Dusan Kolar wrote:
Hello all,
During a small project I'm trying to develop a small application. It becomes quite often that I need a function mapapp:
mapapp _ [] ap = ap mapapp f (a:as) ap = f a : map f as ap
I tried hoogle to find such a function with no success. Is there any function/functions built-in "standard" libraries that could easily satisfy the functionality with the same or even better (?) efficiency?
Of course, (map f list) ++ append would do the same as
mapapp f list append
but with less efficiency. Or am I wrong?
Thanks
Dusan
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mapapp = ((++) .) . map Reasoning about efficiency in a pure lazy language is different. -- Tony Morris http://tmorris.net/