class Person {

  // copy assignment operator with exception safety
  Person& operator=(const Person& other) {
    if (this != &that) {
      char *temp = new char[strlen(other.name)+1];
      /* If the above statement throws,
       * the object is still in the same state as before.
       * None of the following statements will throw an exception */
      strcpy(temp, other.name);
      delete[] name;
      name = temp;
      age = other.age;
    }
    return *this;
  }
}