Public Member Functions | |
| constexpr E | explicit (!convertible_to< E, Element >) box(E &&e) noexcept(std::is_nothrow_constructible< Element, E >::value) |
| constexpr Element && | get () &&noexcept |
| constexpr Element & | get () &noexcept |
| constexpr Element const && | get () const &&noexcept |
| constexpr Element const & | get () const &noexcept |
| template<typename E > | |
| requires (!same_as< box, detail::decay_t< E >>) &&const ructible_from< Element | |