Hi > >From the logical point of view tailMay is the right one. > It pushes the error handling to the caller programm. > > tail = fromJust . tailMay
The error messages suffer: tail [] = "error: fromJust Nothing" That's why I supplied tailNote, where tailNote "foo broke its invariant!" [] gives the message "error: tail [], foo broke its invariant!" Thanks Neil _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
