From: "Michael Kerrisk (man-pages)" <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Paul Eggert <eggert-764C0pRuGfqVc3sceRu5cw@public.gmane.org>,
Zack Weinberg <zackw-VmQCmMdMyN0AvxtiuMwx3w@public.gmane.org>
Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
"H.J. Lu" <hjl.tools-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Andreas Schwab <schwab-l3A5Bk7waGM@public.gmane.org>,
libc-alpha <libc-alpha-9JcytcrH/bA+uJoB2kUjGw@public.gmane.org>,
linux-man <linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
Subject: Re: The time(2) man page conflicts with glibc
Date: Thu, 17 Dec 2015 06:53:17 +0100 [thread overview]
Message-ID: <56724DCD.8050809@gmail.com> (raw)
In-Reply-To: <5671EE36.1000402-764C0pRuGfqVc3sceRu5cw@public.gmane.org>
Hello Paul,
On 12/17/2015 12:05 AM, Paul Eggert wrote:
> Zack Weinberg wrote:
>> When `t` is NULL, the call cannot fail.
>
> This doesn't make it clear what happens when the time_t values roll around after
> the year 2038, on 32-bit time_t hosts. How about adding some further text along
> the following lines?
>
> In GNU/Linux time(NULL) cannot fail with errno == EOVERFLOW, even on ABIs where
> time_t is a signed 32-bit integer and when the clock ticks past the time 2**31
> (2038-01-19 03:14:08 UTC, ignoring leap seconds). Instead, the behavior is
> undefined when the system time is out of time_t range. Applications intended to
> run after 2038 should use ABIs with time_t wider than 32 bits.
> .
Seems reasonable. I've added something close that. Thanks!
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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prev parent reply other threads:[~2015-12-17 5:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 13:58 The time(2) man page conflicts with glibc H.J. Lu
2015-12-15 14:14 ` Zack Weinberg
[not found] ` <CAKCAbMj-X+wLKX3=MDm9z3L9zyikemxCNggu2bfw6=o6K5PGgg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-15 14:31 ` Andreas Schwab
2015-12-15 14:55 ` Mike Frysinger
[not found] ` <20151215145517.GR11489-UgUKS2FnFs9+urZeOPWqwQ@public.gmane.org>
2015-12-15 15:19 ` Zack Weinberg
[not found] ` <CAKCAbMh2ysZPQe3oOSjcPsx1_pcnCAQ6yf+gMbv6iDmvfnGXZA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-15 18:38 ` Mike Frysinger
2015-12-16 7:08 ` Rich Felker
[not found] ` <20151216070839.GE238-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-12-16 20:34 ` Mike Frysinger
[not found] ` <20151216203432.GR11489-UgUKS2FnFs9+urZeOPWqwQ@public.gmane.org>
2015-12-16 21:59 ` Rich Felker
[not found] ` <20151216215955.GJ238-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-12-16 22:27 ` Zack Weinberg
2015-12-16 22:44 ` Rich Felker
[not found] ` <20151216224432.GK238-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-12-16 22:51 ` Zack Weinberg
2015-12-17 3:15 ` Mike Frysinger
[not found] ` <CAMe9rOoJLk8VzyJKmkOvbmBxhCj4mVA2huYtHJsdxpatbkgJ1g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-15 14:16 ` Andreas Schwab
[not found] ` <mvmegen94qs.fsf-8jEJWzg51KSXcDkGTvBoYw@public.gmane.org>
2015-12-15 14:17 ` H.J. Lu
2015-12-16 13:38 ` Michael Kerrisk (man-pages)
[not found] ` <5671696B.3070203-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-12-16 13:53 ` H.J. Lu
[not found] ` <CAMe9rOqsxCEia7OWqzJ-HzZWCra5BTyYqt4japjZTw0pY=fugw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-16 14:07 ` Michael Kerrisk (man-pages)
[not found] ` <56717032.7000007-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-12-16 14:50 ` Zack Weinberg
[not found] ` <CAKCAbMjrKfsT7P=Q=+1zWC68552aK=ciod0HYk3=HWMvkYW26w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-16 15:04 ` Michael Kerrisk (man-pages)
2015-12-16 23:05 ` Paul Eggert
[not found] ` <5671EE36.1000402-764C0pRuGfqVc3sceRu5cw@public.gmane.org>
2015-12-17 5:53 ` Michael Kerrisk (man-pages) [this message]
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