From: Ted Dennison <dennison@telepath.com>
Subject: Re: Enumeration representation
Date: 1999/09/10
Date: 1999-09-10T00:00:00+00:00 [thread overview]
Message-ID: <7rb8c3$fql$1@nnrp1.deja.com> (raw)
In-Reply-To: 37D8E3BC.175DB72C@newtech.it
In article <37D8E3BC.175DB72C@newtech.it>,
Alex <busato@newtech.it> wrote:
> type Status is (a,b,c,d,e);
> pragma Discard_Names(Status);
>
> for Status use
> ( a => 0,
> b => 20,
> c => 400,
> d => 800,
> e => 1600);
>
> S : Status;
> begin
> S := b;
> Put(" => " & S'img);
> end MainEnum;
>
> I've compiled it with Gnat (the latest version)
> the output of program is 1 but I was expecting another value : 20.
> Does Gnat support this clause?
'img is not defined in Ada. It's a Gnat attribute. The Gnat RM I have
says this should be equivalent to Status'image(S), in which case I'd
expect to see you get a "b".
Generally I'd expect you to see that Status'image(S) = "b",
Status'pos(S) = 1, and To_Integer(S) = 20 (where To_Integer is an
instatiation of unchecked_conversion between Status and Integer).
--
T.E.D.
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next prev parent reply other threads:[~1999-09-10 0:00 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-09-10 0:00 Enumeration representation Alex
1999-09-10 0:00 ` Ted Dennison [this message]
1999-09-10 0:00 ` Robert Dewar
1999-09-13 0:00 ` Ted Dennison
1999-09-10 0:00 ` Keith Thompson
1999-09-11 0:00 ` Robert Dewar
1999-09-11 0:00 ` Keith Thompson
1999-09-12 0:00 ` Bryce Bardin
1999-09-13 0:00 ` Robert Dewar
1999-09-13 0:00 ` Keith Thompson
1999-09-13 0:00 ` Robert Dewar
1999-09-12 0:00 ` Keith Thompson
1999-09-13 0:00 ` Robert Dewar
1999-09-13 0:00 ` Keith Thompson
1999-09-14 0:00 ` Robert Dewar
1999-09-13 0:00 ` Ted Dennison
1999-09-13 0:00 ` Robert A Duff
1999-09-13 0:00 ` Robert Dewar
1999-09-10 0:00 ` Matthew Heaney
1999-09-10 0:00 ` Robert Dewar
1999-09-10 0:00 ` David C. Hoos, Sr.
1999-09-10 0:00 ` Robert Dewar
1999-09-13 0:00 ` Alex
-- strict thread matches above, loose matches on Subject: below --
2004-01-01 20:44 Luke A. Guest
2004-01-01 21:45 ` Stephen Leake
2004-01-01 22:01 ` Luke A. Guest
2004-01-02 1:17 ` tmoran
2004-01-02 1:29 ` Stephen Leake
2004-01-02 3:10 ` Luke A. Guest
2004-01-02 2:46 ` Robert A Duff
2004-01-02 3:12 ` Luke A. Guest
2004-01-02 13:58 ` Marin David Condic
2004-01-02 21:39 ` Pat Rogers
2004-01-03 13:42 ` Marin David Condic
2004-01-03 1:53 ` Robert A Duff
2004-01-02 20:52 ` Randy Brukardt
2004-01-02 21:05 ` Luke A. Guest
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