The worst Phobos template (in binderoo)

[Stefan Koch via Digitalmars-d]

On Thursday, 15 September 2016 at 14:43:16 UTC, Stefan Koch wrote:
> On Thursday, 15 September 2016 at 14:38:41 UTC, Andrei 
> Alexandrescu wrote:
>> On 09/15/2016 10:08 AM, Stefan Koch wrote:
>>> static foreach on the other hand is a whole new can of worms.
>>> As walter will be able to tell you.
>>
>> It's time to open it. -- Andrei
>
> Please give me an example on how it should work.

Are we talking about http://wiki.dlang.org/DIP57 ?

I think I can give you a partial solution for that.
The Performance-Penalty will be less then on templates.

However I can smell a bunch of un-intuitive corner-cases hiding 
in there.