The interval to check whether its adjecent to this interval.
std.datetime.date.DateTimeException if the given interval is empty.
assert(PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent( Interval!Date(Date(1989, 3, 1), Date(1996, 1, 2)))); assert(!PosInfInterval!Date(Date(1999, 1, 12)).isAdjacent( Interval!Date(Date(1999, 1, 12), Date(2011, 9, 17))));
Whether the given interval is adjacent to this interval.