So, your whole method looks like: void start_accept() { tcp_connection::pointer new_connection = tcp_connection::create(acceptor_.get_io_service()); std::function<void(const boost::system::error_code &error)> callback = std::bind(&tcp_server::handle_accept, this, new_connection, std::placeholders::_1); acceptor_.async_accept(new_connection->socket(), callback); } Seems to compile. I really don't understand how we are binding arguments that the template parameters did not specify the std::function to take. Can I pass it a cow or a moose too and it won't care? As long as the callback takes a cow and a moose? I thought all arguments had to be specified in the template params. On Wed, Mar 29, 2017 at 8:28 AM, Steven Watanabe via Boost-users < boost-users@lists.boost.org> wrote:
AMDG
On 03/29/2017 07:07 AM, Christopher Pisz via Boost-users wrote:
If I change it to std::function<void(const boost::system::error_code &error)> callback = ...
then the connection is not passed.
Yes it is. The connection is stored inside the std::function.
If it is not passed, then there is no way to store it, change its state, etc. It is passed in the tutorial code, so why can't I pass it with std::function?
In Christ, Steven Watanabe
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users