l>&lt;</span><span class=identifier>global_fun</span><span class=special>&lt;</span><span class=keyword>const</span> <span class=identifier>rectangle</span><span class=special>&amp;,</span><span class=keyword>unsigned</span> <span class=keyword>long</span><span class=special>,&amp;</span><span class=identifier>area</span><span class=special>&gt;</span> <span class=special>&gt;</span>
  <span class=special>&gt;</span>
<span class=special>&gt;</span> <span class=identifier>rectangle_container</span><span clas