So here's my question: how useful is h-99 (are they overrated as learning
tools)? I find myself solve most of them in a from the scratch fashion
(e.g., no Monad, no Applicative, no Functor aside from List and a few
Maybe). Some of them are paper-worthy, for example the prime problems. I
hope
On 04/13/2012 10:49 PM, Ben Millwood wrote:
I'm pleased to announce my first genuinely original Hackage package:
notcpp-0.0.1!
http://hackage.haskell.org/package/notcpp
[...]
Why is it
scopeLookup :: String - Q Exp
with n bound to x :: T = @scopeLookup n@ evaluates to an Exp containing
On Sun, Apr 15, 2012 at 09:58, Daniel Hlynskyi abcz2.upr...@gmail.comwrote:
And of-course, problems and solutions are not annotated with there typical
real world aplications, they are not obvious for average beginners. Why
would I make Binary tree balanced, when I don't know, what I'll gain
Hi All,
I found a really strange case where GHC and GHCi behave differently in
inferring types. It took me hours to figure this out.
The following program
{-# LANGUAGE NoMonomorphismRestriction #-}
g x i = x ++ show i
[a,b] = map g [X,Y]
will not load without NoMonomorphismRestriction.
GHCi is defaulting the 'a' in 'Show a' to unit because of the extended
defaulting feature [1] in GHCi. If you turn on
NoMonomorphismRestriction in GHCi, you get the same behavior as in
GHC. If you turn on ExtendedDefaulting in GHC, you get the same
behavior as in GHCi.
Erik
[1]
Thanks for responding to this. Some responses are inline.
On Sat, Apr 14, 2012 at 8:30 PM, Michael Snoyman mich...@snoyman.com wrote:
On Thu, Apr 12, 2012 at 9:25 AM, Myles C. Maxfield
myles.maxfi...@gmail.com wrote:
Hello,
I am interested in the argument to Done, namely, leftover data. More
On Sun, Apr 15, 2012 at 7:14 PM, Steffen Schuldenzucker
sschuldenzuc...@uni-bonn.de wrote:
On 04/13/2012 10:49 PM, Ben Millwood wrote:
I'm pleased to announce my first genuinely original Hackage package:
notcpp-0.0.1!
http://hackage.haskell.org/package/notcpp
[...]
Why is it
Eric: Thanks a lot for explaining the issue. That's very helpful.
Kind of a newbie question, how can I automatically turn on
NoMonomorphismRestriction using emacs mode for haskell?
I know there is the :set command, but I don't want to do it every time I start
up emacs.
In my humble
Hi, I am trying to use process-conduit on windows, but it appears to hang
when using the conduitCmd.
Is there a reason why this doesn't work?
Thanks for any help,
Grant
I have made an attempt to create a version of process conduits that appears to
work on Windows and Linux.
2. If you use connect-and-resume ($$+), the leftovers are returned as
part of the `Source`, and provided downstream.
I'm trying to figure out how to use this, but I'm getting a little bit
confused. In particular, here is a conduit that produces an output for
every 'i' inputs. I'm returning
Sorry for the spam.
A similar matter is this following program, where something downstream
reaches EOF right after a conduit outputs a HaveOutput. Because the type of
the early-closed function is just 'r' or 'm r', there is no way for the
conduit to return any partial output. This means that any
On 16 April 2012 01:44, Ting Lei tin...@hotmail.com wrote:
Kind of a newbie question, how can I automatically turn on
NoMonomorphismRestriction using emacs mode for haskell?
I know there is the :set command, but I don't want to do it every time I
start up emacs.
You can just add it to your
On Sun, Apr 15, 2012 at 19:44, Ting Lei tin...@hotmail.com wrote:
In my humble opinion, I think the GHC should turn on ExtendedDefaulting if
GHCi has it on by default. Otherwise it is confusing for newbies.
I think we're kinda tending in the opposite direction: we'd like
Hi Café.
I'm building GHC from package ghc-7.4.1-src.tar.bz2 as the binary
download was throwing segfaults for me (and apparently a few others).
This has worked well and my issues with GHC and GHCi are now resolved.
However I have needed to build cabal-install. This can't be done using
On Mon, Apr 16, 2012 at 12:12 AM, Myles C. Maxfield
myles.maxfi...@gmail.com wrote:
Thanks for responding to this. Some responses are inline.
On Sat, Apr 14, 2012 at 8:30 PM, Michael Snoyman mich...@snoyman.com wrote:
[snip]
No, nothing so complicated is intended. Most likely you'll never
I'm not really certain of your previous example, but what you're
describing here is data loss. AFAIK, this is inherent to any kind of
streaming approach. Have a look at the chapter in the Yesod book on
conduit, the description of data loss is still accurate.
On Mon, Apr 16, 2012 at 3:46 AM, Myles
On Mon, Apr 16, 2012 at 2:50 AM, grant the...@hotmail.com wrote:
Hi, I am trying to use process-conduit on windows, but it appears to hang
when using the conduitCmd.
Is there a reason why this doesn't work?
Thanks for any help,
Grant
I have made an attempt to create a version of process
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