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Glasgow Haskell Compiler
GHC
Commits
819fc1bf
Commit
819fc1bf
authored
Jun 17, 2008
by
Simon Marlow
Browse files
add 6.8 output
parent
8b8ece11
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1
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testsuite/tests/ghc-regress/deriving/should_fail/drvfail002.stderr-6.8
0 → 100644
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819fc1bf
drvfail002.hs:15:0:
Ambiguous constraint `X T c'
At least one of the forall'd type variables mentioned by the constraint
must be reachable from the type after the '=>'
In the instance declaration for `Show T'
drvfail002.hs:18:0:
No instance for (X T c)
arising from the 'deriving' clause of a data type declaration
at drvfail002.hs:18:0-25
Possible fix: add an instance declaration for (X T c)
When deriving the instance for (Show S)
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