Well, one could either write a whole book about it or just say: do whatever seems best in every individual case. Fundamentally, an error is just a branch in an

Well, one could either write a whole book about it or just say: do whatever seems best in every individual case. Fundamentally, an error is just a branch in an execution path. Your program might recover from it or not, it might be important to inform the user about it or not, it might be important to inform the developer about it or not, ...