1.cpp

class replacement
{
public:
  struct vmt_t
  {
    void (*dtor)(void* _this);
    getter_fn_t *virtual_getter;
  } *vmt;

  void setter(int a)
  {
    _setter(this, a);
  }

  int getter() const
  {
    return _getter(this);
  }

  int virtual_getter() const
  {
    return vmt->virtual_getter(this);
  }

  void operator delete(void *_this)
  {
    vmt_t *vmt = (vmt_t*)_this;
    vmt->dtor(_this);
    ::operator delete(_this);
  }

  static setter_fn_t *_setter;
  static getter_fn_t *_getter;
};