__b                67 lib/gnu/stdalign.in.h    template <class __t> struct __alignof_helper { char __a; __t __b; };
__b                68 lib/gnu/stdalign.in.h #   define _Alignof(type) offsetof (__alignof_helper<type>, __b)
__b                71 lib/gnu/stdalign.in.h #  define _Alignof(type) offsetof (struct { char __a; type __b; }, __b)