protected virtual member function
const charT* do_scan_is (mask m, const charT* low, const charT* high) const;
Return first character in category [virtual]
Virtual protected member function in charge of returning the first character in [low,high)
that matches category m
, as described in public member function scan_is
Polymorphic derived classes can redefine the behavior of this function.
- Return first character in category (public member function)