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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada 2012 Constraints (WRT an Ada IR)
Date: Mon, 12 Dec 2016 21:53:23 +0100
Date: 2016-12-12T21:53:23+01:00	[thread overview]
Message-ID: <o2n2o1$1515$1@gioia.aioe.org> (raw)
In-Reply-To: o2mroh$dsk$1@dont-email.me

On 2016-12-12 19:55, G.B. wrote:
> On 12/12/2016 18:39, Dmitry A. Kazakov wrote:
>> As I said before it must be moved to the post-condition,
>> Storage_Error, or whatever raised upon stack overflow included.
>
> Could you please show a good Post aspect for
>
> function Plus_Too (A, B: Standard.Integer)
>                   return Standard.Integer is
> begin
>    return A + B;
> end Plus_Too;

None. Don't use aspects they are not good. I have already listed 
post-conditions, see my post from 2016-12-09.

>>> My answer:
>>> The declaration should include that they must be related by A > B.
>>
>> They are not.
>
> Only when the client has violated the contract about
> which the programmer has never been told...

Implied contracts are outside the scope. They question was about the 
explicit ones. There is an infinite number of implied contracts which 
can be violated, e.g. the one that the Earth does not turn black hole...

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

  reply	other threads:[~2016-12-12 20:53 UTC|newest]

Thread overview: 195+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-28 23:49 Ada 2012 Constraints (WRT an Ada IR) Shark8
2016-11-29  8:17 ` G.B.
2016-11-29 20:32   ` Shark8
2016-11-29 20:44     ` Dmitry A. Kazakov
2016-11-29 20:51       ` Shark8
2016-11-29 21:06         ` Dmitry A. Kazakov
2016-11-29 22:59           ` Shark8
2016-11-30  8:31             ` Dmitry A. Kazakov
2016-11-30 18:28               ` Shark8
2016-11-30 20:26                 ` Niklas Holsti
2016-12-01  0:16                   ` Shark8
2016-12-01 22:15                     ` Randy Brukardt
2016-11-30 20:45                 ` Dmitry A. Kazakov
2016-12-01  0:58                   ` Shark8
2016-12-01  8:55                     ` Dmitry A. Kazakov
2016-12-01 22:26                       ` Randy Brukardt
2016-12-02 16:21                         ` Dmitry A. Kazakov
2016-12-02 19:15                           ` Randy Brukardt
2016-12-03 10:21                             ` Dmitry A. Kazakov
2016-12-02 19:50                           ` G.B.
2016-12-03 10:23                             ` Dmitry A. Kazakov
2016-12-03 14:02                               ` G.B.
2016-12-03 16:26                                 ` Dmitry A. Kazakov
2016-12-04 15:28                                   ` Robert Eachus
2016-12-05  8:41                                     ` Stefan.Lucks
2016-12-05  8:58                                       ` Dmitry A. Kazakov
2016-12-05 11:09                                         ` Simon Wright
2016-12-05 18:42                                           ` Shark8
2016-12-05 22:13                                             ` Dmitry A. Kazakov
2016-12-06 20:51                                               ` Shark8
2016-12-06 21:07                                                 ` Dmitry A. Kazakov
2016-12-06 21:44                                                   ` Shark8
2016-12-06 23:23                                                     ` Randy Brukardt
2016-12-07 22:42                                                       ` Shark8
2016-12-07  1:08                                                     ` Dennis Lee Bieber
2016-12-07  6:36                                                       ` Niklas Holsti
2016-12-07 13:10                                                         ` Dennis Lee Bieber
2016-12-07 22:55                                                           ` Brian Drummond
2016-12-08  2:44                                                         ` Shark8
2016-12-07 10:04                                                       ` G.B.
2016-12-07 10:14                                                         ` G.B.
2016-12-07 10:51                                                         ` J-P. Rosen
2016-12-08 18:33                                                           ` G.B.
2016-12-09  8:26                                                             ` J-P. Rosen
2016-12-09  8:56                                                               ` G.B.
2016-12-10 15:13                                                                 ` Jacob Sparre Andersen
2016-12-11 19:50                                                                   ` Shark8
2016-12-05 22:07                                           ` Dmitry A. Kazakov
2016-12-06 23:09                                             ` Randy Brukardt
2016-12-07 10:03                                               ` Dmitry A. Kazakov
2016-12-07 22:37                                                 ` Randy Brukardt
2016-12-08  8:46                                                   ` Dmitry A. Kazakov
2016-12-10 15:24                                               ` Jacob Sparre Andersen
2016-12-09  9:12                                           ` Robert Eachus
2016-12-05 19:22                                         ` G.B.
2016-12-05 22:18                                           ` Dmitry A. Kazakov
2016-12-05 22:12                                         ` Randy Brukardt
2016-12-05 22:26                                           ` Dmitry A. Kazakov
2016-12-06  9:29                                             ` Simon Wright
2016-12-06 10:01                                               ` Dmitry A. Kazakov
2016-12-06 23:15                                             ` Randy Brukardt
2016-12-07 10:20                                               ` Dmitry A. Kazakov
2016-12-07 22:26                                                 ` Randy Brukardt
2016-12-08  8:57                                                   ` Dmitry A. Kazakov
2016-12-08  9:42                                                     ` G.B.
2016-12-08 10:03                                                       ` Dmitry A. Kazakov
2016-12-08 18:35                                                         ` G.B.
2016-12-09  9:38                                                           ` Dmitry A. Kazakov
2016-12-11 11:21                                                             ` G.B.
2016-12-11 12:28                                                               ` Dmitry A. Kazakov
2016-12-11 13:31                                                                 ` G.B.
2016-12-11 15:40                                                                   ` Dmitry A. Kazakov
2016-12-11 20:51                                                                     ` G.B.
2016-12-12  8:27                                                                       ` Dmitry A. Kazakov
2016-12-12 15:31                                                                         ` G.B.
2016-12-12 17:39                                                                           ` Dmitry A. Kazakov
2016-12-12 18:55                                                                             ` G.B.
2016-12-12 20:53                                                                               ` Dmitry A. Kazakov [this message]
2016-12-13  7:15                                                                                 ` G.B.
2016-12-13  8:27                                                                                   ` Dmitry A. Kazakov
2016-12-13 10:39                                                                                     ` G.B.
2016-12-13 11:19                                                                                       ` Dmitry A. Kazakov
2016-12-13 16:59                                                                                         ` G.B.
2016-12-13 21:11                                                                                           ` Dmitry A. Kazakov
2016-12-13 22:13                                                                                             ` Shark8
2016-12-14  8:42                                                                                               ` Dmitry A. Kazakov
2016-12-14 11:04                                                                                                 ` G.B.
2016-12-14 11:25                                                                                                   ` Dmitry A. Kazakov
2016-12-14 12:44                                                                                                     ` G.B.
2016-12-14 12:52                                                                                                       ` Dmitry A. Kazakov
2016-12-14 16:31                                                                                                         ` G.B.
2016-12-14 16:52                                                                                                           ` Dmitry A. Kazakov
2016-12-14 18:14                                                                                                             ` G.B.
2016-12-14 12:05                                                                                                 ` G.B.
2016-12-14 19:23                                                                                                 ` Shark8
2016-12-14 20:04                                                                                                   ` Dmitry A. Kazakov
2016-12-14 21:46                                                                                                     ` Shark8
2016-12-15  8:41                                                                                                       ` Dmitry A. Kazakov
2016-12-15 10:31                                                                                                         ` G.B.
2016-12-15 13:17                                                                                                           ` Dmitry A. Kazakov
2016-12-15 13:27                                                                                                             ` Dmitry A. Kazakov
2016-12-15 19:50                                                                                                             ` G.B.
2016-12-16 10:04                                                                                                               ` Dmitry A. Kazakov
2016-12-16 11:48                                                                                                                 ` G.B.
2016-12-16 12:56                                                                                                                   ` Stefan.Lucks
2016-12-16 19:59                                                                                                                     ` Randy Brukardt
2016-12-16 20:35                                                                                                                     ` G.B.
2016-12-17  9:33                                                                                                                       ` Stefan.Lucks
2016-12-19 22:57                                                                                                                         ` Randy Brukardt
2016-12-16 13:24                                                                                                                   ` Dmitry A. Kazakov
2016-12-15 14:34                                                                                                         ` Shark8
2016-12-15 14:53                                                                                                           ` Dmitry A. Kazakov
2016-12-15 22:34                                                                                                             ` Shark8
2016-12-16  8:28                                                                                                               ` Dmitry A. Kazakov
2016-12-17  3:46                                                                                                                 ` Shark8
2016-12-14 12:21                                                                                             ` G.B.
2016-12-14 12:55                                                                                               ` Dmitry A. Kazakov
2016-12-14 16:21                                                                                                 ` G.B.
2016-12-14 16:55                                                                                                   ` Dmitry A. Kazakov
2016-12-14 18:55                                                                                                     ` G.B.
2016-12-13 18:25                                                                                         ` Shark8
2016-12-13 21:11                                                                                           ` Dmitry A. Kazakov
2016-12-13 22:32                                                                                             ` Shark8
2016-12-14  8:54                                                                                               ` Dmitry A. Kazakov
2016-12-14 22:53                                                                                                 ` Randy Brukardt
2016-12-15  8:44                                                                                                   ` Dmitry A. Kazakov
2016-12-15 22:19                                                                                                     ` Randy Brukardt
2016-12-16  8:38                                                                                                       ` Dmitry A. Kazakov
2016-12-16 19:51                                                                                                         ` Randy Brukardt
2016-12-17  9:13                                                                                                           ` Dmitry A. Kazakov
2016-12-19 22:33                                                                                                             ` Randy Brukardt
2016-12-20 11:00                                                                                                               ` Dmitry A. Kazakov
2016-12-21  0:54                                                                                                                 ` Shark8
2016-12-21  0:59                                                                                                                 ` Randy Brukardt
2016-12-21 15:56                                                                                                                   ` Dmitry A. Kazakov
2016-12-21 18:26                                                                                                                     ` G.B.
2016-12-21 21:15                                                                                                                       ` Dmitry A. Kazakov
2016-12-22  9:54                                                                                                                         ` G.B.
2016-12-22 10:16                                                                                                                           ` Dmitry A. Kazakov
2016-12-14 11:46                                                                                             ` G.B.
2016-12-12 19:48                                                                             ` Shark8
2016-12-12 20:46                                                                               ` Dmitry A. Kazakov
2016-12-12 21:33                                                                                 ` Shark8
2016-12-13  8:28                                                                                   ` Dmitry A. Kazakov
2016-12-13 18:53                                                                                     ` Shark8
2016-12-13 21:11                                                                                       ` Dmitry A. Kazakov
2016-12-13 22:16                                                                                         ` Shark8
2016-12-14  9:00                                                                                           ` Dmitry A. Kazakov
2016-12-11 23:58                                                                   ` Paul Rubin
2016-12-12  8:33                                                                     ` Dmitry A. Kazakov
2016-12-12 15:23                                                                       ` G.B.
2016-12-12 15:51                                                                         ` G.B.
2016-12-09 21:46                                                     ` Randy Brukardt
2016-12-13 11:56                                         ` Alejandro R. Mosteo
2016-12-13 15:02                                           ` Dmitry A. Kazakov
2016-12-13 17:38                                             ` Alejandro R. Mosteo
2016-12-05 22:06                                       ` Randy Brukardt
2016-11-29 17:53 ` Niklas Holsti
2016-11-29 18:21   ` Dmitry A. Kazakov
2016-11-29 20:45   ` Shark8
2016-11-30  0:03     ` Randy Brukardt
2016-11-30  0:59       ` Shark8
2016-12-01 10:33   ` AdaMagica
2016-11-29 23:52 ` Randy Brukardt
2016-11-30  1:24   ` Shark8
2016-11-30 22:12     ` Randy Brukardt
2016-11-30  1:29   ` Shark8
2016-11-30 22:17     ` Randy Brukardt
2016-12-01  1:21       ` Shark8
2016-12-01 22:07         ` Randy Brukardt
2016-12-01 10:06   ` AdaMagica
  -- strict thread matches above, loose matches on Subject: below --
2016-12-09 21:41 Randy Brukardt
2016-12-09 22:32 ` Niklas Holsti
2016-12-13  0:41   ` Randy Brukardt
2016-12-13  2:34     ` Shark8
2016-12-13 22:35       ` Randy Brukardt
2016-12-14  0:38         ` Shark8
2016-12-13 20:45     ` Niklas Holsti
2016-12-13 23:19       ` Randy Brukardt
2016-12-14  0:53         ` Shark8
2016-12-14 22:22           ` Randy Brukardt
2016-12-13 22:45 Randy Brukardt
2016-12-14 22:40 Randy Brukardt
2016-12-15  8:48 ` Dmitry A. Kazakov
2016-12-15 22:24   ` Randy Brukardt
2016-12-16  8:40     ` Dmitry A. Kazakov
2016-12-16 19:46       ` Randy Brukardt
2016-12-16 20:14         ` Dmitry A. Kazakov
2016-12-19 22:52           ` Randy Brukardt
2016-12-20 10:59             ` Dmitry A. Kazakov
2016-12-21  0:50               ` Randy Brukardt
2016-12-21 15:56                 ` Dmitry A. Kazakov
2016-12-21 22:03 Randy Brukardt
2016-12-21 23:02 ` Shark8
2016-12-21 22:12 Randy Brukardt
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