Re: [Haskell-cafe] Re: help with Haskell programming

Using composition can be tricky with more than one arg. I just want to be sure you're not really looking for something like:

func :: (a -> Bool) -> (b -> Bool) -> (a -> b -> Bool)

keeping with your given type I think you're looking for something like:

func f1 f2 x = (f1 x) || (f2 x)

I'm sure there is a nice way to do this with function composition but I still find composition less intuitive than explicit args in cases like this. On Sun, Apr 18, 2010 at 1:00 PM, Mujtaba Boori wrote:

Thanks for helping me but I have another problem (sorry for asking) . I tried to figure it out . how about if I want to compare two kind with (&&) (||)  for func :: (a -> Bool) -> (a -> Bool) -> (a -> Bool)

I tried some thing like func = ((||) .) This is the annoying part about Haskell . I can not understand composition .

On Sun, Apr 18, 2010 at 4:35 PM, Mujtaba Boori wrote:

...

Hello I am kinda newbie in Haskell you can help help me with some programming I am trying to make function like for example func :: (a -> Bool) -> (a -> Bool) this function make calculation  and return bool . I want to be able to make bool True when It is False and False when it is True while returning the a. Thank you -- Mujtaba Ali Alboori

-- Mujtaba Ali Alboori

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