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From: Laurent Guerby <guerby@acm.org>
Subject: Re: Ada OO Mechanism
Date: 1999/05/28
Message-ID: <86lne9qh28.fsf@ppp-159-70.villette.club-internet.fr>#1/1
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Date: 1999-05-28T16:43:20+00:00
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Hyman Rosen <hymie@prolifics.com> writes:
> [...]
> From reading the Rationale, I thought that the assignment to z would
> result in a dispatching call to Get, using the tag of z that was set
> at its initialization. What am I doing wrong here? How do controlling
> return types work?

A variable, once given an initial value, never change its type in
Ada. So the assignment to a class wide variable can only be done in a
declarative part.

--LG