#1241: Functional dependency Coverage Condition is lifted, and should not be
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Reporter: guest | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.8
Component: Compiler (Type checker) | Version: 6.6
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Comment (by guest):
Hello,
I was referring to the condition that GHC used to implement in version
6.4. There is a brief description at: http://hackage.haskell.org/trac
/haskell-prime/wiki/FunctionalDependencies (in the section "GHC and
Hugs"). There is a more detailed discussion that uses the name "Weak
Coverage Condition" in Section 6.1 of "Understanding functional
dependencies via Constraint Handling Rules".
-Iavor
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1241>
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The Glasgow Haskell Compiler
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