Re: page_launder() bug

H. Peter Anvin (hpa@zytor.com)
7 May 2001 06:53:44 -0700

Followup to: <Pine.LNX.4.33.0105070823060.24073-100000@svea.tellus>
By author: Tobias Ringstrom <tori@tellus.mine.nu>
In newsgroup: linux.dev.kernel
>
> On Sun, 6 May 2001, David S. Miller wrote:
> > It is the most straightforward way to make a '1' or '0'
> > integer from the NULL state of a pointer.
>
> But is it really specified in the C "standards" to be exctly zero or one,
> and not zero and non-zero?
>

Yes it is.

>
> IMHO, the ?: construct is way more readable and reliable.
>

In C99 one can write (bool)foo which is more readable than either,
especially since that is really what one is trying to do.

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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