"Andreas S" <[EMAIL PROTECTED]> writes:
This works find in ghci, but the compiled code (ghc 6.4.2) executes getLine
first before executing putStr. Instead of:
Who are you? myself
Hello, myself
I got:
myself
Who are you? Hello, myself
I have now fixed the WikiBook to use putStrLn instead of p
On Sat, Sep 02, 2006 at 05:11:33PM -0700, Jeremy Shaw wrote:
> GHCi and the compiled program do not buffer the output in quite the
> same way.
This comes up so often that perhaps GHCi should advertise those
differences. For example, the starting message could say something
like this:
___
Hello,
GHCi and the compiled program do not buffer the output in quite the
same way. In the compile program, stdout is line buffered, so it will
not output anything until it gets a '\n'. You can force the output
using 'hFlush stdout':
> import System.IO
> main = do
>putStr "Who are you? "
>
Hello, i've got a newbie question to ask. I'd like to ask for user input in
the same line as the prompt. I found this example on the web
main = do
putStr "Who are you? "
name <- getLine
putStrLn ("Hello, " ++ name)
This works find in ghci, but the compiled code (ghc 6.4.2) executes getLine
