From: "Elnatan Reisner" <elnatan@cs.umd.edu>
To: caml-list@yquem.inria.fr
Subject: Physical counterpart to Pervasives.compare?
Date: Tue, 28 Jul 2009 21:25:37 -0400 (EDT) [thread overview]
Message-ID: <1501.208.59.169.96.1248830737.squirrel@webmail.cs.umd.edu> (raw)
Is there something that can complete this analogy:
(=) is to (==) as Pervasives.compare is to ___?
That is, is there a polymorphic total ordering with respect to *physical*
entities, rather than to their structure?
I'm afraid of getting into trouble with Obj.magic, but what would this do:
let f (x:'a) (y:'a) = compare (Obj.magic x) (Obj.magic y)
? Or would annotations make any difference:
let f (x:'a) (y:'a) = compare (Obj.magic x : int) (Obj.magic y : int)
-Elnatan
next reply other threads:[~2009-07-29 1:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-29 1:25 Elnatan Reisner [this message]
2009-07-29 3:06 ` [Caml-list] " Edgar Friendly
2009-07-29 3:58 ` Edgar Friendly
2009-07-29 6:13 ` Alain Frisch
[not found] <20090826100004.0169CBC58@yquem.inria.fr>
2009-08-26 10:14 ` Pascal Cuoq
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