/sys$common/syshlp/helplib.hlb CC, Run-time functions, btowc  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Converts one-byte multibyte character to a wide character in the
  initial shift state.

  Syntax:

        #include <wchar.h>

        wint_t btowc (int c);