RE: Annotation for unfolding wanted

| However my point was more on a semantic point of view: If I write a function | in a recursive way, but actually do nothing else than a loop, I would like | a) that the compiler unrolls it to a loop and | b) that I can specify such a requirement, while violating it emits an error. What does it mean to say "the compiler unrolls it to a loop". If GHC sees a tail recursive function, it certainly compiles it to a loop! (But that's not called "unrolling".) Simon