[Haskell-cafe] A few questions on primes generating.

13 Aug 2007

      Hi All:

I am reading http://www.haskell.org/haskellwiki/Prime_numbers

The code in sector "1 Bitwise prime sieve".

I have 3 questions about it.

1) In function go, what does the number 46340 mean ? Is it sqrt(MAX_LONG) ?
2) We have this type definition :
    pureSieve :: Int -> Int
   Why there is no error (type mismatch) of this call in func main :
    pureSieve 10000000
3) In main again, what does expression [| x |] mean ? Why this cannot be execute in GHCi ?

Thanks for any advice.

    Regards
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L.Guo
2007-08-13