findWithDefault package:IntervalMap

findWithDefault :: Ord k => a -> k -> IntervalMap k a -> a
IntervalMap Data.IntervalMap.Generic.Lazy Data.IntervalMap.Lazy
O(log n). The expression (findWithDefault def k map) returns the value at key k or returns default value def when the key is not in the map.
findWithDefault :: Ord k => a -> k -> IntervalMap k a -> a
IntervalMap Data.IntervalMap.Generic.Strict Data.IntervalMap.Strict
O(log n). The expression (findWithDefault def k map) returns the value at key k or returns default value def when the key is not in the map. 
findWithDefault 'x' 1 (fromList [(5,'a'), (3,'b')]) == 'x'
findWithDefault 'x' 5 (fromList [(5,'a'), (3,'b')]) == 'a'