On Saturday, 14 January 2017 at 15:41:01 UTC, Dmitry Olshansky
wrote:
That is C++ smart_ptr has to be atomic, while its D counter
part may safely be non-atomic because everything is TLS be
default.
I assume you mean std::shared_ptr. The reference counting
semantics are atomic, but the I don't think the compiler is
required to if it provably isn't shared. There are also ways to
get around it if needed (you only need atomic count when you
enter or leave a context, e.g. thread).
Of course, there are C++ single threaded alternatives with
intrusive ref counting, which I believe is what D is going for.
shared_ptr is non-intrusive (doesn't affect allocation or object
types).
