Hi all,
I think this is a well-known issue: it seems that there is no
character decoding performed on the values returned from the functions
in System.Directory (getDirectoryContents specifically). I could
manually do something like (utf8Decode . S8.pack), but that presumes
that the character
On Tue, Mar 29, 2011 at 11:52 PM, Michael Snoyman mich...@snoyman.comwrote:
Hi all,
I think this is a well-known issue: it seems that there is no
character decoding performed on the values returned from the functions
in System.Directory (getDirectoryContents specifically). I could
manually
On Wed, Mar 30, 2011 at 09:26, Jason Dagit dag...@gmail.com wrote:
On Tue, Mar 29, 2011 at 11:52 PM, Michael Snoyman mich...@snoyman.comwrote:
Hi all,
I think this is a well-known issue: it seems that there is no
character decoding performed on the values returned from the functions
in
On 30 March 2011 07:52, Michael Snoyman mich...@snoyman.com wrote:
I could
manually do something like (utf8Decode . S8.pack), but that presumes
that the character encoding on the system in question is UTF8. So two
questions:
Funnily enough I have been thinking about this quite hard recently,
On 30 March 2011 20:53, Max Bolingbroke batterseapo...@hotmail.com wrote:
On 30 March 2011 07:52, Michael Snoyman mich...@snoyman.com wrote:
I could
manually do something like (utf8Decode . S8.pack), but that presumes
that the character encoding on the system in question is UTF8. So two
On Wed, Mar 30, 2011 at 6:52 AM, Tad Doxsee tad.dox...@gmail.com wrote:
Greg,
Thanks for your help. Is there any significant difference between
using existential quantification
data ShapeD = forall s. ShapeC = ShapeD s
versus a GADT
data ShapeD where
ShapeD :: ShapeC s = s - ShapeD
On Wed, Mar 30, 2011 at 11:01, Alistair Bayley alist...@abayley.org wrote:
On 30 March 2011 20:53, Max Bolingbroke batterseapo...@hotmail.comwrote:
On 30 March 2011 07:52, Michael Snoyman mich...@snoyman.com wrote:
I could
manually do something like (utf8Decode . S8.pack), but that
Hi,
Steffen Schuldenzucker wrote:
data Shape = Shape {
draw :: String
copyTo :: Double - Double - Shape
}
Tad Doxsee wrote:
Suppose that the shape class has 100 methods and that 1000 fully
evaluated shapes are placed in a list.
The above solution would store the full method table
On 30 March 2011 10:20, Tako Schotanus t...@codejive.org wrote:
http://www.haskell.org/pipermail/libraries/2009-August/012493.html
I took from this discussion that FilePath really should be a pair of the
actual filename ByteString, and the printable String (decoded from the
ByteString, with
On Wed, Mar 30, 2011 at 6:52 AM, Tad Doxsee tad.dox...@gmail.com wrote:
Greg,
Thanks for your help. Is there any significant difference between
using existential quantification
data ShapeD = forall s. ShapeC = ShapeD s
versus a GADT
data ShapeD where
ShapeD :: ShapeC s = s - ShapeD
I had to use two Haskell Platforms at once in the Windows environment.
We use Haskell Platform 2011.1 as our main build platform. It provide
real benefits for code with GADTs so we ported most of our code there.
Right now we cannot switch back or it would be quite a regress.
We also have some
I'm pretty sure it's not possible under OS X, and just as sure that it
would be really nice, because some OS X libraries I'd like to link to
(JACK OS X in particular), don't provide static libraries.
On Mon, Mar 28, 2011 at 1:14 PM, Anakim Border akbor...@gmail.com wrote:
Hi,
I'm trying to
Haskell Platform 2010.1 with ghc 6.12.1 worked quite well.
Problem solved. ;)
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Hi Haskellers,
I was solving this problem from project euler to study haskell.
I came up whit the following solution and I was wondering if there is
a more optimized and concise solution.
fkSum :: Int - [Int] - Int
fkSum a [] = 0
fkSum a (b) = foldl (+) 0 (filter (\x - isMultiple x b) [1..a])
On Wednesday 30 March 2011 16:39:49, Gilberto Garcia wrote:
Hi Haskellers,
I was solving this problem from project euler to study haskell.
I came up whit the following solution and I was wondering if there is
a more optimized and concise solution.
Yes. There's a constant-time formula for
i had a very similar problem recently. thanks for posting the curl-
based solution.
if you are interested in a haskell-only version (at least without
curl), check out
https://github.com/marcmo/andSync/blob/master/test/Upload.hs
the most of the code came from cabal since they have code to upload
If I'm not wrong :
sum [1..n] = (n² + n)/2
2011/3/30 Daniel Fischer daniel.is.fisc...@googlemail.com
On Wednesday 30 March 2011 16:39:49, Gilberto Garcia wrote:
Hi Haskellers,
I was solving this problem from project euler to study haskell.
I came up whit the following solution and I
On Wed, Mar 30, 2011 at 9:26 AM, Jason Dagit dag...@gmail.com wrote:
On Tue, Mar 29, 2011 at 11:52 PM, Michael Snoyman mich...@snoyman.com
wrote:
Hi all,
I think this is a well-known issue: it seems that there is no
character decoding performed on the values returned from the functions
I started learning Haskell a little while ago. Although I am a novice I am
still in love with it.
I am physics major and primarily interested in Theoretical Physics and would
like to use Haskell in this area. So, I just know to what has been done in this
area, are there any libraries for
On 30 March 2011 18:07, Michael Snoyman mich...@snoyman.com wrote:
On Wed, Mar 30, 2011 at 9:26 AM, Jason Dagit dag...@gmail.com wrote:
On Tue, Mar 29, 2011 at 11:52 PM, Michael Snoyman mich...@snoyman.com
wrote:
Hi all,
I think this is a well-known issue: it seems that there is no
Hi everyone !
I'm having a problem in GHCi when loading modules relying on the
base-unicode-symbols package. My prompt gives me the following
message:
ghci $
GHCi, version 7.0.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp
Hi all,
I'm playing around a bit with arrows (more specifically, something
like a CPS style streamprocessor as described in Generalising Monads
to Arrows by John Hughes).
A part of my program takes inputs/signals from 2 sources.
The sources don't produce output at the same rate, and this part is
On Wed, Mar 30, 2011 at 10:37:47PM +0200, John Obbele wrote:
I'm having a problem in GHCi when loading modules relying on the
base-unicode-symbols package. My prompt gives me the following
message:
ghci $
Loading package base-unicode-symbols-0.2.1.2 ... linking ... interactive:
So loop really doesn't seem to help here, but I couldn't find another
way either to feed outputs back into the system.
What I need is:
Either A B ~ Either C B - A ~ C
Does such a thing exist?
At this point you don't really have enough structure to define such a
feedback loop. Since you have
Hello,
To access a haskell type from C code, do we have to make this type instance
of Storable (and so to also define an homomorph structure on the C side), or
does FFI specifies some C function to enable C code to access the fields, or
even some GHC-specific functions? (Even if I'd prefer a
On Wed, Mar 30, 2011 at 5:27 PM, Yves Parès limestr...@gmail.com wrote:
Hello,
To access a haskell type from C code, do we have to make this type instance
of Storable (and so to also define an homomorph structure on the C side), or
does FFI specifies some C function to enable C code to access
I'd also like to know of any Haskell programs for
theoretical/computational physics.
H!
Maybe converting such programs to Haskell.
On Wed, Mar 30, 2011 at 11:23 AM, Azeem -ul-Hasan aze...@live.com wrote:
I started learning Haskell a little while ago. Although I am a novice I am
still in
I can reproduce the problem on my system with GHC-7.0.3.
The flag old-base is meant for base libraries before 3.0.3.1 which
didn't export a Control.Category module. It looks like I accidentally
inverted the logic of the flag. What is weird is that is still builds
okay on my system. I would expect
Hello Michael, hello fellow Haskellers,
there seems to be a space leak in either 'pool', 'persistent' or
'persistent-sqlite'. From the behaviour I suspect the bug to be in
'pool'. When I run a transaction in an infinite loop, my program keeps
eating more and more memory, even if the transaction
Welcome to issue 175 of the HWN, a newsletter covering developments in
the [1]Haskell community. This release covers the week of March 20 -
26.
You can find the HTML version at: http://bit.ly/gs9Rr8
Announcements
Wren Ng Thornton [2]announced the release of unix-bytestring:
On Wednesday, March 30, 2011 12:18:48 PM UTC-7, Bas van Dijk wrote:
It would also be great to have a package which combines the proper
encoding/decoding of filepaths of the system-filepath package with the
type-safety of the pathtype package:
http://hackage.haskell.org/package/pathtype
Does
On Wednesday, March 30, 2011 9:07:45 AM UTC-7, Michael Snoyman wrote:
Thanks to you (and everyone else) for the informative responses. For
now, I've simply hard-coded in UTF-8 encoding for all non-Windows
systems. I'm not sure how this will play with OSes besides Windows and
Linux (especially
On Wed, Mar 30, 2011 at 2:39 PM, Gilberto Garcia giba@gmail.com wrote:
fkSum :: Int - [Int] - Int
fkSum a [] = 0
fkSum a (b) = foldl (+) 0 (filter (\x - isMultiple x b) [1..a])
Daniel Fischer and Yves Parès gave you good suggestions about
implementing a different, better algorithm for you
On 31 March 2011 14:51, John Millikin jmilli...@gmail.com wrote:
Linux, OSX, and (probably?) FreeBSD use UTF8.
For Linux, doesn't it depend upon the locale rather than forcing UTF-8?
--
Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com
IvanMiljenovic.wordpress.com
Thank you very much for the suggestions.
giba
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On Wed, Mar 30, 2011 at 21:07, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
On 31 March 2011 14:51, John Millikin jmilli...@gmail.com wrote:
Linux, OSX, and (probably?) FreeBSD use UTF8.
For Linux, doesn't it depend upon the locale rather than forcing UTF-8?
In theory, yes.
On Thu, Mar 31, 2011 at 1:50 AM, KC kc1...@gmail.com wrote:
I'd also like to know of any Haskell programs for
theoretical/computational physics.
H!
Maybe converting such programs to Haskell.
On Wed, Mar 30, 2011 at 11:23 AM, Azeem -ul-Hasan aze...@live.com wrote:
I started learning
31.03.2011 08:57, Mihai Maruseac пишет:
On Thu, Mar 31, 2011 at 1:50 AM, KCkc1...@gmail.com wrote:
I'd also like to know of any Haskell programs for
theoretical/computational physics.
H!
Maybe converting such programs to Haskell.
On Wed, Mar 30, 2011 at 11:23 AM, Azeem
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