SET_UNKNOWN
static Setstate Qflag = SET_UNKNOWN;
static Setstate Bdflag = SET_UNKNOWN;
static Setstate zfwflag = SET_UNKNOWN;
if (dflag != SET_UNKNOWN)
if (dflag != SET_UNKNOWN)
if (zdflag != SET_UNKNOWN)
if (zdflag != SET_UNKNOWN)
if (Qflag != SET_UNKNOWN)
if (Qflag != SET_UNKNOWN)
if (dflag == SET_UNKNOWN)
if (dflag != SET_UNKNOWN) {
static Setstate dflag = SET_UNKNOWN;
static Setstate zdflag = SET_UNKNOWN;