Returns a reference to the contained value. Synopses Declared in <beman/optional/optional.hpp> Returns a reference to the contained value. constexpr T& operator*() &; » more... Returns a reference to the contained value. constexpr T const& operator*() const &; » more... Returns a reference to the contained value. constexpr T&& operator*() &&; » more... Return Value T& const T& T&&