You've been unsubscribed from the libraries list. John On Thu, Jul 5, 2018, at 4:39 PM, pedro neves wrote:

Hello All,

Can you please remove me from this e-mail string ...

I don't know how I got added ... Thank you.

On Thu, Jul 5, 2018 at 11:10 AM Joachim Breitner wrote:>> Hi

...

Am Donnerstag, den 05.07.2018, 15:36 +0200 schrieb Gabor Greif:

...

Hi!

Just searched for a `bimap` variant that simultaneously transforms>> > both components with the same morphism:

``` haskell diag :: Bifunctor p => (a -> b) -> p a a -> p b b diag f = bimap f f ```

I did not find any. Would it make sense to add it?

possibly, I have wanted it too before.

Bikeshedding: I’d have expected the name “both”. It also has precedence here: http://hackage.haskell.org/package/extra/docs/Data-Tuple-Extra.html#v:both>> http://hackage.haskell.org/package/concatenative/docs/Control-Concatenative.html#v:both>> http://hackage.haskell.org/package/MissingK/docs/Control-Arrow-Extra.html#v:both>> http://hackage.haskell.org/package/lens-family/docs/Lens-Family2-Stock.html#v:both>> http://hackage.haskell.org/package/lens/docs/Control-Lens-Traversal.html#v:both>> Diagonally sounds more like something of type `a -> (a,a)` or similar.>>

...

PPS: I would have sent this to libraries@haskell.org but it seem to be>> > closed group.

It should not. Maybe only open to subscribers? (A common crude anti->> spam measurement.)

Cheers, Joachim

-- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/ _______________________________________________ Libraries mailing list Libraries@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries

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