From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Legit Warnings or not
Date: Fri, 22 Jul 2011 19:52:13 -0500
Date: 2011-07-22T19:52:13-05:00 [thread overview]
Message-ID: <j0d5vu$rfn$1@munin.nbi.dk> (raw)
In-Reply-To: wcc8vrrbrb6.fsf@shell01.TheWorld.com
"Robert A Duff" <bobduff@shell01.TheWorld.com> wrote in message
news:wcc8vrrbrb6.fsf@shell01.TheWorld.com...
...
> Implicit heap allocation could be a good feature in a different
> language, but then I'd want that language to allow:
>
> type Tree is tagged
> record
> Left, Right : Tree'Class; -- doubly illegal!
> end record;
Yes, of course Ada should support this, too. ;-) As noted, it's not
particularly hard.
Note that these sorts of allocations aren't really the same as heap
allocations -- their lifetime is similar to that of the secondary stack.
Janus/Ada does allocate them on the heap (with them being deallocated when
scope goes away), but I've been thinking about ways to reduce/eliminate
that. One obvious idea is to allocate the initial sizes off of the secondary
stack, and only allocate from the heap if they get bigger via assignment in
a different master (which is fairly rare). Not sure if that would save
enough to be worth the extra complication.
Randy.
next prev parent reply other threads:[~2011-07-23 0:52 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
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 [this message]
2011-07-23 14:48 ` Robert A Duff
2011-07-21 14:17 ` anon
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