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From: dennison@telepath.com (Ted Dennison)
Newsgroups: comp.lang.ada
Subject: Re: Tagged types (beginner's question) !
Date: 30 Aug 2002 06:35:33 -0700
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Vincent DIEMUNSCH <"vincent.diemunsch"@edf.fr@NO.SPAM.PLEASE> wrote in message news:<akkq54$kcq$1@clnews.edf.fr>...

>     and many other more complicated things but I always have the same
> error message from GNAT :
>         "Dynamiclly tagged expression required".

This message generally means that the expression in question needs to
have to have a 'Class in it somewhere.