RootCauseunvalidated
So when C++23 speaks of the C standard, it speaks of C17. — If you peek into the C++23 standard chapter 2 "normative references". Tension: C23 the header is indeed empty. Outcome: Which has the same implementation of stdalign.h and similar headers as C11 had.
2ebda55c-d04d-4e3f-9aaa-8867c9eb13ae
So when C++23 speaks of the C standard, it speaks of C17. — If you peek into the C++23 standard chapter 2 "normative references". Tension: C23 the header is indeed empty. Outcome: Which has the same implementation of stdalign.h and similar headers as C11 had.