From: Alain.Frisch@ens.fr
To: Mattias Waldau <mattias.waldau@abc.se>
Cc: "'David Monniaux'" <David.Monniaux@ens.fr>,
"'Liste CAML'" <caml-list@inria.fr>
Subject: RE: [Caml-list] troubling results from profiling: compare_val
Date: Wed, 26 Feb 2003 22:39:18 +0100 (MET) [thread overview]
Message-ID: <Pine.SOL.4.44.0302262234170.14903-100000@clipper.ens.fr> (raw)
In-Reply-To: <006f01c2ddc8$7faff1b0$0a00a8c0@gateway>
On Wed, 26 Feb 2003, Mattias Waldau wrote:
> If you know that you have numbers, in many cases you can use
> - (minus) as comparation operator. That speeds things up.
Beware of the modulo semantics of the arithmetic operator (-) !
# List.sort (fun x y -> x - y) [min_int;max_int];;
- : int list = [1073741823; -1073741824]
-- Alain
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prev parent reply other threads:[~2003-02-27 15:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-26 17:03 David Monniaux
2003-02-26 18:54 ` Mattias Waldau
2003-02-26 21:39 ` Alain.Frisch [this message]
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