ip__v6_only.html
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<div class="titlepage"><div><div><h3 class="title">
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<p>
<a class="indexterm" name="asio.indexterm.ip__v6_only"></a>
Socket option for determining whether
an IPv6 socket supports IPv6 communication only.
</p>
<pre class="programlisting">typedef implementation_defined v6_only;
</pre>
<p>
Implements the IPPROTO_IPV6/IP_V6ONLY socket option.
</p>
<h5>
<a name="asio.reference.ip__v6_only.h0"></a>
<span><a name="asio.reference.ip__v6_only.examples"></a></span><a class="link" href="ip__v6_only.html#asio.reference.ip__v6_only.examples">Examples</a>
</h5>
<p>
Setting the option:
</p>
<pre class="programlisting">asio::ip::tcp::socket socket(my_context);
...
asio::ip::v6_only option(true);
socket.set_option(option);
</pre>
<p>
Getting the current option value:
</p>
<pre class="programlisting">asio::ip::tcp::socket socket(my_context);
...
asio::ip::v6_only option;
socket.get_option(option);
bool v6_only = option.value();
</pre>
<h5>
<a name="asio.reference.ip__v6_only.h1"></a>
<span><a name="asio.reference.ip__v6_only.requirements"></a></span><a class="link" href="ip__v6_only.html#asio.reference.ip__v6_only.requirements">Requirements</a>
</h5>
<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/ip/v6_only.hpp</code>
</p>
<p>
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
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<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>)
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