taset">is_dataset</a><span class="special">&lt;</span> <span class="identifier">DataSet1</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span> <span class="special">&amp;&amp;</span><a class="link" href="../../../../../boost/unit_test/data/monomorphic/is_dataset.html" title="Struct template is_dataset">is_dataset</a><span class="special">&lt;</span> <span class="identifier">DataSet2</span> <span class="special">&gt;</span><span class="special">::</span>