template basic_composite_logger">basic_composite_logger</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="basic_composite_logger.html#idm46093049453136-bb"><span class="identifier">basic_composite_logger</span></a><span class="special">(</span><span class="identifier">logger_base</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="k