On Wed, Mar 03, 2004 at 03:12:10AM +0000, Christos Zoulas wrote:
> In article <20040303024303.GB17009@che.ojctech.com>,
> David Young <dyoung@pobox.com> wrote:
> >On Tue, Mar 02, 2004 at 07:57:55PM -0600, David Young wrote:
> >> Are all the ports using the new gcc? If I may, I would like to use C99's
> >> variadic macros to implement two-argument KASSERT. For example,
> >
> >Come to think of it, implementing KASSERT w/ variadic arguments is not
> >compatible w/ FreeBSD, so I don't think that I will do that. The
> >general question still remains: are variadic macros permissible in
> >the kernel?
> 
> Lets change the question lineup:

Ah! Thank you for breaking it down.

> 1. What do varyadic macros buy you in most cases except better appearance
>    (I.e. they eliminate the need for the double parenthesis)?

I believe that variadic macros buy us compatibility with latest
802.11/ath(4) sources that are (or will be) in FreeBSD.

> 2. Is this extension sanctioned by ansi, or will it be in the future?
> 3. Do we want to make it easier or more difficult to compile kernels with
>    a non-gcc compiler?

Warner answered these.

Dave
 
-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933