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Re: Add a __nowarn__ keyword
On Thu, 9 Aug 2007, Mark Mitchell wrote:
> DJ Delorie wrote:
>
> > If we can solve a subset of the attachment problem, let's use the
> > push/pop technique I described. It sets us up for all the things
> > we'll need if/when we solve the general attachment problem.
>
> I think we should add the push/pop, and then accept that it's not
> perfect yet. It's still better than nothing, and it would probably work
> well for many front-end warnings, which is where most warnings come from.
> Mark Mitchell
Based on the above, and on Ian's comments regarding warnings from the
middle-end, I think we're going to extend the pragma interface rather than
accept __nowarn__. In this case I think DJ or someone familiar with that
code is better suited to implement the push/pop mechiansim than I.
I made a good-faith effort to provide a way for users to "elegantly" work
around -Wcast-qual warnings as Mark requested. Since we're not going to
use it and the existing mechanism doesn't work yet, what I'd like to do is
install my CONST_CAST patch using the union. When the pragma interface is
suitably updated, I volunteer to update the definition of CONST_CAST in
system.h to take advantage of it. Meanwhile I can finish the
constification stuff and get GCC bootstrapping with -Wcast-qual enabled.
Mark - okay to install CONST_CAST using a union?
http://gcc.gnu.org/ml/gcc-patches/2007-07/msg01993.html
Thanks,
--Kaveh
--
Kaveh R. Ghazi ghazi@caip.rutgers.edu