From: Marius Amado Alves <amado.alves@netcabo.pt>
To: comp.lang.ada@ada-france.org
Subject: Re: Why can't you create a out of order subtype?
Date: Wed, 2 Feb 2005 20:35:24 +0000
Date: 2005-02-02T20:35:24+00:00 [thread overview]
Message-ID: <mailman.116.1107376411.527.comp.lang.ada@ada-france.org> (raw)
In-Reply-To: <ctra1p$nnl$1@titan.btinternet.com>
>> declare
>> M : Msg := Whatever;
>> V : Vowelmsg;
>> begin
>> V := Vowelmsg'Value (Msg'Image (M));
>> -- if control reaches here then M is a vowel
>> exception
>> when Constraint_Error => -- M is not a vowel
>> end;
>
> That's very, very, very slow...
No, it's only very, very slow :-)
If (and only if :-) that's too slow for the application then sure, use
UC and 'Valid. And watch out for those uninitialized variables.
next prev parent reply other threads:[~2005-02-02 20:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 23:51 Why can't you create a out of order subtype? brett_gengler
2005-02-02 0:24 ` Jeffrey Carter
2005-02-02 17:55 ` Marius Amado Alves
2005-02-02 18:50 ` Pascal Obry
2005-02-02 20:22 ` Marius Amado Alves
2005-02-03 4:36 ` Wes Groleau
2005-02-03 12:59 ` Marius Amado Alves
2005-02-04 3:42 ` Wes Groleau
2005-02-02 19:35 ` Martin Dowie
2005-02-02 20:35 ` Marius Amado Alves [this message]
2005-02-02 21:18 ` Martin Dowie
2005-02-03 19:40 ` Robert A Duff
2005-02-03 20:22 ` Marius Amado Alves
2005-02-03 22:05 ` Robert A Duff
2005-02-04 6:49 ` Martin Dowie
2005-02-02 22:26 ` Georg Bauhaus
2005-02-03 23:09 ` Robert A Duff
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