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<tr class="memitem:ae4ac68edd780bdec355ef654fd9bd1fd" id="r_ae4ac68edd780bdec355ef654fd9bd1fd"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ae4ac68edd780bdec355ef654fd9bd1fd">empty</a> () const noexcept</td></tr>
<tr class="memdesc:ae4ac68edd780bdec355ef654fd9bd1fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks whether a group is empty.  <br /></td></tr>
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