Mac Apps That Use Garbage Collection Must Move to ARC

[via Digitalmars-d]

On Monday, 23 February 2015 at 08:33:59 UTC, Tobias Pankrath 
wrote:
> You mean when there are more than 2^64 references to the object?

I mean that the optimizer does not know what _rc is. The 
optimizer can only elide what it can prove, by sound logic, not 
by assumptions.