This value is only used for dates comparison inside ODateTimeType;
_getValue is used in OValueLimitedType_Base::_validate to comnpare
to minimal and maximal cached values, and the latter are set using
normalizeValue. The choice of null date is ~random, and in theory,
we could just normalize using Date::GetAsNormalizedDays(), but the
null date close enough to the actual dates has an upside of keepng
enough precision for time part - so just use the most used epoch,
which gives an optimized GetAsNormalizedDays, and hence, a faster
operator-.
Change-Id: I35723373107b2786633c7ddb3cfb82a7dcc4deaa
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/190827
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Mike Kaganski
89b0b449d8