[Haskell-cafe] Is there a library that has a strict version of `sum`?

[Brandon Allbery]

I suspect the only reason it includes sum at all is that the Report says it
must. Otherwise, well, it's a trivial fold and you can easily select the
strictness you want by how you phrase the fold.

On Tue, Aug 14, 2018 at 1:35 PM Damian <damian.only at gmail.com> wrote:

>
>
> On Tue, Aug 14, 2018, 19:26 Tom Ellis <
> tom-lists-haskell-cafe-2017 at 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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-- 
brandon s allbery kf8nh
allbery.b at gmail.com
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