an id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="dt">complex</span> times_i(<span class="dt">complex</span> z) {</span>
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a>  <span class="dt">complex</span> i = to_complex(<span class="dv">0</span>, <span class="dv">1</span>);</span>
<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a>  <span class="cf">return</span> i * z;</span>
<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabinde