[Haskell-cafe] General function to count list elements?
Bulat Ziganshin
bulat.ziganshin at gmail.com
Sat Apr 18 11:08:29 EDT 2009
Hello michael,
Saturday, April 18, 2009, 6:56:20 PM, you wrote:
> Is there a general function to count list elements. I'm trying this
you should add Eq restriction to type declaration since "==" operation
belomngs to Eq class and your function may work only with types
supporting comparision:
count :: (Eq a) => a -> [a] -> Int
--
Best regards,
Bulat mailto:Bulat.Ziganshin at gmail.com
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