https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94082
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Deniz Bahadir from comment #1) > Reading P0202 (wg21.link/p0202) (which made it into C++20) it sounds as if > `__builtin_memcpy` should be usable from a `constexpr` context. Why? std::memcpy isn't usable in constant expressions. It might be useful if it could be used, but the fact it can't currently isn't a bug.
