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Michele Caini 6fdc43199c API reference v3.9.0
2021-12-21 13:20:51 +01:00

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<li class="navelem"><a class="el" href="namespaceentt.html">entt</a></li><li class="navelem"><a class="el" href="structentt_1_1null__t.html">null_t</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<div class="title">entt::null_t Struct Reference</div> </div>
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<p>Null object for all identifiers. <br />
<a href="structentt_1_1null__t.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="entity_8hpp_source.html">entity.hpp</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a816903f5ef0036594891edcf253d2570"><td class="memTemplParams" colspan="2">template&lt;typename Entity &gt; </td></tr>
<tr class="memitem:a816903f5ef0036594891edcf253d2570"><td class="memTemplItemLeft" align="right" valign="top">constexpr&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structentt_1_1null__t.html#a816903f5ef0036594891edcf253d2570">operator Entity</a> () const</td></tr>
<tr class="memdesc:a816903f5ef0036594891edcf253d2570"><td class="mdescLeft">&#160;</td><td class="mdescRight">Converts the null object to identifiers of any type. <a href="structentt_1_1null__t.html#a816903f5ef0036594891edcf253d2570">More...</a><br /></td></tr>
<tr class="separator:a816903f5ef0036594891edcf253d2570"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa9a56492571f7949c26fc7ce4c9aa441"><td class="memItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structentt_1_1null__t.html#aa9a56492571f7949c26fc7ce4c9aa441">operator==</a> ([[maybe_unused]] const <a class="el" href="structentt_1_1null__t.html">null_t</a> other) const</td></tr>
<tr class="memdesc:aa9a56492571f7949c26fc7ce4c9aa441"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compares two null objects. <a href="structentt_1_1null__t.html#aa9a56492571f7949c26fc7ce4c9aa441">More...</a><br /></td></tr>
<tr class="separator:aa9a56492571f7949c26fc7ce4c9aa441"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1bd5e7e2a2fdc78944cf32ee03a6d0ab"><td class="memItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structentt_1_1null__t.html#a1bd5e7e2a2fdc78944cf32ee03a6d0ab">operator!=</a> ([[maybe_unused]] const <a class="el" href="structentt_1_1null__t.html">null_t</a> other) const</td></tr>
<tr class="memdesc:a1bd5e7e2a2fdc78944cf32ee03a6d0ab"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compares two null objects. <a href="structentt_1_1null__t.html#a1bd5e7e2a2fdc78944cf32ee03a6d0ab">More...</a><br /></td></tr>
<tr class="separator:a1bd5e7e2a2fdc78944cf32ee03a6d0ab"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a510e2259bb0ed264ecdf64f7e8b51665"><td class="memTemplParams" colspan="2">template&lt;typename Entity &gt; </td></tr>
<tr class="memitem:a510e2259bb0ed264ecdf64f7e8b51665"><td class="memTemplItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structentt_1_1null__t.html#a510e2259bb0ed264ecdf64f7e8b51665">operator==</a> (const Entity <a class="el" href="namespaceentt.html#a0b54e231d069e8a231e14b223388808a">entity</a>) const</td></tr>
<tr class="memdesc:a510e2259bb0ed264ecdf64f7e8b51665"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compares a null object and an identifier of any type. <a href="structentt_1_1null__t.html#a510e2259bb0ed264ecdf64f7e8b51665">More...</a><br /></td></tr>
<tr class="separator:a510e2259bb0ed264ecdf64f7e8b51665"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1e155d4d92605008969c3df64484ed44"><td class="memTemplParams" colspan="2">template&lt;typename Entity &gt; </td></tr>
<tr class="memitem:a1e155d4d92605008969c3df64484ed44"><td class="memTemplItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structentt_1_1null__t.html#a1e155d4d92605008969c3df64484ed44">operator!=</a> (const Entity <a class="el" href="namespaceentt.html#a0b54e231d069e8a231e14b223388808a">entity</a>) const</td></tr>
<tr class="memdesc:a1e155d4d92605008969c3df64484ed44"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compares a null object and an identifier of any type. <a href="structentt_1_1null__t.html#a1e155d4d92605008969c3df64484ed44">More...</a><br /></td></tr>
<tr class="separator:a1e155d4d92605008969c3df64484ed44"><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"><p>Null object for all identifiers. <br />
</p>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00162">162</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="a816903f5ef0036594891edcf253d2570"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a816903f5ef0036594891edcf253d2570">&#9670;&nbsp;</a></span>operator Entity()</h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Entity &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">constexpr entt::null_t::operator Entity </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">constexpr</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Converts the null object to identifiers of any type. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">Entity</td><td>Type of identifier. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The null representation for the given type. </dd></dl>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00169">169</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div>
</div>
<a id="a1bd5e7e2a2fdc78944cf32ee03a6d0ab"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1bd5e7e2a2fdc78944cf32ee03a6d0ab">&#9670;&nbsp;</a></span>operator!=() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">constexpr bool entt::null_t::operator!= </td>
<td>(</td>
<td class="paramtype">[[maybe_unused] ] const <a class="el" href="structentt_1_1null__t.html">null_t</a>&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">constexpr</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Compares two null objects. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>A null object. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>False in all cases. </dd></dl>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00188">188</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div>
</div>
<a id="a1e155d4d92605008969c3df64484ed44"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1e155d4d92605008969c3df64484ed44">&#9670;&nbsp;</a></span>operator!=() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Entity &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">constexpr bool entt::null_t::operator!= </td>
<td>(</td>
<td class="paramtype">const Entity&#160;</td>
<td class="paramname"><em>entity</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">constexpr</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Compares a null object and an identifier of any type. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">Entity</td><td>Type of identifier. </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">entity</td><td>Identifier with which to compare. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True if the two elements differ, false otherwise. </dd></dl>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00211">211</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div>
</div>
<a id="aa9a56492571f7949c26fc7ce4c9aa441"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa9a56492571f7949c26fc7ce4c9aa441">&#9670;&nbsp;</a></span>operator==() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
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<td class="memname">constexpr bool entt::null_t::operator== </td>
<td>(</td>
<td class="paramtype">[[maybe_unused] ] const <a class="el" href="structentt_1_1null__t.html">null_t</a>&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">constexpr</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Compares two null objects. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>A null object. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>True in all cases. </dd></dl>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00179">179</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div>
</div>
<a id="a510e2259bb0ed264ecdf64f7e8b51665"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a510e2259bb0ed264ecdf64f7e8b51665">&#9670;&nbsp;</a></span>operator==() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Entity &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">constexpr bool entt::null_t::operator== </td>
<td>(</td>
<td class="paramtype">const Entity&#160;</td>
<td class="paramname"><em>entity</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">constexpr</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Compares a null object and an identifier of any type. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">Entity</td><td>Type of identifier. </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">entity</td><td>Identifier with which to compare. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>False if the two elements differ, true otherwise. </dd></dl>
<p class="definition">Definition at line <a class="el" href="entity_8hpp_source.html#l00199">199</a> of file <a class="el" href="entity_8hpp_source.html">entity.hpp</a>.</p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following file:<ul>
<li>src/entt/entity/<a class="el" href="entity_8hpp_source.html">entity.hpp</a></li>
</ul>
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