Hello Bucky, I just wanted a little help; I bought a book "C Programming language" and codes there dont work in Code::Blocks...It always finds some error and I don't know how to deal with that...Is it problem when it is ANSI C99? I don't know what to do, because I'm newbie, I searched Google a lot but I didn't find my answer. If you know what is wrong, I would appriciate help :-) Thank you.