n class="sig-name descname"><span class="n"><span class="pre">isEmpty</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N8omexmeta7Triples7isEmptyEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>indicates whether <a class="reference internal" href="#classomexmeta_1_1Triples"><span class="std std-ref">Triples</span></a> object is empty. </p>
<p>
Useful for iterating over <a class="reference internal" href="#classomexmeta_1