I would agree with sibling, and expand his comment a bit. Tail calls are just the specialization of continuation passing (or of having reified continuations pro

I would agree with sibling, and expand his comment a bit. Tail calls are just the specialization of continuation passing (or of having reified continuations programmer accessible. Actually, all control flow is the application of a continuation. So while I agree that tail calls are not used as the basis for exceptions, the parent concept of continuation passing does.