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<p>Forward declarations.
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Variables</h2></td></tr>
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template&lt;bool B&gt; </td></tr>
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template&lt;typename , template&lt; typename... &gt; class&gt; </td></tr>
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<tr class="memdesc:gad44e618cd853bf9c253add6b93234302"><td class="mdescLeft">&#160;</td><td class="mdescRight">is_v Test whether a type <code>T</code> is an instantiation of class template <code>C</code>. <br /></td></tr>
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template&lt;typename... Ts, template&lt; typename... &gt; class C&gt; </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Forward declarations. </p>
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