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T16702.hs:12:1: error:
• Unacceptable result type in foreign declaration:
Unexpected nested forall
• When checking declaration:
foreign import ccall safe "math.h pow" c_pow
:: CDouble
-> forall (a :: Type). CDouble -> forall (b :: Type). CDouble
T16702.hs:17:1: error:
• Unacceptable result type in foreign declaration:
Unexpected nested forall
• When checking declaration:
foreign import ccall safe "malloc" malloc1
:: CSize -> forall a. IO (Ptr a)
T16702.hs:20:1: error:
• Unacceptable argument type in foreign declaration:
‘Show a’ cannot be marshalled in a foreign call
• When checking declaration:
foreign import ccall safe "malloc" malloc2
:: Show a => CSize -> IO (Ptr a)
T16702.hs:23:1: error:
• Unacceptable argument type in foreign declaration:
‘Show a’ cannot be marshalled in a foreign call
• When checking declaration:
foreign import ccall safe "malloc" malloc3
:: CSize -> Show a => IO (Ptr a)
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