hmm.. I do agree that taking elements larger than say 2-billion is insane .. however, I have no intention of doing that. But the thing is the value I am getting is of type Integer but it actually very small and I am unable to pass it as is. So is there a way to convert a value of type Integer to Int ? This might be obvious.. But I am a newbie to the whole Haskell thing ... Thanks, Sunil. On Wed, Aug 10, 2011 at 8:05 PM, Ertugrul Soeylemez wrote:

Sunil S Nandihalli wrote:

...

I feel forcing the first argument of take to be an Int is unnecessarily restrictive .. Is there a rationale behind not making it just (Integral a) ?

This would be an overgeneralization and you would pay for it with a performance loss. There is no reason to generalize here, because most indexing and counting functions use an Int.

If you feel that you might exhaust Int (which is very unlikely on 32 bit and practically impossible on 64 bit), you can use genericTake from Data.List.

Data.List.genericTake :: Integral i => i -> [a] -> [a]

Greets, Ertugrul

-- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/

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ah that is exactly what I wanted .. thanks Daniel. Sunil. On Thu, Aug 11, 2011 at 12:22 AM, Daniel Fischer < daniel.is.fischer@googlemail.com> wrote:

On Wednesday 10 August 2011, 20:42:05, Sunil S Nandihalli wrote:

...

hmm.. I do agree that taking elements larger than say 2-billion is insane .. however, I have no intention of doing that. But the thing is the value I am getting is of type Integer but it actually very small and I am unable to pass it as is. So is there a way to convert a value of type Integer to Int ? This might be obvious.. But I am a newbie to the whole Haskell thing ...

Use fromInteger or fromIntegral

...

Thanks, Sunil.

2011/8/10 Daniel Fischer :

Use fromInteger or fromIntegral

Wouldn't it be cool if Hoogle came up with fromInteger as the first result for "Integer -> Int" ? As it is now, you have to search for "Integer -> Int -syb -containers -time -deepseq" Don't know if it's easy though. David.