S. Alexander Jacobson wrote: > This code works echos lines properly under GHCi, > but just sucks in input when running the GHC > compiled executable. > > import IO > main= do > x<-hGetLine stdin > putStr x > main > > Am I doing something wrong?
GHCi automatically disables buffering on stdout for its own purposes. Compiled binaries don't; they should have the same default behaviour as programs which are written in C (stdin/stdout are line buffered if they are correspond to a terminal, and fully buffered otherwise; stderr is always unbuffered). Either: 1. Use putStrLn instead of putStr. 2. Call "hFlush stdout" after each call to putStr. 3. Call "hSetBuffering stdout NoBuffering" before the first call to putStr. -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell
