https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103593
Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|NEW |RESOLVED --- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> --- So I suppose CWG2237 means we're correct to reject this testcase in C++20 mode. See also http://eel.is/c++draft/diff.cpp17.class#2