fgetws
extern wchar_t *fgetws(wchar_t *dest, int destLength, FILE *stream);
extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
ret = fgetws(wcs, WIDE_STR_LEN, fp);
ret = fgetws(wcs, WIDE_STR_LEN, fp);
ret = fgetws(wcs, WIDE_STR_LEN, fp);