Whether the given interval is completely within this interval.
The interval to check for inclusion in this interval.
assert(PosInfInterval!Date(Date(1996, 1, 2)).contains( PosInfInterval!Date(Date(1999, 5, 4)))); assert(!PosInfInterval!Date(Date(1996, 1, 2)).contains( PosInfInterval!Date(Date(1995, 7, 2))));
See Implementation
Whether the given interval is completely within this interval.