Re: [Haskell-cafe] List of functions

2005/8/31, Sebastian Sylvan :

On 8/31/05, Dinh Tien Tuan Anh wrote:

...

...

Something like (untested)...

xs <- zipWith ($) forkIO (map (\f -> f x y) funs) tids <- sequence xs

what does "zipWith ($)" do ?

$ is function application, so zipWith ($) will "zip" a list of functions with a list of arguments, by applying the functions to the arguments pair-wise, producing a list of results.

But forkIO is function not a list of functions. The above example is incorrect. I think it should be: tids <- sequence [forkIO (f x y) | f <- funs] Cheers, Krasimir