On Sun, 13 May 2018, Paul Smith wrote:
On Sun, 2018-05-13 at 15:53 -0400, Paul Smith wrote:
The first problem is that I have three instances (in a very large
codebase) where I'm seeing errors like this:
error: argument 1 value '18446744073709551615' exceeds maximum object
size 9223372036854775807 [-Werror=alloc-size-larger-than=]
...
I can disable this warning
Err... no I can't? Isn't there some way to keep -Wall but disable
-Walloc-size-larger-than? -Wno-alloc-size-larger-than is unrecognized
and -Walloc-size-larger-than=0 doesn't disable it...
??
It does seem harder to disable than it should be. File a PR?
In my opinion, just like -Wmaybe-uninitialized, it should not be in -Wall
but only -Wextra (except possibly when the statement post-dominates the
entry of a function that is not a clone, or some similar constraint that
avoids all the false positives due to optimization artifacts).
--
Marc Glisse
