A a2(a1); a2.f();
66 
67  std::cout << std::endl;
68  std::cout << "***********************************************************" << std::endl;
69  std::cout << " Constructor Assignment w/ Function : A a3 = f();" << std::endl;
70  std::cout << "***********************************************************" << std::endl;
71  std::cout << std::endl;
72 
73  A a3 = f(); a3.f();
74 
75  std::cout << std::endl;
76  std::cout << "***********************************************************" << std::endl;
77  std::cout << " Constructor Assignment w/ Non Temp Function : A a4 = g();" << std::endl;
78  std::cout << "***********************************************************" << std::endl;
79  std::cout << std::endl;
80 
81  A a4 = g(); a4.f();
82 
83  std::cout << std::endl;
84  std::cout << "***********************************************************" << std::endl;
85  std::cout << " Program Finished" << std::endl;
86  std::cout << "***********************************************************" << std::endl;
87  std::cout << std::endl;
88 
89 
90  return 0;
91 }
int main(int argc, char **argv)


ecl_utilities
Author(s): Daniel Stonier
autogenerated on Thu Jun 6 2019 21:58:43