https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93983
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Paco Arjonilla from comment #4) > There is no reason why an extra constructor would affect the semiregularity > of a type. That's not true. A private or deleted constructor that is a better match for some arguments can affect it.
