The interval to check whether its adjecent to this interval.
assert(PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent( NegInfInterval!Date(Date(1996, 1, 2)))); assert(!PosInfInterval!Date(Date(1996, 1, 2)).isAdjacent( NegInfInterval!Date(Date(2000, 7, 1))));
Whether the given interval is adjacent to this interval.