#2189: hSetBuffer stdin NoBuffering doesn't seem to work in ghc 6.8.2 on Windows
XP
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Reporter: FalconNL | Owner:
Type: bug | Status: new
Priority: normal | Component: GHCi
Version: 6.8.2 | Severity: normal
Keywords: hsetbuffering buffering buffer | Testcase:
Architecture: x86 | Os: Windows
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The following program repeats inputted characters until the escape key is
pressed.
{{{
import IO
import Monad
import Char
main :: IO ()
main = do hSetBuffering stdin NoBuffering
inputLoop
inputLoop :: IO ()
inputLoop = do i <- getContents
mapM_ putChar $ takeWhile ((/= 27) . ord) i
}}}
Because of the "hSetBuffering stdin NoBuffering" line it should not be
necessary to press the enter key between keystrokes. This program works
correctly in WinHugs (sep 2006 version). However, GHC 6.8.2 does not
repeat the characters until the enter key is pressed. The problem was
reproduced with all GHC executables (ghci, ghc, runghc, runhaskell), using
both cmd.exe and command.com on Windows XP Professional.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2189>
GHC <http://www.haskell.org/ghc/>
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