Question

How to define pure virtual function in class with C++

Answer 1

#include <iostream>  

class Base {  
    public:  
    virtual void print() = 0;  
};  
  
class Derived:public Base {  
    public:  
    void print() {  
        std::cout << "c++";  
    }  
};  

int main() {  
    Base *pb;  
    Derived d;  
    
    pb = &d;  
    pb->print();  
    
    return 0;  
}  



/*
run:

c++

*/

 

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