http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51628
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-12-20 12:25:13 UTC --- > You can. Just check what you get with that aligned(1) int typedef. Well, we're going in circles as this example precisely doesn't work. > Is it documented anywhere that you can't take the address of > an unaligned structure member (given the struct is packed) on > STRICT_ALIGNMENT targets (or, when it's a vector component even > on non-STRICT_ALIGNMENT targets)? Why does the C frontend not > warn for these cases (unconditionally?)? Good question, but for a C maintainer. The C front-end would have implemented something for a long time if it had cared about the issue, but apparently not. In Ada we do care since Ada 2005, so we have implemented the necessary support.
