toList package:containers

toList :: IntMap a -> [(Key, a)]
containers Data.IntMap.Internal Data.IntMap.Lazy Data.IntMap.Strict Data.IntMap.Strict.Internal
Convert the map to a list of key/value pairs. Subject to list fusion. 
toList (fromList [(5,"a"), (3,"b")]) == [(3,"b"), (5,"a")]
toList empty == []
toList :: IntSet -> [Key]
containers Data.IntSet Data.IntSet.Internal
Convert the set to a list of elements. Subject to list fusion.
toList :: Map k a -> [(k, a)]
containers Data.Map.Internal Data.Map.Lazy Data.Map.Strict Data.Map.Strict.Internal
Convert the map to a list of key/value pairs. Subject to list fusion. 
toList (fromList [(5,"a"), (3,"b")]) == [(3,"b"), (5,"a")]
toList empty == []
toList :: Set a -> [a]
containers Data.Set Data.Set.Internal
Convert the set to a list of elements. Subject to list fusion.