[Haskell-cafe] definition of sum

[Keith Sheppard]

I asked a similar question a while ago on the cafe

http://www.haskell.org/pipermail/haskell-cafe/2009-June/thread.html#62772

On Wed, Mar 10, 2010 at 5:33 PM, TeXitoi <texitoi at texitoi.eu> wrote:
> After programming as an exercice the sum function, my version is
> faster than the Data.List's version. Looking at the source code,
> Data.List uses a foldl and not a foldl'. foldl' seems faster and
> allows to use very big lists. So, why is foldl used by Data.List for
> sum?
>
> --
> Guillaume Pinot               http://www.irccyn.ec-nantes.fr/~pinot/
>
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