Messages in this thread | | | Subject | Re: what does __foo means. | From | Josh Boyer <> | Date | Tue, 07 Dec 2004 07:08:39 -0600 |
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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
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