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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_66e9674e8206a335795995fa32a03c91.html">entt</a></li><li class="navelem"><a class="el" href="dir_c5715f7ee899854a669b87bbaa642de0.html">meta</a></li> </ul>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef ENTT_META_POLICY_HPP</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define ENTT_META_POLICY_HPP</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceentt.html">entt</a> {</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span></div>
<div class="foldopen" id="foldopen00009" data-start="{" data-end="};">
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"><a class="line" href="structentt_1_1as__ref__t.html"> 9</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1as__ref__t.html">as_ref_t</a> final {</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> value = std::is_reference_v&lt;Type&gt; &amp;&amp; !std::is_const_v&lt;std::remove_reference_t&lt;Type&gt;&gt;;</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span>};</div>
</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span></div>
<div class="foldopen" id="foldopen00017" data-start="{" data-end="};">
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"><a class="line" href="structentt_1_1as__cref__t.html"> 17</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1as__cref__t.html">as_cref_t</a> final {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> value = std::is_reference_v&lt;Type&gt;;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span>};</div>
</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span></div>
<div class="foldopen" id="foldopen00025" data-start="{" data-end="};">
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="structentt_1_1as__is__t.html"> 25</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1as__is__t.html">as_is_t</a> final {</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">template</span>&lt;<span class="keyword">typename</span>&gt;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> value = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span>};</div>
</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span></div>
<div class="foldopen" id="foldopen00033" data-start="{" data-end="};">
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="structentt_1_1as__void__t.html"> 33</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1as__void__t.html">as_void_t</a> final {</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">template</span>&lt;<span class="keyword">typename</span>&gt;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> value = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>};</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="foldopen" id="foldopen00046" data-start="{" data-end="};">
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="structentt_1_1is__meta__policy.html"> 46</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1is__meta__policy.html">is_meta_policy</a></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> : std::bool_constant&lt;std::is_same_v&lt;Type, as_ref_t&gt; || std::is_same_v&lt;Type, as_cref_t&gt; || std::is_same_v&lt;Type, as_is_t&gt; || std::is_same_v&lt;Type, as_void_t&gt;&gt; {};</div>
</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="namespaceentt.html#a91aeaedca642d9e7220c77c7e1d2855b"> 54</a></span><span class="keyword">inline</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_variable" href="namespaceentt.html#a91aeaedca642d9e7220c77c7e1d2855b">is_meta_policy_v</a> = <a class="code hl_struct" href="structentt_1_1is__meta__policy.html">is_meta_policy&lt;Type&gt;::value</a>;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>} <span class="comment">// namespace entt</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="anamespaceentt_html"><div class="ttname"><a href="namespaceentt.html">entt</a></div><div class="ttdoc">EnTT default namespace.</div><div class="ttdef"><b>Definition</b> <a href="dense__map_8hpp_source.html#l00022">dense_map.hpp:22</a></div></div>
<div class="ttc" id="anamespaceentt_html_a91aeaedca642d9e7220c77c7e1d2855b"><div class="ttname"><a href="namespaceentt.html#a91aeaedca642d9e7220c77c7e1d2855b">entt::is_meta_policy_v</a></div><div class="ttdeci">constexpr bool is_meta_policy_v</div><div class="ttdoc">Helper variable template.</div><div class="ttdef"><b>Definition</b> <a href="#l00054">policy.hpp:54</a></div></div>
<div class="ttc" id="astructentt_1_1as__cref__t_html"><div class="ttname"><a href="structentt_1_1as__cref__t.html">entt::as_cref_t</a></div><div class="ttdoc">Empty class type used to request the as cref policy.</div><div class="ttdef"><b>Definition</b> <a href="#l00017">policy.hpp:17</a></div></div>
<div class="ttc" id="astructentt_1_1as__is__t_html"><div class="ttname"><a href="structentt_1_1as__is__t.html">entt::as_is_t</a></div><div class="ttdoc">Empty class type used to request the as-is policy.</div><div class="ttdef"><b>Definition</b> <a href="#l00025">policy.hpp:25</a></div></div>
<div class="ttc" id="astructentt_1_1as__ref__t_html"><div class="ttname"><a href="structentt_1_1as__ref__t.html">entt::as_ref_t</a></div><div class="ttdoc">Empty class type used to request the as ref policy.</div><div class="ttdef"><b>Definition</b> <a href="#l00009">policy.hpp:9</a></div></div>
<div class="ttc" id="astructentt_1_1as__void__t_html"><div class="ttname"><a href="structentt_1_1as__void__t.html">entt::as_void_t</a></div><div class="ttdoc">Empty class type used to request the as void policy.</div><div class="ttdef"><b>Definition</b> <a href="#l00033">policy.hpp:33</a></div></div>
<div class="ttc" id="astructentt_1_1is__meta__policy_html"><div class="ttname"><a href="structentt_1_1is__meta__policy.html">entt::is_meta_policy</a></div><div class="ttdoc">Provides the member constant value to true if a type also is a meta policy, false otherwise.</div><div class="ttdef"><b>Definition</b> <a href="#l00046">policy.hpp:47</a></div></div>
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