+int __xbt_find_in_dynar(xbt_dynar_t dynar, void *p);
+
+xbt_dynar_t xbt_graph_get_nodes(xbt_graph_t g);
+xbt_dynar_t xbt_graph_get_edges(xbt_graph_t g);
+xbt_node_t xbt_graph_edge_get_source(xbt_edge_t e);
+xbt_node_t xbt_graph_edge_get_target(xbt_edge_t e);
+xbt_graph_t xbt_graph_read(const char *filename);
+
+void xbt_graph_export_graphviz(xbt_graph_t g, const char *filename,
+ const char *(node_name)(xbt_node_t),
+ const char *(edge_name)(xbt_edge_t));
+void xbt_graph_export_graphxml(xbt_graph_t g, const char *filename,
+ const char *(node_name)(xbt_node_t),
+ const char *(edge_name)(xbt_edge_t));
+