https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93191
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2020-02-11 Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Not quite sure if this is valid: clang++ (trunk) accepts (with -std=c++2a) void cat(const auto(&...s)[6]) { } using punk = char(*)[]; int main () { cat("Hello","world"); } but not void cat(const auto(&...s)[]) { } using punk = char(*)[]; int main () { cat("Hello","world"); }