https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85886
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-05-23 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- They were only added in C++17 and I was waiting for the GCC 8 release before adding them.