Re: [Haskell-cafe] Pointfree composition for higher arity

begin Stephen Tetley quotation:

On 17 February 2010 16:05, Mike Dillon wrote: ...

...

Are you kidding me? I love writing code like this:

   ooooo = bunting bunting cardinal thrush blackbird

:)

Hi Mike

Thanks! - it took me a surprising amount of time to get from this (where I cheated and used an online 'combinator calculator'):

psi :: (b -> b -> c) -> (a -> b) -> a -> a -> c psi = c (b s (b (b c) (b (b (b b)) (c (b b (b b i)) (c (b b i) i))))) (c (b b i) i) where c = cardinal b = bluebird s = starling i = idiot

... to this:

psi :: (b -> b -> c) -> (a -> b) -> a -> a -> c psi = cardinal (bluebird starling (bluebird cardinalstar dovekie)) applicator

I just typed a bunch of bird names together, saw that the signature appeared to be "ooooo", and ran a quick test to confirm :) -md