[Haskell-cafe] Where is `newTVarIO` defined ?

[Ben Millwood]

On Tue, Nov 24, 2009 at 11:11 PM, zaxis <z_axis at 163.com> wrote:
>
> I cannot hoogle it. It appears in Pugs:
>
> run' ("-d":rest)                 = do
>    info <- fmap Just (io $ newTVarIO Map.empty)
>    let ?debugInfo = info
>    run' rest
>
> Sincerely!
>
> -----
> fac n = foldr (*) 1 [1..n]
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http://hackage.haskell.org/packages/archive/stm/latest/doc/html/Control-Concurrent-STM-TVar.html
The docs for it are in GHC.Conc but you probably wouldn't import it from there.