Did something change in 4.03 w.r.t. Show and functions? Mag stopped
compiling:
ghc-4.03 -c -O2 -fvia-C -O2-for-C -H20M UU_Pretty.hs
UU_Pretty.hs:9:
No instance for `Show (Int -> String -> String)'
When deriving classes for
Yes, in Haskell 98 functions are not an instance of Show.
If you want to make it so, just add
instance Show (a->b) where
show = ...
Simon
> -Original Message-
> From: Conal Elliott
> Sent: Thursday, June 03, 1999 1:15 AM
> To: 'ghc-bugs'
> Cc: 'Oege de Moor'
> Subject:
Dear Sir/Mdm,
Although it is clearly stated in the ANNOUNCE file that
"To compile up HaskellDirect from source you'll need to
have GHC 4.03 (or later) installed on your machine.",
may I ask you the following questions?
I have downloaded HaskellDirect (version 1.5).
But GHC 4.03 is not available
Not really a bug, but what does the "Simplifier still going after 4 iterations..."
message mean?
For example, I get it when compiling the following with -O:
module Simplifier where
import Monad
i,j :: MonadPlus m => m a -> m a
i x = x
j x = i (x >>= return)
The message goes away after changing
Xu Na <[EMAIL PROTECTED]> writes:
>
>
> Dear Sir/Mdm,
>
> Although it is clearly stated in the ANNOUNCE file that
> "To compile up HaskellDirect from source you'll need to
> have GHC 4.03 (or later) installed on your machine.",
> may I ask you the following questions?
>
> I have downloaded H
Show over (->) is no longer Haskell(98). You need
to define your own, if you need it.
--sigbjorn
> Conal Elliott [mailto:[EMAIL PROTECTED]] writes:
>
>
> Did something change in 4.03 w.r.t. Show and functions? Mag stopped
> compiling:
>
> ghc-4.03 -c -O2 -fvia-C -O2-for-C -H
