From: yoann padioleau <padator@wanadoo.fr>
To: Florian Weimer <fw@deneb.enyo.de>
Cc: Damien Bobillot <damien.bobillot@m4x.org>, caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Unsafe features
Date: Sat, 3 Sep 2005 16:35:26 +0200 [thread overview]
Message-ID: <A4717F1A-3688-4F25-B09B-0CB6938339D3@wanadoo.fr> (raw)
In-Reply-To: <87slwmjkdx.fsf@mid.deneb.enyo.de>
On 3 sept. 05, at 16:28, Florian Weimer wrote:
> * yoann padioleau:
>
>
>>> Apparently, it creates a bit-wise copy of a value and assigns it
>>> a new
>>> type.
>>>
>>
>> Are you sure ? I thought it was just a function to get rid temporary
>> of the typing system, a kind of cast operator.
>>
>
> It is, but how would you define such a operator?
obj.ml contains:
external magic: 'a -> 'b = "%identity"
So I guess there is no bit-wise copy involved.
>
>
>> But is is bad to use it, very bad, shame on you if you use it
>> (i just put this statement to be sure that xavier leroy will not
>> shout over me).
>>
>
> Yes, and my question was to avoid such unsafe language features.
>
I know :) It is just that I have the feeling that the ocaml team does
not like when someone talk
about Obj.magic, so I put a disclaimer.
>
next prev parent reply other threads:[~2005-09-03 14:42 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-02 12:02 Florian Weimer
2005-09-03 9:24 ` [Caml-list] " Damien Bobillot
2005-09-03 9:40 ` Florian Weimer
2005-09-03 11:19 ` Jon Harrop
2005-09-03 12:07 ` yoann padioleau
2005-09-03 14:28 ` Florian Weimer
2005-09-03 14:35 ` yoann padioleau [this message]
2005-09-03 14:47 ` Florian Weimer
2005-09-03 14:51 ` Florian Weimer
2005-09-03 14:55 ` yoann padioleau
2005-09-04 1:58 ` Jacques Garrigue
2005-09-03 9:29 ` Erik de Castro Lopo
2005-11-29 18:46 ` Integral solutions of rational linear equations Thomas Gazagnaire
2005-11-30 8:32 ` [Caml-list] " Sebastian Egner
2005-11-30 8:49 ` Christophe Raffalli
2005-11-30 9:06 ` Christophe Raffalli
2005-11-30 9:08 ` Christophe Raffalli
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