+++ /dev/null
-import IO -- 1.3
-
-main =
- openFile "io013.in" ReadMode >>= \ h ->
- hFileSize h >>= \ sz ->
- print sz >>
- hSeek h SeekFromEnd (-3) >>
- hGetChar h >>= \ x ->
- putStr (x:"\n") >>
- hSeek h RelativeSeek (-2) >>
- hGetChar h >>= \ w ->
- putStr (w:"\n") >>
- hIsSeekable h >>= \ True ->
- hClose h >>
- openFile "/dev/null" ReadMode >>= \ h ->
- hIsSeekable h >>= \ False ->
- hClose h