RentalsResult rentalsCustomerAdd(Rentals rentals, int id, char* name){

	Client newClient=clientCreate(name,id);
	if (!newClient){
		return RENTALS_OUT_OF_MEMORY;
	}
	SetResult result=setAdd(rentals->Clients, newClient);
	if (result==SET_ITEM_ALREADY_EXISTS){
		free(newClient);
		return RENTALS_CUSTOMER_ALREADY_EXISTS;
	}
	if (result==SET_OUT_OF_MEMORY){
		free(newClient);
		return RENTALS_OUT_OF_MEMORY;
	}
	return RENTALS_SUCCESS;
}