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<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QSharedData</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QSharedData Class</h1>
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<p>The <a href="qshareddata.html">QSharedData</a> class is a base class for shared data objects. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QSharedData></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += core</td></tr></table></div><ul>
<li><a href="qshareddata-members.html">List of all members, including inherited members</a></li>
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<p><b>Note:</b> All functions in this class are reentrant.</p>
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<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qshareddata.html#QSharedData">QSharedData</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qshareddata.html#QSharedData-1">QSharedData</a></b>(const QSharedData &<i>other</i>)</td></tr>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qshareddata.html">QSharedData</a> class is a base class for shared data objects.</p>
<p><a href="qshareddata.html">QSharedData</a> is designed to be used with <a href="qshareddatapointer.html">QSharedDataPointer</a> or <a href="qexplicitlyshareddatapointer.html">QExplicitlySharedDataPointer</a> to implement custom <a href="implicit-sharing.html">implicitly shared</a> or explicitly shared classes. <a href="qshareddata.html">QSharedData</a> provides thread-safe reference counting.</p>
<p>See <a href="qshareddatapointer.html">QSharedDataPointer</a> and <a href="qexplicitlyshareddatapointer.html">QExplicitlySharedDataPointer</a> for details.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QSharedData"><a name="QSharedData"></a>QSharedData::<span class="name">QSharedData</span>()</h3>
<p>Constructs a <a href="qshareddata.html">QSharedData</a> object with a reference count of 0.</p>
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<h3 class="fn" id="QSharedData-1"><a name="QSharedData-1"></a>QSharedData::<span class="name">QSharedData</span>(const <span class="type"><a href="qshareddata.html#QSharedData">QSharedData</a></span> &<i>other</i>)</h3>
<p>Constructs a <a href="qshareddata.html">QSharedData</a> object with reference count 0. <i>other</i> is ignored.</p>
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