RCArray is unsafe

Zach the Mystic via Digitalmars-d digitalmars-d at puremagic.com
Mon Mar 2 17:31:57 PST 2015

On Tuesday, 3 March 2015 at 01:23:24 UTC, Zach the Mystic wrote:
> Which makes me think about a bigger problem... when you 
> opAssign, don't you redirect the variable to a different 
> instance? Won't the destructor then destroy *that* instance (or 
> not destroy it, since it just got a +1 count) instead of the 
> one most recently decremented? How does it hold onto the 
> instance to be destroyed?

auto y = new RcStruct;
y = null;

y's old RcStruct gets decremented to zero, but who owns it now? 
Whose destructor ever gets run on it?

More information about the Digitalmars-d mailing list