pecial">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">golden_ratio_fraction</span>
<span class="special">{</span>
   <span class="keyword">typedef</span> <span class="identifier">T</span> <span class="identifier">result_type</span><span class="special">;</span>

   <span class="identifier">result_type</span> <span class="keyword">operator</span><span class="special">()</span>
   <span class="special">{</span>
      <span class="keyword">return</span> <span class="number">1</span><