https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99926
--- Comment #2 from Matt Hurd <matthurd at acm dot org> --- FWIW, MSVC claims to have fixed their bug in version 16.10 Preview 2, leaving just gcc generating incorrect code. https://developercommunity.visualstudio.com/t/parameter-packs-and-variadic-arguments-clang-gcc-a/1390988 --Matt.
