non-determinant object lifetime and memory management

[bearophile]

Frustrated:

> I need to pass around some objects(specifically int[]) that may 
> be used by several other objects at the same time. While I 
> could clone these and free them when the parent object is done 
> this wastes memory for no real reason except ease of use.
>
> Since many objects may contain a ptr to the array, what would 
> be the best way to deal with deallocating them? I could wrap 
> the array in a collection an use ARC but is there a better way?
>
> Is there something in std.allocators that can help?
>
> (Should be obvious that I'm trying to avoid the GC)

Your use case seems fit for using the GC.

Otherwise take a look at std.typecons.RefCounted, to be used in a 
wrapper that uses "alias this".

Bye,
bearophile