On Saturday 27 June 2009 18:31:25 Günther Schmidt wrote:
Hi guys,
is there a mailing list for haskellers that defected to F#?
Here's the F# mailing list on Google Groups:
http://groups.google.com/group/fsharp?hl=en
--
Dr Jon Harrop, Flying Frog Consultancy Ltd.
Hi guys,
is there a mailing list for haskellers that defected to F#?
Not that I was I going to, just asking, absolutely hypothetically. Uhm.
Günther
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Hi Günther, I would be interested in one too. I'm a Haskeller
currently working for an F# shop. There's hubFS but I would absolutely
prefer a mailing list. --A
On Sat, Jun 27, 2009 at 8:31 PM, GüŸnther Schmidtgue.schm...@web.de wrote:
Hi guys,
is there a mailing list for haskellers that
Hi Luke,
On Fri, Jan 16, 2009 at 2:31 AM, Luke Palmer lrpal...@gmail.com wrote:
However, I think it is flawed, since the following
case c of
Polar _ _ - it's polar!
Rect _ _ - it's rect!
seems like valid code but does not make any sense.
I think it's okay, given that we
2009/1/16 Peter Verswyvelen bugf...@gmail.com
[...]
After a while you decide that you need to change the Bla data type, maybe
give Dog more fields, maybe completely redesign it, maybe not exposing it,
but you want to keep existing code backwards compatible. With F# you can
write Active
On Fri, 16 Jan 2009, John Van Enk wrote:
2009/1/16 Peter Verswyvelen bugf...@gmail.com
[...]
After a while you decide that you need to change the Bla data type, maybe
give Dog more fields, maybe completely redesign it, maybe not exposing it,
but you want to keep existing code backwards
As far as I understand, record syntax and data accessor only give access to
the data, they don't provide alternate views / interpretations of the data,
something that Active Patterns or view patterns in Haskell do?
On Fri, Jan 16, 2009 at 4:27 PM, Henning Thielemann
lemm...@henning-thielemann.de
Peter,
I think that's correct. I would really love to be able to make alternate
constructors and views. I know we can make specialized constructors, but I
don't think there's a good way to pattern match on these. It would be pretty
sweet if we could.
/jve
On Fri, Jan 16, 2009 at 11:14 AM, Peter
When I first read about active patterns in F#, I found it really cool idea,
since it allows creating fake data constructors that can be used for pattern
matching, giving many views to a single piece of data, and allowing
backwards compatibility when you completely change or hide a data structure.
I've often thought having constructor views would be handy.
data Foo = Foo A B C D E F G H I
view Bar = (Foo A _ C _ _ _ G _ I) = Bar A C G I
This does bring up problems with case alternatives though.
I think the correct answer for these kinds of views is with the record
pattern matching
If you don't mind using GHC extensions (which in a view pattern thread
probably isn't much of a stretch to assume :) ), there's always record
punning (-XNamedFieldPuns):
data Foo = { [snip] }
f (Foo { a, g }) = ...
2009/1/15 John Van Enk vane...@gmail.com:
I've often thought having
2009/1/15 Peter Verswyvelen bugf...@gmail.com
When I first read about active patterns in F#, I found it really cool idea,
since it allows creating fake data constructors that can be used for pattern
matching, giving many views to a single piece of data, and allowing
backwards compatibility
On Feb 11, 2008 2:27 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hallo!
I have this code:
q1 :: EName - [ApprenticeInfo]
q1 c = [apprenticeInfo n | n - allApprentices, member ((sq4
c) (firstOf5(n))) == True]
sq4 :: ESurname - [IDB]
sq4 c = (sq3
Hallo!
I have this code:
q1 :: EName - [ApprenticeInfo]
q1 c = [apprenticeInfo n | n - allApprentices, member ((sq4
c) (firstOf5(n))) == True]
sq4 :: ESurname - [IDB]
sq4 c = (sq3 (sq1 (c)))
firstOf5 :: (a,b,c,d,e) - a
firstOf5 (n,_,_,_,_) = n
member ::
I'm doing a lot of switching between ghc 6.6 and ghc 6.7 on the same
computer. I install modules using
$ runghc Setup.hs configure
etc.
I would like to specify which version of ghc should be getting the package
installed via the f flag to runghc
$
Subject
[Haskell-cafe] -f flag to runghc broken, or is it just me? (because trying
switch elegantly between ghc 6.6 and ghc 6.7)
I'm doing a lot of switching between ghc 6.6 and ghc 6.7 on the same
computer. I install modules using
$ runghc Setup.hs configure
etc.
I would like
this works. now if only there were a quiet option for ghci...
But there is! It's called -v0.
-Brent
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On Wed, Aug 22, 2007 at 01:38:39PM -0400, Thomas Hartman wrote:
$ runghc -f /usr/local/bin/ghc-6.6.1 arghandling-nice.hs
does nothing.
Contrary to the usage message, you aren't actually allowed a space after
-f in 6.6.1 (but you are in 6.7). Use
runghc -f/usr/local/bin/ghc-6.6.1
Has anyone tried out F#?
Is this a taboo subject here?
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I've been meaning to tackle F# as my ML of choice (seeing as I'll need
to get comfortable with .Net, I may as well hit two birds with one
stone).
I've been waiting for the text /Expert F#/ to come out, as it looks
/Foundations of F#/ is pitched towards someone learning their first
functional
On Tuesday 17 July 2007 14:53:20 Edward Ing wrote:
Has anyone tried out F#?
Yes. We've been using F# for 9 months now and have several products written in
it.
Is this a taboo subject here?
Probably. ;-)
--
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
OCaml for Scientists
| Has anyone tried out F#?
|
| Yes. We've been using F# for 9 months now and have several products
| written in
| it.
|
| Is this a taboo subject here?
| Probably. ;-)
Not at all! But there is a very active F# community that would be much more
knowledgeable about F# than Haskell folk are
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