Proposal: add 'equating' function to Data.List

Frerich Raabe raabe at
Sat Jul 19 21:35:30 UTC 2014

On 2014-07-18 23:11, Andreas Abel wrote:
> I am not super excited about library functions like
>   comparing = (compare `on`)
>   equating  = ((==) `on`)
> It is rather knowledge how to use 'on', a programming pattern.

I concur, but at the same time the argument given on this list by Robert 
Dockins' about seven years ago ( ) seems 
compelling, too. Incidentally, the mail is form the thread in which the term 
Fairbairn threshold was coined.

- Frerich

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