eno">   46</span>  <span class="keyword">static</span> Elt reroot(<span class="keyword">const</span> Elt&amp; omega_n, uint64_t n, uint64_t r,</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>                    <span class="keyword">const</span> Field&amp; F) {</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>    Elt omega_r = omega_n;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span> 