ref: 18820d704a3ca7b7ecdac94cbf067e5b2a60ad4f
dir: /lib/System/Directory.hs/
module System.Directory(removeFile, doesFileExist) where
import Prelude
import Control.Monad(when)
import Foreign.C.String
import Foreign.Ptr
import System.IO
foreign import ccall "unlink" c_unlink :: CString -> IO Int
removeFile :: FilePath -> IO ()
removeFile fn = do
r <- withCAString fn c_unlink
when (r /= 0) $
error "removeFile failed"
doesFileExist :: FilePath -> IO Bool
doesFileExist fn = do
mh <- openFileM fn ReadMode
case mh of
Nothing -> return False
Just h -> do { hClose h; return True }