<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qscopedpointer.cpp --> <title>QScopedArrayPointer Class | Qt Core 5.12.2</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QScopedArrayPointer</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtcore-index.html">Qt 5.12.2 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QScopedArrayPointer Class</h1> <!-- $$$QScopedArrayPointer-brief --> <p>The <a href="qscopedarraypointer.html">QScopedArrayPointer</a> class stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction. <a href="#details">More...</a></p> <!-- @@@QScopedArrayPointer --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QScopedArrayPointer></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += core</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 4.6</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qscopedpointer.html">QScopedPointer</a></td></tr></table></div><ul> <li><a href="qscopedarraypointer-members.html">List of all members, including inherited members</a></li> </ul> <p><b>Note:</b> All functions in this class are reentrant.</p> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qscopedarraypointer.html#QScopedArrayPointer">QScopedArrayPointer</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qscopedarraypointer.html#QScopedArrayPointer-1">QScopedArrayPointer</a></b>(D *<i>p</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qscopedarraypointer.html#swap">swap</a></b>(QScopedArrayPointer<T, Cleanup> &<i>other</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> T &</td><td class="memItemRight bottomAlign"><b><a href="qscopedarraypointer.html#operator-5b-5d">operator[]</a></b>(int <i>i</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const T &</td><td class="memItemRight bottomAlign"><b><a href="qscopedarraypointer.html#operator-5b-5d-1">operator[]</a></b>(int <i>i</i>) const</td></tr> </table></div> <ul> <li class="fn">10 public functions inherited from <a href="qscopedpointer.html#public-functions">QScopedPointer</a></li> </ul> <a name="details"></a> <!-- $$$QScopedArrayPointer-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qscopedarraypointer.html">QScopedArrayPointer</a> class stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction.</p> <p>A <a href="qscopedarraypointer.html">QScopedArrayPointer</a> is a <a href="qscopedpointer.html">QScopedPointer</a> that defaults to deleting the object it is pointing to with the delete[] operator. It also features operator[] for convenience, so we can write:</p> <pre class="cpp"> <span class="type">void</span> foo() { <span class="type"><a href="qscopedarraypointer.html#QScopedArrayPointer">QScopedArrayPointer</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">></span> i(<span class="keyword">new</span> <span class="type">int</span><span class="operator">[</span><span class="number">10</span><span class="operator">]</span>); i<span class="operator">[</span><span class="number">2</span><span class="operator">]</span> <span class="operator">=</span> <span class="number">42</span>; <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span> <span class="keyword">return</span>; <span class="comment">// our integer array is now deleted using delete[]</span> } </pre> </div> <!-- @@@QScopedArrayPointer --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QScopedArrayPointer[overload1]$$$QScopedArrayPointer --> <h3 class="fn" id="QScopedArrayPointer"><a name="QScopedArrayPointer"></a>QScopedArrayPointer::<span class="name">QScopedArrayPointer</span>()</h3> <p>Constructs a <a href="qscopedarraypointer.html">QScopedArrayPointer</a> instance.</p> <!-- @@@QScopedArrayPointer --> <!-- $$$QScopedArrayPointer$$$QScopedArrayPointerD* --> <h3 class="fn" id="QScopedArrayPointer-1"><a name="QScopedArrayPointer-1"></a>QScopedArrayPointer::<span class="name">QScopedArrayPointer</span>(<span class="type">D</span> *<i>p</i>)</h3> <p>Constructs a <a href="qscopedarraypointer.html">QScopedArrayPointer</a> and stores the array of objects pointed to by <i>p</i>.</p> <!-- @@@QScopedArrayPointer --> <!-- $$$swap[overload1]$$$swapQScopedArrayPointer<T,Cleanup>& --> <h3 class="fn" id="swap"><a name="swap"></a><span class="type">void</span> QScopedArrayPointer::<span class="name">swap</span>(<span class="type"><a href="qscopedarraypointer.html#QScopedArrayPointer">QScopedArrayPointer</a></span><<span class="type">T</span>, <span class="type">Cleanup</span>> &<i>other</i>)</h3> <p>Swap this pointer with <i>other</i>.</p> <!-- @@@swap --> <!-- $$$operator[][overload1]$$$operator[]int --> <h3 class="fn" id="operator-5b-5d"><a name="operator-5b-5d"></a><span class="type">T</span> &QScopedArrayPointer::<span class="name">operator[]</span>(<span class="type">int</span> <i>i</i>)</h3> <p>Provides access to entry <i>i</i> of the scoped pointer's array of objects.</p> <p>If the contained pointer is <code>null</code>, behavior is undefined.</p> <p><b>See also </b><a href="qscopedpointer.html#isNull">isNull</a>().</p> <!-- @@@operator[] --> <!-- $$$operator[]$$$operator[]int --> <h3 class="fn" id="operator-5b-5d-1"><a name="operator-5b-5d-1"></a>const <span class="type">T</span> &QScopedArrayPointer::<span class="name">operator[]</span>(<span class="type">int</span> <i>i</i>) const</h3> <p>Provides access to entry <i>i</i> of the scoped pointer's array of objects.</p> <p>If the contained pointer is <code>null</code>, behavior is undefined.</p> <p><b>See also </b><a href="qscopedpointer.html#isNull">isNull</a>().</p> <!-- @@@operator[] --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>