pe">double</span>&gt;();</div>
<div class="line">*  </div>
</div><!-- fragment --> It is useful if the total cost cannot be stored in the <code>Cost</code> type of the algorithm, which is the default return type of the function.</dd></dl>
<dl class="section pre"><dt>Precondition</dt><dd><a class="el" href="a00074.html#a9f51b418026d5480f76426f974567c5d">run()</a> must be called before using this function. </dd></dl>

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