Michael Snoyman wrote:
> Actually, this is just a setting: you can override with checkStatus[1].
>
> [1]
> http://hackage.haskell.org/packages/archive/http-conduit/1.2.4/doc/html/Network-HTTP-Conduit.html#v:checkStatus
Absolutely! I use that in my http-proxy package [0]. Elegant and easy
to use
On Wed, Feb 8, 2012 at 6:28 AM, Myles C. Maxfield
wrote:
> I have been looking around at possibly making a Browser module for
> Network.HTTP.Conduit on top of Control.Monad.State. I came across this
> roadbump:
>
> In order to implement redirection following, client code must call 'http'
> with a
It's possible ResourceT from the yesod guys could be quite useful. It
allows you to manually release things, but also ensures that things are
released in case of exceptions. It also supports, from what I can tell,
some kind of reference counting for use with multiple threads (the
deallocator isn't
On Tue, Feb 7, 2012 at 10:28 PM, Myles C. Maxfield
wrote:
> I have been looking around at possibly making a Browser module for
> Network.HTTP.Conduit on top of Control.Monad.State. I came across this
> roadbump:
>
> In order to implement redirection following, client code must call 'http'
> with a
Sounds hairy. Is there any way to get reference counting garbage collection
in Haskell?
On Tue, Feb 7, 2012 at 9:26 AM, L Corbijn wrote:
> On Tue, Feb 7, 2012 at 5:23 AM, Austin Seipp wrote:
> > Just to clarify, this guarantee possibly could be made, ghc just doesn't
> do
> > it now. In the pas
On Tue, Feb 7, 2012 at 3:23 PM, Austin Seipp wrote:
> If you're writing a library, you need to compile the library with
> `-fhpc`, i.e. put it in the library stanza, not the testsuite stanza,
> and then you can compile the test program using your library - the
> resulting 'tix' file will contain t
Can't you do something like have the kind be unlifted? for instance
data Proxy (a :: #)
data Type1 :: #
data Type2 :: #
John
On Tue, Feb 7, 2012 at 12:19 PM, Douglas McClean
wrote:
> There are all sorts of useful functions that would otherwise require
> explicit type applications which w
On Tue, Feb 7, 2012 at 4:24 AM, Simon Marlow wrote:
> Separately the unix package added support for undecoded FilePaths
> (RawFilePath), but unfortunately at the same time we started using a new
> extension in GHC 7.4.1 (CApiFFI), which we decided not to document because
> it was still experimenta
I switched to Git bash and the runtime error produced by the library
is the same.
This error may be produced because the configuration it does not
detect the netwiorkin related includes such is socket.h. This does not
exist neither in the ghc installation neither in GIT/Mingw
2012/2/7 Holger Rei
How do you control where the .mix files are generated? GHC is putting them
in .hpc/, but I'm getting errors like "hpc: can not find
test-0.0.0/Data.Test in ["./dist/hpc/mix/test-0.0.0"]".
Mike Craig
On Tue, Feb 7, 2012 at 5:12 PM, Ryan Newton wrote:
> By the way, has anyone else had trouble w
On 8/02/2012, at 2:11 AM, Steve Horne wrote:
> On 06/02/2012 23:58, Richard O'Keefe wrote:
>> On 4/02/2012, at 12:13 AM, Gábor Lehel wrote:
>>> All of this said, record.field is still the most readable, intuitive,
>>> and familiar syntax for selecting a field from a record that I know
>>> of.
>>
I just use the version of MSys that is included with Git [1]. This puts a
"Git bash" icon on your desktop which you can then use to build the network
library.
[1] http://code.google.com/p/msysgit/
2012/2/7 Alberto G. Corona
> Nothing bur a long history of failures. The problem is the
> configur
On 2/7/12 4:52 PM, Richard O'Keefe wrote:
Anyone who has had occasion to write Fortran in the last 20+ years
has had to discover just how quickly you can get used to using
'record%field'. I'm not really a COBOL programmer, but Prolog and
Erlang and Smalltalk taught me well that '.' in a programm
"Fun in the afternoon", a termly gathering of UK FP people, will be in Oxford
on 28th Feb.
http://sneezy.cs.nott.ac.uk/fun/
On 7/02/2012, at 18:32, Ivan Perez wrote:
> Hello,
> I recently moved to Kenilworth, Warwickshire, UK, and I'd like
> to know if there are meetings, talks, or any FP-rel
By the way, has anyone else had trouble with "cabal test" diverging?
I've been running into this issue with cabal 0.10.2, but ONLY in
conjunction with GHC 6.12.3. It's hard to make a small reproducer for (and
therefore I haven't filed a bug yet), but you can see the below Jenkins run
stalled for
On 7/02/2012, at 1:41 PM, AntC wrote:
> Richard, now you're just being playful.
"Half fun and full earnest."
I *do* regard 'field OF record' as far more readable, intuitive, &c
than 'record.field'. With the number of meanings '.' already has in
Haskell, I *do* regard any attempt to overload it
If you're writing a library, you need to compile the library with
`-fhpc`, i.e. put it in the library stanza, not the testsuite stanza,
and then you can compile the test program using your library - the
resulting 'tix' file will contain the library coverage reports. You
can link a HPC-built library
Thanks for the advice, all. I've got test-framework, quickcheck, and
cabal's test-suite all working together nicely.
Cabal seems to support using hpc to check test coverage. If I add -fhpc to
the ghc-options under the test-suite, I get output like "Test coverage
report written to dist/hpc/html/tes
In stream processing frameworks this is a (common) non-deterministic merge
operation.
Because it's nondeterministic it would need to happen in IO:
parCompletionOrder :: [a] -> IO [a]
But it can be nonblocking (returns immediately, and "lazy IO" happens in
the background).
The Chan library has
The "problem" this time is in "Configure" :
case "$host" in
*-mingw32)
EXTRA_SRCS="cbits/initWinSock.c, cbits/winSockErr.c,
cbits/asyncAccept.c"
EXTRA_LIBS=ws2_32
CALLCONV=stdcall ;;
*-solaris2*)
EXTRA_SRCS="cbits/ancilData.c"
EXTRA_LIBS="nsl, socket"
There are all sorts of useful functions that would otherwise require
explicit type applications which we work around by passing undefined and
ignoring its value. (See
http://www.haskell.org/pipermail/libraries/2010-October/014742.html for a
prior discussion of why this is, how the use of undefined
Did you also change the files in the /cbits/ folder? Because they also
check for HAVE_WINSOCK_H.
2012/2/7 Alberto G. Corona
> The code is evolving and none of the versions match exactily with the
> patch, but substituting HAVE_WINSOCK by HAVE WINSOCK2 in these files
> solves the compilation prob
The code is evolving and none of the versions match exactily with the
patch, but substituting HAVE_WINSOCK by HAVE WINSOCK2 in these files
solves the compilation problem at least in the network 2.3.0.10
version from hackage.
However it produces the same undefined references when this library is
im
Note that there are two branches on github, master and stable. You want the
latter.
On Feb 7, 2012 8:23 AM, "Alberto G. Corona" wrote:
> This is quite different.
> I don´t know how but I was looking at some other older patch around
> the same issue and I supposed that it was the one refered by Yo
Hello,
I recently moved to Kenilworth, Warwickshire, UK, and I'd like
to know if there are meetings, talks, or any FP-related activities
going on around here. I contacted somebody at Warwick
University but, from what I understood, their Formal Methods
group doesn't exist as such any longer and the
This is quite different.
I don´t know how but I was looking at some other older patch around
the same issue and I supposed that it was the one refered by Yohan
Tibell.
I´ll try your patch.
Thanks!.
2012/2/7 Holger Reinhardt :
> Hi,
>
> (I submitted the patch that Johan linked to)
> Network/Socke
This week, at work, I've been attending a workshop which is concerned with
writing (actually rewriting) a domain specific language that we've been
using.Although I've only known Haskell for four months, I can see that
it's infected my brain, since I kept seeing Haskell solutions to all sorts
of
Hello list,
This is a maintenance release without new functionality, the central change
is the switch from Haskell Array to Data.Vector (to ease it's use for OpenGL
texture loading).
Juicy.Pixels 1.1 change log :
- Fixing automatic bitmap decoding, the decodeImage function wasn't trying to
Hi,
(I submitted the patch that Johan linked to)
Network/Socket/Internal.hsc has the following code:
#if defined(WITH_WINSOCK) || defined(cygwin32_HOST_OS)
type CSaFamily = (#type unsigned short)
#elif defined(darwin_HOST_OS)
type CSaFamily = (#type u_char)
#else
type CSaFamily = (#type sa_family
Crash blossoms, while amusing, are not a desirable feature of a programming
language. They are specifically a failure to communicate clearly.
On Feb 6, 2012 6:38 PM, "AntC" wrote:
> Donn Cave avvanta.com> writes:
>
> >
> > You can find stuff like "fromIntegral.ord" in
> > packages downloaded to
Hi Yusaku,
On Tue, Feb 7, 2012 at 00:27, HASHIMOTO, Yusaku wrote:
> Hi, I wrote a simple shell function for switching GHC version on the
> system. It works only under Mac OSX, and only switch GHCs installed
> via .pkg installers. It's useful to experiment newer features without
> worrying breakin
On Tue, Feb 7, 2012 at 5:23 AM, Austin Seipp wrote:
> Just to clarify, this guarantee possibly could be made, ghc just doesn't do
> it now. In the past ghc never guaranteed a finalizer would ever be run.
>
> Regardless I would be wary of trusting finalizers to clean up very scarce
> resources. A m
2012/2/7 Mikhail Vorozhtsov :
> Ah, sorry, I got sloppy. Have you encountered situations where partial
> application of such "constraint aliases" becomes a problem?
In the particular case of the Existential class I'm not sure (it's
hard to imagine a real-world application for it in the first place
Hi Johan,
The patch is not for the current version of network and the code is
quite different. Basically it is necesary to define this variable as
"unsigned short" that is the thing intended in the patch. however I
put it by brute force, without regard of the prerpocessor directives.
With this cha
On 06/02/2012 23:58, Richard O'Keefe wrote:
On 4/02/2012, at 12:13 AM, Gábor Lehel wrote:
All of this said, record.field is still the most readable, intuitive,
and familiar syntax for selecting a field from a record that I know
of.
Having learned COBOL and Algol 68 before Haskell was dreamed of
On 02/07/2012 04:05 PM, Gábor Lehel wrote:
On Tue, Feb 7, 2012 at 7:23 AM, Mikhail Vorozhtsov
wrote:
Even better, you can write
type ExistentialWith c e = (Existential e, c ~ ConstraintOf e)
instead of
class(Existential e, c ~ ConstraintOf e) => ExistentialWith c e
instance (Existentia
On 06/02/2012 20:32, Ian Lynagh wrote:
On Sun, Feb 05, 2012 at 07:17:32PM -0800, John Millikin wrote:
That was my understanding also, then QuickCheck found a
counter-example. It turns out that there are cases where a valid path
cannot be roundtripped in the GHC 7.2 encoding.
This is fixed in
On 02/07/2012 06:49 PM, Yves Parès wrote:
Are there documentation on constraints being types, how they can be
declared/handled and what are the interests?
The GHC User's Guide has (somewhat short) section
http://www.haskell.org/ghc/docs/latest/html/users_guide/constraint-kind.html
Blog posts:
h
Are there documentation on constraints being types, how they can be
declared/handled and what are the interests?
2012/2/7 Mikhail Vorozhtsov
> On 02/06/2012 03:32 AM, Gábor Lehel wrote:
>
>> There's a common pattern in Haskell of writing:
>>
>> data E where E :: C a => a -> E
>> also written
>
Here you can take a look at a complete example included in the package:
http://haskell-web.blogspot.com/2012/02/web-application-server-with-stateful.html
This snippet is the web page in declarative form:
shopProds :: V.Vector Int -> [Prod]
-> View Html IO (Either Int Prod)shopProds ca
Hi Haskellers
I I´m happy to announce the first version of MFlow
http://hackage.haskell.org/package/MFlow
MFlow permits the execution of web applications in a procedural form,
that is, with multiple requests-response interactions in a single
procedure. MFlow stores the execution state, manage t
On Tue, Feb 7, 2012 at 7:23 AM, Mikhail Vorozhtsov
wrote:
> Even better, you can write
>
> type ExistentialWith c e = (Existential e, c ~ ConstraintOf e)
>
> instead of
>
> class (Existential e, c ~ ConstraintOf e) => ExistentialWith c e
> instance (Existential e, c ~ ConstraintOf e) => Existen
On 30 January 2012 14:22, Rob Stewart wrote:
> Hi,
>
> I'm experiencing the "accept: resource exhausted (Too many open
> files)" exception when trying to use sockets in my Haskell program.
>
> The situation:
> - Around a dozen Linux machines running my Haskell program,
> transmitting thousands of
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