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Date: Fri, 15 Dec 2000 17:55:08 -0200 (BRDT)
From: Rik van Riel <riel@conectiva.com.br>
To: Andrea Arcangeli <andrea@suse.de>
cc: Franz Sirl <Franz.Sirl-kernel@lauterbach.com>,
        "Richard B. Johnson" <root@chaos.analogic.com>,
        Mike Black <mblack@csihq.com>,
        "linux-kernel@vger.kernel.or" <linux-kernel@vger.kernel.org>
Subject: Re: 2.2.18 signal.h
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On Fri, 15 Dec 2000, Andrea Arcangeli wrote:

> x()
> {
> 
> 	switch (1) {
> 	case 0:
> 	case 1:
> 	case 2:
> 	case 3:
> 	;
> 	}
> }
> 
> Why am I required to put a `;' only in the last case and not in
> all the previous ones?

That `;' above is NOT in just the last one. In your above
example, all the labels will execute the same `;' statement.

In fact, the default behaviour of the switch() operation is
to fall through to the next defined label and you have to put
in an explicit `break;' if you want to prevent `case 0:' from
reaching the `;' below the `case 3:'...

regards,

Rik
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