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Re: Warnings/errors related to possibly clobbered variables


From: Stefan Monnier
Subject: Re: Warnings/errors related to possibly clobbered variables
Date: Tue, 13 Jan 2015 14:43:11 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

> Why not declare the offending variables 'volatile' and forget about
> all this stuff?

FWIW, `volatile' might not necessarily give us the behavior we
want/need.  IOW if the warning is legit, we should investigate and
decide exactly how to fix the problem (which might involve using
`volatile' or it might on the contrary involve making a copy of the
current value).

If the warning is not legit, then it's a problem in GCC and we shouldn't
do anything on our side other than report a bug.


        Stefan "-Werror is wrong"



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