On Tue, Aug 14, 2018, 19:26 Tom Ellis <tom-lists-haskell-cafe-2017@jaguarpaw.co.uk> wrote:

On Tue, Aug 14, 2018 at 05:22:00PM +0200, Damian Nadales wrote:
> Ok, so if understood the bottom line of the answers I got from Vanessa and
> Hiromi the take away seems to be: if you're prototyping then stick to the
> lazy version of sum, otherwise use more advanced data structures (Vectors
> or Folds).

I can't say I understand that bottom line. A strict sum seems like a very
obvious thing to want to feature very prominently in whatever set of
utilities you choose to base your system on.

Any idea why Prelude does not ship a sum' version? (i.e. a strict version of sum)

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