I meant the description in the ghc-6.4 documentation. Data.Set.html says " elems :: Set a -> [a] O(n). The elements of a set.
setToList :: Set a -> [a] O(n). Convert the set to a list elements. " What is the difference? If they are really equivalent, then, it is natural either to remove `elems' or to follow the general GHC policy and to move setToList to the `Obsolete' list section in documentation, like it was done with many other functions for Set and FiniteMap. - ?
Well, seems like both of us have messed something up. The ghc-6.4 documentation for 'setToList' says "Obsolete equivalent of elems", whereas the documentation for 'toList' (that what I was referring to) says "O(n). Convert the set to a list of elements." But, by looking at the source code, one can easily see that 'setToList' if defined in terms of 'elems' setToList :: Set a -> [a] setToList = elems which in turn is defined as elems :: Set a -> [a] elems s = toList s So, both 'setToList' and 'elems' do the same, and 'setToList' is marked as obsolete, so use 'elems'. Regards, Jens