The same overloaded operator allows you to construct objects of class A, B, and C in shared memory.

同一个重载的操作符让您可以在共享内存中构造类 A、B 和 C 的对象。

youdao

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。

youdao

Languages such as C# have added the "using" construct, which helps the latter two problems, but again for nontrivial cases it is complex and error prone.

诸如 C# 等语言添加了“using”构造，它有助于解决后面两个问题，但对于特殊情况，它也会很复杂且容易出错。

youdao

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

Here, too, gets a little ugly and this is why I tend not to like this construct, at least in C, but sometimes it's necessary or it's the simplest way to achieve this goal.

这里也有点难看的，这也是为什么我,不太喜欢这个结构，至少在C语言中，但是有时它是必须的,或者它是达到目标最简单的方法。

哈佛公开课 - 计算机科学课程节选

So turns out C supports what's called a switch, a switching construct.

所以C语言支持叫做switch的东西，一个开关结构。

哈佛公开课 - 计算机科学课程节选