<map id="Graphical Class Hierarchy" name="Graphical Class Hierarchy"> <area shape="rect" id="node1" href="$a03485.html" title="std::integral_constant\l\< bool, __is_abstract(_Tp)\>" alt="" coords="5,5,176,44"/> <area shape="rect" id="node2" href="$a03937.html" title="is_abstract " alt="" coords="224,12,368,37"/> </map>