https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91000
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- This would be more appropriate on the gcc-help mailing list, as you're asking a question not reporting a bug. The behaviour is as intended, for all -std versions. The standard was changed to remove this feature and no other compilers implemented it anyway.