On 18 March 2010 13:26, Chaddaï Fouché
That's probably due to you using GHCi in a version where the GHC-specific extension concerning # is active by default (with this extension (# 2, 3 #) is an unboxed strict pair). While it's probably possible to compile this code by making sure that the extension isn't active (for instance, using ghc instead of ghci), it is probably a better idea to avoid # as an operator name.
True - if you use -fglasgow-exts rather than adding extensions selectively it bring in the conflicting extension (probably -XMagicHash) If you surround the export and definition of the # function with whitespace it should still work.
module Export ( (^) , ( # ) ) where import Prelude hiding ((^))