2012/1/6 AUGER Cédric sedri...@gmail.com
when you write forall a. exists b. a - b - a, then you allow the
caller to have access to b to produce a (didn't you write a-b-a?)
Yes, sorry, I always assumed independence between the type variables. Like
in:
f :: forall a. a - (forall b. b - a)
being
I was messing around with type-classes (familiarization exercises) when
I hit a probably newbie problem. Reducing it to the simplest case...
module BinTree ( WalkableBinTree, BT (Branch, Empty) ) where
-- n : node type
-- d : data item type wrapped in each node
class WalkableBinTree n
On 01/06/2012 11:16 AM, Steve Horne wrote:
I was messing around with type-classes (familiarization exercises) when
I hit a probably newbie problem. Reducing it to the simplest case...
module BinTree ( WalkableBinTree, BT (Branch, Empty) ) where
-- n : node type
-- d : data item type wrapped
I don't know if there's a ghc main config file (I haven't found any) but
you can always use one of the following:
1) alias
2) Modify the lib field of one of the package config files in .ghc or
/usr/lib/ghc,
probably of ghc itself.
3) Modify your cabal files. You can use extra-lib-dirs or
Steve Horne sh006d3...@blueyonder.co.uk writes:
On 05/01/2012 11:09, Brandon Allbery wrote:
On Thu, Jan 5, 2012 at 05:57, Steve Horne
sh006d3...@blueyonder.co.uk
mailto:sh006d3...@blueyonder.co.uk wrote:
-- groupCut - Similar to groupBy, but where groupBy assumes an
equivalence
On Thu, Jan 5, 2012 at 5:40 PM, Johannes Waldmann
waldm...@imn.htwk-leipzig.de wrote:
How could I use haxr (http://www.haskell.org/haskellwiki/HaXR)
to build a stateful server?
It should listen on some port,
and fork threads (inside Haskell land) to handle incoming calls.
Any of the Haskell
On 06/01/2012 10:29, Steffen Schuldenzucker wrote:
On 01/06/2012 11:16 AM, Steve Horne wrote:
I was messing around with type-classes (familiarization exercises) when
I hit a probably newbie problem. Reducing it to the simplest case...
module BinTree ( WalkableBinTree, BT (Branch, Empty) )
On 06/01/2012 10:39, Jon Fairbairn wrote:
groupBy is currently implemented using span. It strikes me that we
ought to specify some properties for what we want. Start by defining:
pairwiseInOrderBy p l = all (uncurry p) (l `zip` drop 1 l) giving all
(pairwiseInOrderBy p) (groupCut p l) and we
On 01/06/2012 11:51 AM, Steve Horne wrote:
On 06/01/2012 10:29, Steffen Schuldenzucker wrote:
On 01/06/2012 11:16 AM, Steve Horne wrote:
[...]
module BinTree ( WalkableBinTree, BT (Branch, Empty) ) where
-- n : node type
-- d : data item type wrapped in each node
class WalkableBinTree n
Dear Steve, et al.,
On 6 Jan 2012, at 11:00, haskell-cafe-requ...@haskell.org
haskell-cafe-requ...@haskell.org wrote:
From: Steve Horne sh006d3...@blueyonder.co.uk
Date: 6 January 2012 10:51:58 GMT
To: Steffen Schuldenzucker sschuldenzuc...@uni-bonn.de
Cc: Haskell Cafe Mailing List
Le Fri, 6 Jan 2012 10:59:29 +0100,
Yves Parès limestr...@gmail.com a écrit :
2012/1/6 AUGER Cédric sedri...@gmail.com
when you write forall a. exists b. a - b - a, then you allow the
caller to have access to b to produce a (didn't you write
a-b-a?)
Yes, sorry, I always assumed
Hello,
Looks like the repo [1] for the OpenAL bindings that Sven Panne
created [2] is no longer available. I assume this is a result of The
Great Server Outage of 2011 [3]. Do other bindings exist (I didn't
see any on hackage, google, or the wiki [4])?
I can import the source that is available
Hi Haskell,
I was writing some tests that involved a large number of quickcheck
properties which don't ship with the library itself, so I thought I
would package them all together and put the orphan instances on
Hackage. Here's what I have so far:
Thanks Sanket,
That ticket https://github.com/haskell-hub/hub-gen/issues/8 on the need
for user-space installs is a model of clarity.
I don't have any problem with installing the tools into user-land - this
will be true of all of the components in the justhub distro - provided you
start with
On Fri, Jan 6, 2012 at 8:43 AM, Antoine Latter aslat...@gmail.com wrote:
I was writing some tests that involved a large number of quickcheck
properties which don't ship with the library itself, so I thought I
would package them all together and put the orphan instances on
Hackage.
That's a
Hello,
I saw [1] there is a lot of activity in the Haskell community regarding
Amazon Web Services (AWS). As they allow an easy start [2], I decided to
giv it a try and followed the procedure published by JP Moresmau [3] to
install the Haskell Plattform on Amazon Linux (a minimal linux
Hello!
I'm pleased to announce the first release of crypto-conduit [1]! The
crypto-api [2] package provides APIs for many cryptographic
operations, such as cryptographic hashes and block ciphers. This new
crypto-conduit package allows you to use many of these operations with
conduits [3],
On Sat, Jan 7, 2012 at 8:08 AM, Nicu Ionita nicu.ion...@acons.at wrote:
It seemed to work pretty well, with some problems when configuring HP,
because although libgmp was already installed, it was not recognized. I
installed the newer version 5.0.2 (from sources) [4], did some tricks (cp
On Sat, Jan 7, 2012 at 1:04 PM, Yucheng Zhang yczhan...@gmail.com wrote:
ldconfig -n /usr/bin
Sorry, it should be:
ldconfig -n /usr/lib
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