On 11/17/06, Henning Thielemann [EMAIL PROTECTED] wrote:
On Fri, 17 Nov 2006, Clara Zamolo wrote:
buildCouples = snd . foldl op (0,[])
where
op (v,xs) x = (v+x,xs++[(x,v)])
You could make something like this that doesn't have quadratic-type
appends by accumulating functions
Great page, I especially like the phrase:
[...] changing a non-terminating program [...] into a much faster one [...]
On Sat, 18 Nov 2006 06:27:34 +0100, Donald Bruce Stewart
[EMAIL PROTECTED] wrote:
After suggesting solutions based on rewrite rules to three different
questions this week,
Daniel,
you wrote:
I suspect I would be classified as a newbie relative to most posters on
this list but here's my thoughts anyway...
[...]
One of my initial responses to haskell was disappointment upon seeing
head,
fromJust and the like. 'Those look nasty', I sez to meself.
From day one
ndmitchell:
Hi
To see at a glance the various bug reports about fromJust you can
search the bug database:
http://bugs.darcs.net/[EMAIL
PROTECTED]@sort=activity@group=priority@search_text=fromJust
I count 7 bugs.
I would be interested to see the results of static analysis tools
Hi,
The FFI doesn't allow using type signatures in exported functions.
Imagine this simplified example
class Foo a where
action1 :: a - IO()
action2 :: a - IO()
exportable :: Foo a = StablePtr a - IO()
exportable ptr = do deref - deRefStablePtr ptr
action1 deref
Putting
import Distribution.Compat.FilePath
in my source results in
Could not find module `Distribution.Compat.FilePath':
it is hidden (in package Cabal-1.1.6)
I want to use 'joinFileName'.
I found this thread from the cabal-devel list
On 11/18/06, Magnus Therning [EMAIL PROTECTED] wrote:
Putting
import Distribution.Compat.FilePath
in my source results in
Could not find module `Distribution.Compat.FilePath':
it is hidden (in package Cabal-1.1.6)
I want to use 'joinFileName'.
I found this thread from the
Cabal appears to have an end-of-line bug. If the .cabal file is
created on Windows and the project is installed on a Unix system, the
resulting executable ends up having ^M at the end because Cabal
doesn't properly handle Windows line termination. If the .cabal file
is converted to Unix style,
On Sat, Nov 18, 2006 at 20:18:12 +0100, Lemmih wrote:
On 11/18/06, Magnus Therning [EMAIL PROTECTED] wrote:
Putting
import Distribution.Compat.FilePath
in my source results in
Could not find module `Distribution.Compat.FilePath':
it is hidden (in package Cabal-1.1.6)
I want to use
Hi
Great page, I especially like the phrase:
[...] changing a non-terminating program [...] into a much faster one [...]
And one important point:
In general its a bad idea for rules to change the semantics (meaning)
of your code in such a way. Consider someone using reverse . reverse
to
Hi
How about using this instead:
http://www-users.cs.york.ac.uk/~ndm/projects/libraries.php#filepath
The only reason would be that it isn't in my GHC install by default (I'm
on Debian Sid). However, I suppose I can look at this as an excellent
first experiment with Cabal and packaging Haskell
We've expanded the wiki page on 'How to write a Haskell project', to
include a complete walkthrough creating:
* Darcs
* Cabal
* QuickCheck
infrastructure.
http://haskell.org/haskellwiki/How_to_write_a_Haskell_program
Feedback welcome!
-- Don
P.S. It might even be useful to
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