https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91423
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |diagnostic --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- I think GCC tells you that deriving from std::array from a packed struct is going to cause trouble because std::array expects to be naturally aligned?