Products

Data Converter Cleaner TUC - Unit Converter Import Export Survey Manager Tweet Controller

Developer

Article Blog Forum Interview Beginner News Startup Quiz

Users

Career

Apply Job Internship

Pricing

Login Sign Up Get a Quote

How to make a virtual function in C Plus Plus?

Hank Greenberg 1977 13 Jun 2013

Hi Expert,

How to make a virtual function in c++?

Please provide line of code.

Thanks in advance.

Hank Greenberg

Other

1 Answers

AVADHESH PATEL 14 Jun 2013

try this:

Example of Virtual function:

class base{
public:
 int i;
base(int x){ i=x; }
virtual void func()
{
cout<<"Using bse version of func(): ";
cout<< i<<'\n';
}
};
class derived1:public base{
public:
void func()
{
cout<<"Using derived1's version of func(): ";
cout<<i*i<<'\n';
}
};
class derived2:public base{
public:
derived2(int x):base(x){}
void func()
{
cout<<"Using derived2's version of func(): ";
cout<<i+i<<'\n';
}
};

int main()
{
base *p;
base ob(10);
derived1 d_ob1(10);
derived2 d_ob2(10);
p=&ob;
p->func();
p=&d_ob1;
p->func();
p=&d_ob2;
p->func();
return 0;
}

advertising