subclassing the Set object type

[address@hidden (Bohdan Durnota)]

A "simple" question:

        How can one (easily) subclass the Set object class?

Ideally, I would have thought that

        #import <collections.h>

        @interface MySet : Set {
        ... }
        ...
        @end

would have been sufficient, but this does not work.

Thanks, Bohdan Durnota

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Bohdan Durnota, Lecturer                PO Box 197
Department of Software Development      Caulfield East 3145
Monash University                       Australia
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