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Newsgroups: comp.lang.ada
From: Ted Dennison<dennison@telepath.com>
References: <9q1uah$6ir$1@trog.dera.gov.uk>
Subject: Re: Should the compiler accept this?
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Date: 2001-10-10T17:11:25+00:00
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In article <9q1uah$6ir$1@trog.dera.gov.uk>, Stephen Cole says...
>The compiler is not complaining about it, but according to the rules of Ada
>and not just what the compiler accepts, should I be defining a function
>Hello() for derived type MyNewRcd2?? Or can I always assume that the Hello()
>defined for type MyNewRcd will actually catch calls to Hello() made with an
>actual MyNewRcd2 type variable passed as a parameter to Add()?

The only time you *have* to define an overriding subprogram is when the parent's
version of the subprogram was abstract. Otherwise, you can just let it dispatch
to the parent's subprogram (which it will do).

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T.E.D.    homepage   - http://www.telepath.com/dennison/Ted/TED.html

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