ntifier>size_t</span> <span class=identifier>salary</span><span class=special>()</span><span class=keyword>const</span><span class=special><b>&amp;</b>;</span> <span class=comment>// note the &amp;</span>
<span class=special>};</span>

<span class=keyword>typedef</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span>
  <span class=identifier>employee</span><span class=special>,</span>
  <span class=identifier>indexed_by</span><span class=special>&lt;</span>
    <span class