Short answer: no, at least not in C. You can construct such constructs in other languages and in theory even C.

简单回答：没有，至少在C语言里是没有的，你可以,在C语言或其他语言中创建这样一个结构体。

哈佛公开课 - 计算机科学课程节选

Cold call somebody who hasn't got their hand up.

你去找一个没有举手的人回答

耶鲁公开课 - 博弈论课程节选