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 > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe > mapapp = ((++) .) . map
Reasoning about efficiency in a pure lazy language is different. -- Tony Morris http://tmorris.net/ _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
