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| From: | Stefan Monnier |
| Subject: | Re: Can we make set_point_both less expensive? |
| Date: | Sat, 21 Mar 2015 18:14:32 -0400 |
| User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
> good enough job. The position of point/cursor shown to the user is
> known _at_the_end_ of redisplay, not at its beginning. the latter can
> approximate the former, but only approximate.
It's known well enough in pre-redisplay-function that we can use this
information to setup an overlay to highlight the region. And we haven't
had bug-reports yet about this "approximation" being imprecise (tho
I admittedly fixed just such a bug between 24.4 and 25.1).
Stefan
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