I want to compile all of the fptools. This is what I
did:
I got all files via CVS. And I did
autoreconf
./configure
make
But with the make step gcc crashes with an internal
error on Syntax.hi. I already filled in a bug report
(not the most clear of them). I especially installed
an old version
Jan-Willem Maessen writes (in the Haskell Cafe):
My ultimate goal was parallelization. However, I'm now convinced it
would take about 2-3 programmer-years more of effort to realize that
goal. Parallel garbage collection (which is *not* optional on a
parallel Haskell implementation, as our
Hello to everyone :)
My name is Enrico, 40, and I write software for the industry at Beta 80
Group.
After this short introduction, here is the help request:
I'm managing the rewrite of an application, to port it to the 'classic'
Java three-tiers architecture.
Before I begin to feed the team, I
$ cat x.hs
rep0 :: Num a = [a]
rep0 = repeat 0
rep0' = repeat 0
$ hugs x.hs
...
Main :t rep0
rep0 :: Num a = [a]
Main :t repeat 0
repeat 0 :: Num a = [a]
Main :t rep0'
rep0' :: [Integer]-- WHAT??
Main :version
-- Hugs Version Nov 2002
[EMAIL PROTECTED] wrote:
rep0' :: [Integer]-- WHAT??
You just have made first contact with the Dreaded Monorphism Restriction.
--
Andreas Rossberg, [EMAIL PROTECTED]
Let's get rid of those possible thingies! -- TB
___
Haskell-Cafe mailing list
On Thu, 29 Jul 2004 [EMAIL PROTECTED] wrote:
I'm very fresh on Haskell. Exactly... chapter 13 of SOE :)
Are type classes different from Java classes?
Type classes are a static issue. They are roughly speaking bundles of
functions that can be overloaded.
x ^ n = if even n then y*y else y*y*x where y = x ^ (n `quot` 2)
x ^ n | n0 = if even n then y*y else y*y*x where y = x ^ (n `quot` 2)
Verschicken Sie romantische, coole und witzige Bilder per SMS!
Jetzt neu bei WEB.DE FreeMail:
On Thu, 29 Jul 2004, Henning Thielemann wrote:
On Thu, 29 Jul 2004 [EMAIL PROTECTED] wrote:
I'm very fresh on Haskell. Exactly... chapter 13 of SOE :)
Are type classes different from Java classes?
Type classes are a static issue. They are roughly speaking bundles of
functions that can
To put it another way, they're closer to Java interfaces - though type
classes are a more general idea, as demonstrated by the multi-parameter
type classes supported by ghc et al. You can think of them as a predicate
- this type has implementations for these overloaded functions.
Ok, very clear.
At 14:50 29/07/04 +0200, [EMAIL PROTECTED] wrote:
Are type classes different from Java classes? I think so, but I guess this
means that one should ask different things to type classes, respect to what
is being asked to Java classes.
It is this difference that's unclear to me.
I made some notes
I'm far from an expert in Haskell, but I suspect the justification is
because the version in the prelude is tail recursive while yours
isn't. So the tail recursive version should run a bit faster when n
is large.
___
Haskell-Cafe mailing list
[EMAIL
I have a little programme that doesn't compile:
module Example where
class (Show c, Ord c, Bounded c) = MyClass c
showThings :: MyClass c = c - (String, String)
showThings x =
let foo = maxBound :: c
in (show x, show foo)
If I change
Mark T.B. Carroll wrote:
I have a little programme that doesn't compile:
module Example where
class (Show c, Ord c, Bounded c) = MyClass c
showThings :: MyClass c = c - (String, String)
showThings x =
let foo = maxBound :: c
in (show x, show
On Thu, 29 Jul 2004, Bjorn Bringert wrote:
(snip)
You could use asTypeOf from the Prelude:
let foo = maxBound `asTypeOf` x
Ah. I should re-read the Prelude every couple of months. (-: Thanks!
Also, Hugs and GHC both support an extension which lets you put type
annotations in patterns:
haskell-cafe, you are listed as the maintainer of the vim haskell syntax
highlighting script. :-)
lhaskell.vim uses the tex.vim syntax script, which does set
iskeyword-=_. This makes editing haskell rather uncomfortable (eg, the
'*' command doesn't work right). I don't know what breaks if you
15 matches
Mail list logo
