Reference to an object disregarding mutation - what's the trick?

[Steve Teale]

Manfred Nowak Wrote:

> Steve Teale wrote
> 
> > OK, here's the full story.
> 
> What clumsy data structure might be organized by that?
> 
> That seems to be 
>   arr= arr[ 0 .. findex] ~ newnode ~ arr[ findex .. arr.length];
> and nothing more.
> 
> -manfred

Fair comment - I'm clearly still thinking somewhere back in C!