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Re: [Emacs-diffs] master dfed333: Remove fixnum restriction on some disp
Re: [Emacs-diffs] master dfed333: Remove fixnum restriction on some display vars
Fri, 24 May 2019 13:13:14 -0700
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On 5/24/19 7:32 AM, Stefan Monnier wrote:
My comment was specifically about buffer-display-count (which counts
a number of distinct heap objects).
Actually it counts the number of times a buffer has been displayed in
Plus, if I execute (setq buffer-display-count most-positive-fixnum) and
then display the buffer in a new window, I wouldn't want Emacs to crash
(or to convey the existence of a supernatural power :-) simply because
the counter was incremented.
While we're on the topic, how about if we deprecate/obsolete
buffer-display-count? As far as I can tell it's never been used in
Emacs, and is not used elsewhere. It was introduced in 1997 and was
superseded in 1998 by buffer-display-time, and the rare code that
worries about whether a buffer has been displayed
(ibuffer-mark-old-buffers, clean-buffer-list) uses the newer variable.