In the documentation for Data.IntMap updateMin, a piece of example code both communicates incorrect intuition, and fails to even compile. updateMin :: (a -> a) -> IntMap a -> IntMap a updateMin (\ _ -> Nothing) (fromList [(5,"a"), (3,"b")]) -- code straight from the docs <interactive>:1:49: Couldn't match expected type `Maybe a' against inferred type `[Char]' In the expression: "a" In the expression: (5, "a") In the first argument of `fromList', namely `[(5, "a"), (3, "b")]' As a side note, the sort of operation implied by the example code was really what I was looking for in the documentation -- but such a method no longer exists in IntMap. ::sad:: Who do I tell this to / how do I ask to get it fixed? Louis Wasserman wasserman.louis@gmail.com