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<a name="boost.movelib.default_delete"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Struct template default_delete</span></h2>
<p>boost::movelib::default_delete</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="comment">// In header: <<a class="link" href="../../move/reference.html#header.boost.move.default_delete_hpp" title="Header <boost/move/default_delete.hpp>">boost/move/default_delete.hpp</a>>
</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">{</span>
<span class="comment">// <a class="link" href="default_delete.html#boost.movelib.default_deleteconstruct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="default_delete.html#idp898574592-bb"><span class="identifier">default_delete</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="default_delete.html#idp898575296-bb"><span class="identifier">default_delete</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span> <a class="link" href="default_delete.html#idp898579568-bb"><span class="identifier">default_delete</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a><span class="special"><</span> <span class="identifier">U</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span> <a class="link" href="default_delete.html#idp898577152-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span>
<a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span> <a class="link" href="default_delete.html#idp898586560-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a><span class="special"><</span> <span class="identifier">U</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="comment">// <a class="link" href="default_delete.html#idp898563152-bb">public member functions</a></span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span> <span class="keyword">void</span> <a class="link" href="default_delete.html#idp898563712-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">U</span> <span class="special">*</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="default_delete.html#idp898570736-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">nullptr_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp506304240"></a><h2>Description</h2>
<p>The class template <code class="computeroutput"><a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a></code> serves as the default deleter (destruction policy) for the class template <code class="computeroutput"><a class="link" href="unique_ptr.html" title="Class template unique_ptr">unique_ptr</a></code>.</p>
<p>
</p>
<div class="refsect2">
<a name="idp506307984"></a><h3>Template Parameters</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><span class="keyword">typename</span> T</pre>
<p>The type to be deleted. It may be an incomplete type </p>
</li></ol></div>
</div>
<div class="refsect2">
<a name="idp506311136"></a><h3>
<a name="boost.movelib.default_deleteconstruct-copy-destruct"></a><code class="computeroutput">default_delete</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idp898574592-bb"></a><span class="identifier">default_delete</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Default constructor. </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idp898575296-bb"></a><span class="identifier">default_delete</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span></pre>
<p>Trivial copy constructor </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span> <a name="idp898579568-bb"></a><span class="identifier">default_delete</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a><span class="special"><</span> <span class="identifier">U</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Constructs a <code class="computeroutput"><a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a></code> object from another <code class="computeroutput">default_delete<U></code> object.</p>
<p><span class="bold"><strong>Remarks</strong></span>: This constructor shall not participate in overload resolution unless:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>If T is not an array type and U* is implicitly convertible to T*.</p></li>
<li class="listitem"><p>If T is an array type and U* is a more CV qualified pointer to remove_extent<T>::type. </p></li>
</ul></div>
<p>
</p>
</li>
<li class="listitem">
<pre class="literallayout"><a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span> <a name="idp898577152-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span></pre>
<p>Trivial assignment </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span>
<a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> <span class="special">&</span> <a name="idp898586560-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a><span class="special"><</span> <span class="identifier">U</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Constructs a <code class="computeroutput"><a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a></code> object from another <code class="computeroutput">default_delete<U></code> object.</p>
<p><span class="bold"><strong>Remarks</strong></span>: This constructor shall not participate in overload resolution unless:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>If T is not an array type and U* is implicitly convertible to T*.</p></li>
<li class="listitem"><p>If T is an array type and U* is a more CV qualified pointer to remove_extent<T>::type. </p></li>
</ul></div>
<p>
</p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp506365312"></a><h3>
<a name="idp898563152-bb"></a><code class="computeroutput">default_delete</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> U<span class="special">></span> <span class="keyword">void</span> <a name="idp898563712-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">U</span> <span class="special">*</span> ptr<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: if T is not an array type, calls <code class="computeroutput">delete</code> on static_cast<T*>(ptr), otherwise calls <code class="computeroutput">delete[]</code> on static_cast<remove_extent<T>::type*>(ptr).</p>
<p><span class="bold"><strong>Remarks</strong></span>: If U is an incomplete type, the program is ill-formed. This operator shall not participate in overload resolution unless:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>T is not an array type and U* is convertible to T*, OR</p></li>
<li class="listitem"><p>T is an array type, and remove_cv<U>::type is the same type as remove_cv<remove_extent<T>::type>::type and U* is convertible to remove_extent<T>::type*. </p></li>
</ul></div>
<p>
</p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp898570736-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">nullptr_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Same as <code class="computeroutput">(<span class="emphasis"><em>this)(static_cast<element_type</em></span>>(nullptr))</code>. </p>
</li>
</ol></div>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2008-2014 Ion Gaztanaga<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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