Dear all,
I introduce a very simple extension to the Lens datatype from Control.Lens
that allows it to work with Arrows:
https://gist.github.com/tomjaguarpaw/6865080
I would particularly like to discuss this with authors of Control.Lens to
see if such an idea is suitable for inclusion in
If you use cpphs as a library, there is an API called runCpphsReturningSymTab.
Thence you can throw away the actual pre-preprocessed result text, keep only
the symbol table, and lookup whatever macros you wish to find their values. I
suggest you make this into a little code-generator, to
Hello, I'm trying to use a type class to select an element from a list.
I would like to have a String CC as a value for l10'.
{-# LANGUAGE MultiParamTypeClasses, GADTs,FlexibleInstances, DataKinds
,TypeFamilies, KindSignatures, FlexibleContexts, OverlappingInstances,
StandaloneDeriving,
Isn't it the case that there could be more than one natural transformation
between functors?
On Tue, Oct 1, 2013 at 10:00 PM, John Wiegley jo...@fpcomplete.com wrote:
Yitzchak Gale g...@sefer.org writes:
In fact, it even makes sense to define it as FunctorIO, with the only
laws
being
On Mon, Oct 07, 2013 at 07:57:23PM +0400, Daniil Frumin wrote:
Isn't it the case that there could be more than one natural transformation
between functors?
Definitely. In addition rwbarton responded to my challenge by finding two
different applicative morphisms between the same applicative,
Daniil Frumin difru...@gmail.com writes:
Isn't it the case that there could be more than one natural transformation
between functors?
Yes, I imagine there would have to be some newtype wrappers to distinguish in
those cases.
--
John Wiegley
FP Complete Haskell tools,
On Mon, 7 Oct 2013 10:40:13 +0100, Tom Ellis
tom-lists-haskell-cafe-2...@jaguarpaw.co.uk wrote:
Dear all,
I introduce a very simple extension to the Lens datatype from Control.Lens
that allows it to work with Arrows:
https://gist.github.com/tomjaguarpaw/6865080
I would particularly
On Mon, Oct 07, 2013 at 07:14:44PM +0200, Niklas Haas wrote:
On Mon, 7 Oct 2013 10:40:13 +0100, Tom Ellis
tom-lists-haskell-cafe-2...@jaguarpaw.co.uk wrote:
I introduce a very simple extension to the Lens datatype from Control.Lens
that allows it to work with Arrows:
On Mon, Oct 07, 2013 at 06:22:33PM +0100, Tom Ellis wrote:
On Mon, Oct 07, 2013 at 07:14:44PM +0200, Niklas Haas wrote:
On Mon, 7 Oct 2013 10:40:13 +0100, Tom Ellis
tom-lists-haskell-cafe-2...@jaguarpaw.co.uk wrote:
I introduce a very simple extension to the Lens datatype from
Thanks for your answer, looks like this is my only option to do this.
Can you provide some information about what does parameters of
runCpphsReturningSymTab stands for? I made several attempts but
couldn't get any useful return value.
For example, I have no idea what does third parameter does.
Have you looked into using hsc2hs? If I understand your problem, it's
designed exactly to solve it.
--
Carl
On Mon, Oct 7, 2013 at 12:20 PM, Ömer Sinan Ağacan omeraga...@gmail.comwrote:
Thanks for your answer, looks like this is my only option to do this.
Can you provide some information
I was hoping I could use Arbitrary instances to generate streams of values for
test data.
It looks like you're not 'supposed' to be trying this, other than for the
specific purpose of then testing some properties on these streams within Quick
Check itself.
I'm looking for something like the
Carl, thank you very much. This is exactly what I was looking for, and
it solved my problem in 5 minutes.
What's awesome is that when Cabal finds a .hsc file it automatically
calls this tool. Great.
Thanks again.
---
Ömer Sinan Ağacan
http://osa1.net
2013/10/8 Carl Howells
Hi all,
Michael Snoyman, Andreas Voellmy and I are invited to write an article
about Warp to The Performance of Open Source Applications:
http://aosabook.org/en/index.html
It is now open to the public including our article.
http://aosabook.org/en/posa/warp.html
Enjoy!
--Kazu
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