I’m trying to understand copy assignment in C++. I know it’s best to use copy-and-swap idiom for this operator. But for this simple class without consider the Exception safety, when will *ps = *(h.ps); fail? could you please provide some examples where this can go wrong? thanks

class HasPtr {
public:
  HasPtr(std::string const & s = std::string()):
    ps(new std::string(s)), i(0) {}

  HasPtr(HasPtr const & h):
    ps(new std::string(*(h.ps))), i(h.i) {}

  HasPtr & operator = (HasPtr const & h) {
    *ps = *(h.ps);
    i = h.i;
    return *this;
  }

  ~HasPtr(){ delete ps;}

private:
  std::string * ps;
  int i;
};

I’ve tried to use GPT, it says there will be a memory leak, but I just can’t see it