s = format (s, "\n%U", format_white_space, indent + 2);
s = format (s, "%U -> ", format_graph_node, g, n - g->nodes);
vec_foreach (l, n->next.links)
s = format (s, "%U (%d), ",
format_graph_node, g, l->node_index,
l->distance);
s = format (s, "\n%U", format_white_space, indent + 2);
s = format (s, "%U -> ", format_graph_node, g, n - g->nodes);
vec_foreach (l, n->next.links)
s = format (s, "%U (%d), ",
format_graph_node, g, l->node_index,
l->distance);