_mappingconstruct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">explicit</span> <a class="link" href="basic_custom_mapping.html#idm46093045928272-bb"><span class="identifier">basic_custom_mapping</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">mapped_type</span> <span class="keyword">const</span> <span class="special">