t</span> <a class="link" href="../../../../../boost/unit_test/data/monomorphic/is_dataset_joi_idp58461792.html" title="Struct template is_dataset&lt;join&lt; DataSet1, DataSet2 &gt;&gt;">is_dataset</a><span class="special">&lt;</span><span class="identifier">join</span><span class="special">&lt;</span> <span class="identifier">DataSet1</span><span class="special">,</span> <span class="identifier">DataSet2</span> <span class="special">&gt;</span><span class="special">&gt;</span><span class="special">;</span>