o_Hash

{@inheritDoc}

Answer the object's hash value. Be careful, as the range (10..20) is the same type as the range 11..19, so they should hash the same. Actually, this is taken care of during instance creation - if an exclusive bound is finite, it is converted to its inclusive equivalent. Otherwise, asking for one of the bounds would yield a value which is either inside or outside depending on something that should not be observable (because it serves to distinguish two representations of equal objects).