blob: ddd67b20744779df58954a7acf75c1514f0999a9 (
plain)
1
2
3
4
5
6
|
T3834.hs:8:1:
Can't make a derived instance of ‛C T’:
‛C’ is not a derivable class
Try GeneralizedNewtypeDeriving for GHC's newtype-deriving extension
In the stand-alone deriving instance for ‛C T’
|