Symbol: F_ISDAY
usr.bin/calendar/calendar.c
284
if ((flags & (F_ISDAY|F_ISDOW)) || v1 > 12) {
usr.bin/calendar/calendar.c
318
if (flags & F_WILDMONTH && flags & F_ISDAY && day == tp->tm_mday)
usr.bin/calendar/calendar.c
370
*flags |= F_ISDAY | F_WILDDAY;