Thanks to people for the explanations. To my question
1. elems :: Set a -> [a] setToList :: Set a -> [a]
These two look like synonyms, but have different comments. Am I missing something?
Jens Fisseler
Both functions compute the same list, and IMHO the comments state the same.
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. - ? ----------------- Serge Mechveliani mechvel@botik.ru