The DSS structure type RangeT is described in dsslib. It specifies a lower and an upper bound to an interval on the real line, and the types of these bounds. Possible types are INCLUSIVE (which means the bound is included in the interval), EXCLUSIVE (which means the bound is not included in the interval) and UNDEFINED in which case there is no bound at this end of the interval.
Note that the integer constants INCLUSIVE, EXCLUSIVE and UNDEFINED are defined in dsslib.
