3 Jun
2003
3 Jun
'03
3:28 a.m.
Sorry, I've just worked it out. PortNumber is an instance of the class Enum so we can use toEnum :: Int -> a Tom On Tue, 3 Jun 2003 05:25 pm, Thomas L. Bevan wrote:
Hi,
How can I take some input and convert this into a PortID ? I don't quite understand why the constructor PortNumber doesn't have the signature
PortID = PortNumber Int | ...
Instead it is
PortID = PortNumber PortNumber
where PortNumber is not a member of the Read class.
Tom
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