在c++中(在C语言中没有)，指针指向数组的可用情况。

Consider following code:

考虑下面的代码:

int main() {
    int (*p)[]; // pointer to array with unspecified bounds

    int a[] = {1};
    int b[] = {1,2};

    p = &a; // works in C but not in C++
    p = &b; // works in C but not in C++

    return 0;
}
int main(