On Sat, 10 Oct 2020 at 13:52, Jonathan Wakely <jwak...@redhat.com> wrote: > index_sequence uses size_t not unsigned long. This parameter pack > needs to be size_t... _Idxs, and the NTTP for __check_visitor_result > should be size_t _Idx.
Fixed in https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=02cbd79e4728319e0887ad7783297853b527bb13 after approval-over-irc.
