Month Date::month() const {
Day d = dayOfYear(); // dayOfYear is 1 based
Integer m = d/30 + 1;
bool leap = isLeap(year());
while (d <= monthOffset(Month(m),leap))
--m;
while (d > monthOffset(Month(m+1),leap))
++m;
return Month(m);
}
Date::Date(Day d, Month m, Year y) {
QL_REQUIRE(y > 1900 && y < 2200,
"year " << y << " out of bound. It must be in [1901,2199]");
QL_REQUIRE(Integer(m) > 0 && Integer(m) < 13,
"month " << Integer(m)
<< " outside January-December range [1,12]");
bool leap = isLeap(y);
Day len = monthLength(m,leap), offset = monthOffset(m,leap);
QL_REQUIRE(d <= len && d > 0,
"day outside month (" << Integer(m) << ") day-range "
<< "[1," << len << "]");
serialNumber_ = d + offset + yearOffset(y);
}
inline Day Date::dayOfMonth() const {
return dayOfYear() - monthOffset(month(),isLeap(year()));
}
