low">else</span></div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                ++iterator;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;            <span class="keywordflow">return</span> old;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        }</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;        </div><div class="line"><a name="l00185"></a><span class="li