From: Igor Pechtchanski <pechtcha@cs.nyu.edu>
To: Jean-Christophe Filliatre <Jean-Christophe.Filliatre@lri.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Gripes with array
Date: Thu, 9 Sep 2004 08:15:12 -0400 (EDT) [thread overview]
Message-ID: <Pine.GSO.4.61.0409090813030.671@slinky.cs.nyu.edu> (raw)
In-Reply-To: <16704.12730.731980.380265@gargle.gargle.HOWL>
On Thu, 9 Sep 2004, Jean-Christophe Filliatre wrote:
> Damien Doligez writes:
> >
> > > But I must agree with you: this is definitely too small and we could
> > > imagine that, when the tag says a block is an array, the size is
> > > stored within the first (or the last) field instead.
> >
> > The last, really?
>
> How stupid I am! I was thinking of not adding an extra addition to the
> array access, keeping the first array element at field 0 but it is of
> course ridiculous.
I believe the usual solution for this is to store the array size at
negative offset from the array header, but that changes the heap layout
slightly, and affects the GC logic, among other things...
Igor
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next prev parent reply other threads:[~2004-09-09 12:15 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-09 2:10 Jon Harrop
2004-09-09 5:08 ` Ville-Pertti Keinonen
2004-09-09 7:17 ` Jean-Christophe Filliatre
2004-09-09 8:23 ` Richard Jones
2004-09-09 9:08 ` Olivier Andrieu
2004-09-09 12:08 ` Basile Starynkevitch [local]
2004-09-09 12:31 ` Damien Doligez
2004-09-09 10:42 ` Gerd Stolpmann
2004-09-09 9:37 ` Damien Doligez
2004-09-09 10:34 ` Jean-Christophe Filliatre
2004-09-09 12:15 ` Igor Pechtchanski [this message]
2004-09-09 13:01 ` Brian Hurt
2004-09-09 20:08 ` [Caml-list] 32-bit is sticking around Brandon J. Van Every
2004-09-09 21:04 ` Jon Harrop
2004-09-11 15:30 ` Lars Nilsson
2004-09-11 16:24 ` [off topic] " David MENTRE
2004-09-11 17:52 ` Lars Nilsson
[not found] ` <200409111656.11952.jon@jdh30.plus.com>
2004-09-11 17:47 ` Lars Nilsson
2004-09-09 16:58 ` [Caml-list] Gripes with array Jon Harrop
2004-09-10 5:56 ` Array.init (was [Caml-list] Gripes with array) Christophe Raffalli
2004-09-10 8:53 ` Richard Jones
2004-09-10 14:50 ` Damien Doligez
2004-09-13 7:02 ` Christophe Raffalli
2004-09-10 13:45 ` [Caml-list] Gripes with array Damien Doligez
2004-09-11 1:43 ` skaller
2004-09-11 3:16 ` skaller
2004-09-11 14:36 ` Jon Harrop
2004-09-11 20:53 ` Damien Doligez
2004-09-12 15:33 ` Jon Harrop
2004-09-12 16:07 ` Basile Starynkevitch [local]
2004-09-10 23:48 ` brogoff
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