s="identifier">int_</span><span class="special">&lt;</span><span class="identifier">N</span><span class="special">&gt;))</span>
<span class="special">{</span>
  <span class="keyword">int</span> <span class="identifier">required_precision</span> <span class="special">=</span> <span class="identifier">N</span> <span class="special">?</span> <span class="identifier">N</span> <span class="special">:</span> <span class="identifier">tools</span><span class="special">::</span><span class="identifier">digits</span>