John Meacham wrote:
I mean, even a for loop in haskell is done as
mapM action [0..10]
I'd say _most_ uses of lists are deforested away because they are used
to express control and dataflow and arn't actually used as persistant
structures.
Yes, they are optimized away when ghc actually works. :) At the moment
this seems to be broken (try length[1..n] in 6.4.1).
-- Lennart
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