Compare the CAS performance of the Swift wrapper vs. OSAtomic directly
Compare the CAS performance of the Swift wrapper vs. OSAtomic directly

The cost is 4 nanoseconds on a 7-year-old computer. Could be better, but it's not so bad.

ithron/swift-atomics,glessard/swift-atomics,ithron/swift-atomics,glessard/swift-atomics,ithron/swift-atomics,glessard/swift-atomics