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

  Locates the first occurence of a wide character sequence specified
  in one string to wide character sequence in another string.

  Syntax:

        #include <wchar.h>

        wchar_t *wcsstr (const wchar_t *s1, const wchar_t *s2);