https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69560
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- This is where C distinguishes C11 _Alignof (the minimum alignment the type is guaranteed to have in all contexts, so 4, see min_align_of_type) from GNU C __alignof (the normal alignment of the type, so 8). I don't know if a similar distinction is needed for C++; that depends on how the standard C++ alignof is specified.
