<map id="Graphical Class Hierarchy" name="Graphical Class Hierarchy"> <area shape="rect" id="node1" href="$a00458.html" title="std::integral_constant\l\< bool, __is_signed_helper\l\< _Tp \>::value \>" alt="" coords="5,5,176,57"/> <area shape="rect" id="node2" href="$a00845.html" title="is_signed " alt="" coords="224,18,363,43"/> </map>