Typo in 7.7.1.2. Data instance declarations documentation
In User's Guide in section 7.7.1.2. Data instance declarations is the example:
" Instead, you would have to write foo as a class operation, thus:
class C a where
foo :: T a -> Int
instance Foo Int where
foo A = 1
instance Foo Char where
foo B = 2
"
I think the first line should be "class Foo a where", not C.
http://haskell.org/ghc/docs/7.2.1/html/users_guide/type-families.html#data-instance-declarations
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.0.4 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Documentation |
| Test case | |
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