_DBM_IOERR
#define dbm_error(__db) ((__db)->dbm_flags & _DBM_IOERR)
#define dbm_clearerr(__db) ((__db)->dbm_flags &= ~_DBM_IOERR)
return (db->dbm_flags & _DBM_IOERR);
return (db->dbm_flags &= ~_DBM_IOERR);
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;
db->dbm_flags |= _DBM_IOERR;