blob: a5e6a543ee62973845112fda48d70dd44ae8462e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
|
<interactive>:5:10:
Illegal instance declaration for `C [Int]'
(All instance types must be of the form (T a1 ... an)
where a1 ... an are *distinct type variables*,
and each type variable appears at most once in the instance head.
Use -XFlexibleInstances if you want to disable this.)
In the instance declaration for `C [Int]'
<interactive>:7:10:
Overlapping instance declarations:
instance C [Int] -- Defined at <interactive>:7:10
instance C a => C [a] -- Defined at <interactive>:8:10
|