--- Huazhi (Hank) Gong" <hankgong@nm.gist.ac.kr wrote:

Thank you very much for introducing tail recursion. It's my first time to hear this. :)

However, I'm wondering whether every loop structure from C like language can

be translated to this kind of tail recursion?

Yes, as discovered by John McCarthy almost 50 years ago in "Recursive functions of symbolic expressions and their computation by machine. Communications of the ACM, 3:184-195, 1960". Ciao, Janis Voigtlaender.