[Bug c++/118392] "-w" fails to fully inhibit "'void a::b()' has not been declared within a" warning

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118392

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 60087
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60087&action=edit
testcase

Next time please attach or paste inline the testcase.

Note attaching has a way to paste into a field instead of needing to attach via
a file.