protected virtual member function

std::codecvt::do_in

<locale>
result do_in ( stateT& state, 
  const externT* from, const externT* from_end, const externT*& from_next,
        internT* to, internT* to_limit, internT*& to_next ) const;
Translate in characters [virtual]
Virtual protected member function in charge of translating characters with a codecvt facet object, as described in public member function in (see codecvt::in for details).

Polymorphic derived classes can redefine the behavior of this function.

See also

codecvt::in
Translate in characters (public member function)

C++