20 Jan
2015
20 Jan
'15
6:43 a.m.
On 20 Jan 2015, at 11:20, Björn Peemöller wrote:
The reason is the usage of foldr, which changed its type from foldr :: (a -> b -> b) -> b -> [a] -> b -- GHC 7.8.4 to foldr :: Foldable t => (a -> b -> b) -> b -> t a -> b -- GHC 7.10.1 Thus, the use of foldr is now ambiguous. I can fix this by providing a type signature convert :: ([a], String) -> (List a, String)
However, is this breaking change intended?
I believe this kind of breakage was predicted by those opposed to the change of signature. That is not quite the same thing as being intended or desired. Regards, Malcolm