virtual protected member function
        char do_narrow (charT c, char dfault) const;
const charT* do_narrow (const charT* low, const charT* high, char dfault, char* to) const;

Narrow character(s) [virtual]

Virtual protected member function in charge of transforming wide characters to their char equivalents, as described in public member function narrow (see ctype::narrow for details).

Polymorphic derived classes can redefine the behavior of this function.

See also