#2828: TcTyFuns.uMeta: normalisation shouldn't allow x ~ x
-------------------+--------------------------------------------------------
Reporter: pizza | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.10.1 | Severity: normal
Keywords: | Testcase:
Os: Linux | Architecture: x86
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{{{
[EMAIL PROTECTED]:~/proj/truegraph$ ghci stats.hs
GHCi, version 6.10.0.20081007: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( stats.hs, interpreted )
ghc: panic! (the 'impossible' happened)
(GHC version 6.10.0.20081007 for i386-unknown-linux):
TcTyFuns.uMeta: normalisation shouldn't allow x ~ x
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
>
}}}
where stats.hs is:
{{{
mean :: (Num b) => [a] -> (a -> b) -> b
mean set f =
let total = sum $ map f set
mean' = total / fromIntegral $ length set
in mean'
}}}
NOTE that i'm not even sure if this code is correct or makes sense, i'm in
the middle of growing it.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2828>
GHC <http://www.haskell.org/ghc/>
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