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From: "J-P. Rosen" <rosen@adalog.fr>
Subject: Re: Silly and stupid post-condition or not ?
Date: Fri, 03 Feb 2012 07:26:00 +0100
Date: 2012-02-03T07:26:00+01:00	[thread overview]
Message-ID: <jgfulk$gu$1@dont-email.me> (raw)
In-Reply-To: <82k445fu9n.fsf@stephe-leake.org>

Le 02/02/2012 10:40, Stephen Leake a écrit :
> I agree with Dmitry; post conditions should be _complete_. If the Ada
> post condition language is not strong enough to be complete, don't use
> it; use natural language comments.
> 
I don't agree with that. Imagine you need (pre-2012) a type for even
numbers between 0 and 100.
Would you declare:
   type My_Int is range 0..100;

or would you use Integer, on the ground that since you cannot express
all of your requirements, you express none?

-- 
J-P. Rosen
Adalog
2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX
Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00
http://www.adalog.fr



  parent reply	other threads:[~2012-02-03  6:25 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-30 23:11 Silly and stupid post‑condition or not ? Yannick Duchêne (Hibou57)
2012-01-31  6:47 ` J-P. Rosen
2012-01-31 18:48   ` Jeffrey Carter
2012-01-31 22:02     ` Yannick Duchêne (Hibou57)
2012-01-31  8:54 ` Dmitry A. Kazakov
2012-01-31  9:35   ` Georg Bauhaus
2012-01-31 10:22     ` Dmitry A. Kazakov
2012-01-31 12:33       ` Georg Bauhaus
2012-01-31 13:52         ` Dmitry A. Kazakov
2012-01-31 15:34           ` Georg Bauhaus
2012-01-31 16:24             ` Dmitry A. Kazakov
2012-01-31 19:44               ` Georg Bauhaus
2012-02-01  8:41                 ` Dmitry A. Kazakov
2012-02-01 10:37                   ` stefan-lucks
2012-02-01 10:51                     ` Yannick Duchêne (Hibou57)
2012-02-01 13:49                     ` Yannick Duchêne (Hibou57)
2012-02-01 13:49                     ` Dmitry A. Kazakov
2012-02-01 16:37                       ` stefan-lucks
2012-02-02  1:50                         ` Silly and stupid post�?'condition " Randy Brukardt
2012-02-02  1:56                           ` Silly and stupid postâ?'condition or not ? Yannick Duchêne (Hibou57)
2012-02-03  2:45                             ` Silly and stupid post�?'condition or not ? Randy Brukardt
2012-02-02  8:25                         ` Silly and stupid post‑condition " Dmitry A. Kazakov
2012-02-02  9:01                           ` stefan-lucks
2012-02-02  9:18                           ` stefan-lucks
2012-02-02 10:04                             ` Dmitry A. Kazakov
2012-01-31 22:08         ` Yannick Duchêne (Hibou57)
2012-01-31 17:28 ` Dmitry A. Kazakov
2012-01-31 22:12   ` Yannick Duchêne (Hibou57)
2012-02-01  8:49     ` Dmitry A. Kazakov
2012-02-01  8:36 ` Stephen Leake
2012-02-01 16:30   ` Silly and stupid post-condition " Adam Beneschan
2012-02-02  9:40     ` Stephen Leake
2012-02-02 13:20       ` Georg Bauhaus
2012-02-02 13:35         ` Yannick Duchêne (Hibou57)
2012-02-03  3:13       ` Randy Brukardt
2012-02-03  3:33         ` Yannick Duchêne (Hibou57)
2012-02-03  8:12         ` Simon Wright
2012-02-07  2:29           ` BrianG
2012-02-07 10:43             ` Simon Wright
2012-02-08  2:25               ` BrianG
2012-02-07 21:15             ` Robert A Duff
2012-02-03  9:11         ` Dmitry A. Kazakov
2012-02-04  3:27           ` Randy Brukardt
2012-02-04 10:15             ` Dmitry A. Kazakov
2012-02-03 12:25         ` Phil Thornley
2012-02-04  9:30         ` Phil Thornley
2012-02-04 12:02         ` Phil Thornley
2012-02-05  6:18           ` Randy Brukardt
2012-02-05 10:23             ` Phil Thornley
2012-02-05 10:55               ` Yannick Duchêne (Hibou57)
2012-02-05 15:03               ` Robert A Duff
2012-02-05 18:04                 ` Phil Thornley
2012-02-05 21:27                   ` Robert A Duff
2012-02-05 23:09                     ` Phil Thornley
2012-02-07  2:05               ` Randy Brukardt
2012-02-07  9:38                 ` Dmitry A. Kazakov
2012-02-05 11:31             ` Yannick Duchêne (Hibou57)
2012-02-05 14:50             ` Robert A Duff
2012-02-07  2:11               ` Randy Brukardt
2012-02-07  2:34             ` BrianG
2012-02-07  4:38               ` Yannick Duchêne (Hibou57)
2012-02-09  3:10               ` Randy Brukardt
2012-02-04 23:07         ` Stephen Leake
2012-02-05  2:49           ` Yannick Duchêne (Hibou57)
2012-02-05  6:29           ` Randy Brukardt
2012-02-05 11:40             ` Yannick Duchêne (Hibou57)
2012-02-07  1:36               ` Randy Brukardt
2012-02-05 15:16             ` Robert A Duff
2012-02-06  4:56               ` Yannick Duchêne (Hibou57)
2012-02-06 14:39                 ` Robert A Duff
2012-02-06 16:12                   ` Yannick Duchêne (Hibou57)
2012-02-07  1:46               ` Randy Brukardt
2012-02-07 17:24                 ` Robert A Duff
2012-02-03  6:26       ` J-P. Rosen [this message]
2012-02-03  9:12         ` Dmitry A. Kazakov
2012-02-03  9:48           ` Yannick Duchêne (Hibou57)
2012-02-03 11:09             ` Dmitry A. Kazakov
2012-02-03 11:40               ` Yannick Duchêne (Hibou57)
2012-02-03 13:18                 ` Dmitry A. Kazakov
2012-02-03 14:14                   ` Yannick Duchêne (Hibou57)
2012-02-03 14:45                     ` Dmitry A. Kazakov
2012-02-04  3:16           ` Randy Brukardt
2012-02-04  6:27             ` Yannick Duchêne (Hibou57)
2012-02-04 10:47             ` Dmitry A. Kazakov
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