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  1.     #include<iostream>
  2.     using namespace std;
  3.  
  4.     class A
  5.     {
  6.     public:
  7.     	virtual void doSomething()
  8.         {
  9.             std::cout<<"\nIn A::doSomething()";
  10.         }
  11.     };
  12.  
  13.     class B : public A
  14.     {
  15.     public:
  16.     	virtual void doSomething()
  17.         {
  18.             std::cout<<"\nIn B::doSomething()";
  19.         }
  20.     };
  21.  
  22.  
  23.  
  24.     int main()
  25.     {
  26.     	B b;
  27.         A obj;
  28.     	A* a = &b;
  29.       	a->doSomething();
  30.  
  31.         a = &obj;
  32.         a->doSomething();
  33.  
  34.     	return 0;
  35.     }
  36.  
  37.  
Success #stdin #stdout 0s 2852KB
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stdin
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Standard input is empty
stdout
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In B::doSomething()
In A::doSomething()
https://ideone.com/XsBv73
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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