lt;&gt;</span> <span class="special">&gt;()</span>
      <span class="special">}</span>
    <span class="special">}</span> <span class="comment">//     namespace constants</span>

    <span class="comment">// Namespace specific versions, for the three built-in floats:</span>
    <span class="keyword">namespace</span> <span class="identifier">float_constants</span>
    <span class="special">{</span>
      <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">float</span