-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 *(node_label_and_data)(xbt_node_t, const char*, const char*),
- void *(edge_label_and_data)(xbt_edge_t, const char*, const char*)
- );
-
-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),
- const char *(node_data_print)(void *),
- const char *(edge_data_print)(void *));
-
-/* Not implemented yet ! */
-/* void *xbt_graph_to_array(xbt_graph_t g); */
-xbt_node_t* xbt_graph_shortest_paths(xbt_graph_t g);
-void xbt_graph_topological_sort(xbt_graph_t g);
-xbt_edge_t* xbt_graph_spanning_tree_prim(xbt_graph_t g);