Dear Hugs maintainers,
the version of hugs in the repository stumbles over the following
program (which the february 2001 version compiles without problems):
> data Dir = C | N | NE | E | SE | S | SW | W | NW
> deriving (Eq, Read, Show, Enum, Ord)
> instance Num Dir where
> a + b = toEnum (fromEnum a + fromEnum b)
> a - b = toEnum (fromEnum a - fromEnum b)
Parsing
ERROR error.lhs:6 - Syntax error in declaration (unexpected `-')
Just to let you know ...
Cheers, Ralf
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