[Haskell-cafe] A few questions on primes generating.
leaveye.guo at gmail.com
Mon Aug 13 10:22:30 EDT 2007
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 :
3) In main again, what does expression [| x |] mean ? Why this cannot be execute in GHCi ?
Thanks for any advice.
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