[ketil@ii.uib.no: Re: Enum class]

24 Oct 2001


      I just wanted to be sure you saw this from the Haskell list.

--Dylan Thurston

----- Forwarded message from Ketil Malde <ketil@ii.uib.no> -----

To: Pixel <pixel@mandrakesoft.com>
Cc: George Russell <ger@tzi.de>, haskell@haskell.org
Subject: Re: Enum class
From: Ketil Malde <ketil@ii.uib.no>

Pixel <pixel@mandrakesoft.com> writes:
...
i':: Integer
i'= 0x7fffffff
i_plus_1' = i+1
  -- ghc : 2147483648
  -- hugs: 2147483648
...
i_succ' = succ i'
  -- ghc : 2147483648
  -- hugs: -2147483648
I think Hugs is wrong.  Integer shouldn't wrap.