Jacob Carlborg: > I would guess it prints the values of all the fields in the struct > returned by "tuple".
That was of course my purpose, because tuples are a way to implement multiple return values, and in some situations I want to print all the items of such return tuple, on separated lines, for debugging purposes, etc. But unfortunately (for me too) that's not the right answer. Try again... I have found a little surprise. Bye, bearophile
