does hdbc have parametrized selects ?
There is execute
execute :: Statement - [SqlValue] - IO Integer
and some other functions which get list of parameters but return IO Integer or
IO ()
and there is other couple of functions
fetchRow :: Statement - IO (Maybe [SqlValue])
which return values of
Did you ever solve this? I have a similar message ( user error (out of memory) ) arising from a different app (not tplot) that uses the Haskell Chart library (and cairo underneath). On some linux machines, it crashes, on others it works fine. I can find no environment differences between the
Dear list,
during past few days I spent a lot of time trying to figure out how to write
Criterion benchmarks,
so that results don't get skewed by lazy evaluation. I want to benchmark
different versions of an
algorithm doing numerical computations on a vector. For that I need to create
an
Hi Janek,
On 18/10/12 10:23, Janek S. wrote:
during past few days I spent a lot of time trying to figure out how to write
Criterion benchmarks,
so that results don't get skewed by lazy evaluation. I want to benchmark
different versions of an
algorithm doing numerical computations on a vector.
I don't know if you have already read them,
but Tibell's slides on High Performance Haskell are pretty good:
http://www.slideshare.net/tibbe/highperformance-haskell
There is a section at the end where he runs several tests using Criterion.
HTH,
A.
On 18 October 2012 11:45, Claude Heiland-Allen
This was not sent to the cafe since I used the wrong from address.
-- Forwarded message --
From: Asten, W.G.G. van (Wilfried, Student M-CSC)
w.g.g.vanas...@student.utwente.nl
Date: Thu, Oct 18, 2012 at 12:27 PM
Subject: Re: [Haskell-cafe] hdbc parametrized select
To:
Hello list!
I've been experimenting with emulating subtyping and heterogeneous
collections in Haskell. I need this to parse a binary representation of
objects of a class hierarchy in C++ program.
So far I implemented upcasting using a chain of type classes and now I'm
playing with
Why do you need ALike x, BLike x etc.? Why not just Like u x?
Отправлено с iPhone
Oct 18, 2012, в 14:36, Dmitry Vyal akam...@gmail.com написал(а):
Hello list!
I've been experimenting with emulating subtyping and heterogeneous
collections in Haskell. I need this to parse a binary
Something like this might work, not sure what the canonical way is.
(...)
This is basically the same as the answer I was given on SO. My concerns about
this solutions are:
- rnf requires its parameter to belong to NFData type class. This is not the
case for some data
structures like Repa
On 10/18/2012 03:20 PM, MigMit wrote:
Why do you need ALike x, BLike x etc.? Why not just Like u x?
Hmm, looks like a nice idea. I tried it, unfortunately I can't cope with
compiler error messages:
tst.hs:32:15:
Context reduction stack overflow; size = 201
Use -fcontext-stack=N to
On Thu, Oct 18, 2012 at 4:23 AM, Janek S. fremenz...@poczta.onet.pl wrote:
Dear list,
during past few days I spent a lot of time trying to figure out how to write
Criterion benchmarks,
so that results don't get skewed by lazy evaluation. I want to benchmark
different versions of an
So the evaluation will be included in the benchmark, but if bench is
doing enough trials it will be statistical noise.
When I intentionally delayed my dataBuild function (using delayThread 100)
the estimated time
of benchmark was incorrect, but when I got the final results all runs were
On Thu, Oct 18, 2012 at 9:06 AM, Janek S. fremenz...@poczta.onet.pl wrote:
So the evaluation will be included in the benchmark, but if bench is
doing enough trials it will be statistical noise.
When I intentionally delayed my dataBuild function (using delayThread
100) the estimated time
* Dmitry Vyal akam...@gmail.com [2012-10-18 17:31:13+0400]
On 10/18/2012 03:20 PM, MigMit wrote:
Why do you need ALike x, BLike x etc.? Why not just Like u x?
Hmm, looks like a nice idea. I tried it, unfortunately I can't cope
with compiler error messages:
tst.hs:32:15:
Context
I am a novice in Haskell but I would love to see the gurus out here
teaching Haskell on MOOCs like Coursera or Udacity.
Dr Martin Odersky is doing it for Scala here:
https://www.coursera.org/course/progfun
I would love to see Haskell growing on such new platforms!
Regards,
Niket
+1
2012/10/18 niket niketku...@gmail.com:
I would love to see Haskell growing on such new platforms!
___
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
Yes, Criterion always discards the time of the first evaluation.
On 18 October 2012 15:06, Janek S. fremenz...@poczta.onet.pl wrote:
So the evaluation will be included in the benchmark, but if bench is
doing enough trials it will be statistical noise.
When I intentionally delayed my dataBuild
On 18 October 2012 13:15, Janek S. fremenz...@poczta.onet.pl wrote:
Something like this might work, not sure what the canonical way is.
(...)
This is basically the same as the answer I was given on SO. My concerns about
this solutions are:
- rnf requires its parameter to belong to NFData
Hi All,
Using `System.Process.runInteractiveProcess', I can start a process
and get a handle to it:
runInteractiveProcess
:: FilePath
- [String]
- Maybe FilePath
- Maybe [(String, String)]
- IO (Handle, Handle, Handle, ProcessHandle)
For diagnostic purposes, I'd like to print
On Thu, Oct 18, 2012 at 5:03 PM, Jason Dusek jason.du...@gmail.com wrote:
For diagnostic purposes, I'd like to print the PID of the
process attached to this handle -- how best to do that?
In Mueval when I wanted the PID (so I could later send sigkills), I did this:
hdl - runProcess
Dear Café,
I just wrote myself a small (~ 200 LOC) calendar application today.
https://bitbucket.org/rainmaker/apphointments
Comments/Patches welcome.
From the readme:
apphointments - A simple functional calendar
This is a UI = Code calendar
Quoth Jason Dusek jason.du...@gmail.com,
Using `System.Process.runInteractiveProcess', I can start a process
and get a handle to it:
runInteractiveProcess
:: FilePath
- [String]
- Maybe FilePath
- Maybe [(String, String)]
- IO (Handle, Handle, Handle, ProcessHandle)
Roman Cheplyaka roma at ro-che.info writes:
* Dmitry Vyal akamaus at gmail.com [2012-10-18 17:31:13+0400]
On 10/18/2012 03:20 PM, MigMit wrote:
Why do you need ALike x, BLike x etc.? Why not just Like u x?
Hmm, looks like a nice idea. I tried it, unfortunately I can't cope
with
Hey all,
I've been looking at acid-state as a possible storage backend for an
application. It looks like it fits my needs pretty damn well, but one
thing that I'm curious about is if it is possible to get a list of
update events. You can obviously query for the current state, but
it's not
24 matches
Mail list logo
