[Haskell-cafe] Newbie question: Where is StackOverflow on the Wiki?

[Peter Verswyvelen]

Thanks. I got confused because the StackOverflow link on

http://www.haskell.org/haskellwiki/HaWiki_migration

is dead.

-----Original Message-----
From: Derek Elkins [mailto:derek.a.elkins at gmail.com] 
Sent: Saturday, August 18, 2007 8:54 PM
To: Peter Verswyvelen
Cc: haskell-cafe at haskell.org
Subject: Re: [Haskell-cafe] Newbie question: Where is StackOverflow on the
Wiki?

On Sat, 2007-08-18 at 20:35 +0200, Peter Verswyvelen wrote:
> When reading an article about tail recursion
>
(http://themechanicalbride.blogspot.com/2007/04/haskell-for-c-3-programmers.
> html) I came across the follow statements:
> 
> "If you can write a non-recursive function that uses the colon syntax it
is
> probably better than a tail recursive one that doesn't. This is because
> Haskell's lazy evaluation enabled you to use the non-tail recursive
version
> on an infinite stream without getting a stack overflow. "
> 
> and
> 
> ""Unfortunately", laziness "gets in the way". While transforming
> non-tail-recursive code to a tail-recursive form is important and useful
for
> functional programming in general, dealing with laziness requires a little
> more care, and often "non-tail-recursive" versions are preferrable.
flatten
> is an example of this, the first version is better in many ways. While I
> don't believe it happens in this case, oftentimes naively writing code
> "tail-recursively" in Haskell will actually -make- it overflow the stack.
> Another (actual) benefit of the first version of flatten is that it will
> work on infinite lists. http://www.haskell.org/hawiki/StackOverflow gives
a
> simple example and some explanation."

That page was migrated here:
http://www.haskell.org/haskellwiki/Stack_overflow