* Andrea Vezzosi sanzhi...@gmail.com [2012-09-05 03:13:56+0200]
I've pushed the discussed changes to the repo[1], it'd be good if you
(and other users) could test them before they get to hackage.
[1] darcs get http://patch-tag.com/r/Saizan/syb-with-class/
I confirm that it fixed my problem.
I've pushed the discussed changes to the repo[1], it'd be good if you
(and other users) could test them before they get to hackage.
[1] darcs get http://patch-tag.com/r/Saizan/syb-with-class/
-- Andrea
___
Haskell-Cafe mailing list
There's a bug in syb-with-class reported by Alexey Rodriguez Yakushev in
2008 [1]. I can confirm that the bug is still there (syb-with-class-0.6.1.3,
ghc 7.4.1).
[1]: http://www.haskell.org/pipermail/haskell-cafe/2008-March/041179.html
Here's an even simpler test case:
{-# LANGUAGE
On Mon, Sep 3, 2012 at 12:00 PM, Roman Cheplyaka r...@ro-che.info wrote:
There's a bug in syb-with-class reported by Alexey Rodriguez Yakushev in
2008 [1]. I can confirm that the bug is still there (syb-with-class-0.6.1.3,
ghc 7.4.1).
[1]:
* Andrea Vezzosi sanzhi...@gmail.com [2012-09-03 12:50:03+0200]
On Mon, Sep 3, 2012 at 12:00 PM, Roman Cheplyaka r...@ro-che.info wrote:
There's a bug in syb-with-class reported by Alexey Rodriguez Yakushev in
2008 [1]. I can confirm that the bug is still there (syb-with-class-0.6.1.3,
ghc
On Mon, Sep 3, 2012 at 2:53 PM, Roman Cheplyaka r...@ro-che.info wrote:
* Andrea Vezzosi sanzhi...@gmail.com [2012-09-03 12:50:03+0200]
[...]
This is pretty similar to what ended up being a ghc bug, fixed in 7.0 though:
http://hackage.haskell.org/trac/ghc/ticket/3731
The difference between
I found the solution to this problem: for both libraries, I had to wrap
calls in 'withRTSSignalsBlocked' from HDBC-mysql.
On 16 June 2012 00:32, William Shackleton w.shackle...@gmail.com wrote:
Hi
I'm having issues with HDBC when connecting to a remote MySQL server -
certain queries cause
Hi
I'm having issues with HDBC when connecting to a remote MySQL server -
certain queries cause the DB connection to be lost. The following program
demonstrates this:
import Database.HDBC
import Database.HDBC.ODBC
main = do
conn - connectODBC DSN=owlro
putStrLn Connected
I just pulled the latest version of HList :
darcs clone http://code.haskell.org/HList
I compiled it with GHC 7.2.1 and I am still running into the same issue the
makeLabels function:
runQ (makeLabels [test1,test2]) = putStrLn . pprint
data Foo_0 deriving (Data.Typeable.Internal.Typeable)
foo_1
I also have the same issue with OOHaskell after pulling from
http://code.haskell.org/OOHaskell. After loading GHCI I did:
:l ../samples/OCamlTutorial.hs
../samples/OCamlTutorial.hs:97:3:
Multiple declarations of `foo'
Declared at: ../samples/OCamlTutorial.hs:53:1
I have verified that the issue with the makeLabels function goes away if
I install 7.0.4. I got an extremely large error (~ 5000 lines) when loading
OCamlTutorial.hs. When I've parsed through it, I'll post back. Sorry for
the confusion.
-deech
On Fri, Nov 11, 2011 at 1:33 PM, aditya siram
I have verified that the issue with the makeLabels function goes away if
I install 7.0.4.
I'm glad to hear that. GHC 7.0.4 has updated Template Haskell in
backward-incopatible ways.
I got an extremely large error (~ 5000 lines) when loading
OCamlTutorial.hs.
Quite likely the reason was
Thanks for updating the Cabal file. The reason I commented out the
Data.HList.TypeEqO was because I couldn't find it. I grepped the HList
source tree for it and I found references to it only in the following
places:
./Data/HList/RecordD.hs:import Data.HList.TypeEqO
The reason I commented out the Data.HList.TypeEqO was because I
couldn't find it.
My apologies! It turns out I have forgotten to 'darcs add' it. It is
committed now:
http://code.haskell.org/HList/Data/HList/TypeEqO.hs
___
Haskell-Cafe
Awesome! The samples now work. Thanks so much for your help.
-deech
On Fri, Nov 11, 2011 at 11:14 PM, o...@okmij.org wrote:
The reason I commented out the Data.HList.TypeEqO was because I
couldn't find it.
My apologies! It turns out I have forgotten to 'darcs add' it. It is
committed
Hi all,
I am exploring OOHaskell and ran into some compilation issues with some of
the samples. I hope this is the right place to report it.
For example OCamlTutorial.hs generates the following error:
../samples/OCamlTutorial.hs:98:3:
Multiple declarations of `foo'
Declared at:
I believe this is the case of OOHaskell gotten a bit out of sync with
HList and GHC. Please use the latest code bases
http://code.haskell.org/HList
http://code.haskell.org/OOHaskell
OCamlTutorial and all other OOHaskell code should work (with GHC
7.0.4).
Its a bug in haskell-src-meta. I just reported it:
https://github.com/benmachine/haskell-src-meta/issues/8
Regards,
Jonas
On 1 September 2011 03:19, bob zhang bobzhang1...@gmail.com wrote:
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
(IntegerL 4)))
where's GHC.Unit.(,) ?
Many thanks
best, bob
___
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Haskell-Cafe@haskell.org
On 1 September 2011 11:19, bob zhang bobzhang1...@gmail.com wrote:
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
(IntegerL 4)))
where's GHC.Unit.(,) ?
GHC.Unit (like all GHC.* modules) is an internal module used by GHC to
implement base,
于 11-8-31 下午10:01, Ivan Lazar Miljenovic 写道:
On 1 September 2011 11:19, bob zhangbobzhang1...@gmail.com wrote:
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
(IntegerL 4)))
where's GHC.Unit.(,) ?
GHC.Unit (like all GHC.* modules) is an internal
于 11-8-31 下午10:01, Ivan Lazar Miljenovic 写道:
On 1 September 2011 11:19, bob zhangbobzhang1...@gmail.com wrote:
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
(IntegerL 4)))
where's GHC.Unit.(,) ?
GHC.Unit (like all GHC.* modules) is an internal
On 1 September 2011 12:29, bob zhang bobzhang1...@gmail.com wrote:
于 11-8-31 下午10:01, Ivan Lazar Miljenovic 写道:
On 1 September 2011 11:19, bob zhangbobzhang1...@gmail.com wrote:
Hi, all
parseExp (,) 3 4 =
Right (AppE (AppE (ConE GHC.Unit.(,)) (LitE (IntegerL 3))) (LitE
(IntegerL 4)))
于 11-8-31 下午10:35, Ivan Lazar Miljenovic 写道:
May I ask though why you're trying to use (,) as an explicit
constructor in a quasi-quotation?
Thanks for your reply. I just generated some code
this way, and it does not work.
this style is common in applicative functor, right?
Best, bob
And after a lot more sleep and some digging, it turns out that the
build script was forcing GCC to build the .o file as a 32 bit binary,
and thus causing the magic mismatch.
On Mon, May 30, 2011 at 11:20 PM, Edward Amsden eca7...@cs.rit.edu wrote:
When building the Haskell Objective C bindings
When building the Haskell Objective C bindings tool from
http://code.google.com/p/hoc
Using GHC 7.0.3 for Haskell Platform 2011.2.0.1, OS X 64 bit
HOC compiles HOC_cbits.o before trying to build it into the rest of
the program (I don't say link because this came up while trying to
compile:
[18
Hey all,
While trying to get a commit pushed for Yesod[1], Alexander Dunlap
pointed out one of his programs didn't work with the new code. After
some investigation, I was able to reproduce the bug with the following
code snippet:
{-# LANGUAGE TypeFamilies #-}
data family Foo a
data Bar = Bar
Hmm, strange. I have a project that uses data families with dozens of
constructors per clause/instantiation of the type function. I use GADT
syntax to define them though as they also refine one of the parameter type
variables. Never had any issues with it, although I haven't tried building
that
-
| From: haskell-cafe-boun...@haskell.org
[mailto:haskell-cafe-boun...@haskell.org] On
| Behalf Of Michael Snoyman
| Sent: 14 November 2010 19:16
| To: Haskell Cafe
| Subject: [Haskell-cafe] Curious data family bug
|
| Hey all,
|
| While trying to get a commit pushed for Yesod[1], Alexander Dunlap
] On
| Behalf Of Michael Snoyman
| Sent: 14 November 2010 19:16
| To: Haskell Cafe
| Subject: [Haskell-cafe] Curious data family bug
|
| Hey all,
|
| While trying to get a commit pushed for Yesod[1], Alexander Dunlap
| pointed out one of his programs didn't work with the new code. After
| some
On the prompting of napping, I humbly submit the following code to haskell-cafe:
ezy...@javelin:~/Dev/haskell/generic-typeclass$ cat Bar.hs
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FlexibleContexts #-}
data Foo b = Foo
class
Hello,
On Jul 13, 2010, at 9:15 AM, Andy Stewart wrote:
Please report any bug of gtk2hs-0.11.0, we will fix it before release
gtk2hs-0.11.1
I have just installed the new Haskell Platform under Mac OS X 10.5.
With the previous installation of GHC 6.10.4 I managed to install
gtk2hs
Sebastian Fischer s...@informatik.uni-kiel.de writes:
Hello,
On Jul 13, 2010, at 9:15 AM, Andy Stewart wrote:
Please report any bug of gtk2hs-0.11.0, we will fix it before release
gtk2hs-0.11.1
I have just installed the new Haskell Platform under Mac OS X 10.5. With the
previous
On Jul 26, 2010, at 6:59 PM, Andy Stewart wrote:
cabal install gtk
fails with the message
Configuring gtk-0.11.0...
setup: ./Graphics/UI/Gtk/General/IconTheme.chs: invalid argument
cabal: Error: some packages failed to install:
gtk-0.11.0 failed during the building phase. The
Err... where is pixbufFromImageSurface [1] now? I have an old program
that draws using cairo an static diagram to a pixbuf which then
becomes the backend of an Image. If pixbufFromImageSurface got
deprecated, what's a better solution?
[1]
On Saturday 17 July 2010 05:39:00, gat...@landcroft.co.uk wrote:
On Sat 17/07/10 04:17 , Alexander Solla a...@2piix.com sent:
Why are you performing unsafe IO actions? They don't play nice
with laziness.
OK, fair cop, but without the unsafe IO action, it still misbehaves.
http://hpaste.org/fastcgi/hpaste.fcgi/view?id=27631
The comments in the code explain the problem.
If .Lazy be removed from the code (occurs three times), i.e., the
code is changed to strict byte strings, it works as expected.
Michael Mounteney.
___
On Sat 17/07/10 04:17 , Alexander Solla a...@2piix.com sent:
Why are you performing unsafe IO actions? They don't play nice
with laziness.
OK, fair cop, but without the unsafe IO action, it still misbehaves.
http://hpaste.org/fastcgi/hpaste.fcgi/view?id=27650
Michael.
You should probably CC the maintainer of the regex package.
Cheers,
--
Felipe.
___
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
Hi all,
We plan to release bug fix version : gtk2hs-0.11.1
Please report any bug of gtk2hs-0.11.0, we will fix it before release
gtk2hs-0.11.1
We plan to add many new APIs in gtk2hs-0.12.0,
so gtk2hs-0.11.1 will be the last stable version with current APIs.
Thanks for your help!
-- Andy
I started with the following:
{-# LANGUAGE TypeFamilies #-}
class DoC a where
type A2 a
op :: a - A2 a
data Con x = InCon (x (Con x))
type FCon x = x (Con x)
foldDoC :: Functor f = (f a - a) - Con f - a
foldDoC f (InCon t) = f (fmap (foldDoC f) t)
doCon :: (DoC (FCon x)) = Con x -
Hello,
In one of my example programs I have a strange behaviour: it is a very
simple taskpool using STM; in pseudocode it's
1. generate data structures
2. initialize data structures
3. fork threads
4. wait (using STM) until the pool is empty and all threads are finished
5. print a final message
is it possibly something related to how the gc interacts with that many
threads in that context?
On Sat, Mar 13, 2010 at 11:36 AM, Michael Lesniak mlesn...@uni-kassel.dewrote:
Hello,
In one of my example programs I have a strange behaviour: it is a very
simple taskpool using STM; in
Am Samstag 13 März 2010 17:36:49 schrieb Michael Lesniak:
Hello,
In one of my example programs I have a strange behaviour: it is a very
simple taskpool using STM; in pseudocode it's
1. generate data structures
2. initialize data structures
3. fork threads
4. wait (using STM) until the
Hi,
is it possibly something related to how the gc interacts with that many
threads in that context?
Would be one possibility, but it even hangs with just a few threads
(e.g. 2); it just takes more iterations until it hangs.
Cheers,
Michael
___
Hello,
For the attached programme, in the task-getting,
else if Set.null work
then return Nothing
else retry
doesn't really make sense, when the channel is empty, we could return
Nothing right away. I suppose, in the real programme, some
2010/1/17 Mark Lentczner ma...@glyphic.com:
AHA!
Note that after running cabal haddock we re-build all of our .hi and
.o files EXCEPT ./dist/build/HSsyb-with-class-0.6.1.o
And now, since TH generates random symbols, we have symbols in the new
.hi files that aren't in the old (and only)
=== Short Story ===
If I build syb-with-class-0.6 via cabal (cabal configure; cabal build) in the
unpacked tar directory, it builds correctly.
If I build it via cabal install (either from the unpacked directory, or by
letting cabal fetch it), then the resulting package is corrupted. In
This sounds similar to an issue I was seeing over here:
http://groups.google.com/group/happs/msg/04ecfe4fd6285c0d
The module being compiled also includes TH top-level statements, and
was only reproducible when building from Cabal.
Here's another occurance on a different platform:
Indeed - all those look exactly like the same issue.
And the workaround:
http://groups.google.com/group/happs/msg/1e7761d421b0e5eb
That doesn't fix the real issue: It causes happstack-data to not need the thing
that is built wrong in syb-with-class. I believe my work-around (build
2010/1/16 Mark Lentczner ma...@glyphic.com:
Indeed - all those look exactly like the same issue.
And the workaround:
http://groups.google.com/group/happs/msg/1e7761d421b0e5eb
That doesn't fix the real issue: It causes happstack-data to not need the
thing that is built wrong in
AHA!
Note that after running cabal haddock we re-build all of our .hi and
.o files EXCEPT ./dist/build/HSsyb-with-class-0.6.1.o
And now, since TH generates random symbols, we have symbols in the new
.hi files that aren't in the old (and only) HSsyb-with-class-0.6.1.o.
So, this leaves us
Help us weed the GHC ticket database, and get a warm fuzzy feeling from
contributing to Haskell core technology!
There are currently ~750 tickets against GHC. Many of them have not
been looked at in months or years. Often when I go through old tickets
I find easy targets: bugs that have
Cool, I'm in! (Also inspired by [1]this post by Erik de Castro Lopo)
It would be nice to keep track of participants somewhere, so that each
of us knows he's not alone :)
1. http://www.mega-nerd.com/erikd/Blog/CodeHacking/DDC/hacking_ddc.html
* Simon Marlow marlo...@gmail.com [2009-11-16
Hello,
I'm also interested and find Roman's idea about a wiki-page for
tracking motivating.
So the idea we have is this: do an incremental sweep of the whole
database, starting from the oldest tickets. Check each one, and try to
make some progress on it. If we get enough momentum going we
Sorry.I defined a function :
*GHCi, version 6.10.3: http://www.haskell.org/ghc/ :? for help*
*Loading package ghc-prim ... linking ... done.*
*Loading package integer ... linking ... done.*
*Loading package base ... linking ... done.*
*Prelude sqrt $ 3 + 4 + 9*
*4.0*
*Prelude let f $ x = f x*
On Sunday 26 July 2009 10:54:53 pm Linker wrote:
Sorry.I defined a function :
*GHCi, version 6.10.3: http://www.haskell.org/ghc/ :? for help*
*Loading package ghc-prim ... linking ... done.*
*Loading package integer ... linking ... done.*
*Loading package base ... linking ... done.*
For days I'm fighting against a weird bug.
My Haskell code calls into a C function residing in a DLL (I'm on Windows,
the DLL is generated using Visual Studio). This C function computes a
floating point expression. However, the floating point result is incorrect.
I think I found the source of the
Interesting. This could be the cause of a weird floating point bug
that has been showing up in the ghc testsuite recently, specifically
affecting MacOS/Intel (but not MacOS/ppc).
http://darcs.haskell.org/testsuite/tests/ghc-regress/lib/Numeric/num009.hs
That test compares the result of
Well this situation can indeed not occur on PowerPCs since these CPUs just
have floating point registers, not some weird dual stack sometimes /
registers sometimes architecture.
But in my case the bug is consistent, not from time to time.
So I'll try to reduce this to a small reproducible test
What floating point model is your DLL compiled with? There are a variety of
different options here with regards to optimizations, and I don't know about
the specific assembly that each option produces, but I know there are
options like Strict, Fast, or Precise, and maybe when you do something
I tried both precise and fast, but that did not help. Compiling to SSE2
fixed it, since that does not use a floating point stack I guess.
I'm preparing a repro test case, but it is tricky since removing code tends
to change the optimizations and then the bug does not occur.
Does anybody know what
On Fri, Apr 03, 2009 at 10:10:17PM +0200, Peter Verswyvelen wrote:
I tried both precise and fast, but that did not help. Compiling to SSE2
fixed it, since that does not use a floating point stack I guess.
You didn't say what version of GHC you are using, but it sounds like
this might already be
Ouch, what a waste of time on my side :-(
This bugfix is not mentioned in the notable bug fixes
herehttp://haskell.org/ghc/docs/6.10.2/html/users_guide/release-6-10-2.html
Since this is such a severe bug, I would recommend listing it :)
Anyway, I have a very small repro test case now. Will
Okay, I can confirm the bug is fixed.
It's insane this bug did not cause any more problems. Every call into every
C function that uses floating point could have been affected (OpenGL, BLAS,
etc)
On Fri, Apr 3, 2009 at 10:47 PM, Peter Verswyvelen bugf...@gmail.comwrote:
Ouch, what a waste of
Hello people,
I've recently tried this:
$ uname -smpr
Linux 2.6.28-ARCH x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
$ ghci
GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package
On Wed, Jan 28, 2009 at 7:56 AM, Juraj Hercek juhe_hask...@hck.sk wrote:
Hello people,
I've recently tried this:
$ uname -smpr
Linux 2.6.28-ARCH x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
$ ghci
GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ...
On Wed, 2009-01-28 at 16:56 +0100, Juraj Hercek wrote:
Hello people,
I've recently tried this:
$ uname -smpr
Linux 2.6.28-ARCH x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
$ ghci
GHCi, version 6.10.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ...
The issue here is not whether or not the code is pretty or elegant, but
whether or not I get correct execution of what I have, which is a correct
statement of what I want (even if not the prettiest or most lint free),
and I don't. There are lots of ways to work around the problem, but that
Exactly. The best you can do is try to reduce your code to a tiny
fragment that still exposes the problem, and report it as a bug.
On Tue, Jan 6, 2009 at 4:52 PM, Murray Gross mgros...@verizon.net wrote:
The issue here is not whether or not the code is pretty or elegant, but
whether or not I
Hi Murray,
The issue here is not whether or not the code is pretty or elegant, but
whether or not I get correct execution of what I have, which is a correct
statement of what I want (even if not the prettiest or most lint free), and
I don't.
Sorry, I was merely responding to someone else
My last note had an error in it, and the code originally sent to the list
should be ignored. I have attached the current version of the code, and
here is some further information (the behavior is different, by the way,
but still apparently wrong).
I have attached the current version of the
If you believe this is a compiler bug, please report it:
http://hackage.haskell.org/trac/ghc/newticket?type=bug
mgross21:
My last note had an error in it, and the code originally sent to the list
should be ignored. I have attached the current version of the code, and
here is some
Am Dienstag, 6. Januar 2009 18:32 schrieb Murray Gross:
My last note had an error in it, and the code originally sent to the list
should be ignored. I have attached the current version of the code, and
here is some further information (the behavior is different, by the way,
but still
On Tue, 6 Jan 2009, Daniel Fischer wrote:
Could you elaborate? I couldn't find an inconsistency using your previous
code, it behaved as it should (until I ^C-ed it).
In several versions of the code, now unfortunately lost because of a crash
on a power failure (which is extremely rare
When using any of -O, -O1, -O2 with the Debian binary build of GHC 6.6,
trace shows that the expression
if (lr ll) then False else True
is (at least partially) evaluated, but the value returned is always True,
even though trace reports that (lr ll) is True. When I use only the
On Mon, Jan 5, 2009 at 4:34 PM, Murray Gross mgros...@verizon.net wrote:
When using any of -O, -O1, -O2 with the Debian binary build of GHC 6.6,
trace shows that the expression
if (lr ll) then False else True
is (at least partially) evaluated, but the value returned is always
No unsafe perform (except what may be hidden in trace), nothing, fancy, no
gimmicks (very pedestrian, even heavy-handed) code. Complete code is
attached (I don't have smaller snippets, because I just discovered the
problem).
Best,
Murray Gross
On Mon, 5 Jan 2009, Luke Palmer wrote:
On Mon, 2008-12-15 at 08:17 -0800, John MacFarlane wrote:
I noticed a difference in how hang works between pretty-1.0.0.0 and
pretty-1.0.1.0. I think it's a bug. If this isn't the right place to
report it, please let me know where I should. (Maintainer is listed
as librar...@haskell.org, but
On Thu, 2008-12-18 at 13:27 +, Neil Mitchell wrote:
Hi Duncan,
I'd just like to advertise the fact that as of Cabal-1.6 you can put a
bug-reports field in your .cabal file and it will be displayed by
hackage.
Fantastic. Is it backwards compatible? i.e. if I add such a field,
will
-
| From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
| Alexey Rodriguez Yakushev
| Sent: 31 March 2008 14:47
| To: haskell-cafe
| Cc: [EMAIL PROTECTED]; Ralf Laemmel
| Subject: [Haskell-cafe] SYB with class: Bug in Derive.hs module
|
| Hi people (and Ralf and Alex),
|
| I found a bug
On Wed, 27 Aug 2008 16:22:56 +0900, Benjamin L.Russell
[EMAIL PROTECTED] wrote:
Sorry, what I really meant was not to update the reference to a.out
to be changed to main.exe, but to change the following line:
This produces a new executable, ./a.out (a.out.exe on windows), which you can
run like
On 2008 Aug 27, at 3:28, Benjamin L.Russell wrote:
On Wed, 27 Aug 2008 16:22:56 +0900, Benjamin L.Russell
[EMAIL PROTECTED] wrote:
Sorry, what I really meant was not to update the reference to a.out
to be changed to main.exe, but to change the following line:
This produces a new executable,
Hello,
GHC is happy to compile this code:
f x = (`head` x, ())
but Hugs does not like it, and Section 3.5 of the Haskell Report does
not give any obvious indications that it is valid. Numerous people
have suggested that some additional parens are required:
f x = ((`head` x), ())
Is this GHC
How I solve this issue when call readXml:
in score-partwise, In a sequence:
in part, In a sequence:
in measure, Too many elements inside measure at
file ../../../parsers/elite2.xml at line 75 col 15
Found excess:
So, your XML document contains a score-partwise, which contains a
Hello
I'm using HaXml library to handle XML.
How I solve this issue when call readXml:
in score-partwise, In a sequence:
in part, In a sequence:
in measure, Too many elements inside measure at
file ../../../parsers/elite2.xml at line 75 col 15
Found excess:
Done.
I don't
On Mon, Mar 31, 2008 at 03:47:04PM +0200, Alexey Rodriguez Yakushev wrote:
The Data instance that Derive generates is as follows:
instance (Data ctx a,
Data ctx (BinTree a),
Sat (ctx (BinTree a))) =
Data ctx (BinTree a) where
Hi people (and Ralf and Alex),
I found a bug in the SYB with class library when trying to implement
generic equality. I am hoping that someone in the Cafe (maybe Ralf)
can confirm it is a bug, or maybe show me that I am doing something
wrong.
I am using the Scrap your boilerplate with
as Marc pointed out, there was a problem with my javascript use
that showed up as an event error in firefox. Miguel has suggested
how to remove that issue. i've also added commands to set the
colour explicitly, and to move to the origin after translation, so that
firefox now draws whole
Hi Claus
Ising ghc-6.6 and Opera 9.20 i thought that everything would work until
I tried the page in Firefox 2.0.0.1
Opera:
Those maroon rectangles in all four corners appear, alse the text
x/y: ... is shown when clicking.
But the drawing doesn't appear, does'n show any errors within the Error
DisTract is a Distributed Bug Tracker.
We're all now familiar with working with distributed software control
systems, such as Monotone, Git, Darcs, Mercurial and others, but bug
trackers still seem to be fully stuck in the centralised model:
Bugzilla and Trac both have single centralised servers.
Nice. You might find Bugs Everywhere
http://www.panoramicfeedback.com/opensource/ interesting for comparison.
b
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On Sun, 20 Aug 2006, Neil Mitchell wrote:
Hi,
I want to generate documentation for the base libraries, so I darcs
get the base libraries, and a very basic (the sample default)
Setup.hs, and try:
runhaskell Setup configure
runhaskell Setup build
Pretty much no luck, but I'll leave
Hi
haddock.exe: Main.all_subs_of_qname: unexpected unqual'd name:IOMode
Sometimes such an error is a Haddock problem, sometimes one of the
'unliterate' procedure in Cabal. Does the problem remain if you start
Haddock manually, maybe on manually unliterated modules?
Base is a bit too big and
Hi,
I want to generate documentation for the base libraries, so I darcs
get the base libraries, and a very basic (the sample default)
Setup.hs, and try:
runhaskell Setup configure
runhaskell Setup build
Pretty much no luck, but I'll leave that for someone else to sort out :)
runhaskell Setup
Stefan Holdermans wrote:
Andy,
Many thanks again - I'll make this my last post for at least a week
or two (to give others some bandwidth) -
Well, if you are having difficulties learning the language, you really
shouldn't hold back on asking questions, of course. So, please, do ask
those
Bulat Ziganshin wrote:
Hello Stefan,
Sunday, August 14, 2005, 2:05:00 PM, you wrote:
SH let format line = [ ++ concat (intersperse , (words line)) ++ ]
SH return $ map (mkVec . read . format) $ lines str -- CORRECTED
or just
return $ map (mkVec . map read . words) $ lines str
Hi
Hello Andy,
Tuesday, August 16, 2005, 2:58:43 AM, you wrote:
AE If there were a Haskell cookbook (as there is a Python one), I
AE would have gone straight there. I regularly use the Python cookbook
AE site which is very useful . However, until there's a Haskell equivalent
AE (which then
Bulat,
or just
return $ map (mkVec . map read . words) $ lines str
Yeah, I wrote that one down a little bit later, but didn't really find
it worth mentioning. ;) As said, I don't really think this kind of
programs is suitable for learning Haskell, anyway.
Regards,
Stefan
Andy,
Many thanks again - I'll make this my last post for at least a week or
two (to give others some bandwidth) -
Well, if you are having difficulties learning the language, you really
shouldn't hold back on asking questions, of course. So, please, do ask
those questions. I can recommend
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