c++ - 什么是多级指针？

Question

阅读关于 const_cast 的内容时我遇到了如下句子:

Only the following conversions can be done with const_cast. In particular, only const_cast may be used to cast away (remove) constness or volatility.

1) Two possibly multilevel pointers to the same type may be converted between each other, regardless of cv-qualifiers at each level.

我已经在谷歌上搜索了一下，但没有找到关于多级指针的任何简明、直接的定义。那么:到底什么是多级指针？

(可能的脸掌时刻)它只是一个指向指针的指针，或指向指向指针的指针的指针，例如int ** 还是 int ***？

Answer 1

Is it just a pointer to a pointer, or pointer to a pointer to a pointer, e.g. int ** or int ***?

就是这样，是的。