> Dear ghc-5.02.2, > > ghc -c -fwarn-unused-matches > says > Warning: Defined but not used: x > > when compiling the function > > f :: Eq a => [(a, a)] -> (a, a) -> [(a, a)] > f ps (x, y) = [(z, y) | (z, x) <- ps] > > Is it a bug?
No.
Cheers,
ghc-5.02.2
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