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+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>Class template reference_wrapper</title>
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+<div class="refnamediv">
+<h2><span class="refentrytitle">Class template reference_wrapper</span></h2>
+<p>boost::reference_wrapper &#8212;
+ Contains a reference to an object of type
+ <code class="computeroutput">T</code>.
+ </p>
+</div>
+<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
+<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T&gt;
+<span class="bold"><strong>class</strong></span> reference_wrapper {
+<span class="bold"><strong>public</strong></span>:
+  <span class="emphasis"><em>// types</em></span>
+  <span class="bold"><strong>typedef</strong></span> T type;
+
+  <span class="emphasis"><em>// <a href="reference_wrapper.html#reference_wrapperconstruct-copy-destruct">construct/copy/destruct</a></em></span>
+  <span class="bold"><strong>explicit</strong></span> <a href="reference_wrapper.html#id2496965-bb">reference_wrapper</a>(T&amp;);
+
+  <span class="emphasis"><em>// <a href="reference_wrapper.html#id2365507-bb">access</a></em></span>
+  <a href="reference_wrapper.html#id2365512-bb"><span class="bold"><strong>operator</strong></span> T&amp;</a>() <span class="bold"><strong>const</strong></span>;
+  <span class="type">T&amp;</span> <a href="reference_wrapper.html#id2357385-bb">get</a>() <span class="bold"><strong>const</strong></span>;
+  <span class="type">T*</span> <a href="reference_wrapper.html#id2490294-bb">get_pointer</a>() <span class="bold"><strong>const</strong></span>;
+};
+
+<span class="emphasis"><em>// <a href="reference_wrapper.html#id2366485-bb">constructors</a></em></span>
+<span class="type">reference_wrapper&lt;T&gt;</span> <a href="reference_wrapper.html#id2366489">ref</a>(T&amp;);
+<span class="type">reference_wrapper&lt;T <span class="bold"><strong>const</strong></span>&gt;</span> <a href="reference_wrapper.html#cref">cref</a>(T <span class="bold"><strong>const</strong></span>&amp;);</pre></div>
+<div class="refsect1" lang="en">
+<a name="id2730530"></a><h2>Description</h2>
+<p><code class="computeroutput"><a href="reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a></code>
+ is primarily used to "feed" references to function templates
+ (algorithms) that take their parameter by value. It provides
+ an implicit conversion to
+ <code class="computeroutput">T&amp;</code>, which usually allows
+ the function templates to work on references
+ unmodified.</p>
+<div class="refsect2" lang="en">
+<a name="id2730555"></a><h3>
+<a name="reference_wrapperconstruct-copy-destruct"></a><code class="computeroutput">reference_wrapper</code> construct/copy/destruct</h3>
+<div class="orderedlist"><ol type="1"><li>
+<pre class="literallayout"><span class="bold"><strong>explicit</strong></span> <a name="id2496965-bb"></a>reference_wrapper(T&amp; t);</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
+
+ Constructs a
+ <code class="computeroutput"><a href="reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a></code>
+ object that stores a reference to
+ <code class="computeroutput">t</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li></ol></div>
+</div>
+<div class="refsect2" lang="en">
+<a name="id2730629"></a><h3>
+<a name="id2365507-bb"></a><code class="computeroutput">reference_wrapper</code> access</h3>
+<div class="orderedlist"><ol type="1">
+<li>
+<pre class="literallayout"><a name="id2365512-bb"></a><span class="bold"><strong>operator</strong></span> T&amp;() <span class="bold"><strong>const</strong></span>;</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
+
+ The stored reference.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li>
+<li>
+<pre class="literallayout"><span class="type">T&amp;</span> <a name="id2357385-bb"></a>get() <span class="bold"><strong>const</strong></span>;</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
+
+ The stored reference.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li>
+<li>
+<pre class="literallayout"><span class="type">T*</span> <a name="id2490294-bb"></a>get_pointer() <span class="bold"><strong>const</strong></span>;</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
+
+ A pointer to the object referenced by the stored reference.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li>
+</ol></div>
+</div>
+<div class="refsect2" lang="en">
+<a name="id2730771"></a><h3>
+<a name="id2366485-bb"></a><code class="computeroutput">reference_wrapper</code> constructors</h3>
+<div class="orderedlist"><ol type="1">
+<li>
+<pre class="literallayout"><span class="type">reference_wrapper&lt;T&gt;</span> <a name="id2366489"></a>ref(T&amp; t);</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
+
+ <code class="computeroutput"><a href="reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;T&gt;(t)</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li>
+<li>
+<pre class="literallayout"><span class="type">reference_wrapper&lt;T <span class="bold"><strong>const</strong></span>&gt;</span> <a name="cref"></a>cref(T <span class="bold"><strong>const</strong></span>&amp; t);</pre>
+<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
+
+ <code class="computeroutput"><a href="reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;T const&gt;(t)</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
+
+ Does not throw.</p>
+</li>
+</ol></div>
+</div>
+</div>
+</div>
+<table width="100%"><tr>
+<td align="left"></td>
+<td align="right"><small>Copyright © 1999, 2000 Jaakko Järvi<br>Copyright © 2001, 2002 Peter Dimov<br>Copyright © 2002 David Abrahams</small></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
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+</div>
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+</html>