https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96593
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org Status|UNCONFIRMED |NEW Last reconfirmed| |2020-08-18 Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Like you say, this might be mandatory in C++23: https://wg21.link/p1697r0. So confirmed.