[Haskell-cafe] newTArrayIO

Chad Scherrer chad.scherrer at gmail.com
Fri Jan 26 14:34:17 EST 2007

This seems like a natural thing to have around, but it's not in GHC 6.6...

newTArrayIO :: (Enum i, Ix i) => (i, i) -> a -> IO (TArray i a)
newTArrayIO (a,b) = liftM (TArray . listArray (a,b)) . sequence . zipWith
ignore [a..b] . repeat . newTVarIO
  where ignore = flip const

I haven't done any testing with this beyond type checking, but it seems like
it could be useful for similar cases to newTVarIO. Has anyone else played
with anything similar?


Chad Scherrer

"Time flies like an arrow; fruit flies like a banana" -- Groucho Marx
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