Re: [Boost-users] boost::asio::asyn_accept handler

In any case, this is completely different code from what you had in your previous post. I already showed you what to use for your previous code.

What you showed me in the previous code did not work, it did not compile. I am trying to give a thorough complete minimal example, without the complexity of my own classes.

Now, have a look at the code you wrote:

const std::function callback = std::bind(&tcp_server::handle_accept, this, new_connection, std::placeholders::_1);

You are declaring a function that takes a tcp_connection::pointer and a const boost::system::error_code& as parameters -- that's two parameters. But you're only using one placeholder in the bind, which means that the second parameter doesn't go anywhere, which is probably not your intention.

Sigh. I know that code wouldn't work. That is my interpretation of what you gave me. Now you are talking about two arguments and placeholders, but why would I give it a place holder, when I am giving it the argument directly? the tcp_connection::pointer argument is new_connection. The placeholder is for the error code which I am not supplying directly. Either way, it still fails to compile if you add a std::placeholders::_2 on the end. Can we just get a compilable working example of the following method while maintaining the use of the std::function variable? I don't want to bind directly, I don't want to use lambda, I want to have an std::function variable that I can pass to others. It's really a simple 6 line problem.... The following code still fails to compile: void start_accept() { tcp_connection::pointer new_connection = tcp_connection::create(acceptor_.get_io_service()); std::function callback = std::bind(&tcp_server::handle_accept, this, new_connection, std::placeholders::_1); acceptor_.async_accept(new_connection->socket(), callback); } -- View this message in context: http://boost.2283326.n4.nabble.com/boost-asio-asyn-accept-handler-tp4693107p... Sent from the Boost - Users mailing list archive at Nabble.com.