The interval to check for inclusion in this interval.
std.datetime.date.DateTimeException if the given interval is empty.
assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains( Interval!Date(Date(1990, 7, 6), Date(2000, 8, 2)))); assert(PosInfInterval!Date(Date(1996, 1, 2)).contains( Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17)))); assert(PosInfInterval!Date(Date(1996, 1, 2)).contains( Interval!Date(Date(1998, 2, 28), Date(2013, 5, 1))));
Whether the given interval is completely within this interval.