Re: [Haskell-cafe] (a -> [b]) -> [a -> b] ?

On Mon, Dec 04, 2006 at 07:00:23PM +0000, Joachim Breitner wrote:

I came up with: \g -> map (\n a -> g a !! n) [1..] which has the desired type and functionality, but it looks rather inelegant and messy. Any better ideas?

I like sequence a2bs = (head . a2bs) : sequence (tail . a2bs) This also makes it explicit that by golly your function had better return an infinite list, or we're in trouble. -- David Roundy Department of Physics Oregon State University