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<div id="projectbrief">micro Template library</div>
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<div class="title">useif.h</div> </div>
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<a href="useif_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef __utl_meta_useif_h__</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define __utl_meta_useif_h__</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="impl_8h.html">utl/core/impl.h</a>></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <<a class="code" href="operations_8h.html">utl/meta/operations.h</a>></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <<a class="code" href="sfinae_8h.html">utl/meta/sfinae.h</a>></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespaceutl.html">utl</a> {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>meta {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> _T1, <span class="keyword">typename</span> _T2, <span class="keyword">typename</span> _Ret =_T1></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">using</span> <a class="code" href="namespaceutl_1_1meta.html#a7b4ba22b3afb3e7a98e1012a350cb573">use_if_same_t</a> = <a class="code" href="namespaceutl_1_1meta.html#a372fe391d9567f66a81091f581e1fa01">enable_if_t</a><</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  same_<_T1, _T2>::value, _Ret</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="namespaceutl_1_1meta.html#a7b4ba22b3afb3e7a98e1012a350cb573"> 40</a></span>  >;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> _T1, <span class="keyword">typename</span> _T2, <span class="keyword">typename</span> _Ret =_T1></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">using</span> <a class="code" href="namespaceutl_1_1meta.html#af590469269a8c378d937d8d75ee96e8c">use_if_not_same_t</a> = <a class="code" href="namespaceutl_1_1meta.html#a372fe391d9567f66a81091f581e1fa01">enable_if_t</a><</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  !<a class="code" href="structutl_1_1meta_1_1same__.html">same_<_T1, _T2>::value</a>, _Ret</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="namespaceutl_1_1meta.html#af590469269a8c378d937d8d75ee96e8c"> 45</a></span>  >;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T1, <span class="keyword">typename</span>... Ts></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">using</span> <a class="code" href="namespaceutl_1_1meta.html#ad0394846551cd881782e46d2d05190de">use_if_any_t</a> = <a class="code" href="namespaceutl_1_1meta.html#a372fe391d9567f66a81091f581e1fa01">enable_if_t</a><</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="group__integral.html#gac43f400cc93d54f5f79892e618069d9b">or_</a><T1, Ts...>::value, T1</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="namespaceutl_1_1meta.html#ad0394846551cd881782e46d2d05190de"> 50</a></span>  >;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T1, <span class="keyword">typename</span>... Ts></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">using</span> <a class="code" href="namespaceutl_1_1meta.html#a52ff6257bf079904f9cb51a65f5a7397">use_if_all_t</a> = <a class="code" href="namespaceutl_1_1meta.html#a372fe391d9567f66a81091f581e1fa01">enable_if_t</a><</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="group__integral.html#ga8e82f4758321e0e0b3705607f7d8e068">and_</a><T1, Ts...>::value, T1</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="namespaceutl_1_1meta.html#a52ff6257bf079904f9cb51a65f5a7397"> 56</a></span>  >;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> }}</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#endif </span><span class="comment">/* __utl_meta_useif_h__ */</span><span class="preprocessor"></span></div><div class="ttc" id="namespaceutl_1_1meta_html_a7b4ba22b3afb3e7a98e1012a350cb573"><div class="ttname"><a href="namespaceutl_1_1meta.html#a7b4ba22b3afb3e7a98e1012a350cb573">utl::meta::use_if_same_t</a></div><div class="ttdeci">enable_if_t< same_< _T1, _T2 >::value, _Ret > use_if_same_t</div><div class="ttdoc">If same type resolves to _Ret, else SFINAE. </div><div class="ttdef"><b>Definition:</b> <a href="useif_8h_source.html#l00040">useif.h:40</a></div></div>
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<div class="ttc" id="namespaceutl_1_1meta_html_af590469269a8c378d937d8d75ee96e8c"><div class="ttname"><a href="namespaceutl_1_1meta.html#af590469269a8c378d937d8d75ee96e8c">utl::meta::use_if_not_same_t</a></div><div class="ttdeci">enable_if_t< !same_< _T1, _T2 >::value, _Ret > use_if_not_same_t</div><div class="ttdoc">If not same type resolves to _Ret, else SFINAE. </div><div class="ttdef"><b>Definition:</b> <a href="useif_8h_source.html#l00045">useif.h:45</a></div></div>
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<div class="ttc" id="operations_8h_html"><div class="ttname"><a href="operations_8h.html">operations.h</a></div><div class="ttdoc">Integral constant operations and logical operations. </div></div>
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<div class="ttc" id="namespaceutl_1_1meta_html_a52ff6257bf079904f9cb51a65f5a7397"><div class="ttname"><a href="namespaceutl_1_1meta.html#a52ff6257bf079904f9cb51a65f5a7397">utl::meta::use_if_all_t</a></div><div class="ttdeci">enable_if_t< and_< T1, Ts... >::value, T1 > use_if_all_t</div><div class="ttdoc">If both type (_T1 and _T2) type resolves to _Ret, else to SFINAE. </div><div class="ttdef"><b>Definition:</b> <a href="useif_8h_source.html#l00056">useif.h:56</a></div></div>
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<div class="ttc" id="namespaceutl_html"><div class="ttname"><a href="namespaceutl.html">utl</a></div><div class="ttdoc">STL&#39;s core language concepts. </div><div class="ttdef"><b>Definition:</b> <a href="__1wire_8h_source.html#l00030">_1wire.h:30</a></div></div>
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<div class="ttc" id="structutl_1_1meta_1_1same___html"><div class="ttname"><a href="structutl_1_1meta_1_1same__.html">utl::meta::same_</a></div><div class="ttdef"><b>Definition:</b> <a href="operations_8h_source.html#l00102">operations.h:102</a></div></div>
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<div class="ttc" id="sfinae_8h_html"><div class="ttname"><a href="sfinae_8h.html">sfinae.h</a></div><div class="ttdoc">Template meta-programming SFINAE helpers. </div></div>
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<div class="ttc" id="namespaceutl_1_1meta_html_a372fe391d9567f66a81091f581e1fa01"><div class="ttname"><a href="namespaceutl_1_1meta.html#a372fe391d9567f66a81091f581e1fa01">utl::meta::enable_if_t</a></div><div class="ttdeci">eval< enable_if< If, _Tp > > enable_if_t</div><div class="ttdoc">alias template for enable_if </div><div class="ttdef"><b>Definition:</b> <a href="sfinae_8h_source.html#l00063">sfinae.h:63</a></div></div>
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<div class="ttc" id="group__integral_html_gac43f400cc93d54f5f79892e618069d9b"><div class="ttname"><a href="group__integral.html#gac43f400cc93d54f5f79892e618069d9b">utl::meta::or_</a></div><div class="ttdeci">eval< detail::_or_< _Ts... > > or_</div><div class="ttdef"><b>Definition:</b> <a href="operations_8h_source.html#l00070">operations.h:70</a></div></div>
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<div class="ttc" id="group__integral_html_ga8e82f4758321e0e0b3705607f7d8e068"><div class="ttname"><a href="group__integral.html#ga8e82f4758321e0e0b3705607f7d8e068">utl::meta::and_</a></div><div class="ttdeci">eval< detail::_and_< _Ts... > > and_</div><div class="ttdef"><b>Definition:</b> <a href="operations_8h_source.html#l00096">operations.h:96</a></div></div>
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<div class="ttc" id="namespaceutl_1_1meta_html_ad0394846551cd881782e46d2d05190de"><div class="ttname"><a href="namespaceutl_1_1meta.html#ad0394846551cd881782e46d2d05190de">utl::meta::use_if_any_t</a></div><div class="ttdeci">enable_if_t< or_< T1, Ts... >::value, T1 > use_if_any_t</div><div class="ttdoc">If any type (_T1 or _T2) type resolves to _Ret, else to SFINAE. </div><div class="ttdef"><b>Definition:</b> <a href="useif_8h_source.html#l00050">useif.h:50</a></div></div>
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<div class="ttc" id="impl_8h_html"><div class="ttname"><a href="impl_8h.html">impl.h</a></div><div class="ttdoc">Implementation detail main forward header. </div></div>
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