The original code and explanation:<p><a href="http:&#x2F;&#x2F;www.codeproject.com&#x2F;Articles&#x2F;7150&#x2F;Member-Function-Pointers-and-the-Fastest-Possible" rel="nofollow">http:&#x2F;&#x2F;www.codeproject.com&#x2F;Articles&#x2F;7150&#x2F;Member-Function-Poi...</a>