A great answer to a similar problem here http://stackoverflow.com/a/4583502/456341 http://stackoverflow.com/a/4583502/456341. No loop, and no conditional recur

A great answer to a similar problem here http://stackoverflow.com/a/4583502/456341 http://stackoverflow.com/a/4583502/456341. No loop, and no conditional recursion. The flaw is to use arithmetic on stack function pointer, which is not recommended nor strictly defined.