ss="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
   <span class="identifier">mpfr</span><span class="special">::</span><span class="identifier">mpreal</span><span class="special">::</span><span class="identifier">set_precision</span><span class="special">(</span><span class="number">500</span><span class="special">);</span> <span class="comment">// 500 bit precision</span>
   <span class="identifier">mpfr</span><span class="special">::</span><span class="identifier">