Re: Is it safe to use the combine-after-change-calls like this?

[Zhang Haijun]

> combine-after-change-calls is ignored when before-change-functions is non-nil.

I just recognize this. It is not nil in c++-mode buffers.

> Also, regarding interaction with non-CC-mode buffers: you might be able
> to improve the efficiency of the code by executing the command of the
> various cursors starting with the one closest to point-max and finishing
> with the one closest to point-min.

I don’t understand this well. I see that when iedit-mode is on, it calls 
after-change-functions on change around every active cursors for every char 
inputing.