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tcfail043.hs:38:17:
No instance for (Ord_ a0) arising from a use of ‛gt’
The type variable ‛a0’ is ambiguous
Relevant bindings include
search :: a0 -> [a0] -> Bool (bound at tcfail043.hs:37:1)
a :: a0 (bound at tcfail043.hs:38:6)
bs :: [a0] (bound at tcfail043.hs:38:8)
Note: there is a potential instance available:
instance Ord_ Int -- Defined at tcfail043.hs:34:10
In the expression: gt (hd bs) a
In the expression:
if gt (hd bs) a then
False
else
if eq a (hd bs) then True else search a (tl bs)
In the expression:
\ a bs
-> if gt (hd bs) a then
False
else
if eq a (hd bs) then True else search a (tl bs)
tcfail043.hs:40:25:
No instance for (Eq_ a0) arising from a use of ‛eq’
The type variable ‛a0’ is ambiguous
Relevant bindings include
search :: a0 -> [a0] -> Bool (bound at tcfail043.hs:37:1)
a :: a0 (bound at tcfail043.hs:38:6)
bs :: [a0] (bound at tcfail043.hs:38:8)
Note: there are several potential instances:
instance Eq_ a => Eq_ [a] -- Defined at tcfail043.hs:23:10
instance Eq_ Int -- Defined at tcfail043.hs:20:10
In the expression: eq a (hd bs)
In the expression: if eq a (hd bs) then True else search a (tl bs)
In the expression:
if gt (hd bs) a then
False
else
if eq a (hd bs) then True else search a (tl bs)
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