"Richard O'Keefe" <o...@cs.otago.ac.nz> writes: > The problem we were asked about was specifically > a > aa > aaa > The code (iterate ('a':) "\n") does not give the right answer. > It's not just that it produces an infinite list instead of three > strings, it doesn't even start with the right string. It starts > with "\n" when we need "a\n".
It was impossible to determine that from the question. > To produce the specified output using that pattern, you need > (take 3 . tail . iterate ('a':)) "\n" take 9, surely? > or any of several other alternatives. > > The original poster also didn't ask "what is the best way to do > this", but specifically asked about doing it with list > comprehension. Presumably this was an attempt to understand list > comprehension better. Perhaps, but as the OP didn't follow up to the message where I said that it wasn't clear what the question was, by the time Henning posted, I think he was justified in generalising the question and taking the answer further. This café is for discussion; it's not a suitable place for asking a question, copying out the answer and disappearing without further comment. -- Jón Fairbairn jon.fairba...@cl.cam.ac.uk _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe