latten(<span class="keywordtype">int</span> i)</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    {</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>        <span class="keywordflow">if</span> <span class="keyword">constexpr</span>(DEBUG_VIEWER)</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>        {</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   8