wmemset
wchar_t *wmemset(wchar_t *, wchar_t, size_t);
wmemset(buf + ms->len + 1, 0, newsize - ms->len);
sc->sc_memset = wmemset;
static void *wmemset(void *, int, size_t);
sc->sc_memset = wmemset;
static void *wmemset(void *, int, size_t);