I'm not getting this issue, but to fix it, given whatever you shell
you use with your terminal (Terminal.app, iTerm, etc) program, just
stick this into the rc file for it:
export DYLD_LIBRARY_PATH=/opt/local/lib:$DYLD_LIBRARY_PATH
For example, in this case it would exist in my ~/.zshrc - it
Maybe this example is more enlightening?
-- doesn't compile
-- f x = x x
-- does compile under GHC at least
g :: (forall a. a - a) - (forall a. a - a)
g x = x x
h = g id
(although I don't know if it really answers your question)
One big motivation for impredicativity, as I understand
Here is another example that doesn't compile under current GHC directly:
f = (runST .)
ghci reports the type of f as
(a1 - forall s. ST s a) - a1 - a
But (f return) doesn't typecheck, even though the type of return is
return :: forall a s. a - ST s a
Oddly, this does typecheck if we
On Tue, Sep 16, 2008 at 4:49 PM, John MacFarlane [EMAIL PROTECTED] wrote:
I'm hoping some Haskell developers who use Macs can help me with this
one. I can install pcre-light just fine using cabal install. But when I
try to use it, I get this error:
[snip]
OK, so it can't find the pcre library
On 17 Sep 2008, at 07:05, Wei Hu wrote:
Hello,
I only have a vague understanding of predicativity/impredicativity,
but cannot
map this concept to practice.
We know the type of id is forall a. a - a. I thought id could not
be applied
to itself under predicative polymorphism. But Haksell
I stumbled upon hircules-0.3 IRC client and decided to take it for a test
drive.
I managed to get it to compile under ghc-6.8.3/win32, converted it to use
Text.Codec.Iconv (the old version of included Iconv.hs should also work),
but it seems it doesn't work. It only gives an empty form and
On Tue, Sep 16, 2008 at 5:31 PM, david48 [EMAIL PROTECTED] wrote:
the getCh funtion is supposed to return an interpreted Key with values
like KeyChar c, KeyReturn, KeyBackspace, etc.
but in fact, it only ever returns KeyChar c values !
Nevermind, issue solved.
Say I acquire a text by readFile, feed it to a lazy parser and the parser
stops reading because of a parse error. After the parser error I won't
fetch more characters from the text file, but readFile does not get to
know that and cannot close the file. Actually, when encountering a parser
On Tue, 16 Sep 2008, Mauricio wrote:
Hi,
A small annoyance some users outside
english speaking countries usually
experiment when learning programming
languages is that real numbers use
a '.' instead of ','. Of course, that
is not such a problem except for the
inconsistence between computer
On Tue, Sep 16, 2008 at 11:32:04PM +0200, Martin Huschenbett wrote:
Hi all,
taking a look at this tutorial under Windows Vista I ran into a problem:
You should get the latest darcs version which contains the conditional
cabal flag:
if !os(windows)
Build-Depends:unix
Hi Henning,
I tend to use openFile, hGetContents, hClose - your initial readFile
like call should be openFile/hGetContents, which gives you a lazy
stream, and on a parse error call hClose.
Thanks
Neil
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Hello Johan,
On Wed, Sep 17, 2008 at 1:12 AM, Johan Tibell [EMAIL PROTECTED]wrote:
On Tue, Sep 16, 2008 at 11:15 AM, Donnie Jones [EMAIL PROTECTED] wrote:
Hello Johan Tibell,
Hyena looks very interesting. From the github tracking, you've been
working... Maybe a release soon?
I'm
Hi.
After reading the chapter about IO in the Real Word Haskell book, I
have noted that there is no support for opening a temporary file that
will be automatically removed at program termination.
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that
Hi Manuel,
After your tip, I check the file, it permissions and it content, and
find that this specific file looks for perl in an existing place; this
is a fresh Leopard and I just installed a few things using binaries.
It seems GHC expects perl to be installed through macPorts or Fink and
Amen,
Those are the hard question that the python community needs to answer (I
am not sure they want to answer, tho).
They are also part of the reasons we are switching to Haskell.
L.
Don Stewart wrote:
Don Stewart ha scritto:
http://www.heise-online.co.uk/open/Shuttleworth-Python-needs-to-focus-on-future--/news/111534
cloud computing, transactional memory and future multicore processors
Multicore support is already supported in Python, if you use
multiprocessing, instead of
Multicore support is already supported in Python, if you use
multiprocessing, instead of multithreading.
This is one of the reasons for my other question on this list, about
whether you can solve all problems using multiple isolated processes
with message passing.
--
Bruce Eckel
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio Perillo [EMAIL PROTECTED] wrote:
http://www.heise-online.co.uk/open/Shuttleworth-Python-needs-to-focus-on-future--/news/111534
cloud computing, transactional memory and future multicore processors
Multicore support is already
On Wed, Sep 17, 2008 at 1:17 PM, Manlio Perillo
[EMAIL PROTECTED] wrote:
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that does exactly this, and the code is portable; on
Windows it uses O_TEMPORARY_FILE flag, on POSIX systems the file is
unlink-ed as
Multiprocessing is hardly a solution... I realize the Python
interpreter's fairly lightweight on its own, but the weight of a full
unix process plus the weight of the python interpreter in terms of
memory, context switching times, and finally the clunkiness of the
fork() model (which is HOW many
Hi Bruce,
On Wed, Sep 17, 2008 at 15:03, Bruce Eckel [EMAIL PROTECTED] wrote:
Multicore support is already supported in Python, if you use
multiprocessing, instead of multithreading.
This is one of the reasons for my other question on this list, about
whether you can solve all problems using
Well, I'm a huge Python fan myself, but multiprocessing is not really
a solution as much as it is a workaround. Python as a language has no
problem with multithreading and multicore support and has all
primitives to do conventional shared-state parallelism. However, the
most popular
Hi again,
On Wed, Sep 17, 2008 at 15:13, Bruce Eckel [EMAIL PROTECTED] wrote:
Well, I'm a huge Python fan myself, but multiprocessing is not really
a solution as much as it is a workaround. Python as a language has no
problem with multithreading and multicore support and has all
primitives to
On Wed, Sep 17, 2008 at 01:31:26PM +0200, Henning Thielemann wrote:
Say I acquire a text by readFile, feed it to a lazy parser and the parser
stops reading because of a parse error. After the parser error I won't
fetch more characters from the text file, but readFile does not get to
know
Arnar Birgisson ha scritto:
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio Perillo [EMAIL PROTECTED] wrote:
http://www.heise-online.co.uk/open/Shuttleworth-Python-needs-to-focus-on-future--/news/111534
cloud computing, transactional memory and future multicore processors
Both Jython and JRuby can use multicore parallelism. Which, of
course, you need desperately when running in Jython and JRuby, because
they're slow as christmas for most tasks. In addition, Jython is not
a predictably complete version of Python and its internals are not
well documented in the
On Wed, Sep 17, 2008 at 02:10:56PM +0100, Dougal Stanton wrote:
On Wed, Sep 17, 2008 at 1:17 PM, Manlio Perillo
[EMAIL PROTECTED] wrote:
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that does exactly this, and the code is portable; on
Windows it
Jefferson Heard ha scritto:
Multiprocessing is hardly a solution... I realize the Python
interpreter's fairly lightweight on its own, but the weight of a full
unix process plus the weight of the python interpreter in terms of
memory,
With copy on write some memory can be saved (if you
Dougal Stanton ha scritto:
On Wed, Sep 17, 2008 at 1:17 PM, Manlio Perillo
[EMAIL PROTECTED] wrote:
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that does exactly this, and the code is portable; on
Windows it uses O_TEMPORARY_FILE flag, on POSIX
No, it is not. Strings created by show are
always supposed to be readable by read, no
matter which system used 'show' and which
system is using 'read'.
Maurício
Rafael C. de Almeida a écrit :
Mauricio wrote:
Hi,
A small annoyance some users outside
english speaking countries usually
I just noticed that the Simply Efficient Functional Reactivity paper
has been updated since I last looked; I'll have to read it again now.
Is the library/code mentioned in the paper released or available
anywhere at this time? Conal has left tantalizing hints scattered in
various places...
Jython 2.5 is very close to release and its goal is to be a very
complete implementation, including such improbable things as ctypes.
You can indeed use the underlying threads of the JVM with Jython and
JRuby, but the native Python threads are prevented from running on
more than one processor by
Maybe. Doubles 'show' function always print something
after the decimal separator, so 'show [doubles]' is
easy to parse but difficult for human reading. It
would be nice to have a space between elements of a
shown list, though. It's an annoyance, but
internationalization is really great, I think
I'm happy to
finaly use a language where I can
use words of my language to name
variables, so I wonder if we could
also make that step.
Really?
There is a bunch of languages (like Glagol) that use words of Russian
language as keywords; AFAIK there aren't any Russian programmer who uses
them.
On Wed, 17 Sep 2008 15:28:35 +0100
John Lato [EMAIL PROTECTED] wrote:
I just noticed that the Simply Efficient Functional Reactivity paper
has been updated since I last looked; I'll have to read it again now.
Is the library/code mentioned in the paper released or available
anywhere at this
Hi Anatoly,
I made the decision to make herm an O(1) operation. This means you don't
have to pass transpose arguments to the multiplication routines. When you do,
for example:
let a = listMatrix (2,3) [1..6]
x = listVector 2 [1, -1]
in herm a * x
this gets implemented as a call to
Do you think 'read' (actually,
'readsPrec'?) could be made to also
read the international convention
(ie., read 1,5 would also work
besides read 1.5)? I'm happy to
finaly use a language where I can
use words of my language to name
variables, so I wonder if we could
also make that step.
That
As of today, show ((1,2)::(Float,Float))
would not produce that kind of output.
Dan Piponi a écrit :
Mauricio asked:
Do you think 'read' (actually,
'readsPrec'?) could be made to also
read the international convention
(ie., read 1,5 would also work
besides read 1.5)?
What would you hope the
Hi John,
We're working toward a library release. This summer has been more chaotic
for me than I expected. Meanwhile the current is as Robin mentioned below.
Not in a terribly usable form. You'll need ghc-6.9 for the vector-space
dependency (vector spaces, linear maps, and derivatives), since
Do you think 'read' (actually,
'readsPrec'?) could be made to also
read the international convention
(ie., read 1,5 would also work
besides read 1.5)? I'm happy to
finaly use a language where I can
use words of my language to name
variables, so I wonder if we could
also make that step.
The
manlio_perillo:
Hi.
After reading the chapter about IO in the Real Word Haskell book, I
have noted that there is no support for opening a temporary file that
will be automatically removed at program termination.
The Python tempfile module, as an example, implements a wrapper around
manlio_perillo:
Dougal Stanton ha scritto:
On Wed, Sep 17, 2008 at 1:17 PM, Manlio Perillo
[EMAIL PROTECTED] wrote:
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that does exactly this, and the code is portable; on
Windows it uses O_TEMPORARY_FILE
Given examples like (1,2,3) I don't see how comma could ever be used
instead of dot, unless you insist on whitespace around all commas.
And that doesn't look like the right way forward.
-- Lennart
On Wed, Sep 17, 2008 at 4:20 PM, Mauricio [EMAIL PROTECTED] wrote:
Do you think 'read'
If you type ghc-pkg describe pcre-light, does it list
/opt/local/lib under the library-dirs: field? If not, that's most
likely your problem. Try unregistering the library and reinstalling
with:
cabal install pcre-light --extra-include-dirs=/opt/local/include
But since GHC does not implement such a function, I was curious to
know why it don't even implement a function that make sure the
temporary file is removed.
Because it is two lines to write, so no one has yet proposed
it for the base library.
Map is 2 lines, but we have that as a
I want to use hdbc to connect my mysql test db. so I set up my
/etc/odbcinst.ini :
[MySQL]
Description = ODBC Driver for MySQL
Driver = /usr/lib/libmyodbc.so
Setup = /usr/lib/libodbcmyS.so
FileUsage = 1
and /etc/odbc.ini:
[test]
Description = MySQL database test
Do you think 'read' (actually,
'readsPrec'?) could be made to also
read the international convention
(ie., read 1,5 would also work
besides read 1.5)?
No, as read is really intended to be a language-level tool, not
something that you should expose to end users. For
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and the pretty-printed
versions are the same? For instance, is there
a file generated by GHC at the compilation
pipe that is always guaranteed to have the
same MD5 hash when it comes
On Wed, Sep 17, 2008 at 04:51:07PM +0100, Mitchell, Neil wrote:
But since GHC does not implement such a function, I was curious to
know why it don't even implement a function that make sure the
temporary file is removed.
Because it is two lines to write, so no one has yet
On Wed, 17 Sep 2008, Manlio Perillo wrote:
Jefferson Heard ha scritto:
the weight of a full unix process plus the weight of the python
interpreter in terms of memory,
With copy on write some memory can be saved (if you preload all the required
modules in the master process).
The kernel
I noticed that Wikipedia has listed a few text books on the topic:
http://en.wikipedia.org/wiki/Denotational_semantics#Textbooks
Any recommendations on which one might be a better read?
Thanks,
Daryoush
2008/9/16 Greg Meredith [EMAIL PROTECTED]:
Daryoush,
Hopefully, the other replies about
I made the decision to make herm an O(1) operation. This means you don't
have to pass transpose arguments to the multiplication routines. When you
do, for example:
let a = listMatrix (2,3) [1..6]
x = listVector 2 [1, -1]
in herm a * x
this gets implemented as a call to gemv with
On Wed, Sep 17, 2008 at 7:04 PM, Mauricio [EMAIL PROTECTED] wrote:
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and the pretty-printed
versions are the same? For instance, is there
a file generated by GHC at the compilation
On Wed, Sep 17, 2008 at 1:03 AM, Brandon S. Allbery KF8NH
[EMAIL PROTECTED] wrote:
On 2008 Sep 16, at 10:30, Mauricio wrote:
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and the pretty-printed
versions are the same? For
On 2008-09-17, Mauricio [EMAIL PROTECTED] wrote:
Localized reading should be somewhere else, perhaps related to Locales.
No! If we had that, string from a program would not
be readable by some program running in other machine,
or other locale. As, actually, you describe below.
Show and
On 2008-09-17, Arnar Birgisson [EMAIL PROTECTED] wrote:
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio Perillo [EMAIL PROTECTED] wrote:
http://www.heise-online.co.uk/open/Shuttleworth-Python-needs-to-focus-on-future--/news/111534
cloud computing, transactional memory and future
On 2008 Sep 17, at 8:17, Manlio Perillo wrote:
The Python tempfile module, as an example, implements a wrapper
around mkstemp function that does exactly this, and the code is
portable; on Windows it uses O_TEMPORARY_FILE flag, on POSIX systems
the file is unlink-ed as soon as it is created
On Wed, 2008-09-17 at 18:40 +, Aaron Denney wrote:
On 2008-09-17, Arnar Birgisson [EMAIL PROTECTED] wrote:
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio Perillo [EMAIL PROTECTED] wrote:
Daryoush,
The two chapters in the Handbook of Logic in Computer Science -- especially
the one http://www.cs.bham.ac.uk/%7Eaxj/pub/papers/handy1.pdf by Abramsky
and Jung -- are good. i noticed that Lloyd Allison wrote a book on
practical denotational semantics. i've never read it, but i was
Hi,
Changying Li wrote:
I want to use hdbc to connect my mysql test db. so I set up my
/etc/odbcinst.ini :
[MySQL]
Description = ODBC Driver for MySQL
Driver = /usr/lib/libmyodbc.so
Setup = /usr/lib/libodbcmyS.so
FileUsage = 1
and /etc/odbc.ini:
[test]
On 2008 Sep 17, at 14:17, Alfonso Acosta wrote:
On Wed, Sep 17, 2008 at 1:03 AM, Brandon S. Allbery KF8NH
[EMAIL PROTECTED] wrote:
On 2008 Sep 16, at 10:30, Mauricio wrote:
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and
On 2008 Sep 17, at 14:38, Aaron Denney wrote:
On 2008-09-17, Mauricio [EMAIL PROTECTED] wrote:
Localized reading should be somewhere else, perhaps related to
Locales.
No! If we had that, string from a program would not
be readable by some program running in other machine,
or other locale.
Hi,
I got your tutorial working. But when running it from ghci an exception
raises:
*** Exception: _local/interactive_state\current-00:
openBinaryFile: invalid argument (Invalid argument)
But I found a way to fix this: replace
runserver 5001
by
withProgName happs-tutorial $
David Roundy ha scritto:
[...]
In particular, the code Don quoted is incorrect depending on which
import statements are used. If we assume that the default is the
bracket available in Haskell 98, then it is definitely incorrect.
It also doesn't behave properly in the presence of signals or
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
On Wed, 2008-09-17 at 18:40 +, Aaron Denney wrote:
On 2008-09-17, Arnar Birgisson [EMAIL PROTECTED] wrote:
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio Perillo [EMAIL PROTECTED] wrote:
systems that don't use an existing user-space thread library (such as
Concurrent Haskell or libthread [1]) emulate user-space threads by
keeping a pool of processors and re-using them (e.g., IIUC Apache does
this).
Your response seems to be yet another argument that processes are too
On Wed, 2008-09-17 at 20:29 +, Aaron Denney wrote:
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
On Wed, 2008-09-17 at 18:40 +, Aaron Denney wrote:
On 2008-09-17, Arnar Birgisson [EMAIL PROTECTED] wrote:
Hi Manlio and others,
On Wed, Sep 17, 2008 at 14:58, Manlio
On 2008 Sep 17, at 16:44, Evan Laforge wrote:
The fast context switching part seems orthogonal to me. Why is it
that getting the OS involved for context switches kills the
performance? Is it that the ghc RTS can switch faster because it
knows more about the code it's running (i.e. the OS
On Wed, Sep 17, 2008 at 10:11:28PM +0200, Manlio Perillo wrote:
David Roundy ha scritto:
[...]
In particular, the code Don quoted is incorrect depending on which
import statements are used. If we assume that the default is the
bracket available in Haskell 98, then it is definitely incorrect.
On Wed, 2008-09-17 at 13:44 -0700, Evan Laforge wrote:
systems that don't use an existing user-space thread library (such as
Concurrent Haskell or libthread [1]) emulate user-space threads by
keeping a pool of processors and re-using them (e.g., IIUC Apache does
this).
Your response
Thomas Davie tom.davie at gmail.com writes:
In your application (id id) you create two instances of id, each of
which has type forall a. a - a, and each of which can be applied to a
different type. In this case, the left one gets applied to the type
(a - a) and the right one a, giving
Do you think 'read' (actually, 'readsPrec'?)
could be made to also read the international
convention (ie., read 1,5 would also work
besides read 1.5)?
(...)
IMAO, it's bloody well stupid to use commas for
either the decimal separator or the thousands
separator, as it has a well
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
In my mind pooling vs new-creation is only relevant to process vs
thread in the performance aspects.
Say what? This discussion is entirely about performance --- does
CPython actually have the ability to scale concurrent programs to
2008/9/16 Mauricio [EMAIL PROTECTED]:
Hi,
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and the pretty-printed
versions are the same? For instance, is there
a file generated by GHC at the compilation
pipe that is always
Hi Aaron,
On Wed, Sep 17, 2008 at 23:20, Aaron Denney [EMAIL PROTECTED] wrote:
I entered the discussion as which model is a workaround for the other --
someone said processes were a workaround for the lack of good threading
in e.g. standard CPython. I replied that most languages thread
jonathanccast:
The fact that people use thread-pools
I don't think people use thread-pools with Concurrent Haskell, or with
libthread.
Sure. A Chan with N worker forkIO threads taking jobs from a queue is a
useful idiom I've employed on occasion.
-- Don
On Wed, 2008-09-17 at 23:42 +0200, Arnar Birgisson wrote:
On Wed, Sep 17, 2008 at 23:20, Aaron Denney [EMAIL PROTECTED] wrote:
The central aspect in my mind is a default share-everything, or
default share-nothing.
[..snip...]
These are, in fact, process models. They are implemented on
Haskellians,
Is there an Ajax-Haskell framework? In case there are many, is there a
preferred one? Experiences people would like to share?
Best wishes,
--greg
--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105
+1 206.650.3740
On Wed, 2008-09-17 at 21:20 +, Aaron Denney wrote:
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
In my mind pooling vs new-creation is only relevant to process vs
thread in the performance aspects.
Say what? This discussion is entirely about performance --- does
CPython
Chaddaï Fouché a écrit :
2008/9/16 Mauricio [EMAIL PROTECTED]:
Hi,
I would like to write a Haskell pretty-printer,
using standard libraries for that. How can I
check if the original and the pretty-printed
versions are the same? For instance, is there
a file generated by GHC at the
On 2008-09-17, Brandon S. Allbery KF8NH [EMAIL PROTECTED] wrote:
On 2008 Sep 17, at 8:17, Manlio Perillo wrote:
The Python tempfile module, as an example, implements a wrapper
around mkstemp function that does exactly this, and the code is
portable; on Windows it uses O_TEMPORARY_FILE
On 2008-09-17, Arnar Birgisson [EMAIL PROTECTED] wrote:
Hi Aaron,
On Wed, Sep 17, 2008 at 23:20, Aaron Denney [EMAIL PROTECTED] wrote:
I entered the discussion as which model is a workaround for the other
-- someone said processes were a workaround for the lack of good
threading in e.g.
Jonathan Cast ha scritto:
[...]
Huh. I see multi-threading as a workaround for expensive processes,
which can explicitly use shared memory when that makes sense.
That breaks down when you want 1000s of threads. I'm not aware of any
program, on any system, that spawns a new process on each
Quoth Jonathan Cast [EMAIL PROTECTED]:
...
| Say what? This discussion is entirely about performance --- does
| CPython actually have the ability to scale concurrent programs to
| multiple processors?
Well, ostensibly the discussion also has something to do with Haskell.
On that premise, may I
Tony Finch ha scritto:
[...]
context switching times,
That's probabily the same as thread switching time.
Competent language-level concurrency support (as in Haskell and Erlang)
makes a context switch about as expensive as a function call, thousands of
times faster than an OS-level process
On 18 Sep 2008, at 3:20 am, Mauricio wrote:
Agree about the answer, not about the question. The
correct one would be is it possible to change haskell
syntax to support the international notation (not any
locally sensitive one) for decimal real numbers? Would
a change in 'read' be a good first
On 2008 Sep 17, at 18:20, Aaron Denney wrote:
On 2008-09-17, Brandon S. Allbery KF8NH [EMAIL PROTECTED] wrote:
On 2008 Sep 17, at 8:17, Manlio Perillo wrote:
The Python tempfile module, as an example, implements a wrapper
around mkstemp function that does exactly this, and the code is
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
On Wed, 2008-09-17 at 21:20 +, Aaron Denney wrote:
On 2008-09-17, Jonathan Cast [EMAIL PROTECTED] wrote:
In my mind pooling vs new-creation is only relevant to process vs
thread in the performance aspects.
Say what? This
What does Haskell have to say about cloud computing?
--
_jsn
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Bruce Eckel [EMAIL PROTECTED] wrote:
Manlio Perillo [EMAIL PROTECTED] wrote:
Multicore support is already supported in Python, if you
use multiprocessing, instead of multithreading.
This is one of the reasons for my other question on this list,
about whether you can solve all problems
jason.dusek:
What does Haskell have to say about cloud computing?
I'm not sure cloud computing is well-enough defined to say anything yet.
paradigm in which information is permanently stored in servers on
the Internet and cached temporarily on clients that include
desktops,
On Sun, Jul 27, 2008 at 07:23:14PM +0200, Adrian Neumann wrote:
Hello,
I think it'd be nice if the compiler could warn me if there are any
exceptions which I'm not catching, similar to checked exceptions in Java.
Does anyone know of a possibility to do that in Haskell?
He, I have
jason.dusek:
What does Haskell have to say about cloud computing?
If by 'cloud computing' you wish to discuss mapReduce then:
http://www.cs.vu.nl/~ralf/MapReduce/paper.pdf
Map reduce in Haskell, enjoy!
Tom
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Haskell-Cafe mailing list
It may be of interest that although Erlang has been doing
lightweight concurrency for 20 years,
- you can choose whether you want to use an SMP version that
has as many schedulers as there are cores (plus internal
locking as needed) or a non-SMP version with one scheduler
(and no
thanks for your reply.
I'm sure isql is ok for me:
[EMAIL PROTECTED] tapl-haskell] isql test
+---+
| Connected!|
| |
| sql-statement |
| help [tablename]
Don Stewart [EMAIL PROTECTED] wrote:
jason.dusek:
What does Haskell have to say about cloud computing?
I'm not sure cloud computing is well-enough defined to say
anything yet.
That is fair -- having something to say about cloud computing
is essentially having a grand vision. I only ask
On Sun, Sep 14, 2008 at 3:29 AM, John MacFarlane [EMAIL PROTECTED] wrote:
Some highlights of this release:
+ New GNU Texinfo writer (contributed by Peter Wang)
+ New OpenDocument XML writer (contributed by Andrea Rossato)
+ New ODT (OpenOffice document) writer
+ New MediaWiki markup writer
On Sat, 13 Sep 2008 21:06:21 -0700, Daryoush Mehrtash
[EMAIL PROTECTED] wrote:
I have a newbie question Does theorem proofs have a use for an
application? Take for example the IRC bot example (
http://www.haskell.org/haskellwiki/Roll_your_own_IRC_bot) listed below. Is
there any insight to
Better is this:
data MalformedAddressException = MalformedAddressException String
deriving (Show, Typeable)
throwDynIO x = throwIO (DynException $ toDyn x)
-- in inet_error
... throwDynIO (MalformedAddressException blah blah) ...
-- in HAppS-Server
... Exception.catchDyn (inet_addr uri)
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