Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/prelude/IO/HFlush.hs

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Distributed under the MIT License.
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module IO (hFlush) where

import DHandle
import NHC.FFI

foreign import ccall hFlushC :: Handle -> IO Int

hFlush :: Handle -> IO ()
hFlush h = do
    i <- hFlushC h
    if i/=0 then do
        errno <- getErrNo
        throwIOError "hFlush" Nothing (Just h) errno
      else
        return ()


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