78 lines
5.4 KiB
HTML
78 lines
5.4 KiB
HTML
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>ip::v6_only</title>
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<link rel="stylesheet" href="../../boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
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<link rel="home" href="../../index.html" title="Asio">
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<link rel="up" href="../reference.html" title="Reference">
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<link rel="prev" href="ip__v4_mapped_t.html" title="ip::v4_mapped_t">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="ip__v4_mapped_t.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.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="is_applicable_property.html"><img src="../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.ip__v6_only"></a><a class="link" href="ip__v6_only.html" title="ip::v6_only">ip::v6_only</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.ip__v6_only"></a>
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</p>
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<p>
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Socket option for determining whether an IPv6 socket supports IPv6 communication
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only.
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</p>
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<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <span class="identifier">v6_only</span><span class="special">;</span>
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</pre>
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<p>
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Implements the IPPROTO_IPV6/IPV6_V6ONLY socket option.
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</p>
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<h5>
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<a name="asio.reference.ip__v6_only.h0"></a>
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<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>
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</h5>
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<p>
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Setting the option:
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</p>
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<pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">my_context</span><span class="special">);</span>
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<span class="special">...</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">v6_only</span> <span class="identifier">option</span><span class="special">(</span><span class="keyword">true</span><span class="special">);</span>
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<span class="identifier">socket</span><span class="special">.</span><span class="identifier">set_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span>
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</pre>
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<p>
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Getting the current option value:
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</p>
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<pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">my_context</span><span class="special">);</span>
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<span class="special">...</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">v6_only</span> <span class="identifier">option</span><span class="special">;</span>
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<span class="identifier">socket</span><span class="special">.</span><span class="identifier">get_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span>
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<span class="keyword">bool</span> <span class="identifier">v6_only</span> <span class="special">=</span> <span class="identifier">option</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span>
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</pre>
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<h5>
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<a name="asio.reference.ip__v6_only.h1"></a>
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<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>
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</h5>
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<p>
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<span class="emphasis"><em>Header: </em></span><code class="literal">asio/ip/v6_only.hpp</code>
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</p>
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<p>
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<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
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</p>
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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</p>
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</div>
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<hr>
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<div class="spirit-nav">
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