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From: "Hibou57 (Yannick Duchêne)" <yannick_duchene@yahoo.fr>
Subject: Re: not null
Date: Thu, 5 Mar 2009 17:07:27 -0800 (PST)
Date: 2009-03-05T17:07:27-08:00	[thread overview]
Message-ID: <25777a68-d857-4de6-a169-d4ba5b310b89@q11g2000yqh.googlegroups.com> (raw)
In-Reply-To: faf30fd2-2aa8-43e6-8159-9f1b75dcd339@n33g2000pri.googlegroups.com

On 4 mar, 17:16, Adam Beneschan <a...@irvine.com> wrote:
> Errors
> involving null references seem a lot more likely just to make programs
> die unexpectedly, than to allow arbitrary code execution or the like.
>
>                                  -- Adam

Indeed, as long as a null reference is a $0000000.... memory offset,
most of modern processor allow exception to be raised in such
circumstance (at least which special access right on the memory block
starting at this offset, or else with special descriptors).

It is likely to be detected as soon as possible.



  parent reply	other threads:[~2009-03-06  1:07 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-04 14:44 not null Georg Bauhaus
2009-03-04 14:56 ` Hyman Rosen
2009-03-04 15:22   ` Georg Bauhaus
2009-03-04 16:16     ` Adam Beneschan
2009-03-05 14:24       ` Georg Bauhaus
2009-03-05 16:07         ` Adam Beneschan
2009-03-06  1:07       ` Hibou57 (Yannick Duchêne) [this message]
2009-03-04 16:09   ` Adam Beneschan
2009-03-04 20:38     ` Dmitry A. Kazakov
2009-03-05  1:54       ` Adam Beneschan
2009-03-05  8:42         ` Dmitry A. Kazakov
2009-03-05  1:32     ` Brian Drummond
2009-03-05  1:47       ` Adam Beneschan
2009-03-05 11:32         ` Brian Drummond
2009-03-05 15:06           ` Dmitry A. Kazakov
2009-03-05 13:57         ` Georg Bauhaus
2009-03-05 19:53       ` Jack Mitchell
2009-03-05  8:49     ` Jacob Sparre Andersen
2009-03-05 16:10       ` Adam Beneschan
2009-03-05 17:20         ` Jacob Sparre Andersen
2009-03-06  1:04     ` Hibou57 (Yannick Duchêne)
2009-03-06 12:01     ` Harald Korneliussen
2009-03-06 12:43       ` Jacob Sparre Andersen
2009-03-06 13:05         ` Harald Korneliussen
2009-03-06 15:21       ` Dmitry A. Kazakov
2009-03-06 16:59         ` Harald Korneliussen
2009-03-06 17:48           ` Dmitry A. Kazakov
2009-03-06 20:05             ` Georg Bauhaus
2009-03-06 21:31               ` Dmitry A. Kazakov
2009-03-04 16:19   ` Robert A Duff
2009-03-04 20:39 ` Colin Paul Gloster
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