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From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.unix.questions
Subject: Re: Question on printf()
Message-ID: <13077@smoke.BRL.MIL>
Date: 7 Jun 90 19:56:41 GMT
References: <24674.266e3b81@kuhub.cc.ukans.edu>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 10

In article <24674.266e3b81@kuhub.cc.ukans.edu> jian@kuhub.cc.ukans.edu writes:
>that if I don't do any I/O and linefeed after printf(), the printf() does 
>not print the string argument on the standard output. Why? How can I avoid
>this problem?

Just insert the following immediately after you call printf():
	fflush(stdout);
This will force the data buffered by stdio for the stdout stream
to be sent to the output device; normally that occurs only at
each new-line.