Re: [GD-General] ieee754 -0.0f?

[Ash H. <hen...@gm...>]

Hi Andras,

I suspect you've got "Fast" floating point model selected in VS project
options (check in C++->Code Generation I think).
Running your code here with Strict or Precise gives:
-0.000000 =3D 80000000
but it falls down how you describe (00000000), with Fast selected.

(Turion 64 MSVC8 here).

Cheers.

-- Ash.

On 2/1/06, Andras Balogh <and...@gm...> wrote:
>
> > They are different, on an IEEE compliant system.
>
> Yeah, I know, that's why I'm surprised! :)
>
> > -0.0 =3D 0xbf800000
> > +0.0 =3D 0x3f800000
>
> These are -1.0f and +1.0f, but yeah, I've got the point.
>
> > You didn't mention the language or how you're generating those values.
> > Using VC6 on a Pentium-M by setting global floats I get the correct
> > and expected values.
>
> VS7.1 running on Athlon64, see source in previous post.
>
>
> thanks,
>
>
>
> Andras
>
>
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