-void xbt_graph_remove_node(xbt_graph_t g, xbt_node_t n, void free_function(void * ptr));
-void xbt_graph_remove_edge(xbt_graph_t g, xbt_edge_t e, void free_function(void * ptr));
+void xbt_graph_remove_node(xbt_graph_t g, xbt_node_t n,
+ void_f_pvoid_t *free_function);
+void xbt_graph_remove_edge(xbt_graph_t g, xbt_edge_t e,
+ void_f_pvoid_t *free_function);