Yes, I'm interested too in this problem.
Is any body able to answer to the Luca's question?
Alba
2011/8/25 Luca Ciciriello
I found a strange behavior in my code
Here a (very) simplified version of my code:
{-# LANGUAGE PArr #-} {-# OPTIONS -fdph-seq #-}
module Main where
import Control.Parallel import GHC.PArr
parArr :: [:String:] parArr = [: "1", "2", "3", "4" :]
isElement :: String -> Bool isElement x = x `elemP` parArr
main :: IO () main = do putStrLn $ (show . isElement) "5"
The aspected result is "False" ("5" isn't a member of parArr), but the result I get is "True".
I've compiled this code with the command: ghc --make -Odph -threaded Test.hs -rtsopts -o test
and launched with: test +RTS -N2
My system is MacOS X 10.7.1 with Xcode 4.1 and GHC 7.0.4 (I've found the same behavior on Windows).
Its obvious I'm missing something. Could someone help me?
Thanks.
Luca. _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners