X-Authentication-Warning:	delorie.com: mailnull set sender to djgpp-bounces using -f
Date:	Mon, 7 Jan 2002 15:10:14 -0500
Message-Id:	<200201072010.g07KAEA00886@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	djgpp AT delorie DOT com
In-reply-to:	<SIm_7.17759$Si6.4186062@monolith.news.easynet.net>
	(charlieo AT ukonline DOT co DOT uk)
Subject:	Re: scanf
References:	<SIm_7.17759$Si6 DOT 4186062 AT monolith DOT news DOT easynet DOT net>
Reply-To:	djgpp AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	djgpp AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

> scanf("%d ", &d);
> printf("%d ", d);
> 
>  not print integer immediately, instead requiring to press a non-numerical
> character first?

Because the console (stdin/stdout) is line-oriented.  You have to
enter a whole line, and then your program processes it.  You have to
print a whole line before it's printed.  Try using fflush(stdout) for
the second problem; for the first you should use fgets() or one of the
console-specific functions like getkey().

Besides, if you don't press a non-numerical character, how does your
program know that you're done typing in the number?

- Raw text -