hi there,
I've been working with haskell and atom dsl, however I'm new to haskell..
John Van Enk inspired me with programming arduino-atmegas , with haskell,
So here is my problem.
With an action , action :: ([String] - String) - [UE] - Atom () ,
it's possible make calls to some precoded C
On Sat, Jun 13, 2009 at 5:09 AM, A Smithasmith9...@gmail.com wrote:
Do any Haskell Meetup groups exist in or around Glasgow, an informal
get-to-gether in a pub,cafe or wherever ?
I'm in Edinburgh, and on my own have been desperately trying to rewire my
brain from Perl to Haskell without much
John,
Thanks for the reply.
In this case, would the body of my function run in a separate thread
via forkProcess (that's what is needed, maybe I didn't make it clear)?
In my previous project, I had to do like this (probably not very
portable, at least requires System.Posix):
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
-Keith
--
keithsheppard.name
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Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
It is useful if the (+) is nonstrict; although I cannot think of any
useful mathematical structure where (+) would
2009/6/13 Jochem Berndsen joc...@functor.nl:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
It is useful if the (+) is nonstrict; although I cannot think of any
Jochem Berndsen wrote:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
It is useful if the (+) is nonstrict; although I cannot think of any
useful mathematical
That's an interesting example. I guess a lazy number system like that
would work nicely for Deniz's use case.
On Sat, Jun 13, 2009 at 10:26 AM, Stephan
Friedrichsdeduktionstheo...@web.de wrote:
Jochem Berndsen wrote:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't
Deniz Dogan wrote:
2009/6/13 Jochem Berndsen joc...@functor.nl:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
It is useful if the (+) is nonstrict; although I
Calling foreign functions that return values is problematic for the
compiler -- I haven't invested enough time to come up with a good
solution.
The work around is to assign the result to an external variable. The
drawback is the result will not be available until the rule executing
the action
Am Samstag 13 Juni 2009 17:00:36 schrieb Jochem Berndsen:
Deniz Dogan wrote:
2009/6/13 Jochem Berndsen joc...@functor.nl:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception:
Daniel Fischer wrote:
Am Samstag 13 Juni 2009 17:00:36 schrieb Jochem Berndsen:
Deniz Dogan wrote:
2009/6/13 Jochem Berndsen joc...@functor.nl:
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
Hi haskell-cafe@haskell.org,
I set up a Facebook profile where I can post my pictures, videos and events and
I want to add you as a friend so you can see it. First, you need to join
Facebook! Once you join, you can also create your own profile.
Thanks,
Rakesh
To sign up for Facebook, follow
2009/6/13 Rakesh Malik invite+yn4n...@facebookmail.com:
To sign up for Facebook, follow the link below:
http://www.facebook.com/p.php?i=898160075k=Z5E62YTRPW2CUGGAX144X3r
I followed that link, in case anyone cares.
--
Deniz Dogan
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You can make numeric class instances from arbitrary Applicatives [1]. I
imagine a lot of them (e.g. Stream) would want at least some
non-strictness. We might provide strict alternatives for sum and product.
I wonder what else.
[1]
Inspired by the CLI utility unp, which was nice but lacked some DWIM
functionality, I developed hunp (or hünp, but pronounced hump because
it's easier). It automagically calls the right unpacker program for
you and works on both files and directories:
$ hunp ~/download/something/
...finds
Keith Sheppard wrote:
Is there any reason that sum isn't strict? I can't think of any case
where that is a good thing.
Prelude sum [0 .. 100]
*** Exception: stack overflow
As others have said, there are cases where non-strictness is what you
want. And if you are using a type that is
---
Haskell Weekly News
http://sequence.complete.org/hwn/20090613
Issue 121 - June 13, 2009
---
Welcome to issue 121 of HWN, a newsletter covering
I'm pleased to announce the release of hledger 0.6. For docs, online
demo etc., see http://hledger.org .
Some pre-built binaries are now available at http://hledger.org/
binaries .
Or, install with: cabal install hledger [-fhapps] [-fvty]. (Using the
latest Haskell Platform, cabal install
Dimitry Golubovsky wrote:
John,
Thanks for the reply.
In this case, would the body of my function run in a separate thread
via forkProcess (that's what is needed, maybe I didn't make it clear)?
No; at least not automatically. The idea is that a function that is
Channel - IO Channel
On Sat, Jun 13, 2009 at 4:01 PM, John Goerzen jgoer...@complete.org wrote:
Dimitry Golubovsky wrote:
where hscpid corresponds to a process that runs a Haskell function
(hsffigMain :: a - b - c - IO ()) defined within the same program,
and gccpid runs an external program (gcc), and they
On Sat, Jun 13, 2009 at 05:06:41PM -0700, Jason Dagit wrote:
On Sat, Jun 13, 2009 at 4:01 PM, John Goerzen jgoer...@complete.org wrote:
Dimitry Golubovsky wrote:
where hscpid corresponds to a process that runs a Haskell function
(hsffigMain :: a - b - c - IO ()) defined within the
John,
On Sat, Jun 13, 2009 at 7:01 PM, John Goerzenjgoer...@complete.org wrote:
where hscpid corresponds to a process that runs a Haskell function
(hsffigMain :: a - b - c - IO ()) defined within the same program,
and gccpid runs an external program (gcc), and they are piped
together. I am
Hi,
I am learning to use cabal for my code.
Just when I start, I met a question, is there an easy way to find
out what packages my code depends?
Thanks.
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Dimitry Golubovsky wrote:
I'll try to write a wrapper for a forked process inside a Channel -
IO Channel typed function.
Your best bet would be to start with these instances in HSH.Command:
instance ShellCommand (String, [String]) where
instance ShellCommand String where
and the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
On Sat, Jun 13, 2009 at 10:22 PM, Magicloud Magiclouds wrote:
Hi,
I am learning to use cabal for my code.
Just when I start, I met a question, is there an easy way to find
out what packages my code depends?
Thanks.
Not really. The easiest
Hello all,
It seems like getDirectoryContents applies codepage conversion based
on the default program locale under Windows. What this means is that
if my default codepage is some kind of Latin, Asian glyphs get
returned as '?' in the filename. By '?' I don't mean that the font is
lacking the
On Sat, Jun 13, 2009 at 8:41 PM, Shu-yu Guos...@rfrn.org wrote:
Hello all,
It seems like getDirectoryContents applies codepage conversion based
on the default program locale under Windows. What this means is that
if my default codepage is some kind of Latin, Asian glyphs get
returned as '?'
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