//# __________ PROTOCOL :: MISC __________ #//
/**
* Determine the difference between two dates. The resultant
* array contains three elements { years, months, days }.
*/
public static int[] Difference(JwDate fromDate, JwDate toDate)
{
if ( fromDate.GetOrdinal() >= toDate.GetOrdinal() )
return new int[]
{
0, 0, 0
};
int fromYear = fromDate.GetYear();
int fromMonth = fromDate.GetMonth();
int fromDay = fromDate.GetDay();
int toYear = toDate.GetYear();
int toMonth = toDate.GetMonth();
int toDay = toDate.GetDay();
int diffYears = toYear - fromYear;
int diffMonths = toMonth - fromMonth;
int diffDays = toDay - fromDay;
if ( diffDays < 0 )
{
diffDays += GetDaysInYearMonth(fromYear, fromMonth);
diffMonths--;
}
if ( diffMonths < 0 )
{
diffMonths += 12;
diffYears--;
}
if ( fromYear < 0 && toYear > 0 ) diffYears--;
if ( diffYears < 0 )
{
diffYears = 0;
diffMonths = 0;
diffDays = 0;
}
return new int[] {diffYears, diffMonths, diffDays};
}
public JwDuration Difference(JwDate d)
{
int a = GetOrdinal();
int b = d.GetOrdinal();
int c = Math.Abs(a-b);
JwDuration e = new JwDuration();
e.AddDays(c);
return e;
}
