C++ 指针的偏移 The offset of a pointer in C++

A problem from my friend, what‘s the result of the following code:

class str{
public:
  int x;
  char s[0];
};

class foo{
public:
  str * p;
};
int main() {
  foo f = {0};
  str* p1 = NULL;
  if (f.p->s){
    printf("%d\n", f.p->s);
  }
  return 0;
}

  foo f = {0};

C++ 指针的偏移 The offset of a pointer in C++,布布扣,bubuko.com

C++ 指针的偏移 The offset of a pointer in C++

原文：http://blog.csdn.net/taoqick/article/details/22760129