I have defined:
> class Aggregate a where
> toList::(Num b)=>a->[b]
> fromList::(Num b)=>[b]->a
> data MyAgg =Agg Int Int
> instance Aggregate MyAgg where
> toList (Agg x y) = [x,y]
> fromList [x,y] = (Agg x y)
Hugs won't compile this because it says the declared type is too general.
Any function that requires an Aggregate can use MyAgg. Why am I
getting an error?
-Alex-
___________________________________________________________________
S. Alexander Jacobson i2x Media
1-212-697-0184 voice 1-212-697-1427 fax
