From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Generic procedures and their parameters
Date: Wed, 6 Sep 2006 17:09:53 +0200
Date: 2006-09-06T17:09:54+02:00 [thread overview]
Message-ID: <15ibl2xejtc68.1eg90p1fwn18p$.dlg@40tude.net> (raw)
In-Reply-To: edml3e$pnf$1@sunnews.cern.ch
On Wed, 06 Sep 2006 16:14:07 +0200, Maciej Sobczak wrote:
>> Why is that shaky? Integer IS ordered.
>
> Is it also tagged? Do you want it to be?
Not Integer, but Integer'Class.
> Integer is not only Ordered. It's also Summable, Subtractable,
[...]
Yes, it is called multiple inheritance.
> In C++ the fact
> that int is ordered does not require that it relates to some Ordered
> class.
Which is unfortunate for both C++ and Ada, because "to be ordered" = "a
member of Ordered class." There is no obvious reason why they should be
different.
>> A hierarchy with Object at the top would be a Good Thing, IMHO. Trees
>> are more aesthetically pleasing than forests.
>
> Opinions vary on this subject. :-)
One does not exclude other. Ada provides a powerful type cloning mechanism
(I mean: type X is new Y, unfortunately not for types, which are visibly
tagged). You can take a branch and plant it as a new tree.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2006-09-06 15:09 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-06 8:51 Generic procedures and their parameters Maciej Sobczak
2006-09-06 9:43 ` Dmitry A. Kazakov
2006-09-06 12:36 ` Maciej Sobczak
2006-09-06 13:11 ` Robert A Duff
2006-09-06 14:14 ` Maciej Sobczak
2006-09-06 15:09 ` Dmitry A. Kazakov [this message]
2006-09-06 16:35 ` Georg Bauhaus
2006-09-07 7:32 ` Dmitry A. Kazakov
2006-09-07 6:48 ` Georg Bauhaus
2006-09-07 10:19 ` Dmitry A. Kazakov
2006-09-08 9:11 ` Maciej Sobczak
2006-09-08 10:19 ` Dmitry A. Kazakov
2006-09-09 14:49 ` Robert A Duff
2006-09-09 15:34 ` Dmitry A. Kazakov
2006-09-09 23:26 ` Jeffrey R. Carter
2006-09-10 11:49 ` Robert A Duff
2006-09-10 19:43 ` Jeffrey R. Carter
2006-09-06 13:02 ` Robert A Duff
2006-09-06 14:09 ` Dmitry A. Kazakov
2006-09-08 3:35 ` Randy Brukardt
2006-09-08 7:21 ` Dmitry A. Kazakov
2006-09-09 1:29 ` Randy Brukardt
2006-09-09 7:14 ` Dmitry A. Kazakov
2006-09-09 14:32 ` Robert A Duff
2006-09-06 12:56 ` Robert A Duff
2006-09-07 2:47 ` Steve
2006-09-07 7:47 ` Dmitry A. Kazakov
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