hPutChar

hPutChar :: Handle -> Char -> IO ()
base System.IO, base GHC.IO.Handle
Computation hPutChar hdl ch writes the character ch to the file or channel managed by hdl. Characters may be buffered if buffering is enabled for hdl. This operation may fail with: * isFullError if the device is full; or * isPermissionError if another system resource limit would be exceeded.