宏优于 C++ 中的内联

Advantage of macro over in-line in C++(宏优于 C++ 中的内联)

问题描述

我们知道内联是有利的，因为它们由编译器检查，并且与宏相比，当作为参数传递时，相同的操作(如 ++x)不会多次计算.

We know that in-line are favorable as they are checked by the compiler and same operation ( like ++x ) does not evaluate more than once when passed as an argument as compared to macros.

但在一次采访中，有人问我在 C++ 中宏更适合内联的具体优势或情况.

But in an interview I was asked the specific advantages or the circumstances when a macro is more favorable to inline in C++.

有没有人知道这个问题的答案或者可以给出一个想法?

Does anyone know the answer or can give a thought on this question ?

推荐答案

我唯一能想到的就是有一些技巧可以用宏来完成，而内联函数却无法做到.在编译时将令牌粘贴在一起，以及那种骇客.

The only thing I can think of is there are some tricks that you can do with a macro that can't be done with an inline function. Pasting tokens together at compile-time, and that sort of hackery.

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