2009/1/30 guenni68 red...@fedoms.com:
Hi Alistair,
yes, please, pretty please do!
I really am desparate, I'm running into so much trouble because I have
to export to MS-Access and I'm a little out of luck with HDBC. HDBC
works like a charm
unless you have to use MS-Access.
Hmm... it's not
This has been reported before:
http://trac.haskell.org/haddock/ticket/73#comment:4
Not sure what's going on yet. If anyone's got a minimal test-case,
that'd be great.
This is what fails for me (in Test/Fail.hs):
{- # LANGUAGE CPP #-}
module Test.Fail
I've added this to the trac ticket.
On Fri, 30 Jan 2009 15:21:05 +0800
Evan Laforge qdun...@gmail.com wrote:
Is there a description somewhere of what the
critical flaws have been and are, and what the current problems are to
solve before we can finally have a practical declarative and
compositional UI library?
In *theory*,
Stefan == Stefan Monnier monn...@iro.umontreal.ca writes:
Stefan In any case I've added a note to mention that all you need to do
Stefan is (setq haskell-font-lock-symbols t).
Thanks - nice refactoring for my emacs-haskell.el :-D
Sincerely,
Gour
--
Gour | Zagreb, Croatia | GPG key:
Conal == Conal Elliott co...@conal.net writes:
Conal I don't mind if it takes a while, since I'm confident it'll be
Conal worth the wait. Besides, compositionality yields exponential
Conal rewards.
Conal Some more encouragement from my friends:
[snip]
I'm with you Conal, at least with the
Lennart Augustsson wrote:
I had a quick look at the code for
loop :: Int64 - Int64 - Int64
loop i r = if i == 0 then r else loop (i-1) (r+1)
It's quite bad. It's full of C calls.
It would be much better to do what gcc does and treat Int64 as a
primitive type, and just insert C calls for the
Hi, list!
I have a file:
\begin{code}
module Main where
import MyModule
main=do
print hello
\end{code}
MyModule is in MyModule.lhs
when building with
ghc -o main -fhpc --make Main.lhs
I get perfectly working code, but MyModule.mix lacks any usable
coverage information:
Mix
Have you tried processing the file with lhs2tex first, to unlit it? (Or
is that what you are doing? It's unclear from your email.)
--
Robin
On Fri, 30 Jan 2009 16:02:08 +0300
Pavel Perikov peri...@gmail.com wrote:
Hi, list!
I have a file:
\begin{code}
module Main where
import MyModule
==
Extensible and Modular Generics for the Masses
==
Extensible and Modular Generics for the Masses (EMGM) is a library for
generic programming in Haskell using type classes and a sum-of-products
view.
L.S.,
The function 'liftA2' is mentioned in many documents about Arrows; yet I
cannot find it in the Control.Arrow module, as it comes with GHC 6.10.1
and Hugs Sep 2006. Is there a special reason for this?
--
Regards,
Henk-Jan van Tuyl
--
http://functor.bamikanarie.com
Hi Henk,
You're only a Hoogle away: http://haskell.org/hoogle/?hoogle=liftA2
Control.Applicative liftA2 :: Applicative f = (a - b - c) - f a -
f b - f c
I guess its both an arrow function and an applicative function.
Thanks
Neil
On Fri, Jan 30, 2009 at 3:02 PM, Henk-Jan van Tuyl
On Fri, Jan 30, 2009 at 03:05:52PM +, Neil Mitchell wrote:
You're only a Hoogle away: http://haskell.org/hoogle/?hoogle=liftA2
Control.Applicative liftA2 :: Applicative f = (a - b - c) - f a -
f b - f c
I guess its both an arrow function and an applicative function.
Ah, but this
Today I played with SmallCheck.
Interested in what happened when I tried to find a small unsatisfiable
boolean formula that is not easily detected as such?
Watch my attempts:
http://www-ps.informatik.uni-kiel.de/~sebf/haskell/unsatisfiable-formula-that-needs-guessing-to-fail.lhs.html
Hi,
I see that cabal allows me to say:
c-sources: (...)
and then have a few C files built with my program.
I see that I can have lines like
#include some usual C header
in those files, and that makes me think that, even if I add no C files
to my .cabal, I still can count on what would be
On Fri, Jan 30, 2009 at 2:21 AM, Evan Laforge qdun...@gmail.com wrote:
Conal As Meister Eckhart said, Only the hand that erases can write the
Conal true thing.
Nicely said...
I'm sure you're not the only one desiring to write GUI in genuinely
functional toolkit, but, being realistic and
I haven't really thought about GUIs much in the last decade, but if one were
to embark on such an endeavor, I think an appropriate starting point would
be SDL with OpenGL.
There would be no very little API structure to hinder the pure functional
approach, and it would be portable to a wide
2009/1/30 Rick R rick.richard...@gmail.com
I haven't really thought about GUIs much in the last decade, but if one
were to embark on such an endeavor, I think an appropriate starting point
would be SDL with OpenGL.
There would be no very little API structure to hinder the pure functional
Wow Luke, this is a nice little package you made :)
If you now add support for Bezier curves then you're my hero, then I
can get rid of GTK/Cairo for experiments (which turned out to be
really slow when rendering large double buffered surfaces...)
I also believe that building something on top of
Maurcio briqueabra...@yahoo.com wrote:
Supposed I wanted to write a module with all C functions always
available, what could I let be there?
POSIX?
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(c) this sig last receiving data processing entity. Inspect headers
for copyright history. All rights reserved. Copying, hiring,
i don't think haskell on llvm exists, so the answer would be no
On Thu, Jan 29, 2009 at 8:36 AM, Dan Mead d.w.m...@gmail.com wrote:
does the haskell on llvm compiler support the ghc extentions?
On Wed, Jan 28, 2009 at 7:27 PM, Anatoly Yakovenko aeyakove...@gmail.com
wrote:
ghc llvm port
Achim Schneider a écrit :
Maurcio briqueabra...@yahoo.com wrote:
Supposed I wanted to write a module with all C functions always
available, what could I let be there?
POSIX?
Is that portable for non-unix? I think cabal
does work on some non-unix systems.
Maurício
Maurcio briqueabra...@yahoo.com wrote:
Achim Schneider a __crit :
Maurcio briqueabra...@yahoo.com wrote:
Supposed I wanted to write a module with all C functions always
available, what could I let be there?
POSIX?
Is that portable for non-unix? I think cabal
does
Antony Courtney antony.court...@gmail.com wrote:
One issue I think you may encounter, though, is that last time I
looked, there was still no high-quality, widely available
cross-platform 2-D vector graphics library in C or C++! [...]
Xrender. It appears to map exceptionally well onto FP, is
No I do not process it using lhs2tex. I just compile literate haskell
code. The necessity of preprocessing kills the entire idea of having
literate source. I just feed lhs files to ghc and everything works
fine except code coverage.
On 30.01.2009, at 5:35, Robin Green wrote:
Have you
On Fri, Jan 30, 2009 at 3:50 PM, Achim Schneider bars...@web.de wrote:
Antony Courtney antony.court...@gmail.com wrote:
One issue I think you may encounter, though, is that last time I
looked, there was still no high-quality, widely available
cross-platform 2-D vector graphics library in C or
On Fri, Jan 30, 2009 at 1:11 PM, Antony Courtney
antony.court...@gmail.comwrote:
A 2-D vector graphics library such as Java2D ( or Quartz on OS/X or
GDI+ on Windows ) supports things like computing tight bounding
rectangles for arbitrary shapes, hit testing for determining whether a
point is
Hi everyone,
I'm pleased to announce that HDBC v2.0 is now available.
Simultaneously, HDBC-sqlite3, HDBC-postgresql, and HDBC-odbc v2.0 have
also been uploaded. All may be found from Hackage, or at
software.complete.org.
A guide to new features and migration can be found at:
2009/1/30 Bryan O'Sullivan b...@serpentine.com:
On Fri, Jan 30, 2009 at 1:11 PM, Antony Courtney antony.court...@gmail.com
wrote:
A 2-D vector graphics library such as Java2D ( or Quartz on OS/X or
GDI+ on Windows ) supports things like computing tight bounding
rectangles for arbitrary
Great thanks, Ryan and Yevgeny!
1. For sumAA 10 $ f 1 2 and for sumAA 1000 $ f 1 2 - does the used
memory amounts differ?
2. Does it create in memory only 2 data objects, or creates 10s and 1000s
and garbage collects unneeded?
--
Also consider
fix (\p - (AA somedata1 $ snd p, BB
On Fri, Jan 30, 2009 at 09:40:02PM +0100, Achim Schneider wrote:
POSIX?
Is that portable for non-unix? I think cabal
does work on some non-unix systems.
Even windows provides POSIX, it's _the_ C standard. If you are going to
find a common set of C functions, that'll be it. Don't
Hi,
at one point I generate n elements of dropdowns dynamically. Whenever
I make a selection in any of those choices the others should also be
updated, ie. the list of available choices needs to be altered.
But I also need to update in place the model that is associated with
each individual
On Fri, Jan 30, 2009 at 4:25 PM, Bryan O'Sullivan b...@serpentine.com wrote:
On Fri, Jan 30, 2009 at 1:11 PM, Antony Courtney antony.court...@gmail.com
wrote:
A 2-D vector graphics library such as Java2D ( or Quartz on OS/X or
GDI+ on Windows ) supports things like computing tight bounding
Hi,
Was wondering if anyone knew if darcs-server is still maintained? The
author¹s e-mail address bounces.
The Haskell client is broken in ghc 6.10. I have a straightforward fix for
it:
phil$ darcs whatsnew
hunk ./client/build 2
-ghc -Wall -O2 -o darcs-client -package network Http.hs
Hi, Antony -
It's good to see you active on here.
It's not clear to me if the Cairo API in its current form supports
vector-level clipping or constructive area geometry, [...]
The Cairo clipping API is very PostScripty; you set up a path and then turn
it into a clip region instead of
Hello John,
I'm trying to install the new version of HDBC on my Mac (ghc version
is 6.10.1), and get the following error:
# cabal upgrade --global
Resolving dependencies...
'HDBC-2.0.0' is cached.
Configuring HDBC-2.0.0...
Preprocessing library HDBC-2.0.0...
Preprocessing executables for
I found Cairo rather slow, even on the fastest hardware.
Maybe OpenVG will take off one day:
http://www.khronos.org/openvg
2009/1/30 Bryan O'Sullivan b...@serpentine.com:
Hi, Antony -
It's good to see you active on here.
It's not clear to me if the Cairo API in its current form supports
On Sat, Jan 31, 2009 at 00:07, Valentyn Kamyshenko kam...@kamysh.orgwrote:
Hello John,
I'm trying to install the new version of HDBC on my Mac (ghc version is
6.10.1), and get the following error:
# cabal upgrade --global
Resolving dependencies...
'HDBC-2.0.0' is cached.
Configuring
2009/1/30 Krzysztof Skrzętnicki gte...@gmail.com
On Sat, Jan 31, 2009 at 00:07, Valentyn Kamyshenko kam...@kamysh.orgwrote:
Hello John,
I'm trying to install the new version of HDBC on my Mac (ghc version is
6.10.1), and get the following error:
# cabal upgrade --global
Resolving
On Sat, Jan 31, 2009 at 00:45, Krzysztof Skrzętnicki gte...@gmail.comwrote:
On Sat, Jan 31, 2009 at 00:07, Valentyn Kamyshenko kam...@kamysh.orgwrote:
Hello John,
I'm trying to install the new version of HDBC on my Mac (ghc version is
6.10.1), and get the following error:
# cabal upgrade
Thanks, Krzysztof - it worked for me.
Something is definitely wrong with cabal dependencies: even when
HDBC-2.0.0 was installed, it tried to install it again (and failed)
when I tried to install HDBC-postgresql and HDBC-sqlite3.
Manual installation (./Setup configure; ./Setup build; ./Setup
On Fri, Jan 30, 2009 at 03:50:30PM -0800, Michael Snoyman wrote:
[3 of 7] Compiling Database.HDBC.Statement ( Database/HDBC/Statement.hs,
dist/build/Database/HDBC/Statement.o )
Database/HDBC/Statement.hs:113:9:
Type constructor `Exception' used as a class
In the instance
On Sat, Jan 31, 2009 at 12:52:02AM +0100, Krzysztof Skrz??tnicki wrote:
I got the same error: Windows XP, GHC 6.10.1.
For some reason imported Control.Exception module appears to be 6.8.*
version.
I found a (temporary) fix: change dependancy in .cabal file to state base
= 4. Otherwise
Excerpts from John Goerzen's message of Fri Jan 30 18:31:00 -0600 2009:
Why would cabal-install select a different base than running Setup
manually?
I can't hard-code base = 4 into .cabal because that would break for
GHC 6.8 users. I have CPP code that selects what to compile based on
Thanks for the hint for folks.
Why would cabal-install select a different base than running Setup
manually?
Someone thought it was a good idea to make base-3 the preferred
selection for cabal-install, to make the transition from base-3 to
base-4 as smooth as possible. It may have worked for
Antony Courtney antony.court...@gmail.com wrote:
Pretty clear how to build a 2-D Scenegraph library
like Piccolo on top of Java2D or Quartz or GDI+; much less clear to me
how to build something like that directly on top of XRender.
I intended the scene graph to be implemented piece-wise
The following change in .cabal file may solve the problems:---
flag base4
description: Choose base-4 if possible
default: True
library
if flag(splitBase)
if flag(base4)
Build-Depends: base=4, old-time, time, bytestring, containers,
old-locale
else
Build-Depends: base=3,
Cairo is now the graphics back end for Firefox, yes? I thought moving to
Cairo resulted in a considerable rendering speedup for FF.
On Fri, Jan 30, 2009 at 6:31 PM, Peter Verswyvelen bugf...@gmail.comwrote:
I found Cairo rather slow, even on the fastest hardware.
Maybe OpenVG will take off
Achim Schneider bars...@web.de wrote:
-- compositional --
That's certainly the wrong word, but I think you know what I mean.
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performance and/or quoting
On Sat, Jan 31, 2009 at 01:51:54AM +0100, Krzysztof Skrz??tnicki wrote:
The following change in .cabal file may solve the problems:---
flag base4
description: Choose base-4 if possible
default: True
library
if flag(splitBase)
if flag(base4)
Build-Depends: base=4,
On Fri, Jan 30, 2009 at 06:40:29PM -0600, Austin Seipp wrote:
Excerpts from John Goerzen's message of Fri Jan 30 18:31:00 -0600 2009:
Why would cabal-install select a different base than running Setup
manually?
I can't hard-code base = 4 into .cabal because that would break for
GHC
I like to look at the code where the runtime detects a TVar, inside an
atomic block, has been changed by another thread and hence it aborts the
atomic operation. Any suggestion as to where I would find the code?
daryoush
On Sun, Dec 7, 2008 at 10:48 PM, Don Stewart d...@galois.com wrote:
Hi Antony,
Hopefully some enterprising Haskell hacker will wrap Cairo in a nice purely
functional API.
Jefferson Heard is working on such a thing, called Hieroglyph. Lately I've
been helping him simplify the design and shift it toward a clear, composable
semantic basis, i.e. genuinely
2009/1/23 Duncan Coutts duncan.cou...@worc.ox.ac.uk:
Did either of you file a ghc ticket about this issue?
As result after reproducing by other users
I create new ghc bug: http://hackage.haskell.org/trac/ghc/ticket/2992
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