blob: f4b27e9d2172f843fc517ca489cc961243791904 (
plain)
1
2
3
4
5
6
7
8
9
10
|
drvfail011.hs:8:1:
No instance for (Eq a) arising from a use of ‛==’
Possible fix: add (Eq a) to the context of the instance declaration
In the expression: ((a1 == b1))
In an equation for ‛==’: (==) (T1 a1) (T1 b1) = ((a1 == b1))
When typechecking the code for ‛==’
in a standalone derived instance for ‛Eq (T a)’:
To see the code I am typechecking, use -ddump-deriv
In the instance declaration for ‛Eq (T a)’
|
