Ah, thanks, it is my fault, for mis-understanding the hint from GHC. And what is the difference between fromIntegral and fromInteger ?
------------------ L.Guo 2008-01-01 ------------------------------------------------------------- From: Mark T.B. Carroll At: 2008-01-01 01:42:37 Subject: Re: [Haskell-cafe] How to convert number types. Perhaps fromIntegral does what you want? Mark _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe