https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120976
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2025-07-06 Ever confirmed|0 |1 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to John David Anglin from comment #1) > I would have thought __float128 and long double should have been the same > on this target. They are, that's the problem. The formatter<__float128, _CharT> specialization should not be used on targets where __float128 and long double are the same.