typedef const s4u_File* const_sg_file_t;
typedef s4u_VM* sg_vm_t;
typedef const s4u_VM* const_sg_vm_t;
+/** Pointer to an actor object */
typedef s4u_Actor* sg_actor_t;
+/** Pointer to a constant actor object */
typedef const s4u_Actor* const_sg_actor_t;
typedef struct s_smx_simcall* smx_simcall_t;