From: Guillaume Yziquel <guillaume.yziquel@citycable.ch>
To: Nicolas Ojeda Bar <nojb@math.harvard.edu>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] reference cells
Date: Mon, 31 Jan 2011 17:46:31 +0100 [thread overview]
Message-ID: <20110131164630.GN18069@localhost> (raw)
In-Reply-To: <476C4EB3-59D2-4756-927C-C1697E7AE4D8@math.harvard.edu>
Le Monday 31 Jan 2011 à 11:29:01 (-0500), Nicolas Ojeda Bar a écrit :
> Hello,
Hi.
> I am translating an imperative language into Ocaml. Right now I am
> translating mutable variables into ref cells. Will they be optimized
> when I compile the corresponding Ocaml program? Or will they be heap
> allocated? If this is the case, I will have to translate my language
> into some sort of SSA form before, and I would like to avoid that.
>
Heap allocated. Indeed:
> yziquel@seldon:~$ ocaml
> Objective Caml version 3.12.0
>
> # let x = ref 10;;
> val x : int ref = {contents = 10}
> # Obj.tag (Obj.repr x);;
> - : int = 0
> # Obj.size (Obj.repr x);;
> - : int = 1
> # (Obj.magic (Obj.field (Obj.repr x) 0) : int);;
> - : int = 10
> #
--
Guillaume Yziquel
next prev parent reply other threads:[~2011-01-31 16:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-31 16:29 Nicolas Ojeda Bar
2011-01-31 16:36 ` Michael Ekstrand
2011-01-31 16:46 ` Guillaume Yziquel [this message]
2011-02-04 11:49 ` David Baelde
2011-02-04 12:30 ` Guillaume Yziquel
2011-01-31 18:12 ` Alain Frisch
2011-02-02 19:38 ` Jon Harrop
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