CHECK_FILE (stdout, WEOF); return _IO_putwc_unlocked (wc, stdout);
CHECK_FILE (_IO_stdout, WEOF); return _IO_putwc_unlocked (wc, _IO_stdout);
putwchar_unlocked (c)     wchar_t c;{  CHECK_FILE (stdout, WEOF);  return _IO_putwc_unlocked (wc, stdout);}