title: Fast dynamic casting progress
body: <p>A little while ago, I found that very interesting paper on a very neat performance upgrade for dynamic_cast in C++: <a href="http://www2.research.att.com/~bs/fast_dynamic_casting.pdf" rel="nofollow">http://www2.research.att.com/~bs/fast_dynamic_casting.pdf</a>. </p>
  
  <p>Basically, it makes dynamic_cast in C++ way faster than the traditional research in inheritance tree. As stated in the paper, the method provides for a fast, constant-time dynamic casting algorithm.</p>
  
  <p>This paper was published in 2005. Now, I am wondering if the technique was ever implemented somewhere or if there are plans to implement it anywhere?</p>