Proposal: improve the Data.Tree API

João Cristóvão jmacristovao at gmail.com
Mon Feb 24 11:11:00 UTC 2014


Yes, indeed, thats a totally different discussion I do not want to enter:
http://www.reddit.com/r/haskell/comments/xo05l/why_isnt_length_part_of_foldable/

So, I'll 'erase' the length function from the proposal, since:
* it's definition is not unanymous
* my definition (number of elements) is simple enough to be implemented in
several ways

Cheers
João



2014-02-24 10:48 GMT+00:00 Henning Thielemann <
schlepptop at henning-thielemann.de>:

> Am 24.02.2014 11:39, schrieb João Cristóvão:
>
>
>  -- | Length of the tree
>> length :: Tree a -> Int
>>
>
> This one could be implemented more generally (maybe additionally) in
> Data.Foldable. But this would be another proposal.
>
>
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