[Haskell-cafe] Extending the idea of a general Num to other types?
bf3 at telenet.be
Sun Sep 2 15:16:12 EDT 2007
Snif, this is sad... :-( Oh well, maybe this gets improved in Haskell
Lennart Augustsson wrote:
> You're right. The list syntax is only for lists in Haskell. It would
> be nice if the list syntax was overloaded too.
> You can overload numeric literals (by defining fromInteger) and string
> literals (by defining fromString, in 6.7).
> BTW, the [1..10] syntax is overloaded, you need an Enum instance.
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