From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada vs Eiffel - Ada programmer approach
Date: Tue, 26 May 2009 21:52:58 +0200
Date: 2009-05-26T21:52:58+02:00 [thread overview]
Message-ID: <uw2akaqgnepe$.1i0g9dauyj3x3.dlg@40tude.net> (raw)
In-Reply-To: 4a1c2dfe$0$30236$9b4e6d93@newsspool1.arcor-online.net
On Tue, 26 May 2009 19:59:26 +0200, Georg Bauhaus wrote:
> Dmitry A. Kazakov schrieb:
>
>> There is no loop since "contract is satisfied" is not a variable. Otherwise
>> you cannot design "by contract", obviously.
>
> The Eiffel answer is that yes, you can do that because
> in order to get anything done, assertion checking must
> not happen at times. That's a reasonable design, because
> there is no practical alternative. ;-)
Confusing things? (:-))
>> Ada's static typing system and SPARK do it right.
>
> SPARK imposes limitations that are not present when employing
> DbC.
More checks you want to do more language limitations you need. Nothing is
for free.
> SPARK cannot replace DbC, or improve it, and vice versa,
> basically because DbC (not used as static assertions only) and
> SPARK are largely incommensurable.
Nope, the point is not how many checks, it is about consistency of checks.
SPARK does it consistently, Eiffel does not.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2009-05-26 19:52 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-24 8:39 Ada vs Eiffel - Ada programmer approach Tomek Walkuski
2009-05-24 11:49 ` anon
2009-05-24 12:26 ` Georg Bauhaus
2009-05-24 12:17 ` Georg Bauhaus
2009-05-24 16:31 ` Pascal Obry
2009-05-25 16:32 ` Rugxulo
2009-05-26 13:37 ` Ludovic Brenta
2009-05-26 14:51 ` Dmitry A. Kazakov
2009-05-26 17:26 ` Georg Bauhaus
2009-05-26 17:39 ` Dmitry A. Kazakov
2009-05-26 17:59 ` Georg Bauhaus
2009-05-26 19:52 ` Dmitry A. Kazakov [this message]
2009-05-26 20:14 ` Pascal Obry
2009-05-26 20:25 ` Pascal Obry
2009-05-26 21:28 ` Dmitry A. Kazakov
2009-05-26 18:23 ` Jeffrey R. Carter
2009-05-26 15:07 ` Tim Rowe
2009-05-26 16:37 ` Georg Bauhaus
2009-05-28 8:37 ` Nicholas Paul Collin Gloucester
2009-06-01 16:22 ` Tim Rowe
2009-06-04 7:35 ` Hibou57 (Yannick Duchêne)
2009-06-04 9:46 ` Martin
2009-06-04 12:16 ` Hibou57 (Yannick Duchêne)
2009-06-04 9:56 ` Jean-Pierre Rosen
2009-06-16 6:58 ` ardjussi
2009-06-16 17:22 ` Jeffrey R. Carter
2009-05-26 18:21 ` Jeffrey R. Carter
2009-05-26 18:35 ` Dmitry A. Kazakov
2009-06-04 7:39 ` Hibou57 (Yannick Duchêne)
2009-06-04 9:02 ` Ludovic Brenta
2009-06-04 9:19 ` Dmitry A. Kazakov
2009-06-04 12:14 ` Hibou57 (Yannick Duchêne)
2009-06-04 14:14 ` Dmitry A. Kazakov
2009-06-04 16:45 ` Jeffrey R. Carter
2009-06-04 7:30 ` Hibou57 (Yannick Duchêne)
2009-06-04 7:55 ` Ludovic Brenta
2009-06-04 8:45 ` Georg Bauhaus
2009-06-04 9:03 ` Ludovic Brenta
2009-06-04 13:25 ` Robert A Duff
2009-06-04 13:39 ` Martin
2009-06-04 13:08 ` stefan-lucks
2009-06-08 12:41 ` Samuel Tardieu
2009-06-08 19:37 ` Robert A Duff
2009-06-08 22:52 ` Randy Brukardt
2009-06-09 7:39 ` Dmitry A. Kazakov
2009-06-10 6:55 ` Hibou57 (Yannick Duchêne)
2009-06-10 6:58 ` Hibou57 (Yannick Duchêne)
2009-06-10 11:10 ` Georg Bauhaus
2009-06-04 7:04 ` Hibou57 (Yannick Duchêne)
2009-06-04 6:04 ` Hibou57 (Yannick Duchêne)
2009-06-06 14:27 ` Marco
2009-06-06 15:37 ` Tomek Wałkuski
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