From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: A new notion: stronglly-typed-by-user language
Date: Fri, 16 Apr 2010 23:51:14 +0200
Date: 2010-04-16T23:51:14+02:00 [thread overview]
Message-ID: <1dacp2di5tfhm.ieswqfkc1d3f$.dlg@40tude.net> (raw)
In-Reply-To: 4bc8cde4$0$28934$ba4acef3@reader.news.orange.fr
On Fri, 16 Apr 2010 22:53:04 +0200, Pascal Obry wrote:
> Le 16/04/2010 19:24, Dmitry A. Kazakov a �crit :
>> BTW, the Ada's OO kernel has this same design flaw. You can clone all
>> types, but tagged:
>>
>> type Count is new Current; -- This is OK only if Current is not tagged!
>
> type Count is new Current with null record;
That would not create an unrelated type, the class is same.
function "+" (Left : Current; Right : Current'Class) return Current;
X : Current;
Y : Count;
begin
X := X + Y; -- No type error
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2010-04-16 21:51 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-15 8:59 A new notion: stronglly-typed-by-user language J-P. Rosen
2010-04-15 9:19 ` Martin Krischik
2010-04-16 0:22 ` BrianG
2010-04-16 6:26 ` Martin Krischik
2010-04-15 9:59 ` Dmitry A. Kazakov
2010-04-15 10:49 ` Georg Bauhaus
2010-04-15 21:31 ` Maciej Sobczak
2010-04-16 7:28 ` J-P. Rosen
2010-04-16 7:48 ` Dmitry A. Kazakov
2010-04-16 15:32 ` Maciej Sobczak
2010-04-16 16:52 ` Georg Bauhaus
2010-04-16 17:24 ` Dmitry A. Kazakov
2010-04-16 20:53 ` Pascal Obry
2010-04-16 21:51 ` Dmitry A. Kazakov [this message]
2010-04-16 20:20 ` J-P. Rosen
2010-04-16 20:50 ` Maciej Sobczak
2010-04-17 5:25 ` J-P. Rosen
2010-04-17 7:00 ` Dmitry A. Kazakov
2010-04-17 11:40 ` J-P. Rosen
2010-04-17 14:09 ` Dmitry A. Kazakov
2010-04-17 14:33 ` Maciej Sobczak
2010-04-17 18:57 ` J-P. Rosen
2010-04-17 22:02 ` Maciej Sobczak
2010-04-18 8:04 ` J-P. Rosen
2010-04-18 20:17 ` Maciej Sobczak
2010-04-16 7:29 ` Dmitry A. Kazakov
2010-04-16 10:34 ` xavier grave
2010-04-16 19:26 ` Gautier write-only
2010-04-18 0:27 ` Gene
2010-04-18 20:38 ` Gautier write-only
2010-04-19 8:46 ` Maciej Sobczak
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