std::basic_ios::widen(3)

NAME
std::basic_ios::widen - std::basic_ios::widen

Synopsis
   char_type widen( char c ) const;
   Converts a character c to its equivalent in the current locale. The result is
   converted from char to character type used within the stream if needed.
   Effectively calls std::use_facet< std::ctype<char_type> >(getloc()).widen(c).

Parameters
   c - character to convert

Return value
   Character converted to char_type

See also
   narrow narrows characters
             (public member function)
   do_widen converts a character or characters from char to CharT
   [virtual] (virtual protected member function of std::ctype<CharT>)
   btowc widens a single-byte narrow character to wide character, if possible
             (function)