At 2002-11-18 11:05, Sven Panne wrote: >global :: a -> IORef a >global a = unsafePerformIO (newIORef a)
This is useful, you can do this with it:
ref = global Nothing
convert :: a -> IO b
convert a = do
writeIORef ref (Just a)
Just b <- readIORef ref
return b
--
Ashley Yakeley, Seattle WA
_______________________________________________
Glasgow-haskell-users mailing list
[EMAIL PROTECTED]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
