c++ - 类里面数组声明的问题

Question

#include <iostream>

using namespace std;

const int i = 1;

class T
{
    public:
    char arr[i];
    enum{i = 2};
};

int main()
{
    T a;
    cout << sizeof(a.arr) << endl;
   // getchar();
    return 0;
}

请问为什么输出打印是1啊？为什么不是2呢？不是该从类里面查找吗？

Answer 1

Because char arr[i] is declared before enum{i = 2}, it will take the value of the global variable i. If enum{i = 2} is declared before char arr[i], the output is 2