https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118968
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to qurong from comment #0) > The compiler gcc10.1 accepts this program. We aren't interested in bugs in GCC 10.1, it stopped being supported five years ago when GCC 10.2 was released, and all 10.x versions stopped being supported in 2023 when GCC 10.5 was released.