1C:\DocumentsandSettings\usman.younis\my...2010\Projects\polymorph\polymorph\polymorph.cpp
1#include<iostream>
2usingnamespacestd;
3
4classBase
5{
6public:
7 Base()
8 {cout<<"Baseiscreated\n";}
9 ~Base()
10 {cout<<"Baseisdestructed\n";}
11
12 intbase
_
function(inta)
13 {
14 cout<<"Inbase\n";
15 returna;
16 }
17
18 virtualintincrement(inta){return++a;}
19 virtualintdecrement(inta){return‐‐a;}
20 };
21
22 classDerived1:publicBase
23 {
24 public:
25 Derived1()
26 {cout<<"Derived1isnowcreated\n";}
27
28 intincrement(inta)
29 {
30 cout<<"InDerived1\n";
31 return++a;
32 }
33
34 intsquare(inta)
35 {
36 cout<<"InDerived1\n";
37 returna*a;
38 }
39 ~Derived1()
40 {cout<<"Derived1isnowdestructed\n";}
41
42 };
43
44 classDerived2:publicDerived1
45 {
46 public:
47 Derived2()
48 {cout<<"Derived2isnowcreated\n";}
49
50 virtualintincrement(inta)
51 {
52 cout<<"InDerived2\n";
53 return++a;
54 }
55
56 intdecrement(inta)
57 {
58 cout<<"InDerived2\n";
59 return‐‐a;
60 }
61
62 intderv2
_
function(inta)
63 {
64 cout<<"InDerived2\n";
65 returna;
66 }
docsity.com
