#include
class base
{
public :
virtual void fun( )
{
cout << "base class's fun..." <<>
}
base( )
{
fun( ) ;
}
} ;
class derived : public base
{
public :
derived( )
{
fun( ) ;
}
void fun( )
{
cout << "derived class's fun..." <<>
}
} ;
void main( )
{
derived d ;
}
Ans: First, the fun( ) of base class and then fun( ) of derived class would get called. While constructing the object d of derived class, first the base class constructor would get called. At this moment, the VTABLE would hold the address of base class version of virtual function fun( ). As a result fun( ) of base gets called. The moment control reaches derived class’s constructor the VTABLE would now hold the address of its version of virtual function fun( ) as a result fun( ) of derived class gets called.
