virtual function and late binding

Question

#include<iostream>
using namespace std;
class A
{
int a;
public:
virtual void fun1()
{
cout<<"class A fun1 works ";

}

};
class B: public A
{
int b;
public:
void fun1()
{
cout<<"class B fun1 works";
}
/*virtual*/ void fun2()
{
cout<<"class B fun2 works";
}

};
void fun();
void fun()
{
A *c=new B;

c->fun1();
c->fun2();// why this line is giving error does c doesnt store the address of object B even after makinf fun2 virtual plz explain

}
int main()
{
fun();
return 0;
}

Answer 1

You need to add virtual version of fun2 to A or non-virtual, but in case of calling from pointer to A, program will call fun2 for A class, not for B. In your program not able to find entry for fun2 in vtable for class A.