Returns true iff the interval is empty. An interval is empty iff begin == end.
assert(TaggedInterval().empty); assert(!TaggedInterval(1, 10, 20).empty); assert(!TaggedInterval(2, 20, 40).empty); assert(TaggedInterval(3, 60, 60).empty);
See Implementation
Returns true iff the interval is empty. An interval is empty iff begin == end.