Message: 10
Date: Tue, 18 Jan 2011 09:53:42 +1100
From: Erik de Castro Lopo mle...@mega-nerd.com mle%2...@mega-nerd.com
Subject: Re: [Haskell-cafe] Mailing lists on projects.haskell.org?
To: haskell-cafe@haskell.org
Cc: hask...@haskell.org
Message-ID:
From: Michael Snoyman mich...@snoyman.com
I took a quick look at the enumerators library, but it doesn't seem to
have
the necessary support for handling data that comes from arbitrary C API
function calls rather than handles or sockets.
It does support this, for prior art see yaml[1]
On Tue, 18 Jan 2011, John Lato wrote:
In case anyone was replying off-list, could you please cc me as well? I
believe this is
the cause of problems with the iteratee list (which Maciej just mentioned) as
well.
Although the problem does seem intermittent.
My messages to haskell-llvm are
Hello,
This post is (hopefully) literate Haskell. I recently noticed that there
are two ways to specify instances in a common situation. Suppose I have
something like this:
{-# LANGUAGE MultiParamTypeClasses, FlexibleInstances,
NoMonomorphismRestriction, OverlappingInstances #-}
data A = A
On Tue, Jan 18, 2011 at 09:16:06AM +0530, C K Kashyap wrote:
Hi,
I was going through http://en.wikipedia.org/wiki/Monad_(category_theory) -
under Formal Definition I notice that monad is a Functor T:C - C
My question is - when we think of Maybe as a functor T:C - C should we
think that
On Tue, Jan 04, 2011 at 04:15:07PM +0100, Christian Maeder wrote:
Am 04.01.2011 15:48, schrieb Henning Thielemann:
Christian Maeder schrieb:
Am 27.12.2010 08:44, schrieb Henning Thielemann:
On Mon, 27 Dec 2010, Jonathan Geddes wrote:
#2 Provide instances automatically.
Hi Kashyap,
Could someone please help me get a better understanding of the necessity of
monads complying with these laws?
Maybe it helps to write them in do-notation. Once written like this,
it becomes clear(er?) that do-notation would be much less intuitive if
the laws would not hold:
Left
Hello,
trhsx will be installed in ~/.cabal/bin, so you will need to add that
to your PATH.
In order to use the demo code I provided you would need the latest
happstack from darcs because it contains a few differences in the API.
The code can be made to work with what is on hackage though.
The
Hi,
Sorry, I haven't been reading the cafe for a few days,
so I just saw this thread.
Erik de Castro Lopo wrote:
I tried sending mail to the haskell-llvm mailing list ( AT
projects.haskell.org) several days ago and today I received a bounce
message. Looking into the issue a little
Wow, it sure has taken me a long time to get back to this, but I got it to
work! Two ways actually. I did them both from scratch, just to make sure I
understood what was going on and could communicate it for the next poor sap
that is as ignorant as I was.
All this is done with GHC-6.12.3,
Yitzchak Gale wrote:
Thanks for this report. I have restarted exim,
but it is still not responding. I'll bring it up with
other haskell.org domain admins and see if we can
get this fixed.
It would also be a good idea to get the support email for
projects.haskell.org moved to a domain other
On 18 January 2011 19:32, Joe Bruce bruce.jo...@gmail.com wrote:
I did them both from scratch, just to make sure I
understood what was going on and could communicate it for the next poor sap
that is as ignorant as I was.
Congratulations :-)
Should/can I update the haskellwiki with this
On Tue, Jan 18, 2011 at 1:17 PM, John Lato jwl...@gmail.com wrote:
From: Michael Snoyman mich...@snoyman.com
I took a quick look at the enumerators library, but it doesn't seem to
have
the necessary support for handling data that comes from arbitrary C API
function calls rather than
On Sun, Jan 16, 2011 at 9:32 AM, Permjacov Evgeniy permea...@gmail.com wrote:
On 01/13/2011 10:45 PM, Tim Chevalier wrote:
Hello,
I've recently released version 1.0 of extcore, a library for
processing code in GHC's text-based External Core format. extcore
includes a parser, prettyprinter,
Thanks to all of You,
I think I learnt really a lot just on this thread about Haskell and also OO
in general.
I fear I'm too busy in the near future to come up with a good example and
some more questions. Might happen later, because this topic is really
interesting. Till then -- Thanks
Hey all,
For a while now, Galois has been interested in connecting automated solvers to
our programming language of choice, Haskell, to make it possible to prove
automatically some properties of our functions (rather than just testing, e.g.
with QuickCheck). We've pushed two efforts out this
Hello,
For reference, I'm wondering whether there's an easier way to build
the current version of the Haskell Platform on a PowerPC Mac running
Mac OS 10.5.8 than the way in which I documented at:
http://tim.dreamwidth.org/1715938.html
I was installing the platform from scratch as a favor for a
Thank you very much Brent,
My question is - when we think of Maybe as a functor T:C - C should
we
think that C here refers to Hakell types? As in,
(Int and Maybe Int are objects in C) and (Int - Int and Maybe Int -
Maybe
Int are arrows in C) and T is an arrow between them. Is that
Thank you very much Sebastian,
The example did make it clearer.
I can see now that monads obeying the laws is what lets the 'do' notation
work on all monads in a consistent manner.
Regards,
Kashyap
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