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Re: CVS commit: src/sys/coda
christos%zoulas.com@localhost (Christos Zoulas) wrote:
> On Nov 23, 11:24pm, rmind%netbsd.org@localhost (Mindaugas Rasiukevicius)
> -- Subject: Re: CVS commit: src/sys/coda
> | mp = mp == TAILQ_END(&mountlist) ? NULL : mp;
> | Over:
> | return mp;
> | Everybody understood NULL, so why obfuscate the code?
> The point (as I understand it) is so that if you want to change to another
> ADT where end != NULL (are there any now, that we have banned CIRCLEQ?)
> using the END macro lets you s/FOOQ/BARQ/ and have it mostly work.
Since 1990s (or even earlier) none of the lists in queue(3) had _END(),
apart from the circle queue (for a very obvious reason it makes sense).
Now that CIRCLEQ is banned - you added _END() for LIST and TAILQ. I do
not follow the logic. :)
I would remove _END() macros to keep the way it always was. If the goal
is to improve the interface, then now is a good time to design a new API,
but we already have a long thread on tech-userlevel for this..
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