="special">::</span><span class="identifier">type</span> 
          <a name="boost.unit_test.data.monomorphic.operator+_idp58473936"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="identifier">DataSet1</span> <span class="special">&amp;&amp;</span> ds1<span class="special">,</span> <span class="identifier">DataSet2</span> <span class="special">&amp;&amp;</span> ds2<span class="special">)</span><span class="special">;</span>
        <span clas