Re: Arithmetic range error

[Paul Eggert]

Nicolas Goaziou wrote:
> I modified Org (master branch) so that it uses the list representation
> of time values in this situation.
I don't see why it's necessary to assume the list representation in 
ox-publish.el here:

  (let* ((key (org-publish-timestamp-filename filename pub-dir pub-func))
         (pstamp (pcase (org-publish-cache-get key)
                   ;; Old format, convert it back to a time value.
                   ((and stamp (pred wholenump)) (seconds-to-time stamp))
                   (stamp stamp)))

The call to seconds-to-time is not needed since the only use of pstamp is in 
(time-less-p pstamp ctime), which works just fine with integer timestamps. That 
is, you can simplify the above code to the following:

  (let* ((key (org-publish-timestamp-filename filename pub-dir pub-func))
         (pstamp (org-publish-cache-get key))

This simplification treats timestamps as reasonably-opaque objects, which is 
better since their format is subject to change.