I'm putting together a package consisting of 2 executables. Only one of
them is pure Haskell and thus buildable on all platforms, the other
relies on Windows API calls and can only be built on that platform. I
found the “if os(...)” conditional in the CABAL docs but I'm having
problems getting it
executable foo
main-is: bla
if !os(windows):
buildable: false
Unfortunately this gives rather unhelpful error messages when used
with flags, but it works well enough for now.
/ Thomas
On 4 mar 2008, at 09.10, Magnus Therning wrote:
I'm putting together a package consisting of 2
On Tue, 4 Mar 2008, Magnus Therning wrote:
I'm putting together a package consisting of 2 executables. Only one of
them is pure Haskell and thus buildable on all platforms, the other
relies on Windows API calls and can only be built on that platform. I
found the âif os(...)â conditional
On 3/4/08, Henning Thielemann [EMAIL PROTECTED] wrote:
On Tue, 4 Mar 2008, Magnus Therning wrote:
I'm putting together a package consisting of 2 executables. Only one of
them is pure Haskell and thus buildable on all platforms, the other
relies on Windows API calls and can only be built
On 4 mar 2008, at 10.58, Magnus Therning wrote:
Good point. Does CABAL 1.2 have support for multiple .cabal files
in the same directory? If not then I'm not too happy with this
solution.
No. Eventually, Cabal will support something like this, but it's
unlikely that Cabal 1.4 will.
On 3/4/08, Thomas Schilling [EMAIL PROTECTED] wrote:
executable foo
main-is: bla
if !os(windows):
buildable: false
Unfortunately this gives rather unhelpful error messages when used
with flags, but it works well enough for now.
/ Thomas
Hmmm, I don't seem to get this to work
Alan Carter wrote:
I've written up some reflections on my newbie experience together with
both versions, which might be helpful to people interested in
popularizing Haskell, at:
http://the-programmers-stone.com/2008/03/04/a-first-haskell-experience/
Thank you for writing this.
On the lack
On 4 mar 2008, at 11.37, Magnus Therning wrote:
On 3/4/08, Thomas Schilling [EMAIL PROTECTED] wrote:
executable foo
main-is: bla
if !os(windows):
buildable: false
Unfortunately this gives rather unhelpful error messages when used
with flags, but it works well enough for now.
/
Paul Johnson [EMAIL PROTECTED] writes:
I'm surprised you found the significant whitespace difficult.
I wonder if this has something to do with the editor one uses? I use
Emacs, and just keep hitting TAB, cycling through possible alignments,
until things align sensibly. I haven't really
On Tue, Mar 4, 2008 at 4:16 AM, Ketil Malde [EMAIL PROTECTED] wrote:
Paul Johnson [EMAIL PROTECTED] writes:
I'm surprised you found the significant whitespace difficult.
I wonder if this has something to do with the editor one uses? I use
Emacs, and just keep hitting TAB, cycling
In the Wiki article
http://haskell.org/haskellwiki/Comparison_chain
there is the piece
unzipunzip
which is improperly formatted.
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On 04/03/2008, Henning Thielemann [EMAIL PROTECTED] wrote:
In the Wiki article
http://haskell.org/haskellwiki/Comparison_chain
there is the piece
unzipunzip
which is improperly formatted.
I guess the wiki uses GeSHi, and it's because of a bug in the keyword
list. I reported
On 04/03/2008, Alan Carter [EMAIL PROTECTED] wrote:
http://the-programmers-stone.com/2008/03/04/a-first-haskell-experience/
That was an interesting read. Thanks for posting it. I also liked the
tale of the BBC ULA - it reminded me of a demo I saw once at an Acorn
show, where they had a RISC PC
On Fri, Feb 29, 2008 at 8:50 PM, Adam Langley [EMAIL PROTECTED] wrote:
I generally find that I'm wrapping sockets in the same functions a lot
and now I'm looking writings code which works with both Sockets and
SSL connections. So I wrote a module, presumptuously called
Network.Connection,
Hi,
I was trying to use wash to learn it. I am using ubuntu and I have
ghc6.6.1 installed on my system.
I have also installed the package libghc6-wash-dev
but in my code when i write
import WASH.CGI
it gives me following error
firstCGI.hs:5:7:
Could not find module `WASH.CGI':
On Tue, Mar 4, 2008 at 7:31 AM, Bjorn Bringert [EMAIL PROTECTED] wrote:
you may want to have a look at the socket abstraction used in the HTTP
package:
http://hackage.haskell.org/packages/archive/HTTP/3001.0.4/doc/html/Network-Stream.html
It would be great to get HTTPS support going!
Am Dienstag, 4. März 2008 16:10 schrieb Dougal Stanton:
[…]
There's a file called, IIRC, haskell.php with a large list of
keywords. Two of them, 'unzip' and 'unzip3' appear twice. Delete one
of each and it all works fine again.
Why do they appear at all? They are not keywords.
Best wishes,
On 04/03/2008, Luke Palmer [EMAIL PROTECTED] wrote:
On Tue, Mar 4, 2008 at 4:16 AM, Ketil Malde [EMAIL PROTECTED] wrote:
Paul Johnson [EMAIL PROTECTED] writes:
I'm surprised you found the significant whitespace difficult.
I wonder if this has something to do with the editor one
On Mon, Mar 3, 2008 at 5:41 PM, Ben Lippmeier [EMAIL PROTECTED] wrote:
Hi Justin.
try: ghc -c file -ddump-to-file -ddump-asm
Thanks, that does it. I also tried the -keep-s-files (possibly new to
6.8) and found it produces the same output.
Justin
On Tue, 4 Mar 2008, Wolfgang Jeltsch wrote:
Am Dienstag, 4. März 2008 16:10 schrieb Dougal Stanton:
[…]
There's a file called, IIRC, haskell.php with a large list of
keywords. Two of them, 'unzip' and 'unzip3' appear twice. Delete one
of each and it all works fine again.
Why do they
On 04/03/2008, Wolfgang Jeltsch [EMAIL PROTECTED] wrote:
Am Dienstag, 4. März 2008 16:10 schrieb Dougal Stanton:
[…]
There's a file called, IIRC, haskell.php with a large list of
keywords. Two of them, 'unzip' and 'unzip3' appear twice. Delete one
of each and it all works fine
Hi,
Is there an intuition that can be used to explain adjunctions to
functional programmers, even if the match isn't necessary 100% perfect
(like natural transformations and polymorphic functions?).
Thanks,
Edsko
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2008/3/4, Krzysztof Skrzętnicki [EMAIL PROTECTED]:
Hi
I was playing with various versions of sorting algorithms. I know it's very
easy to create flawed benchmark and I don't claim those are good ones.
However, it really seems strange to me, that sort - library function - is
actually the
Hi
-- Zadanie 9 - merge sort
mergeSort :: Ord a = [a] - [a]
mergeSort []= []
mergeSort [x] = [x]
mergeSort xs= let(l, r) = splitAt (length xs `quot` 2) xs
in mergeSortP (mergeSort l) (mergeSort r)
splitAt is not a particularly good way to split a list,
On Tue, 2008-03-04 at 17:16 +, Edsko de Vries wrote:
Hi,
Is there an intuition that can be used to explain adjunctions to
functional programmers, even if the match isn't necessary 100% perfect
(like natural transformations and polymorphic functions?).
Well when you pretend Hask is Set,
On Tue, Mar 04, 2008 at 11:58:38AM -0600, Derek Elkins wrote:
On Tue, 2008-03-04 at 17:16 +, Edsko de Vries wrote:
Hi,
Is there an intuition that can be used to explain adjunctions to
functional programmers, even if the match isn't necessary 100% perfect
(like natural
Well, we have at least one very useful example of adjunction. It's
called curry. See, if X is some arbitrary type, you can define
type F = (,X)
instance Functor F where
fmap f (a,x) = (fa,x)
type G = (-) X
instance Functor G where
fmap f h = \x - f (h x)
Now, we have the adjunction:
Well, we have at least one very useful example of adjunction. It's
called curry. See, if X is some arbitrary type, you can define
This adjunction is the one that makes a category cartesian closed.
Dominic.
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Haskell-Cafe mailing list
I'm looking at a production system running Perl Haskell in an
Apache environment and trying to get a handle on the system
architecture. Are there online resources anyone could recommend I start with?
Thanks in advance,
Marty
--
Marty Landman, Face 2 Interface Inc. 845-679-9387
Drupal
Edsko asked:
Is there an intuition that can be used to explain adjunctions to
functional programmers, even if the match isn't necessary 100% perfect
(like natural transformations and polymorphic functions?).
I think there's a catch because many interesting examples of
adjunctions involve
About the line length needed for Haskell programs, there was a discussion
about this some time ago, that could be regarded as a tutorial for
reducing indentation:
http://haskell.org/pipermail/haskell-cafe/2007-July/028787.html
As for the idle core you mention: I keep one core fully occupied
Not quite sure what you're looking for? Do you mean that you're looking at
the possibility of setting such a system up, or that you're looking at a
system that is already set up and trying to grok how it works? If the
latter, you might want to get a sense of how ghc manages its packages and
2008/3/4, Alan Carter [EMAIL PROTECTED]:
I've written up some reflections on my newbie experience together with
both versions, which might be helpful to people interested in
popularizing Haskell, at:
http://the-programmers-stone.com/2008/03/04/a-first-haskell-experience/
This is truly
Thanks for improved code. My point was to measure which programming patterns
are faster than the others so I can learn which ones I should use. However,
the thing that is really bad is the fact, that even oneliner qsort_i is
faster than library sort. Which is very different from what I've
2008/3/4, Krzysztof Skrzętnicki [EMAIL PROTECTED]:
Thanks for improved code. My point was to measure which programming patterns
are faster than the others so I can learn which ones I should use. However,
the thing that is really bad is the fact, that even oneliner qsort_i is
faster than
Vikrant [EMAIL PROTECTED] writes:
I was trying to use wash to learn it. I am using ubuntu and I have ghc6.6.1
installed on my system.
I have also installed the package libghc6-wash-dev
but in my code when i write
import WASH.CGI
it gives me following error
firstCGI.hs:5:7:
Could
I get it now, thanks. Also, I guess it is possible to find a better
algorithm for standard library sort.
Christopher Skrzętnicki
On Wed, Mar 5, 2008 at 12:04 AM, Chaddaï Fouché [EMAIL PROTECTED]
wrote:
2008/3/4, Krzysztof Skrzętnicki [EMAIL PROTECTED]:
Thanks for improved code. My point was
On Tue, 2008-03-04 at 19:01 +, Dominic Steinitz wrote:
Well, we have at least one very useful example of adjunction. It's
called curry. See, if X is some arbitrary type, you can define
This adjunction is the one that makes a category cartesian closed.
and the monad for it gives
That is seriously cool.
Congratulations Dmitry!
thomas.
2008/3/4, Dimitry Golubovsky [EMAIL PROTECTED]:
Hi,
I finally got the Yhc Web Service (web-based front end to the
compiler) running in public testing mode. There hasn't been any
documentation written, and Haddock stuff not brought
Well, I think it's really cool to be sitting in cafe exchanging some
сute facts from category theory we happen to know. Girls would
definitely like it.
On 5 Mar 2008, at 03:33, Derek Elkins wrote:
On Tue, 2008-03-04 at 19:01 +, Dominic Steinitz wrote:
Well, we have at least one very
On Tue, 2008-03-04 at 18:30 +, Edsko de Vries wrote:
On Tue, Mar 04, 2008 at 11:58:38AM -0600, Derek Elkins wrote:
On Tue, 2008-03-04 at 17:16 +, Edsko de Vries wrote:
Hi,
Is there an intuition that can be used to explain adjunctions to
functional programmers, even if the
Don Stewart dons at galois.com writes:
joseph.bruce:
Hi,
I have a Haskell library that I want to make available via FFI to C
programmers on my project team. I read this thread
(http://thread.gmane.org/gmane.comp.lang.haskell.cafe/21447) which had
some interesting ideas, but they
Thanks for the information. Now I could find mistake in what I was
importing.
'ghc-pkg describe WashNGo' told me correct exported module names.
On 05/03/2008, Ferenc Wagner [EMAIL PROTECTED] wrote:
Vikrant [EMAIL PROTECTED] writes:
I was trying to use wash to learn it. I am using ubuntu and
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