Thanks a lot. .this really helps.. On Feb 3, 2015 10:35 PM, "Tristan Seligmann" wrote:

On 4 February 2015 at 05:23, Madhu Babu wrote:

...

Basically, in the following code, we print a line first and the read the line from stdin. This behavior works perfectly fine when using “runhaskell guess.hs”. But when i say “./guess”, i had to type in a number directly ( i.e. first prompt is skipped ).

This is most likely due to stdio buffering; usually stdin/stdout are line buffered, so data you write with putStr may not actually be written until a newline is written. This post / thread details some ways to handle this problem:

https://www.haskell.org/pipermail/beginners/2010-March/003692.html -- mithrandi, i Ainil en-Balandor, a faer Ambar