cator_);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">protected</span>:</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <span class="keywordtype">int</span> snapshot_for_converged_ ;                 <span class="comment">/* the index of the steady converged starting point. */</span></div><div class="line"><a name="l0004