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From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: Ada OO Mechanism
Date: 1999/06/03
Message-ID: <m33e09mha6.fsf@mheaney.ni.net>#1/1
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References: <7i05aq$rgl$1@news.orbitworld.net> <7i17gj$1u1k@news2.newsguy.com>
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NNTP-Posting-Date: Thu, 03 Jun 1999 08:26:29 PDT
Newsgroups: comp.lang.ada
Date: 1999-06-03T00:00:00+00:00
List-Id: <comp.lang.ada>

Ehud Lamm <mslamm@mscc.huji.ac.il> writes:

> However using 'tag or other methods of RTTI (as are avaible in C++) is
> usually concidred un-OOP, and not totally without reason. The argument
> is that if you do manual checks for tags, you must change the code
> base when you inherit, as opposed to simply coding new and sperate
> routines for the overridden and new features of the new type.

Not necessarily.  It may be the case the you're using 'Tag simply to
make sure the tags are the same.