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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_e3a7bb56c55e5c2286e2fe96e197d4f5.html">entity</a></li> </ul>
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<div class="headertitle"><div class="title">component.hpp</div></div>
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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_ENTITY_COMPONENT_HPP</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define ENTT_ENTITY_COMPONENT_HPP</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include <cstddef></span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include "../config/config.h"</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include "fwd.hpp"</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceentt.html">entt</a> {</div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="keyword">namespace </span>internal {</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> = <span class="keywordtype">void</span>></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="keyword">struct </span>in_place_delete: std::bool_constant<!(std::is_move_constructible_v<Type> && std::is_move_assignable_v<Type>)> {};</div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">template</span><></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword">struct </span>in_place_delete<void>: std::false_type {};</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">template</span><<span class="keyword">typename</span> Type></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="keyword">struct </span>in_place_delete<Type, std::enable_if_t<Type::in_place_delete>></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> : std::true_type {};</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> = <span class="keywordtype">void</span>></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">struct </span>page_size: std::integral_constant<std::size_t, !std::is_empty_v<ENTT_ETO_TYPE(Type)> * ENTT_PACKED_PAGE> {};</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">template</span><></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">struct </span>page_size<void>: std::integral_constant<std::size_t, 0u> {};</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">template</span><<span class="keyword">typename</span> Type></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">struct </span>page_size<Type, std::void_t<decltype(Type::page_size)>></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> : std::integral_constant<std::size_t, Type::page_size> {};</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>} <span class="comment">// namespace internal</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Entity, <span class="keyword">typename</span>></div>
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<div class="foldopen" id="foldopen00043" data-start="{" data-end="};">
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="structentt_1_1component__traits.html"> 43</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structentt_1_1component__traits.html">component_traits</a> {</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">static_assert</span>(std::is_same_v<std::decay_t<Type>, Type>, <span class="stringliteral">"Unsupported type"</span>);</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="structentt_1_1component__traits.html#ad991611996fcdc1dcaae38c6035199f9"> 47</a></span> <span class="keyword">using </span><a class="code hl_typedef" href="structentt_1_1component__traits.html#ad991611996fcdc1dcaae38c6035199f9">element_type</a> = Type;</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structentt_1_1component__traits.html#ae234a374ad21f25c234a88230eb5b928"> 49</a></span> <span class="keyword">using </span><a class="code hl_typedef" href="structentt_1_1component__traits.html#ae234a374ad21f25c234a88230eb5b928">entity_type</a> = Entity;</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="structentt_1_1component__traits.html#a1c3296904a082d8ca44d77344ad002ec"> 52</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_variable" href="structentt_1_1component__traits.html#a1c3296904a082d8ca44d77344ad002ec">in_place_delete</a> = internal::in_place_delete<Type>::value;</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="structentt_1_1component__traits.html#ae37a0cf9d057ff1ae12261be2abde7b3"> 54</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> std::size_t <a class="code hl_variable" href="structentt_1_1component__traits.html#ae37a0cf9d057ff1ae12261be2abde7b3">page_size</a> = internal::page_size<Type>::value;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>};</div>
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</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>} <span class="comment">// namespace entt</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="preprocessor">#endif</span></div>
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<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>
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<div class="ttc" id="astructentt_1_1component__traits_html"><div class="ttname"><a href="structentt_1_1component__traits.html">entt::component_traits</a></div><div class="ttdoc">Common way to access various properties of components.</div><div class="ttdef"><b>Definition</b> <a href="#l00043">component.hpp:43</a></div></div>
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<div class="ttc" id="astructentt_1_1component__traits_html_a1c3296904a082d8ca44d77344ad002ec"><div class="ttname"><a href="structentt_1_1component__traits.html#a1c3296904a082d8ca44d77344ad002ec">entt::component_traits< Type, Entity >::in_place_delete</a></div><div class="ttdeci">static constexpr bool in_place_delete</div><div class="ttdef"><b>Definition</b> <a href="#l00052">component.hpp:52</a></div></div>
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<div class="ttc" id="astructentt_1_1component__traits_html_ad991611996fcdc1dcaae38c6035199f9"><div class="ttname"><a href="structentt_1_1component__traits.html#ad991611996fcdc1dcaae38c6035199f9">entt::component_traits::element_type</a></div><div class="ttdeci">Type element_type</div><div class="ttdoc">Element type.</div><div class="ttdef"><b>Definition</b> <a href="#l00047">component.hpp:47</a></div></div>
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<div class="ttc" id="astructentt_1_1component__traits_html_ae234a374ad21f25c234a88230eb5b928"><div class="ttname"><a href="structentt_1_1component__traits.html#ae234a374ad21f25c234a88230eb5b928">entt::component_traits::entity_type</a></div><div class="ttdeci">Entity entity_type</div><div class="ttdoc">Underlying entity identifier.</div><div class="ttdef"><b>Definition</b> <a href="#l00049">component.hpp:49</a></div></div>
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<div class="ttc" id="astructentt_1_1component__traits_html_ae37a0cf9d057ff1ae12261be2abde7b3"><div class="ttname"><a href="structentt_1_1component__traits.html#ae37a0cf9d057ff1ae12261be2abde7b3">entt::component_traits< Type, Entity >::page_size</a></div><div class="ttdeci">static constexpr std::size_t page_size</div><div class="ttdef"><b>Definition</b> <a href="#l00054">component.hpp:54</a></div></div>
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