bug#644: diary-anniversary to optionally show "negative" anniversaries for future events

[Lars Ingebrigtsen <larsi@gnus.org>]

weg@indiscrete.org (Eythan Weg) writes:

> Makes sense.  I have not noticed my error because
> normally I know the start year.  My error stemmed
> from using the menu to insert an anniversary while
> the cursor in the calendar buffer is on the
> correct day and month of the current year (the
> current year because the correct year was not
> known, a common occurrence in regard to age).
>
> Would it be wrong to allow future birth days in
> diary-anniversary, so past and future are
> symmetric?

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I'm not sure I understand the problem here.  As far as I can tell, it's
fine to insert a future birthday.  I tried:

%%(diary-anniversary 12 14 2021) X's Birthday 

And then the 14th of December 2022 had that date marked.  (We're not
marking the 0th anniversary.)

But I may be misunderstanding what this report is about.  Do you have a
recipe, starting from "emacs -Q", that demonstrates the problem?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no