Operator Overloading 2

• Bracket operator implemented in class scope

int& IntArray::operator [] (size_t i)
{
  return *(data_ + i);
}

• Output operator implemented outside of class scope

ostream& operator << (ostream& os, const IntArray& a)
{
  for (size_t i = 0; i < a.Size() - 1; ++i)
    os << a[i] << ' ';
  os << a[a.Size() - 1] << '\n';
  return os;
}