From: Oleg Trott <oleg_trott@columbia.edu>
To: ijtrotts@ucdavis.edu, "Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl>
Cc: OCaml Mailing List <caml-list@inria.fr>
Subject: Re: [Caml-list] Int overflow in literals
Date: Thu, 30 Oct 2003 16:14:02 -0500 [thread overview]
Message-ID: <200310301614.02646.oleg_trott@columbia.edu> (raw)
In-Reply-To: <20031030200519.GA19324@ucdavis.edu>
On Thursday 30 October 2003 03:05 pm, Issac Trotts wrote:
> On Thu, Oct 30, 2003 at 02:53:32PM +0100, Marcin 'Qrczak' Kowalczyk wrote:
> > I understand that int overflow is not checked on arithmetic for
> > efficiency reasons, but IMHO it would be better if it was checked
> > at least in literals. When someone writes 10000000000, he certainly
> > does not mean -737418240.
>
> If you want to be sure that the number is correctly stored, you can use
> Int64:
>
> Int64.of_string "10000000000"
>
> Issac
Or, better yet, use Big_int:
Objective Caml version 3.06
# Int64.of_string "10000000000000000000";;
- : int64 = <int64 -8446744073709551616>
# #load "nums.cma";;
# Big_int.big_int_of_string "10000000000000000000";;
--
Oleg Trott <oleg_trott@columbia.edu>
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next prev parent reply other threads:[~2003-10-30 21:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-30 13:53 Marcin 'Qrczak' Kowalczyk
2003-10-30 17:37 ` Alex Baretta
2003-10-30 17:59 ` Frederic van der Plancke
2003-10-30 19:20 ` Oleg Trott
2003-10-30 19:40 ` Marcin 'Qrczak' Kowalczyk
2003-10-30 20:05 ` Issac Trotts
2003-10-30 21:14 ` Oleg Trott [this message]
2003-10-30 21:26 ` Kenneth Knowles
2003-10-31 0:18 ` Jacques Garrigue
2003-10-31 2:05 ` Kenneth Knowles
2003-11-02 15:05 ` skaller
2003-11-02 16:23 ` Brian Hurt
2003-11-02 16:39 ` Marcin 'Qrczak' Kowalczyk
2003-11-07 7:22 ` skaller
2003-10-30 21:36 ` Frederic van der Plancke
2003-10-30 23:27 ` Issac Trotts
2003-10-30 23:43 ` Oleg Trott
2003-10-31 16:42 ` Xavier Leroy
2003-10-31 17:39 ` Marcin 'Qrczak' Kowalczyk
2003-10-31 17:50 ` Oleg Trott
2003-11-02 15:23 ` skaller
2003-11-02 16:37 ` Marcin 'Qrczak' Kowalczyk
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