ord>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span> <span class=identifier>project</span><span class=special>(</span><span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span><span class=keyword>const</span><span class=special>;</span>
  <span class=keyword