https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104635
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- If you'd bothered to read the link I've provided (actually all 3 parts of it), maybe you'd understand. Anyway, bugzilla is for reporting bugs (there is none on the compiler side), not for teaching users how to program.