From: John Carr <jfc@MIT.EDU>
To: Alessandro Baretta <alex@baretta.com>
Cc: Ocaml <caml-list@inria.fr>
Subject: Re: [Caml-list] Runtime overflow and what to do
Date: Sat, 12 Oct 2002 12:13:32 -0400 [thread overview]
Message-ID: <200210121613.MAA27433@psi-phi.mit.edu> (raw)
In-Reply-To: Your message of "Fri, 11 Oct 2002 12:16:13 +0200." <3DA6A4ED.5050700@baretta.com>
> If your problem is only the factorial function, then you can
> calculate statically (i.e. at source-code writing time) the
> value of the maximum integer whose factorial will fit in
> O'Caml's representation of integers, and test against that,
> once and for all, before entering the recursive calculation.
OCaml supports 32 and 64 bit integers. Is it possible to detect at
compile time the size of the maximum integer?
In the case of factorial, you could almost as easily optimize the
function to a table lookup.
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next prev parent reply other threads:[~2002-10-12 16:13 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-10 15:01 Scott J,
2002-10-10 15:07 ` Maxence Guesdon
2002-10-10 15:11 ` Maxence Guesdon
2002-10-10 15:21 ` Luc Maranget
2002-10-10 18:13 ` Sven LUTHER
2002-10-10 18:57 ` Xavier Leroy
2002-10-10 22:17 ` Scott J,
2002-10-11 8:00 ` Sven LUTHER
2002-10-11 10:16 ` Alessandro Baretta
2002-10-12 16:13 ` John Carr [this message]
2002-10-12 16:58 ` Sven LUTHER
2002-10-12 17:12 ` John Prevost
2002-10-13 9:31 ` Xavier Leroy
2002-10-13 9:52 ` Sven LUTHER
2002-10-13 9:57 ` Xavier Leroy
2002-10-13 10:15 ` Sven LUTHER
2002-10-13 13:25 ` John Carr
2002-10-13 9:28 ` Xavier Leroy
2002-10-14 0:56 ` Chris Hecker
2002-10-14 9:46 ` Jacques Garrigue
2002-10-14 11:02 ` Scott J,
2002-10-14 14:05 ` Tim Freeman
2002-10-14 15:32 ` Stefano Zacchiroli
2002-10-14 16:12 ` Alain Frisch
2002-10-14 16:49 ` [Caml-list] new ocaml switches (was Re: Runtime overflow and what to do) Chris Hecker
2002-10-13 9:25 ` [Caml-list] Runtime overflow and what to do Xavier Leroy
2002-10-13 10:04 ` Daniel de Rauglaudre
2002-10-13 10:29 ` Pierre Weis
2002-10-13 10:47 ` Daniel de Rauglaudre
2002-10-13 12:38 ` Pierre Weis
2002-10-13 16:14 ` Xavier Leroy
2002-10-13 17:06 ` Michel Quercia
2002-10-15 19:15 ` Pierre Weis
2002-10-15 19:25 ` Xavier Leroy
2002-10-16 8:24 ` Pierre Weis
2002-10-13 10:19 ` Pierre Weis
2002-10-11 8:02 ` Sven LUTHER
2002-10-11 6:42 ` Florian Hars
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