_IO_sputbackwc
result = _IO_sputbackwc (fp, c);
extern wint_t _IO_sputbackwc (_IO_FILE *, wint_t) __THROW;
libc_hidden_proto (_IO_sputbackwc)
libc_hidden_def (_IO_sputbackwc)
_IO_sputbackwc (s, c))))
_IO_sputbackwc (s, c)))