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<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Struct template default_delete</title> <link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> <link rel="up" href="../../move/reference.html#header.boost.move.default_delete_hpp" title="Header <boost/move/default_delete.hpp>"> <link rel="prev" href="../move_upd/nullptr_type.html" title="Global nullptr_type"> <link rel="next" href="../move_iterator.html" title="Class template move_iterator"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> <td align="center"><a href="../../../../index.html">Home</a></td> <td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="../move_upd/nullptr_type.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../move/reference.html#header.boost.move.default_delete_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../move_iterator.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="refentry"> <a name="boost.movelib.default_delete"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Struct template default_delete</h2> boost::movelib::default_delete </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">// 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>> template<typename T> struct <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> { // <a class="link" href="default_delete.html#boost.movelib.default_deleteconstruct-copy-destruct">construct/copy/destruct</a> <a class="link" href="default_delete.html#idp157699584-bb">default_delete</a>(); <a class="link" href="default_delete.html#idp157700288-bb">default_delete</a>(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> &); template<typename U> <a class="link" href="default_delete.html#idp145813328-bb">default_delete</a>(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a>< U > &) noexcept; <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> & <a class="link" href="default_delete.html#idp145811328-bb">operator=</a>(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> &); template<typename U> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> & <a class="link" href="default_delete.html#idp50225504-bb">operator=</a>(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a>< U > &) noexcept; // <a class="link" href="default_delete.html#idp144586336-bb">public member functions</a> template<typename U> void <a class="link" href="default_delete.html#idp144586896-bb">operator()</a>(U *) const noexcept; void <a class="link" href="default_delete.html#idp157695728-bb">operator()</a>(std::nullptr_t) const noexcept; };</pre></div> <div class="refsect1"> <a name="idp330293840"></a><h2>Description</h2> 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>. <div class="refsect2"> <a name="idp330297520"></a><h3>Template Parameters</h3> <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> <pre class="literallayout">typename T</pre> The type to be deleted. It may be an incomplete type </li></ol></div> </div> <div class="refsect2"> <a name="idp330300672"></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="idp157699584-bb"></a>default_delete();</pre> Default constructor. </li> <li class="listitem"><pre class="literallayout"><a name="idp157700288-bb"></a>default_delete(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> &);</pre></li> <li class="listitem"> <pre class="literallayout">template<typename U> <a name="idp145813328-bb"></a>default_delete(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a>< U > &) noexcept;</pre> Effects: 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</code> object. Remarks: This constructor shall not participate in overload resolution unless: <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem">If T is not an array type and U* is implicitly convertible to T*.</li> <li class="listitem">If T is an array type and U* is a more CV qualified pointer to remove_extent<T>::type. </li> </ul></div> </li> <li class="listitem"><pre class="literallayout"><a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> & <a name="idp145811328-bb"></a>operator=(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> &);</pre></li> <li class="listitem"> <pre class="literallayout">template<typename U> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a> & <a name="idp50225504-bb"></a>operator=(const <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a>< U > &) noexcept;</pre> Effects: 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</code> object. Remarks: This constructor shall not participate in overload resolution unless: <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem">If T is not an array type and U* is implicitly convertible to T*.</li> <li class="listitem">If T is an array type and U* is a more CV qualified pointer to remove_extent<T>::type. </li> </ul></div> </li> </ol></div> </div> <div class="refsect2"> <a name="idp330354128"></a><h3> <a name="idp144586336-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">template<typename U> void <a name="idp144586896-bb"></a>operator()(U * ptr) const noexcept;</pre> Effects: 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). Remarks: If U is an incomplete type, the program is ill-formed. This operator shall not participate in overload resolution unless: <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem">T is not an array type and U* is convertible to T*, OR</li> <li class="listitem">T is an array type, and remove_cv::type is the same type as remove_cv<remove_extent<T>::type>::type and U* is convertible to remove_extent<T>::type*. </li> </ul></div> </li> <li class="listitem"> <pre class="literallayout">void <a name="idp157695728-bb"></a>operator()(std::nullptr_t) const noexcept;</pre> Effects: Same as <code class="computeroutput">(this)(static_cast<element_type>(nullptr))</code>. </li> </ol></div> </div> </div> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2008-2014 Ion Gaztanaga 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>) </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="../move_upd/nullptr_type.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../move/reference.html#header.boost.move.default_delete_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../move_iterator.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>