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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
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Subject: Re: Ada-Singleton-Why does it work like this?
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Martin wrote:
> 
> But you can not derive a class from this:

Since I am not a fan of programming by extension, I consider this a good thing.

> Now you could argue that there should just be a "package
> Print_Manager" and no need for a Print_Manager type...

Precisely. If you need several of these, then the package should be generic. Can 
you call it a singleton when you have several instances?

-- 
Jeff Carter
"We use a large, vibrating egg."
Annie Hall
44