pan> begin;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    }</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keywordflow">while</span> (begin != end) {</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;      x = begin-&gt;rune;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;      <span class="keywordflow">if</span> ((<span class="charliteral">&#39;a