#5411: Typo in 7.7.1.2. Data instance declarations documentation
---------------------------------+------------------------------------------
Reporter: uznx | Owner:
Type: bug | Status: new
Priority: normal | Component: Documentation
Version: 7.0.4 | Keywords:
Testcase: | Blockedby:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
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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
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5411>
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The Glasgow Haskell Compiler
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