[ash_gti]

> It doesn't break ARC right, it just won't do the automatic reference counting in C++ source. You can send it back and forth over the wall with CFBridgingRetain and CFBridgingRelease no?

I guess I should say that clang's ARC doesn't apply to these c++ wrappers.

The c++ code is loading symbols using the objc runtime API's to load symbols and call objc runtime APIs to dispatch the metal calls. So, you could pass these references to other objc code and it should have the correct refcounts afterwards.

Having to manually retain/release objects is a bit of a pain, but its workable.

Using a c++ RAII type to retain/release is also somewhat do-able, but I worked in a codebase that had that kind of code and it can be frustrating to get the refcounts to be correct synchronized. Although that was back with c++11, so I'm sure things have changed that would make this easier today.

[arcticbull]

Thanks for the follow-up!