ghci and unboxed ints

[Donald Bruce Stewart]

josefs:
> Hi,
> 
> I just played randomly with ghci for a while and encountered the following
> rather odd behaviour:
> 
> Prelude> :m GHC.Base
> Prelude GHC.Base> let a = 1# +# 2#
> Prelude GHC.Base> show (I# a)
> "18345984"
> 
> The number shown is the one I got when running on Solaris. I get a
> different one when running on Windows. It doesn't matter which numbers I
> add, the same number is always shown.
> 
> Reproducible with 6.2 and 6.2.1.

I don't know what the issue is, but it is interesting:

        Prelude> :m GHC.Base
        Prelude GHC.Base> case 1# +# 2# of a -> show (I# a)
        "3"
        Prelude GHC.Base> let a = 1# +# 2#
        Prelude GHC.Base> show (I# a)
        "1085417808"

$ ghci --version
The Glorious Glasgow Haskell Compilation System, version 6.3.20040202

-- Don