std</span><span class=special>::</span><span class=identifier>ostream</span><span class=special>&amp; </span><span class=identifier>os</span><span class=special>,</span><span class=keyword>const </span><span class=identifier>employee</span><span class=special>&amp; </span><span class=identifier>e</span><span class=special>)
  </span><span class=special>{
    </span><span class=identifier>os</span><span class=special>&lt;&lt;</span><span class=identifier>e</span><span class=special>.</span><span class=identi