From: "Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl>
To: caml-list@inria.fr
Subject: Re: [Caml-list] ambitious proposal: polymorphic arithmetics
Date: Wed, 06 Apr 2005 23:53:59 +0200 [thread overview]
Message-ID: <87u0mjvafc.fsf@qrnik.zagroda> (raw)
In-Reply-To: <20050406.163144.51837136.eijiro_sumii@anet.ne.jp> (Eijiro Sumii's message of "Wed, 06 Apr 2005 16:31:44 -0400 (EDT)")
Eijiro Sumii <eijiro_sumii@anet.ne.jp> writes:
> # let d = (Obj.magic (Obj.magic B + Obj.magic B) : t) ;;
> val d : t = <unknown constructor>
> # (function A -> 78 | B -> 90) d ;;
> - : int = 90
> #
> ----------------------------------------------------------------------
>
> So, it indeed leads to "unknown" values and behaviors, but doesn't
> seem to break memory safety (in this case, at least).
# type t = A | B | C;;
type t = A | B | C
# match (Obj.magic (Obj.magic C + Obj.magic C)) with A -> 0 | B -> 1 | C -> 2;;
zsh: segmentation fault ocaml
--
__("< Marcin Kowalczyk
\__/ qrczak@knm.org.pl
^^ http://qrnik.knm.org.pl/~qrczak/
next prev parent reply other threads:[~2005-04-06 21:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-06 15:15 Eijiro Sumii
2005-04-06 15:51 ` [Caml-list] " Sébastien Hinderer
2005-04-06 15:56 ` Richard Jones
2005-04-06 16:43 ` Dmitry Lomov
2005-04-06 18:59 ` Richard Jones
2005-04-06 19:19 ` Jacques Carette
2005-04-07 0:01 ` Ethan Aubin
2005-04-06 16:39 ` [Caml-list] " William Lovas
2005-04-06 16:59 ` Andreas Rossberg
2005-04-06 18:50 ` Eijiro Sumii
2005-04-06 19:33 ` Eijiro Sumii
2005-04-07 0:13 ` William Lovas
2005-04-07 1:58 ` Jacques Garrigue
2005-04-06 17:00 ` Christophe TROESTLER
2005-04-06 19:20 ` Eijiro Sumii
2005-04-07 14:00 ` Christophe TROESTLER
2005-04-06 17:23 ` Marcin 'Qrczak' Kowalczyk
2005-04-06 18:01 ` padiolea
2005-04-06 19:14 ` Eijiro Sumii
2005-04-06 20:31 ` Eijiro Sumii
2005-04-06 21:53 ` Marcin 'Qrczak' Kowalczyk [this message]
2005-04-06 22:38 ` Eijiro Sumii
2005-04-06 19:23 ` Richard Jones
2005-04-09 2:58 ` Jon Harrop
2005-04-09 3:16 ` Eijiro Sumii
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