[Haskell-cafe] Needing strictness?

[Daniel Fischer]

Am Donnerstag 22 Oktober 2009 04:15:56 schrieb michael rice:
> Busy night. I wanted the question and response to be on the same line (see
> below), so I used putStr instead of putStrLn, but Haskell jumps the gun and
> goes to the second line to get the response before the question ever gets
> printed. Is this an example of needing strictness? How would I do that, or
> something else, to get the result I want?
>
>          putStrLn "Some yes/no question (y/n)?"
>          ans <- getLine
>
> Michael

Hit send too quickly:

alternatively

hFlush stdout

between question and answer.