Re: buggy_double_use_of _scanf

["Fábio Russo" <russo@bluecup.com.br>]

----- Original Message -----
From: "Glynn Clements" <glynn@gclements.plus.com>
To: "simon" <simon.guinot@laposte.net>
Cc: "linux-C-programming" <linux-c-programming@vger.kernel.org>
Sent: Tuesday, October 26, 2004 6:59 PM
Subject: Re: buggy_double_use_of _scanf


>
> simon wrote:
>
> > I have observe a strange scanf behaviour...
> > when using two successive scanf... the second receive a return character
> >
> > for example :
> >
> > int a;
> > char b;
> >
> > scanf ("%d", &a);
> > fflush (stdin);
> > scanf ("%c", &b);
> > fprintf (stdout, "a : %d\nb : %c\n", a, b);
> >
> > what's the problem ?
>
> What makes you think that there is a problem?
>
> What's the input? If it's a decimal number followed by newline, the
> first scanf() will return the parsed number, the second will return
> the newline.


The problem, I beleve is in the fflush function. I Have the same behaviour
with this source code,
but when I put a additional scanf in the line, all works fine -;)

Now I ask:
Why the fflush function did not remove the new line caracter when it should
?

it´s all folks !!!

        Russo.


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