On 11-10-16 01:56 PM, Patrick Browne wrote:
I get the same results from Listing 1 and Listing 2 below.
I carefully diff'ed the two listings and found no difference except for comments.
-- ====Listing 1- Subclass==== data Shed = Shed class Building building where addressB :: building -> Integer addressB b = 1 -- subclass, but none in Listing 2 class Building house => House house where addressH :: house -> Integer addressH b = 0 instance Building Shed where instance House Shed where -- ====Listing 2 -- No subclass==== data Shed = Shed class Building building where addressB :: building -> Integer addressB b = 1 -- No subclass class Building house => House house where addressH :: house -> Integer addressH b = 0 instance Building Shed where instance House Shed where
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