https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69550
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-01-29 Ever confirmed|0 |1 --- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> --- So if the intention is for the C++ front-end to match the C front-end then this should be accepted (and there's no need to allow the original example even with -fpermissive).