On Tue, Aug 7, 2012 at 11:03 AM, Daniel Trstenjak <
daniel.trsten...@gmail.com> wrote:
>
> Hi all,
>
> it should be possible a call a function on all elements of the data
> structure, to add and remove elements.
>
> What I currently have:
>
> the type class:
>
> class Foo a where
>hasId :: a -
Hi Joey,
On Tue, Aug 07, 2012 at 02:13:09PM -0400, Joey Adams wrote:
> Are you looking for existential quantification [1]?
>
> data SomeFoo = forall a. Foo a => a
>
> [1]:
> http://www.haskell.org/ghc/docs/latest/html/users_guide/data-type-extensions.html#existential-quantification
Thank
On Tue, Aug 7, 2012 at 12:51 AM, Dean Herington
wrote:
> At 4:30 PM -0700 8/5/12, Matthew wrote:
>>
>> On Sun, Aug 5, 2012 at 12:32 AM, Henk-Jan van Tuyl
>> wrote:
>>>
>>> On Sun, 05 Aug 2012 03:21:39 +0200, Matthew
>>> wrote:
>>>
I've got a function which takes in two chars, describing a
On Tue, Aug 7, 2012 at 2:03 PM, Daniel Trstenjak
wrote:
> Data structure containing elements which are instances of the same type class
Are you looking for existential quantification [1]?
data SomeFoo = forall a. Foo a => a
[1]:
http://www.haskell.org/ghc/docs/latest/html/users_guide/data
Hi all,
it should be possible a call a function on all elements of the data
structure, to add and remove elements.
What I currently have:
the type class:
class Foo a where
hasId :: a -> Int -> Maybe a
a few instances:
data A = A deriving Show
instance Foo A where
hasId a 1 = Just a
On 07.08.2012 18:16, Till Berger wrote:
Dear all,
I may have stumbled upon a bug in the Criterion package. When running
the attached Haskell program (Benchmark.hs, a simple test case) on
multiple cores (with +RTS -N, +RTS -N2, +RTS -N3 etc.) it sooner or
later crashes with the following exceptio
Hi Till,
This would make an excellent bug report at:
https://github.com/bos/criterion/issues
Cheers,
Johan
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Dear all,
I may have stumbled upon a bug in the Criterion package. When running
the attached Haskell program (Benchmark.hs, a simple test case) on
multiple cores (with +RTS -N, +RTS -N2, +RTS -N3 etc.) it sooner or
later crashes with the following exception:
Benchmark: thread blocked inde
Takayuki Muranushi wrote:
> >> * vector-fftw with wisdom was more than 1/2 times faster than fftw in
> >> C with wisdom (and with communication overhead.)
>
> > I would be suspicious of that result. Calling a C function from a library
> > should be slower from Haskell than from C.
>
> Sorry for
On Tue, Aug 7, 2012 at 7:04 AM, Dan Burton wrote:
> As a side note, since the code base is relatively small, it can also serve
> as a simple demonstration of how to use a cabal flag
> in conjunction with CPP to selectively include swaths of code
> (see Control/Monad/Tardis.hs and tardis.cabal).
E
At 4:30 PM -0700 8/5/12, Matthew wrote:
On Sun, Aug 5, 2012 at 12:32 AM, Henk-Jan van Tuyl wrote:
On Sun, 05 Aug 2012 03:21:39 +0200, Matthew wrote:
I've got a function which takes in two chars, describing a playing
card and a suit. An example would be 4C or TH for a 4 of Clubs or a
Ten
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