Exemplo n.º 1
0
double dateUtil::getAccrualFactor(date startDate,date endDate, enums::DayCountEnum dayCount){
	double accrualFactor;
	int numBizDay=0;
	switch(dayCount){
	case enums::thirty_360US:
		//This day count convention is also called Bond basis.
		if (endDate.getDay()==31 && (startDate.getDay()==30||31))
			endDate.setDay(30);
		if (startDate.getDay()==31)
			startDate.setDay(30);
		accrualFactor = thirty_360(startDate, endDate);
		break;
	case enums::thirthE_360:
		if (startDate.getDay()==31)
			startDate.setDay(30);
		if (endDate.getDay()==31)
			endDate.setDay(30);
		accrualFactor = thirty_360(startDate, endDate);
		break;
	case enums::ACT_360:
		//This day count is also called Money Market basis or Actual 360
		//This is the most used day count convention for money market instruments (maturity below one year).
		accrualFactor = (endDate.getJudianDayNumber()-startDate.getJudianDayNumber())/360.0;
		//cout<<"inside ACT_360"<<endl;
			break;
	case enums::ACT_365:
		//Also called English Money Market basis.
		//The number 365 is used even in a leap year.
		accrualFactor = (endDate.getJudianDayNumber()-startDate.getJudianDayNumber())/365.0;
		//cout<<"inside ACT_365"<<endl;
		break;
	case enums::ACT_ACT:
		if (startDate.getYear()==endDate.getYear()){
			int numDays = endDate.getJudianDayNumber()-startDate.getJudianDayNumber();
			accrualFactor = numDays/(isleapyear(startDate.getYear())?366.0:365.0);
		}else{
			int numStartYearDays = date(startDate.getYear(),12,31).getJudianDayNumber() - startDate.getJudianDayNumber() + 1;
			double startYearFactor = numStartYearDays/(isleapyear(startDate.getYear())?366.0:365.0);
			int numEndYearDays = endDate.getJudianDayNumber() - date(endDate.getYear(),1,1).getJudianDayNumber();
			double endYearFactor = numEndYearDays/(isleapyear(endDate.getYear())?366.0:365.0);
			accrualFactor = startYearFactor + endYearFactor +(endDate.getYear()-startDate.getYear()-1);
		}
		break;
	case enums::BUS_252:
		//Numerator is the number of business days (in a given calendar) from and including the start date up to and excluding the end date.
		numBizDay=0;
		for(long i = startDate.getJudianDayNumber();i<endDate.getJudianDayNumber();i++)
			if (isBizDay(i))
				numBizDay++;
		accrualFactor = numBizDay/252.0;
		break;
	case enums::DayCountNull:
	default:
		accrualFactor = (endDate.getJudianDayNumber()-startDate.getJudianDayNumber())/numDaysInYear;

	}
	return accrualFactor;
}
Exemplo n.º 2
0
date dateUtil::adjustInvalidateDate(date aDate, bool forwardAdjust){
	int monthLastDay = getMonthLastDay(aDate.getYear(), aDate.getMonth());
	if (aDate.getDay()>monthLastDay){
		if (forwardAdjust){
			aDate.setMonth(aDate.getMonth()%12+1);
			aDate.setDay(1);
		}	else{
			aDate.setDay(monthLastDay);
		}
	}
	return aDate;
}
Exemplo n.º 3
0
date dateUtil::adjustInvalidateDate(date aDate, bool forwardAdjust){
	unsigned short monthlen[]={31,28,31,30,31,30,31,31,30,31,30,31};
	if (isleapyear(aDate.getYear()) && aDate.getMonth()==2)
		monthlen[1]++;
	if (aDate.getDay()>monthlen[aDate.getMonth()-1]){
		if (forwardAdjust){
			aDate.setMonth(aDate.getMonth()%12+1);
			aDate.setDay(1);
		}
		else
			aDate.setDay(monthlen[aDate.getMonth()-1]);
	}
	return aDate;
}