wmemset
extern wchar_t *wmemset(wchar_t *, wchar_t, size_t);
using std::wmemset;
(void) wmemset((wchar_t *)*bufptr, ps, len);
(void) wmemset((wchar_t *)*bufptr, ps, n);
(void) wmemset(buf, L'-', ARRAY_SIZE(buf));