Now that we require libzmq 4.1+, zmq::has() always returns Some(bool), so it should return a plain bool, without wrapping it in an option. This is a breaking change, so it needs to be done in the next API-breaking release (i.e., 0.10.0 at the time of writing).
Now that we require libzmq 4.1+,
zmq::has()always returnsSome(bool), so it should return a plainbool, without wrapping it in an option. This is a breaking change, so it needs to be done in the next API-breaking release (i.e., 0.10.0 at the time of writing).