Re: Need advice: Enumerate or not

[Preben Randhol <randhol+abuse@pvv.org>]

On 16 May 2002 09:03:25 -0400, Stephen Leake wrote:

> No, the child package where the actual operation is defined does _not_
> need to be visible for dispatching to happen. That is crucial to the
> dispatching design; the top level Update procedure can be written with
> _no_ knowledge of what procedures are actually dispatched to.

But as I said these objects are in different packages which are not 
child packages of a package. Doe they need to be?

> This is done by making the root operation abstract; then the compiler
> ensures that each derived type supplies an update function.

Yes I have done this in my Common_Dialog package as there I have a
"root" package which has an abstract type that the child packages
derive. In my other case I don't have that.

-- 
Preben