Brandon S. Allbery KF8NH wrote:
(Hm, I feel a blog rant coming on.)
I take it you mean as the perfect example of how to kill off interest in
your own project :-) I can't help thinking this was so obviously going
to happen that it must have been Davids intent at the time he wrote
that
Ben Franksen [EMAIL PROTECTED] writes:
Can I convert my working repos to darcs-2?
No. You cannot push or pull between darcs-2 format repos and darcs-1 or
hashed format repos. This might not be optimal but is understandable, since
the theory underlying the darcs-2 repository format is
I've gotten most of my category theory help through the
Haskell community one way or another, but I hesitate to ask
more questions on this list if there is a better forum.
Googling turned up an old, closed list.
Is there somewhere else I should be asking my questions -- for
example, I
Hi Jinjing,
I remember having written a report on Haskore some years ago, together with
a classmate. I think that the example of transformations in twelve-tone
technique (see [1]) is one that looks very nice in Haskore due to its
simplicity. It's also simple to present to people who do not know
At Wed, 6 Aug 2008 06:29:32 +0100,
Eric Y. Kow wrote:
Dear Haskellers,
patch theory is still not defined clearly or rigorously enough for Haskellers
Are the darcs developers familiar with these papers (available on citeseer):
Undo Actions in Collaborative Work, Prakash Knister 1992
At Wed, 6 Aug 2008 00:43:55 -0500,
Galchin, Vasili wrote:
[1 multipart/alternative (7bit)]
[1.1 text/plain; ISO-8859-1 (7bit)]
Hello,
1) Is there a common assumed semantics across all of the Haskell with
things? withString? withData?
A vague semantic is that some resource is
hmmm .. Jeremy
http://notes-on-haskell.blogspot.com/2007/03/design-patterns-in-haskell-bracket.html
thx,
vasili
On Wed, Aug 6, 2008 at 2:25 AM, Jeremy Shaw [EMAIL PROTECTED] wrote:
At Wed, 6 Aug 2008 00:43:55 -0500,
Galchin, Vasili wrote:
[1 multipart/alternative (7bit)]
[1.1
Hi Jeremy and the haskell community,
I think now my question is why isn't there a higher-order with
function in the Haskell Prelude?
Regards, Vasili
On Wed, Aug 6, 2008 at 2:25 AM, Jeremy Shaw [EMAIL PROTECTED] wrote:
At Wed, 6 Aug 2008 00:43:55 -0500,
Galchin, Vasili wrote:
[1
2008/8/6 Galchin, Vasili [EMAIL PROTECTED]:
Hello,
1) Is there a common assumed semantics across all of the Haskell with
things? withString? withData?
You probably knew this already but there's nothing in the with idiom
that prevents the resource to escape. Oleg recently wrote about
hello,
Is http://hackage.haskell.org/trac/ghc/wiki/GarbageCollectorNotes a
reliable source of info on the ghc garbage collector?
thx, vasili
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On Wed, Aug 06, 2008 at 12:20:17AM -0700, Jeremy Shaw wrote:
Are the darcs developers familiar with these papers (available on citeseer):
Undo Actions in Collaborative Work, Prakash Knister 1992
Undoing Actions in Collaborative Work: Framework and Experience, Prakash
Knister 1994
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Galchin, Vasili
Is
http://hackage.haskell.org/trac/ghc/wiki/GarbageCollectorNotes
a reliable source of info on the ghc garbage collector?
Depends which version of GHC... the next release (6.10) will include the
new
Excerpts from Galchin, Vasili's message of Wed Aug 06 04:09:58 -0500 2008:
Is http://hackage.haskell.org/trac/ghc/wiki/GarbageCollectorNotes a
reliable source of info on the ghc garbage collector?
The page seems to be a little light for the most part, and it does not
seem to take into
2008/8/6 Galchin, Vasili [EMAIL PROTECTED]
Hi Jeremy and the haskell community,
I think now my question is why isn't there a higher-order with
function in the Haskell Prelude?
There is. Well, not in the prelude, but in the base package at least. It's
called bracket. But I think the
Hi,
I get this error. I think have zlib installed! what package should I
install to compile cabal on my machine (ubuntu - 8.04)
Configuring cabal-install-0.5.2...
Setup: At least the following dependencies are missing:
zlib =0.4
status of zlib on my machine is as following
bahs$ aptitude
Vikrant wrote:
I get this error. I think have zlib installed! what package should I
install to compile cabal on my machine (ubuntu - 8.04)
Configuring cabal-install-0.5.2...
Setup: At least the following dependencies are missing:
zlib =0.4
That's the Haskell package zlib, you can get it
Jeremy Shaw wrote:
Hello,
GHC is happy to compile this code:
f x = (`head` x, ())
Also
(+ x, ())
((), + x)
((), + x, ())
are accepted by GHC
This looks like a bug to me, because
(+, ())
((), x +)
are rejected.
Sections need to be in parens.
If one allows sections as tuple
On 2008 Aug 6, at 2:02, Ketil Malde wrote:
Ben Franksen [EMAIL PROTECTED] writes:
Can I convert my working repos to darcs-2?
No. You cannot push or pull between darcs-2 format repos and
darcs-1 or
hashed format repos. This might not be optimal but is
understandable, since
the theory
---
Haskell Weekly News
http://sequence.complete.org/hwn/20080806
Issue 80 - August 6, 2008
---
Welcome to issue 80 of HWN, a newsletter covering
Johan Tibell wrote:
2008/8/6 Galchin, Vasili [EMAIL PROTECTED]:
Hello,
1) Is there a common assumed semantics across all of the Haskell with
things? withString? withData?
You probably knew this already but there's nothing in the with idiom
that prevents the resource to escape.
And, it
On Wed, Aug 6, 2008 at 5:44 PM, Jules Bean [EMAIL PROTECTED] wrote:
Johan Tibell wrote:
You probably knew this already but there's nothing in the with idiom
that prevents the resource to escape.
And, it doesn't always matter. Some withs are more unsafe that others :)
if the 'with'
On Wed, 2008-08-06 at 18:21 +0200, Johan Tibell wrote:
On Wed, Aug 6, 2008 at 5:44 PM, Jules Bean [EMAIL PROTECTED] wrote:
Johan Tibell wrote:
You probably knew this already but there's nothing in the with idiom
that prevents the resource to escape.
And, it doesn't always matter. Some
There is the State Monad which is build just for that kind of purpose, I
believe:
http://www.haskell.org/all_about_monads/html/statemonad.html
That would safe you from passing around the State
Jefferson Heard schrieb:
Working with HOpenGL and GLUT, I find myself approaching a common
problem
At Wed, 6 Aug 2008 10:48:03 +0100,
Ian Lynagh wrote:
I've just had a quick read of
http://citeseer.ist.psu.edu/prakash92undoing.html
AFAICS this only really deals with the case where there are no
conflicts, and doesn't talk about merging.
AFAIK, the papers do not talking about merging.
Adrian, my understanding is that it's not that simple, because I need
to preserve the state between calls to GLUT's callbacks, which all
return IO ().
2008/8/6 Adrian Neumann [EMAIL PROTECTED]:
There is the State Monad which is build just for that kind of purpose, I
believe:
Jefferson Heard wrote:
Adrian, my understanding is that it's not that simple, because I need
to preserve the state between calls to GLUT's callbacks, which all
return IO ().
Then maybe see:
http://www.haskell.org/pipermail/haskell-cafe/2007-July/028501.html
2008/8/6 Adrian Neumann [EMAIL
On Wed, Aug 06, 2008 at 11:28:58AM -0700, Jeremy Shaw wrote:
At Wed, 6 Aug 2008 10:48:03 +0100,
Ian Lynagh wrote:
I've just had a quick read of
http://citeseer.ist.psu.edu/prakash92undoing.html
AFAICS this only really deals with the case where there are no
conflicts, and doesn't
Jefferson Heard wrote:
Adrian, my understanding is that it's not that simple, because I need
to preserve the state between calls to GLUT's callbacks, which all
return IO ().
2008/8/6 Adrian Neumann [EMAIL PROTECTED]:
There is the State Monad...
data ProgramState = ProgramState {
At Wed, 6 Aug 2008 19:59:11 +0100,
Ian Lynagh wrote:
On Wed, Aug 06, 2008 at 11:28:58AM -0700, Jeremy Shaw wrote:
At Wed, 6 Aug 2008 10:48:03 +0100,
Ian Lynagh wrote:
I've just had a quick read of
http://citeseer.ist.psu.edu/prakash92undoing.html
AFAICS this only really
The problem as stated is to find the unit for the adjunction:
((- x A), (-)^A x A)
The latter functor takes an arrow f to (f . -) x id_A and does
the obvious thing for objects. The co-unit diagram is given
as:
B^A x A eval_AB B
^
Hi,
What are the alternatives to read
a USB port (actually, a COM serial
port with an USB adapter) in
Haskell, running in Linux?
Thanks,
Maurício
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Maurício wrote:
Hi,
What are the alternatives to read
a USB port (actually, a COM serial
port with an USB adapter) in
Haskell, running in Linux?
Guessing wildly here...
Either as a regular file, or a wrapper around some ioctl calls?
/M
--
Magnus Therning
On Wed, 2008-08-06 at 13:56 -0700, Jason Dusek wrote:
The problem as stated is to find the unit for the adjunction:
((- x A), (-)^A x A)
The latter functor takes an arrow f to (f . -) x id_A and does
the obvious thing for objects. The co-unit diagram is given
as:
On Wed, 06 Aug 2008 23:11:50 +0200, Maurício [EMAIL PROTECTED]
wrote:
Hi,
What are the alternatives to read
a USB port (actually, a COM serial
port with an USB adapter) in
Haskell, running in Linux?
Have a look at:
http://www8.garmin.com/support/commProtocol.html
Maybe you can find
ACM SIGPLAN 2008 Developer Tracks on Functional Programming
http://www.deinprogramm.de/defun-2008/
Victoria, BC, Canada, 25, 27 September, 2008
Held in conjunction with ICFP 2008:
http://www.icfpconference.org/icfp2008/
DEFUN 2008
Hello,
What is the lifetime of various heap objects ... e.g. created by
allocaBytes, alloca, etc?
Regards, Vasili
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Hello Vasili,
Thursday, August 7, 2008, 9:13:43 AM, you wrote:
What is the lifetime of various heap objects ... e.g. created by
allocaBytes, alloca, etc?
alloca/allocaBytes just mimicks stack allocation but actually allocates
buffer in usual heap. this buffer lives while references to it
so Bulat ..
You seem to be saying what I suspect ... i.e. if an allocaBytes call is
inside a function, when the function is exited then the said heap object is
GC'd??
Regards, Vasili
On Thu, Aug 7, 2008 at 12:25 AM, Bulat Ziganshin
[EMAIL PROTECTED]wrote:
Hello Vasili,
Thursday,
If I am correct, I cannot associate a ForeignPtr with alloca or allocaBytes
object via newForeignPtr because the alloca/allocaBytes heap object will
be GC'd when I leave the function that allocated this object/. I.e. if I
have a heap object that I want to live beyond a function invocation, I must
Jonathan Cast [EMAIL PROTECTED] wrote:
Jason Dusek wrote:
It is an arrow that takes a C to an arrow that takes an A
and makes the product C x A. I want to write curry(C x A)
but that is ridiculous looking. What's the right notation
for this thing?
It's a curried pairing operator.
Hello Vasili,
Thursday, August 7, 2008, 9:33:32 AM, you wrote:
oh, it was my mistake. alloca behavior is completely defined by it's
generic implementation:
allocaBytes :: Int - (Ptr a - IO b) - IO b
allocaBytes size = bracket (mallocBytes size) free
although GHC implementation is much
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