[Haskell-beginners] Using symbolic values in the case expression
daniel.is.fischer at web.de
Thu Nov 11 12:24:34 EST 2010
On Thursday 11 November 2010 18:03:10, C K Kashyap wrote:
> I'd like to do something like this -
> Instead of doing this -
> f x = case x of
> 1 -> "One"
> 2 -> "Two"
> I'd like to do this -
> v1 = 1
> v2 = 2
> f x = case of
> v1 -> "One"
> v2 -> "Two"
> Is that possible?
No, case does a pattern match, it checks whether the expression matches the
pattern (patterns are defined in the report, section 3.17,
so variable names (identifiers beginning with a lower case letter) match
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