 <span class="special">&gt;</span>         <span class="identifier">tom_rational</span><span class="special">;</span>

<span class="special">}}</span> <span class="comment">// namespaces</span>
</pre>
<p>
          The <code class="computeroutput"><span class="identifier">tommath_rational</span></code> back-end
          is used via the typedef <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">multiprecision</span><span class="special">