Re: Weird embedded literal number/compiler issue
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- Subject: Re: Weird embedded literal number/compiler issue
- From: David Kastrup <dak@...>
- Date: 2008年8月10日 15:13:13 +0200
"Mike Crowe" <drmikecrowe@gmail.com> writes:
> Hi folks,
>
> This has been driving me nuts, but I just drilled down to find what was wrong.
>
> I'm using lua on an embedded ARM device, and everything worked great until I
> added a 3rd party library which didn't work. I should point out that all the
> development on the PC worked fine, and it took a lot of work to find this:
>
> The problem seems to be with using literal numbers. If I do:
>
> i = 1
>
> and then log what I is, I get:
>
> = 5.2998088236266e-315
>
> Has anybody ever seen anything like this? I'm sure it's something in
> how we included lua in the system, somehow, would appreciate any
> feedback.
That's likely what happens if you interpret a memory location containing
a native integer (which Lua does not have) as a floating point number
(the default number type for Lua).
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum