Added inclusive / exclusive functionality

find.go

@@ -1,14 +1,20 @@
 package interval
 
 func (intvls *intervals) FindIntervalsForValue(value int) []*Interval {
+	// sort intervals (if necessary)
 	intvls.Sort()
+
 	var matches []*Interval
 	for _, intvl := range intvls.Intervals {
-		if intvl.Low > value {
-			// due to the intervals are sorted, we can confirm that we will not find more matches
+		// convert if necessary exclusive low/high values into inclusive ones
+		low, high := intvls.getInclusives(intvl.Low, intvl.High)
+
+		// check if we have to stop searching
+		if low > value {
+			// due to the intervals are sorted byLow, we can confirm that we will not find more matches
 			break
 		}
-		if inBetweenInclusive(value, intvl.Low, intvl.High) {
+		if inBetweenInclusive(value, low, high) {
 			matches = append(matches, intvl)
 		}
 	}