The error in the subject line occurs when attempting to assign a native socket to a Boost.Asio socket. I realize it&#39;s not very helpful since I&#39;m not explaining where I am getting nativeSocket, but I was hoping someone let me know in general the cause of such an error, since there doesn&#39;t appear to be any documentation on it. I am almost positive that it is a valid socket, and its integer value is normally around 740.<div>
<br></div><div>boost::asio::io_service ioserv;</div><div>boost::asio::ip::tcp::socket s(ioserv);</div><div><br></div><div>boost::system::error_code error;</div><div><div>s.assign(boost::asio::ip::tcp::v4(), nativeSocket, error);</div>
<div>if (error) cout &lt;&lt; error.message() &lt;&lt; endl;</div></div>