sdn_start         331 ext/calendar/calendar.c 	long sdn_start, sdn_next;
sdn_start         344 ext/calendar/calendar.c 	sdn_start = calendar->to_jd(year, month, 1);
sdn_start         346 ext/calendar/calendar.c 	if (sdn_start == 0) {
sdn_start         365 ext/calendar/calendar.c 	RETURN_LONG(sdn_next - sdn_start);