JewishToSdn 201 ext/calendar/calendar.c {"Jewish", "CAL_JEWISH", JewishToSdn, SdnToJewish, 13, 30, JewishToSdn 645 ext/calendar/calendar.c RETURN_LONG(JewishToSdn(year, month, day)); JewishToSdn 80 ext/calendar/sdncal.h long int JewishToSdn(int year, int month, int day);