stackoverflow 上的大多数人都说在 C++ 中使用宏很糟糕。 我不明白这背后的想法。我知道 C++ 有替代方案 但为什么它是“错误的”？
最佳答案
让我们看看 Stroustrup 怎么说:
So, what's wrong with using macros?
Macros do not obey the C++ scope and type rules. This is often the cause of subtle and not-so-subtle problems. Consequently, C++ provides alternatives that fit better with the rest of C++, such as inline functions, templates, and namespaces.
...
And yes, I do know that there are things known as macros that doesn't suffer the problems of C/C++ preprocessor macros. However, I have no ambitions for improving C++ macros. Instead, I recommend the use of facilities from the C++ language proper, such as inline functions, templates, constructors (for initialization), destructors (for cleanup), exceptions (for exiting contexts), etc.
关于c++ - 为什么在 C++ 中使用宏被认为是错误的？ C++标准库的使用和使用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18568795/