https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114695
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2024-04-11 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed; EDG accepts it also in C++17 (and C++20) modes. Also note If I change slice_by_type to take Bar instead of the template argument, it works which makes it feel like for some reason GCC is not able to deduce the arguments properly.