虚拟描述函数 [英] Virtual Destrctor Function

问题描述

当我需要在基类中使用虚拟命运器

函数时，你能不能告诉我？


在此先感谢，

Michael

解决方案

Michael写道：

当我需要在基类中使用虚拟destctor

函数时，你能不能告诉我？

当一个类的对象应该被多态删除时。


V

-

请在通过电子邮件回复时删除资金''A'

我没有回复最热门的回复，请不要问

Michael写道：

当我需要在基类中使用虚拟destctor

函数时，你能不能告诉我？

更好的问题可能在你不在的时候。默认使用

虚拟析构函数，除非你知道你不需要它...你将会b / b
永远不会从基类ptr中删除一个子类。 br />

Victor Bazarov写道：

Michael写道：

当我需要在基类中使用虚拟destctor

函数时，你能不能告诉我？

当一个类的对象应该被多态删除时。


V

-

请在通过电子邮件回复时删除资金''A'

我没有回复最热门的回复，请不要问

我知道一点多态性。如果

可以，你能解释一下吗？


谢谢，

Michael

Hi,

Could you pleaes let me know when I need to use virtual destctor
function in the base class?

Thanks in advance,
Michael

解决方案

Michael wrote:

Could you pleaes let me know when I need to use virtual destctor
function in the base class?

When an object of the class is supposed to be deleted polymorphically.

V
--
Please remove capital ''A''s when replying by e-mail
I do not respond to top-posted replies, please don''t ask

Michael wrote:

Hi,

Could you pleaes let me know when I need to use virtual destctor
function in the base class?

The better question is probably when don''t you. Default to using a
virtual destructor unless you KNOW you don''t need it...that you will
never be deleting a subclass from a base class ptr.

Victor Bazarov wrote:

Michael wrote:

Could you pleaes let me know when I need to use virtual destctor
function in the base class?

When an object of the class is supposed to be deleted polymorphically.

V
--
Please remove capital ''A''s when replying by e-mail
I do not respond to top-posted replies, please don''t ask

I know a little of polymorphy. Could you explain it a little more if
possible?

Thanks,
Michael

这篇关于虚拟描述函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！