[Haskell-cafe] what is wrong w my IORef Word32 ?

[Taylor Hedberg]

Joerg Fritsch, Thu 2013-07-18 @ 19:22:46+0200:
> Can I easily fix the modifyIORef statement by swapping "something" ?
> --Joerg

Replace `shiftL` with `flip shiftL` and change the type signature of
`sLbitfield` to take an Int instead of an Integer.
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