Rtti-pen questions

TTI
// A pen exam
// Evaluate the knowledge of rtti and identify runtime types
// You also need to enable the rtti function of the VC compiler.
// Select C ++ language for project/settings/C ++/catogory and you will see that option.
# Include < Iostream >
# Include < Typeinfo >
Using   Namespace STD;
Class   Base
{
Public :
Virtual   Void Funca () {cout <   " Base "   < Endl ;}
};
Class Derived: Public   Base
{
Public :
Virtual   Void Funcb () {cout <   " Derived "   < Endl ;}
};
// Requires that func be able to output the actual type of the form parameter. either of the following func can

//Funcc uses the dynamic_cast type conversion to identify the type.

// Dynamic_cast must be performed in hierarchy with virtual functions.
Void Funcc ( Base   * P)
{
Derived * DP = Dynamic_cast < Derived *> (P );
If (DP ! = Null)
DP -> Funcb ();
Else
P -> Funca ();
}

// Funcd uses the typeid Operator

Void Funcd ( Base   * P)
{
Derived * DP = NULL;
If (Typeid ( * P) = Typeid (derived ))
{
DP = Static_cast < Derived *> (P );
DP -> Funcb ();
}
Else
P -> Funca ();

}
Int Main ()
{
Base   * CP =   New Derived;
Funcd (CP );
Funcc (CP );
Base   * DP =   New   Base ;
Funcc (DP );
Funcd (DP );
Return   0 ;
}