stackoverflow.com/questions/38688417/…

I almost forgot! I #undef deadDummy and spinDummy at the end so they don't pollute.

Excellent advice here. I'm fairly confident about my use of relaxed memory order. The effects of the chosen operations never reach outside of other synchronized operations because their original state is restored before returning to the caller. I haven't used forwarding (C++11 is still kinda new to me) or swap much before. I'll try to remember the correct way! I agree with you regarding memory ordering requiring a certain level of guru-ness. I figure I have to do it wrong a bit before I'll get there. This was my first attempt. :) Thanks for your incredible insights!

Also, regarding the lambda. I'm thinking that the object construction that goes on in the background might be a slight performance hit. Any insights on this?

I sometimes forget to switch naming conventions when switching languages.