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<li class="navelem"><a class="el" href="namespaceentt.html">entt</a></li><li class="navelem"><a class="el" href="classentt_1_1handle.html">handle</a></li> </ul>
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<div class="title">entt::handle&lt; Resource &gt; Class Template Reference</div> </div>
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<p>Shared resource handle.
<a href="classentt_1_1handle.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="handle_8hpp_source.html">handle.hpp</a>&gt;</code></p>
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Public Member Functions</h2></td></tr>
<tr class="memitem:ac084be205973fb5feedd3c5795955f97"><td class="memItemLeft" align="right" valign="top"><a id="ac084be205973fb5feedd3c5795955f97"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#ac084be205973fb5feedd3c5795955f97">handle</a> () ENTT_NOEXCEPT=default</td></tr>
<tr class="memdesc:ac084be205973fb5feedd3c5795955f97"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default constructor. <br /></td></tr>
<tr class="separator:ac084be205973fb5feedd3c5795955f97"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afa206e76d351ac2c502996e08f858612"><td class="memItemLeft" align="right" valign="top">const Resource &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#afa206e76d351ac2c502996e08f858612">get</a> () const ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:afa206e76d351ac2c502996e08f858612"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#afa206e76d351ac2c502996e08f858612">More...</a><br /></td></tr>
<tr class="separator:afa206e76d351ac2c502996e08f858612"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7c67da714dbde0cd2f2a35143ea36f3b"><td class="memItemLeft" align="right" valign="top">Resource &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a7c67da714dbde0cd2f2a35143ea36f3b">get</a> () ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a7c67da714dbde0cd2f2a35143ea36f3b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#a7c67da714dbde0cd2f2a35143ea36f3b">More...</a><br /></td></tr>
<tr class="separator:a7c67da714dbde0cd2f2a35143ea36f3b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5a6fe485f3d1af803a941f5dba9e444f"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a5a6fe485f3d1af803a941f5dba9e444f">operator const Resource &amp;</a> () const ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a5a6fe485f3d1af803a941f5dba9e444f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#a5a6fe485f3d1af803a941f5dba9e444f">More...</a><br /></td></tr>
<tr class="separator:a5a6fe485f3d1af803a941f5dba9e444f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a38ed3e151650b67f26339b380db76c2a"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a38ed3e151650b67f26339b380db76c2a">operator Resource &amp;</a> () ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a38ed3e151650b67f26339b380db76c2a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#a38ed3e151650b67f26339b380db76c2a">More...</a><br /></td></tr>
<tr class="separator:a38ed3e151650b67f26339b380db76c2a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a20a3b1865543ce4ad19262470c72d4e5"><td class="memItemLeft" align="right" valign="top">const Resource &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a20a3b1865543ce4ad19262470c72d4e5">operator*</a> () const ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a20a3b1865543ce4ad19262470c72d4e5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#a20a3b1865543ce4ad19262470c72d4e5">More...</a><br /></td></tr>
<tr class="separator:a20a3b1865543ce4ad19262470c72d4e5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0b1aa9bace6bdef7e5788f48abaad3da"><td class="memItemLeft" align="right" valign="top">Resource &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a0b1aa9bace6bdef7e5788f48abaad3da">operator*</a> () ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a0b1aa9bace6bdef7e5788f48abaad3da"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a reference to the managed resource. <a href="#a0b1aa9bace6bdef7e5788f48abaad3da">More...</a><br /></td></tr>
<tr class="separator:a0b1aa9bace6bdef7e5788f48abaad3da"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a73df220e891ca8418f5f5fd476997e13"><td class="memItemLeft" align="right" valign="top">const Resource *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a73df220e891ca8418f5f5fd476997e13">operator-&gt;</a> () const ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:a73df220e891ca8418f5f5fd476997e13"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a pointer to the managed resource. <a href="#a73df220e891ca8418f5f5fd476997e13">More...</a><br /></td></tr>
<tr class="separator:a73df220e891ca8418f5f5fd476997e13"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad7f9d864894ae2c8835c9b95d95db841"><td class="memItemLeft" align="right" valign="top">Resource *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#ad7f9d864894ae2c8835c9b95d95db841">operator-&gt;</a> () ENTT_NOEXCEPT</td></tr>
<tr class="memdesc:ad7f9d864894ae2c8835c9b95d95db841"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets a pointer to the managed resource. <a href="#ad7f9d864894ae2c8835c9b95d95db841">More...</a><br /></td></tr>
<tr class="separator:ad7f9d864894ae2c8835c9b95d95db841"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2c4264107321541019eeab88f4bac335"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#a2c4264107321541019eeab88f4bac335">operator bool</a> () const</td></tr>
<tr class="memdesc:a2c4264107321541019eeab88f4bac335"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns true if a handle contains a resource, false otherwise. <a href="#a2c4264107321541019eeab88f4bac335">More...</a><br /></td></tr>
<tr class="separator:a2c4264107321541019eeab88f4bac335"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Friends</h2></td></tr>
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struct&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1handle.html#adcd47fa89dbe180ef0db46d3f0c43762">cache&lt; Resource &gt;</a></td></tr>
<tr class="memdesc:adcd47fa89dbe180ef0db46d3f0c43762"><td class="mdescLeft">&#160;</td><td class="mdescRight">Resource handles are friends of their caches. <br /></td></tr>
<tr class="separator:adcd47fa89dbe180ef0db46d3f0c43762"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename Resource&gt;<br />
class entt::handle&lt; Resource &gt;</h3>
<p>Shared resource handle. </p>
<p>A shared resource handle is a small class that wraps a resource and keeps it alive even if it's deleted from the cache. It can be either copied or moved. A handle shares a reference to the same resource with all the other handles constructed for the same identifier.<br />
As a rule of thumb, resources should never be copied nor moved. Handles are the way to go to keep references to them.</p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">Resource</td><td>Type of resource managed by a handle. </td></tr>
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</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="resource_2fwd_8hpp_source.html#l00014">14</a> of file <a class="el" href="resource_2fwd_8hpp_source.html">fwd.hpp</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="afa206e76d351ac2c502996e08f858612"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afa206e76d351ac2c502996e08f858612">&#9670;&nbsp;</a></span>get() <span class="overload">[1/2]</span></h2>
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<td>(</td>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00049">49</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7c67da714dbde0cd2f2a35143ea36f3b">&#9670;&nbsp;</a></span>get() <span class="overload">[2/2]</span></h2>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00055">55</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2c4264107321541019eeab88f4bac335">&#9670;&nbsp;</a></span>operator bool()</h2>
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template&lt;typename Resource &gt; </div>
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<p>Returns true if a handle contains a resource, false otherwise. </p>
<dl class="section return"><dt>Returns</dt><dd>True if the handle contains a resource, false otherwise. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00096">96</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5a6fe485f3d1af803a941f5dba9e444f">&#9670;&nbsp;</a></span>operator const Resource &()</h2>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00060">60</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a38ed3e151650b67f26339b380db76c2a">&#9670;&nbsp;</a></span>operator Resource &()</h2>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00063">63</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a20a3b1865543ce4ad19262470c72d4e5">&#9670;&nbsp;</a></span>operator*() <span class="overload">[1/2]</span></h2>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00066">66</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<p>Gets a reference to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A reference to the managed resource. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00069">69</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<td class="memname">const Resource* <a class="el" href="classentt_1_1handle.html">entt::handle</a>&lt; Resource &gt;::operator-&gt; </td>
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<p>Gets a pointer to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A pointer to the managed resource or <code>nullptr</code> if the handle contains no resource at all. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00082">82</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad7f9d864894ae2c8835c9b95d95db841">&#9670;&nbsp;</a></span>operator->() <span class="overload">[2/2]</span></h2>
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template&lt;typename Resource &gt; </div>
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<td class="memname">Resource* <a class="el" href="classentt_1_1handle.html">entt::handle</a>&lt; Resource &gt;::operator-&gt; </td>
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<p>Gets a pointer to the managed resource. </p>
<dl class="section warning"><dt>Warning</dt><dd>The behavior is undefined if the handle doesn't contain a resource.<br />
An assertion will abort the execution at runtime in debug mode if the handle is empty.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>A pointer to the managed resource or <code>nullptr</code> if the handle contains no resource at all. </dd></dl>
<p class="definition">Definition at line <a class="el" href="handle_8hpp_source.html#l00088">88</a> of file <a class="el" href="handle_8hpp_source.html">handle.hpp</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>src/entt/resource/<a class="el" href="resource_2fwd_8hpp_source.html">fwd.hpp</a></li>
<li>src/entt/resource/<a class="el" href="handle_8hpp_source.html">handle.hpp</a></li>
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