Hong Yang <hyang...@gmail.com> writes: > But in my program, I did not define "--++".
And that's what the error tells you, no? Defining operators (or not) doesn't change the syntax. Since the lexeme --++ is syntactially a valid operator, it will be parsed as such, regardless of whether it is defined or not. -k -- If I haven't seen further, it is by standing in the footprints of giants _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
