From:	"Mr. Lin" <loy AT tm DOT net DOT my>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: printf/getch problem
Date:	Mon, 26 Jan 1998 22:25:54 +0800
Organization:	TMnet Malaysia
Lines:	35
Message-ID:	<6ai65c$m0l$1@news.tm.net.my>
References:	<34cc2c99 DOT 1842074 AT news DOT telusplanet DOT net>
NNTP-Posting-Host:	tsk-35-245.tm.net.my
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

tg wrote in message <34cc2c99 DOT 1842074 AT news DOT telusplanet DOT net>...
>   Whenever I have a  printf before a getch, it waits until a key is
>pressed before printing the string. However, if the string ends with a
>\n it works fine.
>
>e.g  printf("blah");
>        getch();
>
>will wait for a key to be pressed and then print "blah". If I replace
>it with "blah\n" it works.
>
>  Is this supposed to happen and if so how do I get around it? I've
>tried the same thing with a borland compiler and it works as expected.
>

The output in your printf statement was actually buffered (In DJGPP)
When you use a new line '\n' , the buffer was actually flushed. If no new
line character was used , the output is buffered while getch() was executed.
To force a flush (if you don't want to use '\n') , use fflush(stdout)

Hence ,

printf("blah");
fflush(stdout);
getch();


Should work.

Regards,
Kean

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