what operator must be overloaded as member function?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/3088464/can-c-assignment-operators-be-free-functions">Can C++ assignment operators be free functions?</a>  </p>
</blockquote>



<p>what operator must be overloaded as member function? In c++</p>
