Virtual functions and polymorphism
- by ritmbo
Suppose I have this:
class A
{
public:
virtual int hello(A a);
};
class B : public A
{
public:
int hello(B b){ bla bla };
};
So, A it's an abstract class.
1)In the class B, I'm defining a method that its suppose overrides the A class. But the parameter it's slightly different. I'm not sure about this, is this correct? Maybe because of polymorphism, this is ok but its rather confusing.
2) If I do: A a = new B;, and then a.hello(lol); if "lol" it's not of type B, then it would give compile error?, and if it's of type A from another class C (class C : public A), what would happend?
I'm confused about the overriding and virtual thing.. all examples I found work with methods without parameters.
Any answer, link, or whatever it's appreciated.
thanks
pd: sorry for my english
