opCmp with structs

[Alex via Digitalmars-d-learn]

On Saturday, 7 November 2015 at 14:36:25 UTC, Mike Parker wrote:

>>
>> So my general question is: why immutable variables shouldn't 
>> be able to be moved (inside an array)?
>>
> To be pedantic, sort isn't actually moving anything. It's 
> reassigning elements, i.e. a[1] = a[2]. The immutable member 
> makes it illegal to assign one instance of ku to another:
> But sort doesn't work that way. You'll need to take a different 
> approach to sort an array of ku.

Yeah... and I'm in the acceptance phase now ;) Do you have a 
hint, how this approach could be like?