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[Caml-list] Int overflow in literals
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Date: -- (:)
From: Frederic van der Plancke <fvdp@d...>
Subject: Re: [Caml-list] Int overflow in literals


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

That was not my problem. My problem was to be able to read a list of integers from a file and be warned in case of overflow. And to be able to rely on int_of_string for that purpose. I got hit... of course now I know, but other innocent programmers may get hit in the future as well. (Not to speak of the not-so-innocent people who wrote this nice OCaml compiler ;-)

Frédéric.

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