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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: GNAT packages in Linux distributions
Date: Tue, 11 May 2010 18:45:14 +0200
Date: 2010-05-11T18:45:12+02:00	[thread overview]
Message-ID: <quqkqeas8pu2$.1w5pelct29juv.dlg@40tude.net> (raw)
In-Reply-To: op.vcjtnsp5xmjfy8@garhos

On Tue, 11 May 2010 18:05:42 +0200, Yannick Duch�ne (Hibou57) wrote:

> Le Tue, 11 May 2010 17:46:58 +0200, Pascal Obry <pascal@obry.net> a �crit:
> 
>> Le 11/05/2010 09:39, Dmitry A. Kazakov a �crit :
>>> I am not. Eiffel does it wrong. SPARK does it right.
>>
>> Eiffel and SPARK are completely different beasts, I do not see how you
>> can compare them.
>>
> Can be compared in their attempt to make proofs or to draw a path to it.  
> But Eiffel's concepts are mostly a kind of debugging or runtime exception  
> oriented, and you are right if you were to point that Eiffel is not to do  
> static inference.

Because it does not include exceptions in the contract, which is obviously
wrong.

> While they can be compared in some way, there is indeed a big difference :  
> Eiffel is runtime oriented, SPARK is static analysis oriented.

A proof of correctness cannot be run-time. Incorrectness need no proof.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de



  parent reply	other threads:[~2010-05-11 16:45 UTC|newest]

Thread overview: 95+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-09 17:40 GNAT packages in Linux distributions Dmitry A. Kazakov
2010-05-09 18:16 ` Ludovic Brenta
2010-05-09 19:36   ` Dmitry A. Kazakov
2010-05-09 21:26     ` Ludovic Brenta
2010-05-09 21:34       ` Yannick Duchêne (Hibou57)
2010-05-10  1:20         ` Ludovic Brenta
2010-05-10  1:26           ` Ludovic Brenta
2010-05-25 20:40             ` Yannick Duchêne (Hibou57)
2010-05-10  9:41         ` Stephen Leake
2010-05-10  9:46           ` Ludovic Brenta
2010-05-10 14:29             ` sjw
2010-05-11  7:51               ` Ludovic Brenta
2010-05-11  9:33                 ` sjw
2010-05-10 18:47           ` Yannick Duchêne (Hibou57)
2010-05-09 21:28     ` Yannick Duchêne (Hibou57)
2010-05-09 21:30       ` Yannick Duchêne (Hibou57)
2010-05-09 22:44       ` Simon Wright
2010-05-10  7:54         ` Dmitry A. Kazakov
2010-05-10  8:02       ` Dmitry A. Kazakov
2010-05-10 18:45         ` Yannick Duchêne (Hibou57)
2010-05-10 21:00           ` Ludovic Brenta
2010-05-10 22:17             ` Yannick Duchêne (Hibou57)
2010-05-11  6:56               ` Ludovic Brenta
2010-05-11  7:39           ` Dmitry A. Kazakov
2010-05-11  8:06             ` Yannick Duchêne (Hibou57)
2010-05-11 15:46             ` Pascal Obry
2010-05-11 16:05               ` Yannick Duchêne (Hibou57)
2010-05-11 16:09                 ` Pascal Obry
2010-05-11 16:09                   ` Pascal Obry
2010-05-11 17:08                     ` stefan-lucks
2010-05-11 16:39                       ` Yannick Duchêne (Hibou57)
2010-05-11 19:45                         ` Yannick Duchêne (Hibou57)
2010-05-11 23:44                           ` Yannick Duchêne (Hibou57)
2010-05-12 12:12                             ` Mark Lorenzen
2010-05-12 14:55                               ` Yannick Duchêne (Hibou57)
2010-05-11 17:35                       ` Pascal Obry
2010-05-11 18:06                         ` Yannick Duchêne (Hibou57)
2010-05-11 16:23                   ` Yannick Duchêne (Hibou57)
2010-05-11 16:41                     ` J-P. Rosen
2010-05-11 16:45                 ` Dmitry A. Kazakov [this message]
2010-05-11 19:21                   ` Yannick Duchêne (Hibou57)
2010-05-12  8:41                   ` stefan-lucks
2010-05-12 14:52                     ` Yannick Duchêne (Hibou57)
2010-05-12 15:59                       ` Phil Thornley
2010-05-12 16:49                         ` Yannick Duchêne (Hibou57)
2010-05-13  8:05                           ` Phil Thornley
2010-05-12 15:37                     ` Dmitry A. Kazakov
2010-05-12 16:06                       ` Yannick Duchêne (Hibou57)
2010-05-12 17:24                         ` Dmitry A. Kazakov
2010-05-12 18:09                           ` Georg Bauhaus
2010-05-12 18:33                             ` Dmitry A. Kazakov
2010-05-12 18:53                               ` Georg Bauhaus
2010-05-12 21:57                                 ` Dmitry A. Kazakov
2010-05-13  2:03                                   ` Georg Bauhaus
2010-05-13  8:39                                     ` Dmitry A. Kazakov
2010-05-14 23:45                                       ` Georg Bauhaus
2010-05-15  9:30                                         ` Dmitry A. Kazakov
2010-05-15 18:39                                           ` Georg Bauhaus
2010-05-15 20:33                                             ` Dmitry A. Kazakov
2010-05-15  0:17                             ` Robert A Duff
2010-05-15  9:40                               ` Dmitry A. Kazakov
2010-05-12 18:15                           ` Georg Bauhaus
2010-05-25 20:45                           ` Yannick Duchêne (Hibou57)
2010-05-26  7:55                             ` Dmitry A. Kazakov
2010-05-26  8:38                             ` stefan-lucks
2010-05-26  8:01                               ` Yannick Duchêne (Hibou57)
2010-05-26 11:25                               ` Yannick Duchêne (Hibou57)
2010-05-26 13:02                                 ` stefan-lucks
2010-05-26 12:22                                   ` Yannick Duchêne (Hibou57)
2010-05-27 12:47                                     ` stefan-lucks
2010-05-27 12:26                                       ` Yannick Duchêne (Hibou57)
2010-05-26 13:06                                   ` (see below)
2010-05-27 12:41                                     ` stefan-lucks
2010-05-27 12:29                                       ` Yannick Duchêne (Hibou57)
2010-05-27 15:21                                       ` (see below)
2010-06-03  3:16                                         ` Yannick Duchêne (Hibou57)
2010-06-03 10:42                                           ` Brian Drummond
2010-06-03 21:14                                             ` (see below)
2010-06-03 22:00                                               ` Britt Snodgrass
2010-06-03 22:29                                                 ` (see below)
2010-06-03 13:49                                           ` (see below)
2010-06-04 13:49                                             ` Georg Bauhaus
2010-06-04 13:53                                               ` Georg Bauhaus
2010-06-04 14:24                                               ` Yannick Duchêne (Hibou57)
2010-06-04 17:34                                                 ` Georg Bauhaus
2010-06-04 15:29                                               ` (see below)
2010-05-12 18:10                       ` stefan-lucks
2010-05-12 17:48                         ` Dmitry A. Kazakov
2010-05-13  0:37                           ` stefan-lucks
2010-05-13  9:09                             ` Dmitry A. Kazakov
2010-05-13  0:33                     ` Yannick Duchêne (Hibou57)
2010-05-10 14:15       ` GNAT Pro license (was: " Peter Hermann
2010-05-10  1:40 ` Björn Persson
2010-05-10  2:04   ` Yannick Duchêne (Hibou57)
2010-05-10  7:01     ` Ludovic Brenta
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