blob: 6e0da922c58bc3f99cd770327feb0429bdc9a487 (
plain)
1
2
3
4
5
6
7
8
9
10
|
tcfail040.hs:19:5: error:
Ambiguous type variable ‘a0’ arising from a use of ‘<<’
prevents the constraint ‘(ORD a0)’ from being solved.
Probable fix: use a type annotation to specify what ‘a0’ should be.
These potential instance exist:
instance ORD (a -> b) -- Defined at tcfail040.hs:17:10
In the first argument of ‘(===)’, namely ‘(<<)’
In the expression: (<<) === (<<)
In an equation for ‘f’: f = (<<) === (<<)
|
