Array Operations: a[] + b[] etc.

[Robert Jacques]

On Thu, 22 Nov 2012 06:10:04 -0600, John Colvin  
<john.loughran.colvin at gmail.com> wrote:

> On Wednesday, 21 November 2012 at 19:40:25 UTC, Mike Wey wrote:
>> If you want to use this syntax with images, DMagick's ImageView might  
>> be interesting:
>> http://dmagick.mikewey.eu/docs/ImageView.html
>
> I like it :)
>  From what I can see it provides exactly what i'm talking about for 2D.  
> I haven't looked at the implementation in detail, but do you think that  
> such an approach could be scaled up to arbitrary N-dimensional arrays?

Yes and no. Basically, like an array, an ImageView is a thick pointer and  
as the dimensions increase the pointer gets thicker by 1-2 words a  
dimension. And each indexing or slicing operation has to create a  
temporary with this framework, which leads to stack churn as the  
dimensions get large. An another syntax that can be used until we get  
true, multi-dimensional slicing is to use opIndex with int[2] arguments,  
i.e: view[[4,40],[5,50]] = new Color("red");