This compiles badly in 7.4.2: f :: Int -> Word f = fromIntegral
I need a workaround. On Mon, Dec 17, 2012 at 2:35 AM, Simon Peyton-Jones <simo...@microsoft.com> wrote: > I don't understand the problem clearly enough to help. Can you give a > concrete example? > > Simon > > | -----Original Message----- > | From: glasgow-haskell-users-boun...@haskell.org [mailto:glasgow-haskell- > | users-boun...@haskell.org] On Behalf Of Johan Tibell > | Sent: 14 December 2012 23:17 > | To: glasgow-haskell-users > | Subject: Need workaround for lack of fromIntegral/Int->Word rules in > | 7.4.2 > | > | I'm trying to work around the lack of some fromIntegral/Int->Word rules > | in 7.4.2. I tried something like: > | > | int2Word :: Int -> Word > | #if defined(__GLASGOW_HASKELL__) > | int2Word (I# i#) = W# (int2Word# i#) > | #else > | int2Word = fromIntegral > | #endif > | > | {-# RULES "fromIntegral/Int->Word" fromIntegral = int2Word #-} > | > | but that didn't work as some fromSmallInteger and integerToWord function > | calls got inserted before my rule had a chance to fire. Can anyone think > | of a workaround that would work with 7.4.2? > | > | P.S. The reason I want this workaround is that some of my users are > | stuck on 7.4.2 and this regression is affecting them quite badly, making > | me want to try to fix it in my library. > | > | Cheers, > | Johan > | > | _______________________________________________ > | Glasgow-haskell-users mailing list > | Glasgow-haskell-users@haskell.org > | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users