http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60114
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |manu at gcc dot gnu.org
--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Chengnian Sun from comment #2)
> It seems -pedantic and -Woverflow are different. When I issue
> $ gcc-trunk -c -Woverflow s.c
> then there is no overflow warning. (There is indeed no overflow.)
>
> But when I use
> $ gcc-trunk -c -pedantic s.c
> the warning says that it is emitted from -Woverflow. Is this expected?
There are some warnings that are only enabled if -Wpedantic is given in
combination with other flag. Unfortunately, there is currently no way to say
that a warning is enabled by the combination of two flags, short of creating a
new flag -Wpedantic-overflow, which is enabled by the combination of -Wpedantic
&& -Woverflow. I think it could be a nice workaround
