and side) argument, returning 1 on a match, 0 otherwise.</div></div><div class=CToolTip id="tt8"><div class=CMethod>
    <blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>virtual function string convert2string()
  </td></tr></table></blockquote>This virtual function is a user-definable hook, called directly by the user, that allows users to provide object information in the form of a string. </div></div><div class=CToolTip id="tt9"><div class=CClass>
    <blockquote><table bord