class DangerClass
{
  public:
    bool dangerMethod(bool condition = true)
    {
      if (condition)
      {
        delete this;
        return true;
      }
      return false;
    }
};

bool func1(DangerClass* ptr)
{
  return ptr->dangerMethod();
}

void func2()
{
  std::cout << "1";
  DangerClass dc;
  func1(&dc);
  std::cout << "2";
}

int main(int argc, char* argv[])
{
  std::cout << "0";
  func2();
  std::cout << "3";
  return 0;
}