On 3/14/2012 10:52, clipka wrote:
> But doesn't the "this-pointer tracking" in a reference-tracking GC approach
> incur approximately that very same penalty?

No, because it's not counting references. The efficiency of GC over RC is to 
a large extent the elimination of updating something every time you assign a 
pointer.  The GC runs, sees a reference to B on the stack, and avoids 
discarding B.  C++ programs don't have access to the stack per se, so they 
can't do that sort of thing.

-- 
Darren New, San Diego CA, USA (PST)
   People tell me I am the counter-example.

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