How to write an assignment operator= for an object?

class person{
private:
string name;
public:
person& operator=(const person& rightValue){.......; return *this;}
}

• Fist check the self-assignment to prevent the dangling pointer. For example, if "this" == "&rightValue", after deleting "this","rightValue" doesn't exist.
• Second make clean-up, delete this.
• Third make the reference to object itself is returned.