cast4.c

来自「用于进行gcc测试」· C语言 代码 · 共 26 行

// { dg-do run }
// PR c++/22132

extern "C" void abort ();

struct foo {
  int a;
  int b;
};

class Foobar : public foo {
public:
  Foobar() { a = 1; b = 2; }
  virtual ~Foobar() {}
};

Foobar obj;
const Foobar* objPtr = &obj;
foo* f = (foo*)objPtr;

int main () {
  if (f->a != 1 || f->b != 2)
    abort ();
}