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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef ENTT_SIGNAL_SIGH_HPP</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define ENTT_SIGNAL_SIGH_HPP</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceentt.html">entt</a> {</div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="keyword">namespace </span>{</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">struct </span>Invoker;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args, <span class="keyword">typename</span> Collector&gt;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">struct </span>Invoker&lt;Ret(Args...), Collector&gt; {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keyword">using</span> proto_type = Ret(*)(<span class="keywordtype">void</span> *, Args...);</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keyword">using</span> call_type = std::pair&lt;void *, proto_type&gt;;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keyword">virtual</span> ~Invoker() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SFINAE = Ret&gt;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_void&lt;SFINAE&gt;::value, <span class="keywordtype">bool</span>&gt;::type</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; invoke(Collector &amp;, proto_type proto, <span class="keywordtype">void</span> *instance, Args... args) {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; proto(instance, args...);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; }</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> SFINAE = Ret&gt;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;not std::is_void&lt;SFINAE&gt;::value, <span class="keywordtype">bool</span>&gt;::type</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; invoke(Collector &amp;collector, proto_type proto, <span class="keywordtype">void</span> *instance, Args... args) {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordflow">return</span> collector(proto(instance, args...));</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; }</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;};</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret&gt;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="keyword">struct </span>NullCollector final {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keyword">using</span> result_type = Ret;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordtype">bool</span> operator()(result_type) <span class="keyword">const</span> noexcept { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;};</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keyword">template</span>&lt;&gt;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="keyword">struct </span>NullCollector&lt;void&gt; final {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">using</span> result_type = void;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordtype">bool</span> operator()() const noexcept { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;};</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span>&gt;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="keyword">struct </span>DefaultCollector;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args&gt;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="keyword">struct </span>DefaultCollector&lt;Ret(Args...)&gt; final {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keyword">using</span> collector_type = NullCollector&lt;Ret&gt;;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;};</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Function&gt;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="keyword">using</span> DefaultCollectorType = <span class="keyword">typename</span> DefaultCollector&lt;Function&gt;::collector_type;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;}</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Function, <span class="keyword">typename</span> = DefaultCollectorType&lt;Function&gt;&gt;</div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classentt_1_1SigH.html"> 80</a></span>&#160;<span class="keyword">class </span><a class="code" href="classentt_1_1SigH.html">SigH</a>;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args, <span class="keyword">typename</span> Collector&gt;</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html"> 105</a></span>&#160;<span class="keyword">class </span><a class="code" href="classentt_1_1SigH.html">SigH</a>&lt;Ret(Args...), Collector&gt; final: <span class="keyword">private</span> Invoker&lt;Ret(Args...), Collector&gt; {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keyword">using</span> <span class="keyword">typename</span> Invoker&lt;Ret(Args...), Collector&gt;::call_type;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keyword">template</span>&lt;Ret(*Function)(Args...)&gt;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keyword">static</span> Ret proto(<span class="keywordtype">void</span> *, Args... args) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">return</span> (Function)(args...);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Class, Ret(Class::*Member)(Args... args)&gt;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keyword">static</span> Ret proto(<span class="keywordtype">void</span> *instance, Args... args) {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">return</span> (static_cast&lt;Class *&gt;(instance)-&gt;*Member)(args...);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a7635c4c773fee73faf6eddda2d4abb87"> 120</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a7635c4c773fee73faf6eddda2d4abb87">size_type</a> = <span class="keyword">typename</span> std::vector&lt;call_type&gt;::size_type;</div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ad0e4e34e41daec83437b1c607855079a"> 122</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ad0e4e34e41daec83437b1c607855079a">collector_type</a> = Collector;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keyword">explicit</span> <a class="code" href="classentt_1_1SigH.html">SigH</a>() noexcept = default;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; ~<a class="code" href="classentt_1_1SigH.html">SigH</a>() noexcept = default;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aaaa3e726e71219b8141aaa2a0e31f547"> 134</a></span>&#160; <a class="code" href="classentt_1_1SigH.html">SigH</a>(const <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;other)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; : calls{other.calls}</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; {}</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#afe00dfad740a8b64a082799eb8b64e0f"> 142</a></span>&#160; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#afe00dfad740a8b64a082799eb8b64e0f">SigH</a>(<a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;&amp;other): <a class="code" href="classentt_1_1SigH.html">SigH</a>{} {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; swap(*<span class="keyword">this</span>, other);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a8778e313cb524697a2161f9db0c331dd"> 151</a></span>&#160; <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a8778e313cb524697a2161f9db0c331dd">operator=</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;other) {</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; calls = other.calls;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a3ff08c3c8ce19b988c1d1003deececf8"> 161</a></span>&#160; <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a3ff08c3c8ce19b988c1d1003deececf8">operator=</a>(<a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;&amp;other) {</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; swap(*<span class="keyword">this</span>, other);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ae8ca8c4bddbebc4e3c2c75138b37cea8"> 170</a></span>&#160; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a7635c4c773fee73faf6eddda2d4abb87">size_type</a> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ae8ca8c4bddbebc4e3c2c75138b37cea8">size</a>() const noexcept {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">return</span> calls.size();</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab04be7230a097d810ff1476d87c7ec30"> 178</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab04be7230a097d810ff1476d87c7ec30">empty</a>() const noexcept {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordflow">return</span> calls.empty();</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#addb26bed0ae1287d7946d2a194118826"> 185</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#addb26bed0ae1287d7946d2a194118826">clear</a>() noexcept {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; calls.clear();</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; <span class="keyword">template</span>&lt;Ret(*Function)(Args...)&gt;</div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aa08b7a84d99e44a10b4843e4d866c9b1"> 199</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aa08b7a84d99e44a10b4843e4d866c9b1">connect</a>() {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; disconnect&lt;Function&gt;();</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; calls.emplace_back(<span class="keyword">nullptr</span>, &amp;proto&lt;Function&gt;);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, Ret(Class::*Member)(Args...)&gt;</div><div class="line"><a name="l00220"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#abf25e1699523e05fe36c1af931778d8f"> 220</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#abf25e1699523e05fe36c1af931778d8f">connect</a>(Class *instance) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; disconnect&lt;Class, Member&gt;(instance);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; calls.emplace_back(instance, &amp;proto&lt;Class, Member&gt;);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; }</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keyword">template</span>&lt;Ret(*Function)(Args...)&gt;</div><div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aebdab9f1fb97228769e0383215be6097"> 230</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aebdab9f1fb97228769e0383215be6097">disconnect</a>() {</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; call_type target{<span class="keyword">nullptr</span>, &amp;proto&lt;Function&gt;};</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; calls.erase(std::remove(calls.begin(), calls.end(), std::move(target)), calls.end());</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; }</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Class, Ret(Class::*Member)(Args...)&gt;</div><div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a90b6048011b65144eaa35bf4d9b98063"> 242</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a90b6048011b65144eaa35bf4d9b98063">disconnect</a>(Class *instance) {</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; call_type target{instance, &amp;proto&lt;Class, Member&gt;};</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; calls.erase(std::remove(calls.begin(), calls.end(), std::move(target)), calls.end());</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; }</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Class&gt;</div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a336bc3fda2ca59f486d8eb2addf543e1"> 253</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a336bc3fda2ca59f486d8eb2addf543e1">disconnect</a>(Class *instance) {</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keyword">auto</span> func = [instance](<span class="keyword">const</span> call_type &amp;call) { <span class="keywordflow">return</span> call.first == instance; };</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; calls.erase(std::remove_if(calls.begin(), calls.end(), std::move(func)), calls.end());</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160;</div><div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a09e4795c05a1ebac1c25a60e79d67507"> 265</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a09e4795c05a1ebac1c25a60e79d67507">publish</a>(Args... args) {</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp;&amp;call: calls) {</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; call.second(call.first, args...);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; }</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; }</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160;</div><div class="line"><a name="l00276"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab6258af321b48bc2e70e09c68155b9bc"> 276</a></span>&#160; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ad0e4e34e41daec83437b1c607855079a">collector_type</a> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab6258af321b48bc2e70e09c68155b9bc">collect</a>(Args... args) {</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ad0e4e34e41daec83437b1c607855079a">collector_type</a> collector;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp;&amp;call: calls) {</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keywordflow">if</span>(!this-&gt;invoke(collector, call.second, call.first, args...)) {</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; }</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; }</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keywordflow">return</span> collector;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; }</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div><div class="line"><a name="l00293"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a77dd7bf9e63e5457c080416f31bb232b"> 293</a></span>&#160; <span class="keyword">friend</span> <span class="keywordtype">void</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a77dd7bf9e63e5457c080416f31bb232b">swap</a>(<a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;lhs, <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;rhs) {</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keyword">using</span> std::swap;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; swap(lhs.calls, rhs.calls);</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; }</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;</div><div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a2f86c641dcc58cd23f3763ef4a708b67"> 307</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a2f86c641dcc58cd23f3763ef4a708b67">operator==</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1SigH.html">SigH</a> &amp;other) <span class="keyword">const</span> noexcept {</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; <span class="keywordflow">return</span> (calls.size() == other.calls.size()) &amp;&amp; std::equal(calls.cbegin(), calls.cend(), other.calls.cbegin());</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; }</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; std::vector&lt;call_type&gt; calls;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160;};</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args&gt;</div><div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="namespaceentt.html#a2da4a1967225dc9ab0bc7b177cc78f9f"> 329</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="namespaceentt.html#a2da4a1967225dc9ab0bc7b177cc78f9f">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1SigH.html">SigH</a>&lt;Ret(Args...)&gt; &amp;lhs, <span class="keyword">const</span> <a class="code" href="classentt_1_1SigH.html">SigH</a>&lt;Ret(Args...)&gt; &amp;rhs) noexcept {</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordflow">return</span> !(lhs == rhs);</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160;}</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div><div class="line"><a name="l00342"></a><span class="lineno"><a class="line" href="namespaceentt.html#aeba406e321af94eebdf1da0540a3ee03"> 342</a></span>&#160;<span class="keyword">using</span> <a class="code" href="classentt_1_1SigH.html">EventH</a> = <a class="code" href="classentt_1_1SigH.html">SigH&lt;void(const Event &amp;)&gt;</a>;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160;}</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160;<span class="preprocessor">#endif // ENTT_SIGNAL_SIGH_HPP</span></div><div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_ad0e4e34e41daec83437b1c607855079a"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ad0e4e34e41daec83437b1c607855079a">entt::SigH&lt; Ret(Args...), Collector &gt;::collector_type</a></div><div class="ttdeci">Collector collector_type</div><div class="ttdoc">Collector type. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00122">sigh.hpp:122</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a8778e313cb524697a2161f9db0c331dd"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a8778e313cb524697a2161f9db0c331dd">entt::SigH&lt; Ret(Args...), Collector &gt;::operator=</a></div><div class="ttdeci">SigH &amp; operator=(const SigH &amp;other)</div><div class="ttdoc">Assignment operator, listeners are also connected to this signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00151">sigh.hpp:151</a></div></div>
<div class="ttc" id="namespaceentt_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="family_8hpp_source.html#l00010">family.hpp:10</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a2f86c641dcc58cd23f3763ef4a708b67"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a2f86c641dcc58cd23f3763ef4a708b67">entt::SigH&lt; Ret(Args...), Collector &gt;::operator==</a></div><div class="ttdeci">bool operator==(const SigH &amp;other) const noexcept</div><div class="ttdoc">Checks if the contents of the two signals are identical. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00307">sigh.hpp:307</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_afe00dfad740a8b64a082799eb8b64e0f"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#afe00dfad740a8b64a082799eb8b64e0f">entt::SigH&lt; Ret(Args...), Collector &gt;::SigH</a></div><div class="ttdeci">SigH(SigH &amp;&amp;other)</div><div class="ttdoc">Default move constructor. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00142">sigh.hpp:142</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_ae8ca8c4bddbebc4e3c2c75138b37cea8"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ae8ca8c4bddbebc4e3c2c75138b37cea8">entt::SigH&lt; Ret(Args...), Collector &gt;::size</a></div><div class="ttdeci">size_type size() const noexcept</div><div class="ttdoc">The number of listeners connected to the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00170">sigh.hpp:170</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a77dd7bf9e63e5457c080416f31bb232b"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a77dd7bf9e63e5457c080416f31bb232b">entt::SigH&lt; Ret(Args...), Collector &gt;::swap</a></div><div class="ttdeci">friend void swap(SigH &amp;lhs, SigH &amp;rhs)</div><div class="ttdoc">Swaps listeners between the two signals. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00293">sigh.hpp:293</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a3ff08c3c8ce19b988c1d1003deececf8"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a3ff08c3c8ce19b988c1d1003deececf8">entt::SigH&lt; Ret(Args...), Collector &gt;::operator=</a></div><div class="ttdeci">SigH &amp; operator=(SigH &amp;&amp;other)</div><div class="ttdoc">Default move operator. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00161">sigh.hpp:161</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_ab6258af321b48bc2e70e09c68155b9bc"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab6258af321b48bc2e70e09c68155b9bc">entt::SigH&lt; Ret(Args...), Collector &gt;::collect</a></div><div class="ttdeci">collector_type collect(Args... args)</div><div class="ttdoc">Collects return values from the listeners. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00276">sigh.hpp:276</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a7635c4c773fee73faf6eddda2d4abb87"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a7635c4c773fee73faf6eddda2d4abb87">entt::SigH&lt; Ret(Args...), Collector &gt;::size_type</a></div><div class="ttdeci">typename std::vector&lt; call_type &gt;::size_type size_type</div><div class="ttdoc">Unsigned integer type. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00120">sigh.hpp:120</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a336bc3fda2ca59f486d8eb2addf543e1"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a336bc3fda2ca59f486d8eb2addf543e1">entt::SigH&lt; Ret(Args...), Collector &gt;::disconnect</a></div><div class="ttdeci">void disconnect(Class *instance)</div><div class="ttdoc">Removes all existing connections for the given instance. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00253">sigh.hpp:253</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_addb26bed0ae1287d7946d2a194118826"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#addb26bed0ae1287d7946d2a194118826">entt::SigH&lt; Ret(Args...), Collector &gt;::clear</a></div><div class="ttdeci">void clear() noexcept</div><div class="ttdoc">Disconnects all the listeners from the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00185">sigh.hpp:185</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_aebdab9f1fb97228769e0383215be6097"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aebdab9f1fb97228769e0383215be6097">entt::SigH&lt; Ret(Args...), Collector &gt;::disconnect</a></div><div class="ttdeci">void disconnect()</div><div class="ttdoc">Disconnects a free function from the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00230">sigh.hpp:230</a></div></div>
<div class="ttc" id="namespaceentt_html_a2da4a1967225dc9ab0bc7b177cc78f9f"><div class="ttname"><a href="namespaceentt.html#a2da4a1967225dc9ab0bc7b177cc78f9f">entt::operator!=</a></div><div class="ttdeci">bool operator!=(const SigH&lt; Ret(Args...)&gt; &amp;lhs, const SigH&lt; Ret(Args...)&gt; &amp;rhs) noexcept</div><div class="ttdoc">Checks if the contents of the two signals are different. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00329">sigh.hpp:329</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_abf25e1699523e05fe36c1af931778d8f"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#abf25e1699523e05fe36c1af931778d8f">entt::SigH&lt; Ret(Args...), Collector &gt;::connect</a></div><div class="ttdeci">void connect(Class *instance)</div><div class="ttdoc">Connects the member function for the given instance to the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00220">sigh.hpp:220</a></div></div>
<div class="ttc" id="classentt_1_1SigH_html"><div class="ttname"><a href="classentt_1_1SigH.html">entt::SigH</a></div><div class="ttdoc">Signal handler. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00080">sigh.hpp:80</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a90b6048011b65144eaa35bf4d9b98063"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a90b6048011b65144eaa35bf4d9b98063">entt::SigH&lt; Ret(Args...), Collector &gt;::disconnect</a></div><div class="ttdeci">void disconnect(Class *instance)</div><div class="ttdoc">Disconnects the given member function from the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00242">sigh.hpp:242</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_a09e4795c05a1ebac1c25a60e79d67507"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#a09e4795c05a1ebac1c25a60e79d67507">entt::SigH&lt; Ret(Args...), Collector &gt;::publish</a></div><div class="ttdeci">void publish(Args... args)</div><div class="ttdoc">Triggers the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00265">sigh.hpp:265</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_aa08b7a84d99e44a10b4843e4d866c9b1"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#aa08b7a84d99e44a10b4843e4d866c9b1">entt::SigH&lt; Ret(Args...), Collector &gt;::connect</a></div><div class="ttdeci">void connect()</div><div class="ttdoc">Connects a free function to the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00199">sigh.hpp:199</a></div></div>
<div class="ttc" id="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4_html_ab04be7230a097d810ff1476d87c7ec30"><div class="ttname"><a href="classentt_1_1SigH_3_01Ret_07Args_8_8_8_08_00_01Collector_01_4.html#ab04be7230a097d810ff1476d87c7ec30">entt::SigH&lt; Ret(Args...), Collector &gt;::empty</a></div><div class="ttdeci">bool empty() const noexcept</div><div class="ttdoc">Returns true is at least a listener is connected to the signal. </div><div class="ttdef"><b>Definition:</b> <a href="sigh_8hpp_source.html#l00178">sigh.hpp:178</a></div></div>
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