The latest on consume: <a href="http:&#x2F;&#x2F;wg21.link&#x2F;p0190r0" rel="nofollow">http:&#x2F;&#x2F;wg21.link&#x2F;p0190r0</a><p>The spec is pretty sound, but unimplemented because that&#x27;s not how compilers work right now for the generality that consume wants. I think the above proposal is likely to work because it&#x27;s more restrictive towards how consume works, but we need implementation experience.<p>Linux uses consume extensively for RCU, and I don&#x27;t think it&#x27;ll go away soon because of the benefits it provides to Power and ARM. It works through a gentleperson&#x27;s agreement between Linux&#x27;s RCU implementation in C and GCC.