+/*
+ * Dijkstra's algorithm
+ */
+
+struct agar_state *agar_dijkstra_new(void *ctx, struct agar_graph *gr,
+ const void *nr);
+bool agar_dijkstra_step(struct agar_state *sr, const void **nextr);
+bool agar_dijkstra_path(struct agar_state *sr, const void *destr,
+ aga_icost_t *total_cost,
+ const void **prevr, const void **prevedge);
+void agar_dijkstra_all_paths(struct agar_state *sr);
+