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On Thu, Jul 26, 2007 at 04:45:55AM -0400, Min-Hua Chen wrote:
> I note that the headers of the linux source have "extern" in the function
> protoptye.
> I think the extern is not necessary because all function in C are global
> (except static functions),

Correct.

> on the other hand, adding "extern" in prototype makes the code easy to 
> read.

I disagree, adding an "extern" to a function prototype makes the line 7
characters longer, which increases the chance of breaking the function
line because it will be longer than 80 characters. That doesn't make it
easier to read in my book...

> Is there any stronger reason for adding "extern" in function prototype?

It's redundant, so don't use it.


Erik

- -- 
They're all fools. Don't worry. Darwin may be slow, but he'll
eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
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