#565: overlapping instances & fundeps broken
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Reporter: ashley-y | Owner:
Type: bug | Status: new
Priority: low | Milestone: _|_
Component: Compiler (Type checker) | Version: 5.00
Resolution: None | Keywords:
Difficulty: Unknown | Os: Unknown/Multiple
Testcase: | Architecture: Unknown/Multiple
Failure: None/Unknown |
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Changes (by ganesh):
* failure: => None/Unknown
Comment:
The problem with all these examples is that someone (in another module)
add {{{instance Num Bool}}}, and now the instances really do overlap, and
the fundep is violated.
So I think this bug should be closed as invalid.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/565#comment:5>
GHC <http://www.haskell.org/ghc/>
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