DaysInMonth
int32 DaysInMonth() const;
if (oldDay > date.DaysInMonth())
date.SetDay(date.DaysInMonth());
const int32 daysInMonth = startOfMonth.DaysInMonth();
const int32 daysInMonth = startOfMonth.DaysInMonth();
const int32 lastDayBefore = lastDayInMonthBefore.DaysInMonth();
const int32 daysMonth = startOfMonth.DaysInMonth();
int32 days = fDate.DaysInMonth();
while (day > fDate.DaysInMonth())
int32 days = fDate.DaysInMonth();