<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>basic_stream_socket::open (2 of 2 overloads)</title> <link rel="stylesheet" href="../../../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> <link rel="home" href="../../../../index.html" title="Asio"> <link rel="up" href="../open.html" title="basic_stream_socket::open"> <link rel="prev" href="overload1.html" title="basic_stream_socket::open (1 of 2 overloads)"> <link rel="next" href="../operator_eq_.html" title="basic_stream_socket::operator="> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../../asio.png"></td></tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="overload1.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../open.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="../operator_eq_.html"><img src="../../../../next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h5 class="title"> <a name="asio.reference.basic_stream_socket.open.overload2"></a><a class="link" href="overload2.html" title="basic_stream_socket::open (2 of 2 overloads)">basic_stream_socket::open (2 of 2 overloads)</a> </h5></div></div></div> <p> <span class="emphasis"><em>Inherited from basic_socket.</em></span> </p> <p> Open the socket using the specified protocol. </p> <pre class="programlisting">void open( const protocol_type & protocol, asio::error_code & ec); </pre> <p> This function opens the socket so that it will use the specified protocol. </p> <h6> <a name="asio.reference.basic_stream_socket.open.overload2.h0"></a> <span><a name="asio.reference.basic_stream_socket.open.overload2.parameters"></a></span><a class="link" href="overload2.html#asio.reference.basic_stream_socket.open.overload2.parameters">Parameters</a> </h6> <div class="variablelist"> <p class="title"><b></b></p> <dl> <dt><span class="term">protocol</span></dt> <dd><p> An object specifying which protocol is to be used. </p></dd> <dt><span class="term">ec</span></dt> <dd><p> Set to indicate what error occurred, if any. </p></dd> </dl> </div> <h6> <a name="asio.reference.basic_stream_socket.open.overload2.h1"></a> <span><a name="asio.reference.basic_stream_socket.open.overload2.example"></a></span><a class="link" href="overload2.html#asio.reference.basic_stream_socket.open.overload2.example">Example</a> </h6> <pre class="programlisting">asio::ip::tcp::socket socket(my_context); asio::error_code ec; socket.open(asio::ip::tcp::v4(), ec); if (ec) { // An error occurred. } </pre> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. Kohlhoff<p> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="overload1.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../open.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="../operator_eq_.html"><img src="../../../../next.png" alt="Next"></a> </div> </body> </html>