* @return whether all orders have a filled timetable.

 */

bool OrderList::IsCompleteTimetable() const

{

	for (Order *o = this->first; o != nullptr; o = o->next) {

		/* Implicit orders are, by definition, not timetabled. */

		if (o->IsType(OT_IMPLICIT)) continue;

		if (!o->IsCompletelyTimetabled()) return false;

	}

	return true;

}

/**

 * Checks for internal consistency of order list. Triggers assertion if something is wrong.

 */

void OrderList::DebugCheckSanity() const

{

	VehicleOrderID check_num_orders = 0;

	VehicleOrderID check_num_manual_orders = 0;

	uint check_num_vehicles = 0;

	Ticks check_timetable_duration = 0;

	Ticks check_total_duration = 0;

	Debug(misc, 6, "Checking OrderList {} for sanity...", this->index);

	assert(this->timetable_duration == check_timetable_duration);

	assert(this->total_duration == check_total_duration);

	for (const Vehicle *v = this->first_shared; v != nullptr; v = v->NextShared()) {

		++check_num_vehicles;

		assert(v->orders.list == this);

	}

	assert(this->num_vehicles == check_num_vehicles);

	Debug(misc, 6, "... detected {} orders ({} manual), {} vehicles, {} timetabled, {} total",

			(uint)this->num_orders, (uint)this->num_manual_orders,

			this->num_vehicles, this->timetable_duration, this->total_duration);

}

/**

 * Checks whether the order goes to a station or not, i.e. whether the

 * destination is a station

 * @param v the vehicle to check for

 * @param o the order to check

 * @return true if the destination is a station

 */

static inline bool OrderGoesToStation(const Vehicle *v, const Order *o)

{

	return o->IsType(OT_GOTO_STATION) ||

			(v->type == VEH_AIRCRAFT && o->IsType(OT_GOTO_DEPOT) && !(o->GetDepotActionType() & ODATFB_NEAREST_DEPOT));

		/* Check if the last and the first order are the same */

		if (v->GetNumOrders() > 1) {

			const Order *last = v->GetLastOrder();

			if (v->orders.list->GetFirstOrder()->Equals(*last)) {

				message = STR_NEWS_VEHICLE_HAS_DUPLICATE_ENTRY;

			}

		}

		/* Do we only have 1 station in our order list? */

		if (n_st < 2 && message == INVALID_STRING_ID) message = STR_NEWS_VEHICLE_HAS_TOO_FEW_ORDERS;

		if (v->orders.list != nullptr) v->orders.list->DebugCheckSanity();

#endif

		/* We don't have a problem */

		if (message == INVALID_STRING_ID) return;

		SetDParam(0, v->index);

		AddVehicleAdviceNewsItem(message, v->index);

	}

}

/**