FUNCTION c_julgre(year, jdate, month, day)
long *year; long *jdate; long *month; long *day;
The year.
The Julian date in the given year. The Julian date is the numerical position of the date in the year, starting with January 1 at 1 and ending with December 31 at 365 (366 in a leap year).
The number of the month, where January = 1 and December = 12.
The day of the month.
The Julian date of the given year is converted to a Gregorian date (month and day).
c_julgre() is located in the file julian.c.
c_julgre() has no return value.