On Thu, 23 Apr 2020 04:21:42 +0200, Ingo Schwarze wrote:
> Calling timelocal(3) deprecated makes sense to me because it is
> nothing but a trivial wrapper around mktime(3), and the latter
> is standardized, while timelocal(3) is not.
>
> But i don't quite see why timegm(3) should be marked as deprecated:
> sure it was never standardized, but i don't see a better portable
> way to achieve the same.
>
> Consequently, i suggest dropping millert's deprecation notice
> from timegm(3) and instead adding the missing STANDARDS and
> HISTORY sections.
That's fine with me. Those interfaces appeared in SunOS 4.0 according
to tzcode (which is where we got them from). They did *not* originate
in NetBSD. I've verified that they were present in SunOS 4.1.3U1,
though that code appears to be derived from tzcode too.
I would suggest that the HISTORY section be updated accordingly if
you feel the need to document their origin.
If you look at the 4.4BSD ctime.c you'll see that Keith actually
removed timegm() after updating it from tzcode.
D 5.16 89/03/16 20:34:41 bostic 22 21
remove offtime, timegm, timeoff
D 5.15 89/03/12 16:32:29 bostic 21 20
latest Olson/Harris time package
The reason they were marked as deprecated is that tzcode has a
comment that "These functions may well disappear in future releases
of the time conversion package". However, that hasn't happened in
at least 30 years so it seems likely that they are here to stay...
Note that we also provide timeoff() but don't document it.
- todd
