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On Jan 21, 2004, at 2:45 PM, Jonathan Stone wrote:

> Hey, nonsense, yourself. Andrew's constructors are variadic.
> That means we just plain _cannot_ write generic macros that pass some
> of their arguments into sysctl constructors, in the way that FreeBSD
> does: the number of arguments in the macro-expansion has to vary,
> and C macros just can't do that.

I think you missed my point.

Go to src/sys/kern and grep for SYSCTL_SETUP.  Those are the 
constructors to which I referred, and they are inserted into a link set 
that is run down at the appropriate time.  Those constructors in turn 
call the variadic function that actually sets up the sysctl var.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>


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