public override DvDuration Diff(DvTemporal <DvDate> b)
{
DesignByContract.Check.Require(b is DvDate, "Expected a DvDate instance in Diff function.");
DvDate bObj = b as DvDate;
Iso8601Date bObjIsoDate = bObj.isoDate;
if (bObj == this)
{
return(new DvDuration("PT0S"));
}
double fractionalSecondsDiff = 0;
int secondsDiff = 0;
int hoursDiff = 0;
int minutesDiff = 0;
int daysDiff = 0;
int weeksDiff = 0;
int monthsDiff = 0;
int yearsDiff = 0;
Iso8601Date leftOperand = new Iso8601Date(this.Value);
Iso8601Date rightOperand = new Iso8601Date(bObj.Value);
if (leftOperand < rightOperand)
{
leftOperand = new Iso8601Date(bObj.Value);;
rightOperand = new Iso8601Date(this.Value);
}
if (!leftOperand.DayUnknown && !rightOperand.DayUnknown)
{
daysDiff = leftOperand.Day - rightOperand.Day;
}
int daysInMonth = 0;
if (!leftOperand.MonthUnknown && !rightOperand.MonthUnknown)
{
monthsDiff = leftOperand.Month - rightOperand.Month;
if (leftOperand.Month > 1)
{
daysInMonth = System.DateTime.DaysInMonth(leftOperand.Year, leftOperand.Month - 1);
}
else
{
daysInMonth = System.DateTime.DaysInMonth(leftOperand.Year - 1, leftOperand.Month - 1 + Iso8601DateTime.monthsInYear);
}
}
yearsDiff = leftOperand.Year - rightOperand.Year;
Iso8601Duration diff = Date.NormaliseDuration(yearsDiff, monthsDiff, weeksDiff, daysDiff, hoursDiff, minutesDiff, secondsDiff, fractionalSecondsDiff, daysInMonth);
return(new DvDuration(diff.ToString()));
}
public override DvDuration Diff(DvTemporal <DvTime> b)
{
DesignByContract.Check.Require(b is DvTime, "Expected a DvTime instance in Diff function.");
DvTime bObj = b as DvTime;
if (bObj == this)
{
return(new DvDuration("PT0S"));
}
double fractionalSecondsDiff = 0;
int secondsDiff = 0;
int hoursDiff = 0;
int minutesDiff = 0;
int daysDiff = 0;
int weeksDiff = 0;
int monthsDiff = 0;
int yearsDiff = 0;
Iso8601Time leftOperand = new Iso8601Time(this.Value);
Iso8601Time rightOperand = new Iso8601Time(bObj.Value);
if (leftOperand < rightOperand)
{
leftOperand = new Iso8601Time(bObj.Value);;
rightOperand = new Iso8601Time(this.Value);
}
if (leftOperand.HasFractionalSecond && rightOperand.HasFractionalSecond)
{
fractionalSecondsDiff = leftOperand.FractionalSecond - rightOperand.FractionalSecond;
}
if (!leftOperand.SecondUnknown && !rightOperand.SecondUnknown)
{
secondsDiff = leftOperand.Second - rightOperand.Second;
}
if (!leftOperand.MinuteUnknown && !rightOperand.MinuteUnknown)
{
minutesDiff = leftOperand.Minute - rightOperand.Minute;
}
hoursDiff = leftOperand.Hour - rightOperand.Hour;
int daysInMonth = 0;
Iso8601Duration diff = Date.NormaliseDuration(yearsDiff, monthsDiff, weeksDiff, daysDiff, hoursDiff, minutesDiff, secondsDiff, fractionalSecondsDiff, daysInMonth);
DesignByContract.Check.Assert(diff.Years == 0 && diff.Months == 0 && diff.Days == 0);
return(new DvDuration(diff.ToString()));
}
public abstract DvDuration Diff(DvTemporal <T> b);