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From: Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP>
Subject: Re: Range check for type 'Integer'
Date: Mon, 17 Jun 2013 11:23:33 +0000 (UTC)
Date: 2013-06-17T11:23:33+00:00	[thread overview]
Message-ID: <kpmrjl$eps$1@dont-email.me> (raw)
In-Reply-To: 7f33982d-3bcf-452e-a3b3-3a0a28505ff1@x20g2000vbe.googlegroups.com

On 2013-06-17, Peter Brooks <peter.h.m.brooks@gmail.com> wrote:
>
> So the 'Integer' has rolled over to negative and then rolled back to 0
> - but with no run-time error.
>
> Why is there no range check error on type Integer?

Because GNAT does not enable integer overflow detection by default; this
is a design decision which was a major mistake. You need to compile your
program using the switch to enable integer overflow detection.

BTW, this same program was posted a few days ago with the same problem
description. Is this a problem posed as part of a class you are taking ?

Simon.

-- 
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world


  reply	other threads:[~2013-06-17 11:23 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-17 10:57 Range check for type 'Integer' Peter Brooks
2013-06-17 11:23 ` Simon Clubley [this message]
2013-06-17 11:54   ` Simon Wright
2013-06-17 12:55   ` Peter Brooks
2013-06-17 13:28     ` Shark8
2013-06-17 13:45       ` Peter Brooks
2013-06-17 21:16         ` Shark8
2013-06-18 10:48     ` Stephen Leake
2013-06-17 12:46 ` Dmitry A. Kazakov
2013-06-17 13:23 ` Bug in 'gnatmake' (Was: Range check for type 'Integer') Jacob Sparre Andersen
2013-06-17 13:32   ` Bug in 'gnatmake' Jacob Sparre Andersen
2013-06-17 16:50   ` Bug in 'gnatmake' (Was: Range check for type 'Integer') Robert A Duff
2013-06-17 19:15     ` Peter Brooks
2013-06-17 21:09       ` Shark8
2013-06-17 21:22       ` Jeffrey Carter
2013-06-18  1:21         ` Peter Brooks
2013-06-18  6:33           ` Jeffrey Carter
2013-06-18  7:29       ` Georg Bauhaus
2013-06-17 18:49   ` Bug in 'gnatmake' Simon Wright
2013-06-18  9:09     ` Elaboration order handling (Was: Bug in 'gnatmake') Jacob Sparre Andersen
2013-06-18 17:09       ` Robert A Duff
2013-06-18 22:52         ` Adam Beneschan
2013-06-19  1:21           ` Jeffrey Carter
2013-06-19 12:38             ` Robert A Duff
2013-06-19 20:43               ` Georg Bauhaus
2013-06-20  0:37                 ` Robert A Duff
2013-06-20 19:56                   ` Georg Bauhaus
2013-06-19 12:22           ` Robert A Duff
2013-06-19 15:46             ` Adam Beneschan
2013-06-19 16:41               ` Robert A Duff
2013-06-19 20:47               ` Georg Bauhaus
2013-06-19 21:36                 ` Adam Beneschan
2013-06-20  0:57                 ` Robert A Duff
2013-06-20  1:09                   ` Jeffrey Carter
2013-06-20  2:29                     ` Adam Beneschan
2013-06-20  6:08                       ` Jeffrey Carter
2013-06-20 15:11                     ` Robert A Duff
2013-06-21  5:26                       ` Jeffrey Carter
2013-06-21 15:48                         ` Adam Beneschan
2013-06-21 18:35                           ` Jeffrey Carter
2013-06-21 19:10                             ` Robert A Duff
2013-06-21 21:27                               ` Jeffrey Carter
2013-06-21 20:43                             ` Adam Beneschan
2013-06-21 21:44                               ` Jeffrey Carter
2013-06-21 23:47                                 ` Robert A Duff
2013-06-23 14:43                                   ` AdaMagica
2013-06-21 18:58                         ` null declarative parts (was: Re: Elaboration order handling) Robert A Duff
2013-06-21 20:42                           ` null declarative parts Georg Bauhaus
2013-06-20  2:11                   ` Elaboration order handling (Was: Bug in 'gnatmake') Adam Beneschan
2013-06-20 14:44                     ` Robert A Duff
2013-06-20 11:24                   ` G.B.
2013-06-20 15:23                     ` Robert A Duff
2013-06-19 21:00             ` Georg Bauhaus
2013-06-19 22:26             ` Randy Brukardt
2013-06-20  0:31               ` Robert A Duff
2013-06-20 21:36                 ` Randy Brukardt
2013-06-19 13:07         ` Bill Findlay
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