-XBT_PUBLIC(int) MC_random(int min, int max);
-XBT_PUBLIC(void) MC_automaton_new_propositional_symbol(const char* id, void* fct);
+XBT_PUBLIC(void) MC_automaton_new_propositional_symbol(const char* id, int(*fct)(void));
+XBT_PUBLIC(void) MC_automaton_new_propositional_symbol_pointer(const char *id, int* value);
+XBT_PUBLIC(void) MC_automaton_new_propositional_symbol_callback(const char* id,
+ xbt_automaton_propositional_symbol_callback_type callback,
+ void* data, xbt_automaton_propositional_symbol_free_function_type free_function);
+XBT_PUBLIC(void *) MC_snapshot(void);
+XBT_PUBLIC(int) MC_compare_snapshots(void *s1, void *s2);
+XBT_PUBLIC(void) MC_cut(void);
+XBT_PUBLIC(void) MC_ignore(void *addr, size_t size);