func sync/atomic.CompareAndSwapInt64

2 uses

	sync/atomic (current package)
		doc.go#L77: func CompareAndSwapInt64(addr *int64, old, new int64) (swapped bool)

	go.opentelemetry.io/otel/api/metric
		number.go#L416: 	return atomic.CompareAndSwapInt64(n.AsInt64Ptr(), oi, ni)