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Date: Sun, 05 Jul 2009 13:53:56 +0200
From: Christoph Mallon <christoph.mallon@gmx.de>
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To: Alexander Best <alexbestms@math.uni-muenster.de>
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Cc: freebsd-hackers@FreeBSD.org
Subject: Re: carriage return with stdout and stderr
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Alexander Best schrieb:
> i'm running something similar to this pseudo-code in an app of mine:
> 
> for (i=0 ....)
>     fprintf(stdout,"TEXT %d\r", int);
> 
> what's really strange is that if i print to stdout the output isn't very
> clean. the cursor jumps randomly within the output (being 1 line). if i print
> to stderr however the output looks really nice. the cursor says right at the
> front of the output all the time. just like in burncd e.g.
> 
> what's causing this? because i'd rather print to stdout.

stdout is buffered, stderr is not. Try fflush().

	Christoph