From: Adam Beneschan <adam@irvine.com>
Subject: Re: Legit Warnings or not
Date: Thu, 21 Jul 2011 13:12:00 -0700 (PDT)
Date: 2011-07-21T13:12:00-07:00 [thread overview]
Message-ID: <b760b2c4-b774-43b6-b29e-4882470be1f4@a2g2000prf.googlegroups.com> (raw)
In-Reply-To: wcc4o2fbpzs.fsf@shell01.TheWorld.com
On Jul 21, 8:41 am, Robert A Duff <bobd...@shell01.TheWorld.com>
wrote:
> Adam Beneschan <a...@irvine.com> writes:
> > You don't have to allocate a whole new Warned_Person, just a new Name.
>
> Right. If you allocate a whole new Warned_Person, you can get
> dangling pointers and dangling renamings. If I remember correctly,
> the rules prevent renaming or 'Access of parts of Name (assuming
> it has aliased parts).
3.10.2(26), 8.5.1(5). However, I think the language now says that
'Access and rename of a component are OK if the discriminated object
is known to be constrained; that means that the implementation has to
be smart enough to know that it can't allocate a new Name in that case
(when the entire record is assigned) but keep the same pointer and
just copy over the data that it points to.
-- Adam
next prev parent reply other threads:[~2011-07-21 20:12 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-20 22:30 Legit Warnings or not Anh Vo
2011-07-20 23:16 ` Robert A Duff
2011-07-21 18:43 ` Anh Vo
2011-07-23 0:26 ` Randy Brukardt
2011-07-23 14:26 ` Robert A Duff
2011-07-21 2:37 ` Jeffrey Carter
2011-07-21 9:50 ` Brian Drummond
2011-07-21 14:39 ` Dmitry A. Kazakov
2011-07-23 0:36 ` Randy Brukardt
2011-07-23 9:03 ` Dmitry A. Kazakov
2011-07-23 11:07 ` Simon Wright
2011-07-23 11:21 ` Dmitry A. Kazakov
2011-07-26 21:25 ` Randy Brukardt
2011-07-27 7:45 ` Dmitry A. Kazakov
2011-07-28 0:37 ` Randy Brukardt
2011-07-28 9:22 ` Dmitry A. Kazakov
2011-07-28 14:22 ` Robert A Duff
2011-07-28 14:41 ` Dmitry A. Kazakov
2011-07-28 15:10 ` Robert A Duff
2011-07-28 17:05 ` Dmitry A. Kazakov
2011-07-28 23:32 ` Randy Brukardt
2011-07-28 23:48 ` Randy Brukardt
2011-07-29 6:57 ` Simon Wright
2011-07-29 18:56 ` Jeffrey Carter
2011-07-30 0:13 ` Randy Brukardt
2011-07-29 7:41 ` Dmitry A. Kazakov
2011-07-30 0:17 ` Randy Brukardt
2011-07-30 8:27 ` Dmitry A. Kazakov
2011-08-01 22:12 ` Randy Brukardt
2011-08-02 10:01 ` Dmitry A. Kazakov
2011-08-02 21:30 ` Randy Brukardt
2011-08-03 9:01 ` Dmitry A. Kazakov
2011-08-03 20:35 ` Randy Brukardt
2011-08-04 8:11 ` Dmitry A. Kazakov
2011-08-05 23:57 ` Randy Brukardt
2011-08-06 8:23 ` Dmitry A. Kazakov
2011-08-08 21:30 ` Randy Brukardt
2011-07-23 14:32 ` Robert A Duff
2011-07-26 21:32 ` Randy Brukardt
2011-07-21 15:28 ` Adam Beneschan
2011-07-21 15:41 ` Robert A Duff
2011-07-21 20:12 ` Adam Beneschan [this message]
2011-07-23 0:31 ` Randy Brukardt
2011-07-21 17:40 ` Jeffrey Carter
2011-07-21 21:30 ` Brian Drummond
2011-07-21 21:54 ` Adam Beneschan
2011-07-22 10:16 ` Brian Drummond
2011-07-22 14:54 ` Adam Beneschan
2011-07-23 0:46 ` Randy Brukardt
2011-07-23 0:42 ` Randy Brukardt
2011-07-23 9:20 ` Niklas Holsti
2011-08-04 5:56 ` David Thompson
2011-07-23 9:24 ` Dmitry A. Kazakov
2011-07-23 12:36 ` Brian Drummond
2011-07-21 15:13 ` Robert A Duff
2011-07-23 0:52 ` Randy Brukardt
2011-07-23 14:48 ` Robert A Duff
2011-07-21 14:17 ` anon
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