zGuide for zeroMQ編譯失敗

Question

我試圖構建zguide C++示例，但編譯失敗。以下是錯誤輸出中：

asyncsrv.cpp: In member function ‘void client_task::start()’: 
asyncsrv.cpp:37:70: error: cannot convert ‘zmq::socket_t’ to ‘void*’ in initialization zmq::pollitem_t items[] = {{client_socket_, 0, ZMQ_POLLIN, 0}}; 

asyncsrv.cpp: In member function ‘void server_task::run()’: asyncsrv.cpp:140:52: error: cannot convert ‘zmq::socket_t’ to ‘void*’ for argument ‘1’ to ‘void zmq::proxy(void*, void*, void*)’ zmq::proxy(frontend_, backend_, nullptr); 

Answer 1

如果您使用的是C++編譯器11，看到你的zmq.hpp是最新版本，並通過

std::vector<zmq::pollitem_t> items = {{static_cast<void *>(client_socket_), 0, ZMQ_POLLIN, 0}}; 

更換線

zmq::pollitem_t items[] = {{client_socket_, 0, ZMQ_POLLIN, 0}}; 

and line

zmq::proxy(frontend_, backend_, nullptr); 

by

zmq::proxy(static_cast<void *>(frontend_), static_cast<void *>(backend_), nullptr);