title: Cuckoo hashing in C
body: <p>Does anybody have an implementation of <a href="http://en.wikipedia.org/wiki/Cuckoo_hashing" rel="noreferrer">Cuckoo hashing</a> in C? If there was an Open Source, non GPL version it would be perfect!</p>
  
  <p>Since Adam mentioned it in his comment, anyone knows why it is not much used? Is it just a matter of implementation or the good theoretical properties do not materialize in practice?</p>