https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88128
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Viktor Ostashevskyi from comment #3) > Was this bug fixed for implenting it? No. > Is it possible to make std::span<const T> from std::vector<T>? Yes, that works with current trunk.