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Subject: Re: what does __foo means.
From: Josh Boyer <jdub@us.ibm.com>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: krishna <krishna.c@globaledgesoft.com>,
       Linux Kernel <linux-kernel@vger.kernel.org>
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On Tue, 2004-12-07 at 06:54, Jan Engelhardt wrote:
> >Hi all,
> >
> >    Can anyone tell me does double underscore before a function mean?
> >    In which scenario a programmer must use it.
> 
> From the POV of a compiler, _ is like [a-z]. The programmer may use it freely.

Yes, yes, but I don't think that was the question :).

In the kernel a function that begins with __ usually denotes an internal
function for that file or subsystem.  Not always, but usually.

josh