From: "Yaron M. Minsky" <yminsky@cs.cornell.edu>
To: Caml List <caml-list@inria.fr>
Subject: Re: [Caml-list] Weird behavior with nan's and min/max
Date: 17 Oct 2003 19:55:43 -0400 [thread overview]
Message-ID: <1066434942.2933.70.camel@dragonfly.localdomain> (raw)
In-Reply-To: <1066402553.4570.65.camel@pelican>
On Fri, 2003-10-17 at 10:55, skaller wrote:
> On Thu, 2003-10-16 at 23:16, Xavier Leroy wrote:
>
> > 1- Fix polymorphic equality so that it behaves like IEEE equality on floats,
>
> > 2- As J M Skaller proposed, change the behavior of polymorphic
> > equality
>
> Doesn't the polymorphic comparison have to be a total order?
This kind of wigs me out too. For example, do the set and map data
structures depend on this total order property? What happens when I
stick in a data structure which contains some floats somewhere in it,
and some of those floats are nan's? Does the data structure continue to
work at all? It totally wigs me out.
I wish there was some sensible way around it. Probably the thing I
would like best is for calculations that produce nans to throw
exceptions. But from what I've heard so far, this doesn't appear to be
possible. Oh well.
y
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next prev parent reply other threads:[~2003-10-17 23:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-14 14:37 Yaron Minsky
2003-10-14 14:56 ` Yaron Minsky
2003-10-14 20:52 ` Yaron Minsky
2003-10-14 23:43 ` skaller
2003-10-16 17:29 ` Hendrik Tews
2003-10-16 13:16 ` Xavier Leroy
2003-10-16 14:01 ` Yaron Minsky
2003-10-17 9:26 ` [Caml-list] Test nan (was: Weird behavior with nan's and min/max) Christophe TROESTLER
2003-10-16 21:40 ` [Caml-list] Weird behavior with nan's and min/max Yaron Minsky
2003-10-16 21:50 ` Yaron Minsky
2003-10-16 22:52 ` Damien Doligez
2003-10-17 14:55 ` skaller
2003-10-17 15:14 ` Floating point exceptions (Was Re: [Caml-list] Weird behavior with nan's and min/max) Yaron Minsky
2003-10-17 23:55 ` Yaron M. Minsky [this message]
2003-10-20 13:29 ` [Caml-list] Weird behavior with nan's and min/max Xavier Leroy
2003-10-20 13:43 ` Yaron Minsky
2003-10-20 14:24 ` Xavier Leroy
2003-10-16 23:55 ` [Caml-list] " Jed Davis
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