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From: Jean-Pierre Rosen <rosen@adalog.fr>
Newsgroups: comp.lang.ada
Subject: Re: Self pointer in limited record
Date: Wed, 05 Sep 2007 15:12:19 +0200
Organization: Adalog
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Date: 2007-09-05T15:12:19+02:00
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Dmitry A. Kazakov a �crit :
> Yes, and you have to fix the point of view before you start to talk about
> *an* abstraction. The abstraction can be "dog" or it can be "named thing,"
> but it cannot be Spike.
> 
It seems that you really equate "abstraction" with "class". I agree that 
  a class is a collection of objects, which is different from an 
instance (= a single object).

But an abstraction (as I -and apparently others- understand it) is a 
reduced view of a real world *object*. You can have classes of 
abstractions, but an abstraction is not a class.

-- 
---------------------------------------------------------
            J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr