RE: C# Override limitation..why?

how exactly is it a safe thing to do? consider

A a = new B();

what would the signature of a.whatever() be?

"Cliff_Harker@xxxxxxxxxxx" wrote:

> Why can't I do this in C#
>
> public class A
> {
> public A virtual whatever( A a )
> {
> }
> }
>
> public class B : A
> {
> public B override whatever( B b )
> {
> }
> }
>
> Why does the signature of the override have to match exactly the base
> version?
>
> It seems like a perfectly safe thing to do so why can't I do it? In
> some situations it saves lots of casting with duplicate methods.
>
> Cliff
>
>
.

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