Hello,
I would like to ask something that results in when I have the following
commands
data Color = Red | Green | Blue | Indigo | Violet deriving (Enum,Show,Read)
(read.show) x
interactive:1:1:
Ambiguous type variable `a' in the constraint:
`Read a' arising from a use of `read' at
I would like to ask something that results in when I have the following
commands
data Color = Red | Green | Blue | Indigo | Violet deriving (Enum,Show,Read)
(read.show) x
interactive:1:1:
Ambiguous type variable `a' in the constraint:
`Read a' arising from a use of `read' at
interactive:1:1:
Ambiguous type variable `a' in the constraint:
`Read a' arising from a use of `read' at interactive:1:1-4
Probable fix: add a type signature that fixes these type variable(s)
What the error message says is, it doesn't know which type to read to.
read has
