I found a below discussion in rails. (via google)
https://github.com/rails/rails/pull/1932

It has a same name and aims to same goal.
And it was estimated "too specific".

I think too, but this name not recall other case for me.
uhh...

2012/1/17 Abinoam Jr. <abinoam / gmail.com>:
> On Tue, Jan 17, 2012 at 7:58 AM, Kenichi Kamiya <kachick1 / gmail.com> wrote:
>> # if Enumerable has method for this case
>> https://gist.github.com/1625981
>
> I would like to have it.
>
> We can discuss it better here at ruby talk to see the pros and cons.
> If somebody is able to do the C code of it...
> Perhaps we could issue a feature request.
>
> Abinoam Jr.
>

-- 
Kenichi Kamiya