úÎ÷, &A range consisting of a single value.  Construct a  from a lower and upper bound.  Construct a ( from a list of lower and upper bounds. 4Tests if a given range contains a particular value. 8Tests if any of the ranges contains a particular value. #Allows quick lookups using ranges. A rather hacked-up instance. ) This is to support fast lookups using Data.Set (see ).       ranges-0.2 Data.RangesRangesRangesinglerangerangesinRangeinRangestoSetSingle mergeRangeminMax mergeRanges $fEqRange