Re: wineport: Add support for ctz().

[Adam Martinson]

On 03/17/2011 02:04 PM, Alexander Kochetkov wrote:
> > For my purposes the 'return -1' path will never be taken, so it's not
> > needed.  I want to be able to do:
> >
> > while (bitmap)
> > {
> >     i = ctz(bitmap); /* get the LSB index */
> >     bitmap ^= 1<<  i; /* zero LSB */
> >
> > /* for each set bit i... */
> > }
> >
> > If there's a faster way to do this I'm all ears.
>
> while (bitmap)
> {
>      bitmap = (bitmap&  (bitmap - 1)); /* zero LSB */
>
> /* for each set bit i... */
> }
>
> You could try this solution to zero lsb.

Yes, that's another way to zero the LSB, but I need the index (i).