webpositive/support/DateTime.cpp

472 	Constructs a BDate object with \c year \c month and \c day.
474 	Please note that a date before 1.1.4713 BC, a date with year 0 and a date
477 	that every passed year will be interpreted as is.
480 BDate::BDate(int32 year, int32 month, int32 day)
482 	_SetDate(year, month, day);
498 	archive->FindInt32("year", &fYear);
525 		ret = into->AddInt32("year", fYear);
535 	Please note that a date before 1.1.4713 BC, a date with year 0 and a date
559 BDate::IsValid(int32 year, int32 month, int32 day) const
561 	// no year 0 in Julian and nothing before 1.1.4713 BC
562 	if (year == 0 || year < -4713)
568 	if (day < 1 || day > _DaysInMonth(year, month))
572 	if (year == 1582 && month == 10 && day > 4 && day < 15)
622 	Set the date to \c year \c month and \c day.
628 BDate::SetDate(int32 year, int32 month, int32 day)
630 	return _SetDate(year, month, day);
635 	This function sets the given \c year, \c month and \c day to the
637 	invalid, the values will be set to -1 for \c month and \c day, the \c year
641 BDate::GetDate(int32* year, int32* month, int32* day)
643 	if (year)
644 		*year = fYear;
670 	resulting year, so this function will then return the latest valid date.
691 	resulting year, so this function will then return the latest valid date.
733 	Returns the year fragment of the date. If the date is invalid, the function
839 	Returns the day of the year in the range of 1 to 365 (366 in leap years). If
853 	Returns true if the passed \c year is a leap year, otherwise false. If the
854 	\c year passed is before 4713 BC, the result is undefined.
857 BDate::IsLeapYear(int32 year) const
859 	if (year < 1582) {
860 		if (year < 0)
861 			year++;
862 		return (year % 4) == 0;
864 	return (year % 400 == 0) || (year % 4 == 0 && year % 100 != 0);
869 	Returns the number of days in the year of the current date. If the date is
1065 		int32 year = d - 4800 + (m / 10);
1066 		if (year <= 0)
1067 			year--;
1068 		date.fYear = year;
1135 BDate::_SetDate(int32 year, int32 month, int32 day)
1141 	bool valid = IsValid(year, month, day);
1144 		fYear = year;
1153 BDate::_DaysInMonth(int32 year, int32 month) const
1155 	if (month == 2 && IsLeapYear(year))
1169 		int32 year = _year;
1170 		if (year < 0) year++;
1173 		int32 y = year + 4800 - a;
1177 		if (year > 1582
1178 			|| (year == 1582 && month > 10)
1179 			|| (year == 1582 && month == 10 && day >= 15)) {
1182 		} else if (year < 1582
1183 			|| (year == 1582 && month < 10)
1184 			|| (year == 1582 && month == 10 && day <= 4)) {