anyone help Bob with getting GHC to work on his Mac? Wolfgang?
Simon
-Original Message-
From: Robert Harper [mailto:[EMAIL PROTECTED]
Sent: 06 October 2005 00:48
To: Simon Peyton-Jones
Subject: ghc on macos
hi simon,
today i downloaded ghc using darwinports on my macos notebook.
installing
hi,
both of the data structures are based on Adams' balancing algorithm
which contains a bug -- at least in its proof. (Perhaps it is
correct, but I don't know anyone that knows if.)
Instead of fixing the bug I have re-derived the algorithm from the
invariant together with a (now hopefully
I've no idea what state the speceval_2 branch is in. It's where Robert
was working on optimistic evaluation. I'll let him comment.
[snip]
| ghc-5.05: panic! (the `impossible' happened, GHC version 5.05):
| Optimistic Evaluation does not currently support native code
| generation
Hi all,
(Using ghc-4.08)
consider the following program...
As it stands it will cause 'undefined' to be evaluated.
However if we replace 'broken fragment' by the
'working fragment' then it will work correctly.
The reason is straightforward: in 'broken fragment'
it obviously tries to construct
On Tue, 9 Jan 2001, Malcolm Wallace wrote:
-- broken fragment
instance (Typeable a, Typeable b) = Typeable (a,b) where
typeOf (x,y) = "("++(typeOf x)++ ","++(typeOf y)++")"
--
Is this too strict? It never uses the tuple or its arguments yet
tries to construct the tuple anyway.
it works without -O, doesn't with -O2
cu, Robert
--
Join the best: news://tui.programming_contest
http://www.tu-ilmenau.de/~robertw/icpc
main = einzeln $ numslist $ genlist []
einzeln (x:xs) = do
print x
getLine
einzeln xs
sonst = True
primes :: Integral a = [a]
primes
Do you have an idea what might go wrong here?
Robert
