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-<title>Chapter 34. Boost.Variant</title>
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<div><h2 class="title">
-<a name="variant"></a>Chapter 34. Boost.Variant</h2></div>
+<a name="variant"></a>Chapter 38. Boost.Variant</h2></div>
<div><div class="author"><h3 class="author">
<span class="firstname">Eric</span> <span class="surname">Friedman</span>
</h3></div></div>
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<div><p class="copyright">Copyright © 2002, 2003 Eric Friedman, Itay Maman</p></div>
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-<a name="id3793604"></a><p>Distributed under the Boost Software License, Version 1.0.
+<a name="idp522563024"></a><p>Distributed under the Boost Software License, Version 1.0.
(See accompanying file <code class="filename">LICENSE_1_0.txt</code> 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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<div class="toc">
<p><b>Table of Contents</b></p>
-<dl>
+<dl class="toc">
<dt><span class="section"><a href="variant.html#variant.intro">Introduction</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="variant.html#variant.abstract">Abstract</a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.recursive_variant_hpp">Header <boost/variant/recursive_variant.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.recursive_wrapper_hpp">Header <boost/variant/recursive_wrapper.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.apply_visitor_hpp">Header <boost/variant/apply_visitor.hpp></a></span></dt>
+<dt><span class="section"><a href="variant/reference.html#header.boost.variant.multivisitors_hpp">Header <boost/variant/multivisitors.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.get_hpp">Header <boost/variant/get.hpp></a></span></dt>
+<dt><span class="section"><a href="variant/reference.html#header.boost.variant.polymorphic_get_hpp">Header <boost/variant/polymorphic_get.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.bad_visit_hpp">Header <boost/variant/bad_visit.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.static_visitor_hpp">Header <boost/variant/static_visitor.hpp></a></span></dt>
<dt><span class="section"><a href="variant/reference.html#header.boost.variant.visitor_ptr_hpp">Header <boost/variant/visitor_ptr.hpp></a></span></dt>
<dt><span class="section"><a href="variant/misc.html">Miscellaneous Notes</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="variant/misc.html#variant.versus-any">Boost.Variant vs. Boost.Any</a></span></dt>
-<dt><span class="section"><a href="variant/misc.html#id3812199">Portability</a></span></dt>
+<dt><span class="section"><a href="variant/misc.html#idp525417744">Portability</a></span></dt>
<dt><span class="section"><a href="variant/misc.html#variant.troubleshooting">Troubleshooting</a></span></dt>
<dt><span class="section"><a href="variant/misc.html#variant.ack">Acknowledgments</a></span></dt>
</dl></dd>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="variant.intro"></a>Introduction</h2></div></div></div>
-<div class="toc"><dl>
+<div class="toc"><dl class="toc">
<dt><span class="section"><a href="variant.html#variant.abstract">Abstract</a></span></dt>
<dt><span class="section"><a href="variant.html#variant.motivation">Motivation</a></span></dt>
</dl></div>
single value</strong></span>."</p>
<p>Notable features of <code class="computeroutput"><a class="link" href="boost/variant.html" title="Class template variant">boost::variant</a></code>
include:</p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">Full value semantics, including adherence to standard
overload resolution rules for conversion operations.</li>
<li class="listitem">Compile-time type-safe value visitation via
<code class="computeroutput"><a class="link" href="boost/apply_visitor.html" title="Function apply_visitor">boost::apply_visitor</a></code>.</li>
<li class="listitem">Run-time checked explicit value retrieval via
- <code class="computeroutput"><a class="link" href="boost/get_id1573726.html" title="Function get">boost::get</a></code>.</li>
+ <code class="computeroutput"><a class="link" href="boost/get_idp94543392.html" title="Function get">boost::get</a></code>.</li>
<li class="listitem">Support for recursive variant types via both
<code class="computeroutput"><a class="link" href="boost/make_recursive_variant.html" title="Class template make_recursive_variant">boost::make_recursive_variant</a></code> and
<code class="computeroutput"><a class="link" href="boost/recursive_wrapper.html" title="Class template recursive_wrapper">boost::recursive_wrapper</a></code>.</li>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="variant.motivation"></a>Motivation</h3></div></div></div>
-<div class="toc"><dl>
+<div class="toc"><dl class="toc">
<dt><span class="section"><a href="variant.html#variant.motivation.problem">Problem</a></span></dt>
<dt><span class="section"><a href="variant.html#variant.motivation.solution">Solution: A Motivating Example</a></span></dt>
</dl></div>
or, more dangerously, a <code class="computeroutput">void*</code>). Objects of
concrete type may be then retrieved by way of a polymorphic downcast
construct (e.g., <code class="computeroutput">dynamic_cast</code>,
-<code class="computeroutput"><a class="link" href="boost/any_cast.html" title="Function any_cast">boost::any_cast</a></code>, etc.).</p>
+<code class="computeroutput"><a class="link" href="boost/any_cast_idp41191712.html" title="Function any_cast">boost::any_cast</a></code>, etc.).</p>
<p>However, solutions of this sort are highly error-prone, due
to the following:</p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<span class="emphasis"><em>Downcast errors cannot be detected at
compile-time.</em></span> Thus, incorrect usage of downcast