https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117410
--- Comment #3 from Artyom Kolpakov <ddvamp007 at gmail dot com> --- (In reply to Jonathan Wakely from comment #2) > But without the variadic arguments, the functions have equivalent function > parameter lists, so the constraints are checked. With the ellipsis, they do > not have equivalent function parameter lists, so the constraints are ignored. I could not find any mention in the standard of how exactly length of function parameter list is determined. It is unclear whether and how an ellipsis or a function parameter pack are included in this length ([dcl.fct#4]). It is also unclear which parameter list is mentioned in [temp.func.order#6.1]. Is this a new core Issue?
