21 Nov
2001
21 Nov
'01
10:35 a.m.
Since the Report states that the derived Show instances only insert parentheses where needed and that the derived Read instances can read the output produced by show, I would suggest to change all occurences of {showsPrec 10,readsPrec 10} to {showsPrec 0,readsPrec 0} in the above code.
That seems like a reasonable suggestion, but it doesn't fix the bug. Regards, Malcolm