Header <string_view> implementation status Reference Implementation : Cannot implement with language itself. Need compiler support. Used C++ N STL : Partially implemented with C++ N : Fully implemented with C++ N : Not yet implemented Features Standard Implemented in Includes <compare> Classes basic_string_view ss::hash<ss::string_view> ss::hash<ss::wstring_view> ss::hash<ss::u8string_view> ss::hash<ss::u16string_view> ss::hash<ss::u32string_view> Forward declarations hash Functions operator== operator!= operator< operator> operator<= operator>= operator<=> operator<< swap Range access begin cbegin end cend rbegin crbegin rend crend size ssize empty data Literals operator""sv