Function forall_nodes

app/node_ordering.cpp:57–62

        // Make G unweighted
        bool has_node_weights = false;
        forall_nodes(G, node) {
                if (G.getNodeWeight(node) != 1) {
                        has_node_weights = true;
                }
                G.setNodeWeight(node, 1);
        } endfor
        if (has_node_weights) {
                std::cout << "There were nodes with weight != 1" << std::endl;
        }