<map id="Graphical Class Hierarchy" name="Graphical Class Hierarchy"> <area shape="rect" id="node1" href="$a06353.html" title="std::binary_function\l\< _Predicate::first_argument\l_type, _Predicate::second\l_argument_type, bool \>" alt="" coords="5,5,180,71"/> <area shape="rect" id="node2" href="$a06513.html" title="One of the negation functors. " alt="" coords="228,19,351,57"/> </map>