Date: Tue, 20 Oct 2009 15:20:50 -0700 From: Gary Kline <kline@thought.org> To: Polytropon <freebsd@edvax.de> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org>, Patrick Mahan <mahan@mahan.org> Subject: Re: need C help, passing char buffer[] by-value.... Message-ID: <20091020222049.GB17456@thought.org> In-Reply-To: <20091020054241.ce4a38fe.freebsd@edvax.de> References: <20091019013337.GA9522@thought.org> <4ADBFDBA.6040702@pchotshots.com> <20091019170634.GA12371@thought.org> <4ADCAB4F.5040707@mahan.org> <20091020054241.ce4a38fe.freebsd@edvax.de>
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On Tue, Oct 20, 2009 at 05:42:41AM +0200, Polytropon wrote:
> Just a little and quite formal side note:
>
> On Mon, 19 Oct 2009 11:09:19 -0700, Patrick Mahan <mahan@mahan.org> wrote:
> > while (*tp != '\0' && *tp++ != '<');
>
> It's often a good choice, especially for increasing readability
> of code, to code the "empty statement" on a line on its own (as
> you usually put any statements on an own line for clarity), so
> the reader doesn't accidentally take it as and "end of command"
> notification, e. g.
>
> while(1)
> ;
>
> instead of
>
> while(1);
>
> which could be confused with the syntactical meaning of
>
> whatsthis(1);
>
> I'm just mentioning this because I saw this in a programming
> project when I was at university. A young programmer who was
> given the task to look at code a very skilled programmer gave
> him. Somewhere in the code, an endless loop caused the program
> not to work properly. The student could not find this endless
> loop because it was coded in the manner as given above. It was
> not the polite form of for(;;); :-)
yeah; i already fixed this in the pointer version that patrick suggested.
that's the one nice thing about perl; you gotta use braces even for a single
clause.
if foo
{
}
while bar
{
}
can't get away with while ();
:-)
gary
>
>
>
>
> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
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--
Gary Kline kline@thought.org http://www.thought.org Public Service Unix
http://jottings.thought.org http://transfinite.thought.org
The 7.31a release of Jottings: http://jottings.thought.org/index.php
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