http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54194
--- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-08-07 19:35:45 UTC --- Use warning_at and pass down the correct location of the operator if possible, otherwise input_location? Of course, it would be nice to have ranges but I have given up on that.