At present we can easily express different flavors of conjunction, but
expressing disjunction is hard.
Disjunction is not particularly difficult. See, for example,
http://okmij.org/ftp/Haskell/TTypeable/TTypeable.hs
and search for ORELSE. The code demonstrates higher-order
On Mar 22, 2012 2:56 AM, Victor Miller victorsmil...@gmail.com wrote:
I was writing a Haskell program which builds a large labeled binary tree
and then does some processing of it, which is fold-like. In the actual
application that I have in mind the tree will be *huge*. If the whole tree
is
Dear all,
once again, it's time for our monthly Haskell get-together in Munich. On
Wed, 28 Feb 2012, at 19h30, we will meet at Cafe Puck (near the
universities). Everybody is invited. If you plan to join, please go to:
http://www.haskell-munich.de/dates
and add yourself. This will help to
Hi,
I have just started learning Haskell FFI. I am trying to send a string from
hastell to a C function. For this, I am required to convert the haskell
string to byte string. I have two methods to achieve this task. Both are
listed below:
1) import Foreign.C.String
let arg1 = map
This joins the question I asked two days ago here. (See
http://haskell.1045720.n5.nabble.com/Quickest-way-to-pass-Text-to-C-code-td5582223.html
)
Hope that helps.
Le 22 mars 2012 15:10, rajendra prasad rajendradpra...@gmail.com a écrit :
Hi,
I have just started learning Haskell FFI. I am
(Sorry for the double post)
Forget about ByteString.Char8: it doesn't handle unicode as it truncates
characters.
Going from String to bytestring is easy thanks to the utf8-string (
http://hackage.haskell.org/packages/archive/utf8-string/0.3.7/doc/html/Codec-Binary-UTF8-String.html)
package and
Dear Haskell-Cafe,
I'm computing a histogram of a bunch of symbols with up to 8 bits of
information each, stored in a unboxed vector of Word8. The histogram is
represented as an unboxed vector of Int with size 2^bits. I compute the
histogram by folding an increment function.
The problem:
serialhex wrote:
On Sat, Mar 17, 2012 at 11:01 AM, Heinrich Apfelmus
apfel...@quantentunnel.de wrote:
The task is to implement a small audio synthesizer in Haskell.
seriously?!?! i'm not in his class, but i'm game! i learn better
when i'm working on something interesting, and i want to make
I assume that many haskell users out there on macs who are also users of
macports, and I bet they've hit this same issue that I've hit numerous times.
The problem is that there are 2 incompatible versions of libiconv -- one that
ships with the mac, and one that's built with macports and that
If you want to do Haskell audio synthesis, you could also use
hsc3 (good start here: http://slavepianos.org/rd/ut/hsc3-texts/). With
hsc3 you can start on serious audio synthesis with only a few lines of
Haskell. In my opinion it could use a much larger community.
Tom
On 3/22/12, Heinrich
Sorry; make that http://slavepianos.org/rd/ut/hsc3-texts/hsc3-tutorial.html
On 3/22/12, Tom Murphy amin...@gmail.com wrote:
If you want to do Haskell audio synthesis, you could also use
hsc3 (good start here: http://slavepianos.org/rd/ut/hsc3-texts/). With
hsc3 you can start on serious
Hi Victor
There was a paper at one of the early PADL conferences describing
out-out-core data structures in Ocaml. I've never seen anyone
following up this work, possibly because RAM has got so cheap in the
last decade. If you have such large trees you may find the paper
interesting.
Although
Try Miku.
https://github.com/nfjinjing/miku
some oddnesses around redefining (-) (I guess Jinjing Wang doesn't like the
way $ looks?) but you don't need to import the Air.Light stuff.
Otherwise more or less a straight port of sinatra, and you can run it on
heroku...
mark
On Wed, Mar 21, 2012
I've released a small (one-module) library [1] inspired by functions in
Data.Conduit.List like sourceList, consumeList, and take.
The most recent (by a few days) depends on conduit-0.3.*, but
vector-conduit-0.2.1.0 depends on conduit-0.2.*. Notably, however, the
two have different APIs (0.3 has
Nice package!
An idea for sourceVector is to use the streaming interface [1]. It
would be nice if GHC could fuse the array with sourceVector, avoiding
to produce the array in the first place, but I'm not going to hold my
breath =).
Cheers,
[1]
On Thu, Mar 22, 2012 at 06:16:39PM -0300, Felipe Almeida Lessa wrote:
From: Felipe Almeida Lessa felipe.le...@gmail.com
To: Jared Hance jaredha...@gmail.com
Cc: haskell-cafe@haskell.org
Date: Thu, 22 Mar 2012 18:16:39 -0300
Subject: Re: [Haskell-cafe] [ANNOUNCE] vector-conduit
Nice
giving
a real-time audio synthesizer in the style of functional reactive
programming.
you know about yampasynth right?
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On Thu, Mar 22, 2012 at 8:03 PM, Jared Hance jaredha...@gmail.com wrote:
I looked over it and decided to simply go with head/tail (not sure why I
used the index thing... head/tail is so much more functional). That
should still get some fusion benefit, right, since it all uses streams
under the
If you're not otherwise attached to MacPorts, you might want to check
out Homebrew [1]. Its integration with the rest of OS X is generally
more smoothly and I haven't come across any missing packages yet.
[1]: http://mxcl.github.com/homebrew/
On 22 March 2012 16:34, Warren Harris
Thomas,
Thanks for the recommendation. I tried installing with homebrew, and it went
fairly smoothly. Only 12 minutes to build haskell-platform, as opposed to the
11 hours to run port upgrade outdated yesterday!
I did have to get help on one thing though. Although the mac ships with
On Thu, Mar 22, 2012 at 07:31:18PM -0300, Felipe Almeida Lessa wrote:
From: Felipe Almeida Lessa felipe.le...@gmail.com
To: haskell-cafe@haskell.org
Date: Thu, 22 Mar 2012 19:31:18 -0300
Subject: Re: [Haskell-cafe] [ANNOUNCE] vector-conduit
On Thu, Mar 22, 2012 at 8:03 PM, Jared Hance
On 23 March 2012 04:55, Mark Wotton mwot...@gmail.com wrote:
Try Miku.
https://github.com/nfjinjing/miku
some oddnesses around redefining (-) (I guess Jinjing Wang doesn't like the
way $ looks?) but you don't need to import the Air.Light stuff.
Otherwise more or less a straight port of
Hi,
For the code below, where it says HERE in comments, if I remove the part
after `using` the code works fine. However, with this version it causes a
Stack space overflow (if allowed uses GBs of memory). You just need to
input a file with around 1M lines each having something like Int Value: 3
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