From: Florian Hars <florian@hars.de>
To: "Scott J," <jscott@planetinternet.be>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Runtime overflow and what to do
Date: Fri, 11 Oct 2002 08:42:21 +0200 [thread overview]
Message-ID: <3DA672CD.2020301@hars.de> (raw)
In-Reply-To: <00bd01c2706d$e7cd68e0$0100a8c0@janxp>
Scott J, wrote:
> Because an integer number is represented by a fixed number of bytes I
> will get a runtime overflow if n is chosen too large.
You have to check explicitly:
# exception Overflow;;
exception Overflow
# let fact n =
let rec fact_r acc n =
if n = 1 then acc
else if max_int / acc > (n-1) then fact_r (acc * n) (n - 1)
else raise Overflow
in
fact_r 1 n;;
val fact : int -> int = <fun>
# fact 12;;
- : int = 479001600
# fact 13;;
Exception: Overflow.
Yours, Florian
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
prev parent reply other threads:[~2002-10-11 6:42 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
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 [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3DA672CD.2020301@hars.de \
--to=florian@hars.de \
--cc=caml-list@inria.fr \
--cc=jscott@planetinternet.be \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).