Re: [GHC] #8118: <stdout>: commitAndReleaseBuffer: invalid argument (invalid character)

4 Feb 2016

      #8118: <stdout>: commitAndReleaseBuffer: invalid argument (invalid character)
-------------------------------------+-------------------------------------
        Reporter:  guest             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #5666             |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 Replying to [comment:17 HairyDude]:
...
This gets correct output:
{{{
import GHC.IO.Encoding
import System.Win32.Console
main = do
    ...
    setLocaleEncoding utf8
    setConsoleOutputCP 65001
    ...
}}}
''If you're only dealing with files''. If you attempt to read/write from
 the console, things still break:

 {{{#!hs
 import GHC.IO.Encoding
 import System.Win32.Console

 main :: IO ()
 main = do
     setLocaleEncoding utf8
     setConsoleOutputCP 65001
     putStrLn "→"
 }}}

 {{{
 *Main> main
 *** Exception: <stdout>: hPutChar: invalid argument (invalid character)
 }}}

--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8118#comment:19
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