C/C ++中函数main()的地址 [英] Address of function main() in C/C++

问题描述

是否可以找到C或C ++中 main()的地址? 由于它本身是一个函数，是否会有它自己的地址?

Is there a way to find out the address of main() in C or C++ ? Since it is itself a function ,would there be an address of it own ?

推荐答案

C

好的.只需继续进行即可.

C

Sure. Simply go ahead and do it.

#include <stdio.h>

int main(void)
{
   printf("%p\n", &main);
}

---

C ++

不允许使用main的地址，因此出于您的目的，没有一个地址:

---

C++

It is not permitted to take main's address so, for your purposes, there isn't one:

[C++11: 3.6.1/3]:不得在程序内使用main函数. [..]

[C++11: 3.6.1/3]: The function main shall not be used within a program. [..]

但是，在GCC中，您可以通过编译器扩展采用与C中相同的方法:

However, in GCC you can take the same approach as you would in C, via a compiler extension:

#include <iostream>

int main()
{
   std::cout << (void*)&main << '\n';
}

您将收到一条警告，指出它不符合要求.

You will receive a warning that this is not compliant.

这篇关于C/C ++中函数main()的地址的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！