https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89722
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2019-03-15 Ever confirmed|0 |1 --- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Xavier from comment #9) > We are compiling with -std=gnu++98 so decltype is not available there. But __decltype is. > And the "+ 0" trick does not seem to work correctly. It will cause integer promotion for types with smaller rank than int. > Do you have a solution that works with -std=gnu++98 ? __decltype But I think we want to suppress the warning for (__typeof__(expr))x (we do still want to strip the qualifiers from the result type, just not warn).