Hello!

On Mon, Jul 09, 2018 at 07:51:47PM +0800, 洪志道 wrote:

> As shown the subject, I wonder how to check some node has been deleted from
> the red-black tree?

No such information is provided. If you need it, you should
implement it yourself or rewrite your code to avoid this
requirement. In nginx itself, code always knows if a particular
node in in the rbtree or not.

--
Maxim Dounin
http://mdounin.ru/
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