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[ghc-hetmet.git]
/
ghc
/
tests
/
lib
/
IO
/
openFile001.hs
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-- !!! test that a file opened in ReadMode can't be written to
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import IO
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main = do
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hIn <- openFile "openFile001.hs" ReadMode
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hPutStr hIn "test" `catch` \ err ->
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if isIllegalOperation err
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then putStrLn "ok."
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else error "Oh dear\n"