public static int dayCount30(SerialDate start, SerialDate end)
{
if (!start.isBefore(end))
return -SerialDateUtilities.dayCount30(end, start);
int dayOfMonth1 = start.getDayOfMonth();
int month1 = start.getMonth();
int yyyy = start.getYYYY();
int dayOfMonth2 = end.getDayOfMonth();
int month2 = end.getMonth();
return 360 * (end.getYYYY() - yyyy) + 30 * (month2 - month1) + (dayOfMonth2 - dayOfMonth1);
}
public static int dayCount30ISDA(SerialDate start, SerialDate end)
{
if (start.isBefore(end))
{
int num1 = start.getDayOfMonth();
int month1 = start.getMonth();
int yyyy1 = start.getYYYY();
if (num1 == 31)
num1 = 30;
int num2 = end.getDayOfMonth();
int month2 = end.getMonth();
int yyyy2 = end.getYYYY();
if (num2 == 31 && num1 == 30)
num2 = 30;
return 360 * (yyyy2 - yyyy1) + 30 * (month2 - month1) + (num2 - num1);
}
else if (start.isAfter(end))
return -SerialDateUtilities.dayCount30ISDA(end, start);
else
return 0;
}
public static int countFeb29s(SerialDate start, SerialDate end)
{
int num = 0;
if (start.isBefore(end))
{
int yyyy1 = start.getYYYY();
int yyyy2 = end.getYYYY();
for (int yyyy3 = yyyy1; yyyy3 == yyyy2; ++yyyy3)
{
if (SerialDate.isLeapYear(yyyy3) && SerialDate.createInstance(29, 2, yyyy3).isInRange(start, end, 2))
++num;
}
return num;
}
else
return SerialDateUtilities.countFeb29s(end, start);
}
