During its operation, this function simply calls the virtual protected member codecvt::do_max_length, which is the member function in charge of performing the actions described above.
Return valueThe maximum length of one external character if translated to internal characters.
max_length for codecvt<char,char,mbstate_t>: 1 max_length for codecvt<wchar_t,char,mbstate_t>: 5
|codecvt::encoding||Return encoding width (public member function)|
|codecvt::length||Return length of translated sequence (public member function)|
|codecvt::do_max_length||Return max length of one character [virtual] (virtual protected member function)|