Abstract functions in child classes

Adam Adam at anizi.com
Fri Dec 2 11:10:57 PST 2011

> A second possible use case:
> class C(T): T{
>      // some declarations
> }

> Now you really want that template to be instantiable with T being
> an abstract or a concrete class. Anything else is bound to become
> extremely annoying.

Could you expand on this case a bit? I'm not sure I follow the point
one way or another.

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