Safe reference counting cannot be implemented as a library

[rsw0x via Digitalmars-d]

On Sunday, 1 November 2015 at 20:55:00 UTC, Martin Nowak wrote:
> On 11/01/2015 09:51 PM, Martin Nowak wrote:
>> Any hint/numbers showing that this is actually useful?
>
> Also doesn't a good backend optimizer already fuse writes?

AFAIK the fear of RC being too slow comes from C++'s shared_ptr's 
reference count being required to be synchronized by the C++ 
spec, which heavily limits what kinds of optimizations that can 
be done on it. Thread-local by default RC should, in theory, be 
able to be optimized much much more aggressively.