io_unset_eof      358 io.c           #define io_seek(fptr, ofs, whence) (io_unset_eof(fptr), lseek(flush_before_seek(fptr)->fd, ofs, whence))
io_unset_eof     2849 io.c               io_unset_eof(fptr);
io_unset_eof     2886 io.c               io_unset_eof(fptr);