Date: Mon, 5 Apr 1999 17:26:22 -0400
Message-Id: <199904052126.RAA09813@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <37090A8C.89F098AA@cityweb.de> (message from David Renz on Mon,
	05 Apr 1999 21:10:04 +0200)
Subject: Re: DJGPP-Problem
References: <37026DF6 DOT BCAA8E59 AT cityweb DOT de> <Pine DOT HPP DOT 3 DOT 95 DOT 990401074240 DOT 16475A-100000 AT hepo DOT cc DOT lut DOT fi> <37090A8C DOT 89F098AA AT cityweb DOT de>
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You have two problems.

1. fflush(stdin) does absolutely nothing in DJGPP (nor should it).
   Using gets() is the right thing to do there.

2. The *first* scanf doesn't read the whole line - it leaves a bit
   behind, which is read as the first line in your loop.  I recommend
   doing something like this:

	char buf[100];
	fgets(buf, 100, stdin);
	sscanf(buf, "%d", &z);

Don't use gets because it has no way of stopping you from overflowing
your buffer.

> >> ...
> >> scanf ("%d", &z);
> >> 
> >> printf ("Text:\n");
> >> 
> >> for (i=0;i<z;++i)
> >> 
> >> {
> >> 
> >> fflush(stdin);  /* i quess here's your problem */
> >> 
> >> gets(text[i]);
> >> 
> >> l[i]=strlen(text[i]);
> >> 
> >> }
> >> ...
> >> When I compile it with DJGPP and it should read n(z=n) Lines it only
> >> reads n-1 lines. But when I compile it
> >> with TurboC it runs correctly. Does someone know where there is a bug?
> > 
> > As i recall, you can't fflush _stdin_ stream, only _stdout_ stream. This
> > may cause your problem and irregularities between those two compilers you
> > used.
> > 
> No, that can't be the problem, when I leave out the fflush(stdin), it's
> still wrong.
> But when I replace the gets(text[i]) by scanf(text[i]) it runs
> correctly. But with 
> scanf you can only read words but no sentences(several words with
> blanks). Can someone help?