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<li class="navelem"><b>sf</b></li><li class="navelem"><a class="el" href="classsf_1_1NonCopyable.html">NonCopyable</a></li> </ul>
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<a href="#pro-methods">Protected Member Functions</a> &#124;
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<div class="title">sf::NonCopyable Class Reference<div class="ingroups"><a class="el" href="group__system.html">System module</a></div></div> </div>
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<p>Utility class that makes any derived class non-copyable.
<a href="classsf_1_1NonCopyable.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="NonCopyable_8hpp_source.html">NonCopyable.hpp</a>&gt;</code></p>
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Inheritance diagram for sf::NonCopyable:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr class="memitem:a2110add170580fdb946f887719da6860"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1NonCopyable.html#a2110add170580fdb946f887719da6860">NonCopyable</a> ()</td></tr>
<tr class="memdesc:a2110add170580fdb946f887719da6860"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default constructor. <a href="#a2110add170580fdb946f887719da6860">More...</a><br /></td></tr>
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<tr class="memitem:a8274ffbf46014f5f7f364befb52c7728"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1NonCopyable.html#a8274ffbf46014f5f7f364befb52c7728">~NonCopyable</a> ()</td></tr>
<tr class="memdesc:a8274ffbf46014f5f7f364befb52c7728"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default destructor. <a href="#a8274ffbf46014f5f7f364befb52c7728">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Utility class that makes any derived class non-copyable. </p>
<p>This class makes its instances non-copyable, by explicitly disabling its copy constructor and its assignment operator.</p>
<p>To create a non-copyable class, simply inherit from <a class="el" href="classsf_1_1NonCopyable.html" title="Utility class that makes any derived class non-copyable. ">sf::NonCopyable</a>.</p>
<p>The type of inheritance (public or private) doesn't matter, the copy constructor and assignment operator are declared private in <a class="el" href="classsf_1_1NonCopyable.html" title="Utility class that makes any derived class non-copyable. ">sf::NonCopyable</a> so they will end up being inaccessible in both cases. Thus you can use a shorter syntax for inheriting from it (see below).</p>
<p>Usage example: </p><div class="fragment"><div class="line"><span class="keyword">class </span>MyNonCopyableClass : <a class="code" href="classsf_1_1NonCopyable.html">sf::NonCopyable</a></div><div class="line">{</div><div class="line"> ...</div><div class="line">};</div></div><!-- fragment --><p>Deciding whether the instances of a class can be copied or not is a very important design choice. You are strongly encouraged to think about it before writing a class, and to use <a class="el" href="classsf_1_1NonCopyable.html" title="Utility class that makes any derived class non-copyable. ">sf::NonCopyable</a> when necessary to prevent many potential future errors when using it. This is also a very important indication to users of your class. </p>
<p class="definition">Definition at line <a class="el" href="NonCopyable_8hpp_source.html#l00041">41</a> of file <a class="el" href="NonCopyable_8hpp_source.html">NonCopyable.hpp</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a2110add170580fdb946f887719da6860"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2110add170580fdb946f887719da6860">&#9670;&nbsp;</a></span>NonCopyable()</h2>
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<td class="memname">sf::NonCopyable::NonCopyable </td>
<td>(</td>
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<p>Default constructor. </p>
<p>Because this class has a copy constructor, the compiler will not automatically generate the default constructor. That's why we must define it explicitly. </p>
<p class="definition">Definition at line <a class="el" href="NonCopyable_8hpp_source.html#l00053">53</a> of file <a class="el" href="NonCopyable_8hpp_source.html">NonCopyable.hpp</a>.</p>
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<a id="a8274ffbf46014f5f7f364befb52c7728"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8274ffbf46014f5f7f364befb52c7728">&#9670;&nbsp;</a></span>~NonCopyable()</h2>
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<td class="memname">sf::NonCopyable::~NonCopyable </td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">protected</span></span> </td>
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<p>Default destructor. </p>
<p>By declaring a protected destructor it's impossible to call delete on a pointer of <a class="el" href="classsf_1_1NonCopyable.html" title="Utility class that makes any derived class non-copyable. ">sf::NonCopyable</a>, thus preventing possible resource leaks. </p>
<p class="definition">Definition at line <a class="el" href="NonCopyable_8hpp_source.html#l00063">63</a> of file <a class="el" href="NonCopyable_8hpp_source.html">NonCopyable.hpp</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="NonCopyable_8hpp_source.html">NonCopyable.hpp</a></li>
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