Overloading a virtual function in a child class

Question

I am just testing with virtual keyword and inheritance concepts in c++. I have written a small program:

#include
#include

us         


        

Answer 1

Ideally your print that takes an int should have a different name but given you want both functions to be called print, you should make them both non-virtual and make them call protected virtual functions.

class cna_MO 
{   
    public:     
     void print() { doPrint(); }

    protected:
     virtual void doPrint()
      {         cout << "cna_MO" << endl;     
      } 
};  


class cna_bsc:public cna_MO 
{   
    protected:     
       virtual void doPrint()  
                  // although with implementation no need to override it
       {         
            cna_MO::print();     
       } 

    public:
     void print(int a)    
      {
          doPrintInt( a );
      }

    protected:
      virtual void doPrintInt( int )
      {
        cout << "cna_BSC" << endl;     
      } 
 };