[Bug c++/57241] -Wmultichar warnings despite a #pragma diagnostic ignored -Wmultichar directive

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57241

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #4)
> 
> Doesn't CPP diagnostics pass through the pragma classify code in
> diagnostic.c even when tokenizing ahead of time? If so, I don't understand
> why the warning is not suppressed. I don't have time to investigate it
> myself, but I don't see why that would be the problem here.

So answering to myself: No, it doesn't (see PR53431). I think it must.

This affects all the controllable warnings from CPP when using g++.

*** This bug has been marked as a duplicate of bug 53431 ***