From: Remi VANICAT <vanicat@labri.u-bordeaux.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Integer to floating point conversion errors
Date: 11 Nov 2001 17:34:03 +0100 [thread overview]
Message-ID: <87zo5ts1vo.dlv@wanadoo.fr> (raw)
In-Reply-To: <Pine.GSO.4.32.0111111027220.7214-100000@config.mail.Virginia.EDU>
Post Office!~/sentmail <fjr6b@cms.mail.virginia.edu> writes:
> On Sun, 11 Nov 2001, Berke Durak wrote:
>
> Pardon me, I wasn't clear. Since incr and mult are assumed to be
> positive, seed should always be positive. Therefore a mod of C by a
> positive number should always be positive. The problems arise like the
> following:
>
> # seeded#raw;;
> - : float = -0.011235290207
> # seeded#getseed;;
> - : int = 12063801
> # float ( seeded#getseed );;
> - : float = 12063801
> # float ( seeded#getseed ) /. float( 1073741824 );;
> - : float = -0.011235290207
> # float (1073741824);;
> - : float = -1073741824
# max_int;;
- : int = 1073741823
so your int is bigger than max_int, and caml silently transform it in
-1073741824 (there should be a warning)
float ( seeded#getseed ) /. 1073741824.0
should work.
--
Rémi Vanicat
vanicat@labri.u-bordeaux.fr
http://dept-info.labri.u-bordeaux.fr/~vanicat
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prev parent reply other threads:[~2001-11-11 16:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-09 23:39 Post Office!~/sentmail
2001-11-11 13:33 ` Berke Durak
2001-11-11 15:35 ` Post Office!~/sentmail
2001-11-11 16:34 ` Remi VANICAT [this message]
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