Mark partial functions as such

[Daniel Díaz Casanueva]

+1 from me too. The partiality of a function seems to me like something
that should be documented.

Best,
Daniel

Am Fr., 31. Aug. 2018 um 02:10 Uhr schrieb Richard Eisenberg <
rae at cs.brynmawr.edu>:

> Proposal: Mark partial functions in `base` as partial
>
> Motivation: I'm about to teach Haskell to a classful of beginners. In my
> experience, they will soon reach for functions like `head` and `tail`,
> because pattern-matching is foreign to them. I would love just to be able
> to say "Don't use partial functions", but many students will not easily be
> able to tell partial functions from total ones.
>
> I do expect this problem to work itself out rather quickly, and then
> students will be able to identify partial functions, but loudly marking
> partial functions as partial seems like a small service to everyone and a
> bigger one to newbies. I don't see any downsides.
>
> Thoughts?
>
> Thanks,
> Richard
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