function with zmq::recv_flags::none show it have suitable impleiment?

[fengmao31]

I find I can use zmq::send_flags::none in the pulisher, but I cannot use zmq::recv_flags::none. I can find the impleiment in the zmq.hpp. It looks a bug in the zmq.hpp.

[gummif]

Try passing message by reference not pointer (zmqmsg).