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Groups > comp.lang.c > #396637
| From | Kaz Kylheku <046-301-5902@kylheku.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: printf and time_t |
| Date | 2026-02-07 17:55 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <20260207093737.331@kylheku.com> (permalink) |
| References | (24 earlier) <10m0b0g$2l6li$1@dont-email.me> <10m1vl7$35irp$1@dont-email.me> <10m2kpb$3cm2p$1@dont-email.me> <10m374q$2d053$1@dont-email.me> <10m39sd$3ladr$1@dont-email.me> |
On 2026-02-05, Bart <bc@freeuk.com> wrote:
> On 05/02/2026 22:55, Janis Papanagnou wrote:
>> On 2026-02-05 18:42, Bart wrote:
>>> On 05/02/2026 11:41, David Brown wrote:
>>>>
>>>> No, the /compiler/ has to work it out. Whether /you/ need to work it
>>>> out or not, depends on what you are doing with the result.
>>>
>>> The compiler will not tell you the format codes to use!
>>
>> Well, it seems the compiler I have here does it quite verbosely...
>>
>>
>> $ cc -o prtfmt prtfmt.c
>> prtfmt.c: In function ‘main’:
>> prtfmt.c:8:19: warning: format ‘%d’ expects argument of type ‘int’, but
>> argument 2 has type ‘double’ [-Wformat=]
>> 8 | printf ("%d\n", f);
>> | ~^ ~
>> | | |
>> | int double
>> | %f
>> prtfmt.c:9:19: warning: format ‘%f’ expects argument of type ‘double’,
>> but argument 2 has type ‘int’ [-Wformat=]
>> 9 | printf ("%f\n", i);
>> | ~^ ~
>> | | |
>> | | int
>> | double
>> | %d
>>
>>
>> ...giving information of every kind - here for two basic types, but
>> it has also the same verbose diagnostics with the '_t' types I tried
>> (e.g. suggesting '%ld' for a 'time_t' argument).
>>
>> Note: I'm still acknowledging the unfortunate type/formatter-coupling
>> notwithstanding.
>
> /Some/ compilers with /some/ options will /sometimes/ tell you when
> you've got it wrong.
That's an excellent reason to keep the bulk of your code portable, and
offer it to multiple compilers.
I think the only way you are going to run into a crappy compiler in a
real job situation in 2026 is if you're an embedded developer working
with some very proprietary processor for which the only compiler comes
from its vendor. Even so the bits of your code not specific to that
chip can be compiled with something else. Which you want to do not just
for diagnostics but to be able to run unit tests on that code on a
regular developer machine.
> Eventually, it will compile. Until someone else builds your program,
> using a slightly different set of headers where certain types are
> defined, and then it might either give compiler messages that they have
> to fix, or it show wrong results.
>
> If I compile this code with 'gcc -Wall -Wextra -Wpedantic':
>
> #include <stdio.h>
>
> int main() {
> int a = -1;
> printf("%u", a);
> }
>
> it says nothing. The program displays 4294967295 instead of -1.
For that you need this:
$ gcc -Wall -pedantic -W -Wformat -Wformat-signedness printf.c
printf.c: In function ‘main’:
printf.c:5:12: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 2 has type ‘int’ [-Wformat=]
printf("%u", a);
~^
%u
There is probably a good reason for that; passing a signed argument
to an unsigned conversion specifier de facto works fine, and
some code relies on it; i.e. the 4294967295 is what the programmer
wanted.
You often see that with %x, which also takes unsigned int;
the programmer wants -16 to come out as "FFFFFFF0", and not -10.
Someone with code like that might want to catch other problems with
printf calls, and not be bothered with those.
> If compile this version (using %v) using a special extension:
>
> #include <stdio.h>
>
> int main() {
> int a = -1;
> printf("%v", a);
> }
>
> it shows -1. Which is better?
Both are undefined behavior. The latter is a documented extension
that works where it works, which is good.
Using %u with int /de facto/ works (and could also be a documented
extension).
/de facto/ is weaker than documented. But on the other hand, /de facto/
works in more places than %v.
If you hit a library that doesn't have %v, it doesn't work at all.
I've never seen int passed to %d or %x not work in the manner you
would expect if int and unsigned int arguments were passed in
exactly the same way and subject to a reinterpretation of the bits.
--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca
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printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 07:19 +0000
Re: printf and time_t Andrey Tarasevich <noone@noone.net> - 2026-01-05 00:17 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-05 10:51 +0200
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 12:45 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-05 15:21 +0200
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 13:49 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-05 16:47 +0200
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 15:29 +0000
Re: printf and time_t bart <bc@freeuk.com> - 2026-01-05 13:22 +0000
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 13:52 +0000
Re: printf and time_t Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-06 00:27 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-06 11:29 +0200
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-06 10:31 -0500
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-06 20:05 +0200
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-01-06 18:16 +0000
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-07 05:06 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-07 13:08 -0500
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-08 09:54 -0800
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-08 10:08 -0800
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-01-08 18:36 +0000
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-08 13:05 -0800
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-01-09 16:26 +0000
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-03 05:38 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-10 22:40 -0500
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-06 16:29 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-06 17:14 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-07 14:01 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-07 04:28 -0800
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-03 22:03 -0800
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-01-07 15:45 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-07 13:28 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-08 01:26 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-07 16:00 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-08 02:38 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-07 17:36 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-08 11:01 +0200
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-08 19:31 -0500
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-09 14:18 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-09 13:49 +0100
Re: printf and time_t wij <wyniijj5@gmail.com> - 2026-01-10 00:17 +0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-09 11:27 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-10 22:02 -0500
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-11 13:20 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-11 04:59 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-11 15:32 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-11 16:34 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-11 18:19 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-11 20:25 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-11 15:23 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-12 10:50 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-11 14:56 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-11 22:44 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-12 10:51 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-12 08:21 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-12 11:06 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-12 13:26 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-12 16:06 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-13 08:56 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-13 00:53 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-13 11:09 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-13 13:45 +0200
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-13 14:32 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-13 17:47 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-12 04:27 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-12 17:57 +0100
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-03 17:19 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-03 18:19 -0800
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-03-01 21:05 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-13 21:24 -0500
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-14 09:26 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-14 14:53 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-15 08:29 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-14 11:03 +0200
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-14 22:19 -0500
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-15 11:02 +0200
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-11 11:58 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-12 08:28 +0100
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-11 11:51 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-11 23:51 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-11 22:47 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-12 08:34 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-12 11:24 +0200
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-12 10:34 +0200
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-03 07:47 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-03 19:51 +0000
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-04 06:22 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-04 16:44 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-04 18:12 +0100
Re: printf and time_t Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-02-04 18:48 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-04 18:11 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-04 21:09 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-04 20:42 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-05 12:41 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-05 17:42 +0000
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-02-05 18:38 +0000
Re: printf and time_t Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-02-05 23:55 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-05 23:42 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-05 21:10 -0800
Re: printf and time_t Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-02-06 09:51 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-06 04:46 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 12:39 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-02-06 14:47 +0200
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 13:04 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-02-08 10:52 +0200
Re: printf and time_t Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-02-08 12:18 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-08 04:03 -0800
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-08 16:50 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-08 18:55 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-08 19:54 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-08 21:27 +0100
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-08 19:59 +0000
Re: printf and time_t Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-02-08 21:51 +0100
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-08 19:43 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-06 14:06 +0100
Re: printf and time_t Kaz Kylheku <046-301-5902@kylheku.com> - 2026-02-07 18:07 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-07 20:32 +0000
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-07 22:48 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-07 23:54 +0000
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-08 19:21 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-08 23:35 +0000
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-09 01:27 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-10 00:14 +0000
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-10 13:22 +0000
Re: printf and time_t antispam@fricas.org (Waldek Hebisch) - 2026-02-09 01:40 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-06 05:08 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 14:28 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 14:29 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-06 11:21 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 20:08 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-06 12:56 -0800
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-02-06 14:35 +0000
Re: printf and time_t Kaz Kylheku <046-301-5902@kylheku.com> - 2026-02-07 17:55 +0000
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-07 20:51 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-06 12:27 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-05 11:05 -0800
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-06 02:59 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-06 04:49 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-06 13:05 +0000
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-17 23:11 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-06 12:42 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-02-04 22:48 +0200
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-02-04 22:57 +0200
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-04 23:24 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-04 16:04 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-04 15:39 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-04 23:52 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-05 12:51 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-05 11:22 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-02-06 12:46 +0100
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-02-06 02:25 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-03 14:43 -0800
Re: printf and time_t Bart <bc@freeuk.com> - 2026-02-03 23:06 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-02-03 15:33 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-13 22:17 -0500
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-14 11:10 +0200
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-15 06:10 -0500
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-15 04:00 -0800
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-15 20:08 -0500
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-15 18:17 -0800
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-09 09:25 +0100
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-08 11:35 +0100
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-06 19:44 -0500
Re: printf and time_t bart <bc@freeuk.com> - 2026-01-07 01:14 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-07 13:41 +0200
Re: printf and time_t bart <bc@freeuk.com> - 2026-01-07 15:54 +0000
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-07 18:17 +0200
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-07 12:45 -0500
Re: printf and time_t Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-07 20:31 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-07 13:32 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-08 01:29 +0200
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-08 19:16 -0500
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-08 17:13 +0100
Re: printf and time_t Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-01-05 16:23 +0000
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 16:34 +0000
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-05 17:34 +0100
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-05 13:11 -0500
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-05 19:28 +0100
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-05 14:00 -0500
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-05 20:38 +0100
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-05 14:41 -0800
Epoch seconds and linear count (was Re: printf and time_t) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2026-01-06 14:51 +0100
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-05 19:23 +0200
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-05 15:04 -0800
Re: printf and time_t Michael S <already5chosen@yahoo.com> - 2026-01-06 01:23 +0200
Re: printf and time_t Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-06 00:22 +0000
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-06 10:22 -0500
Re: printf and time_t Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-01-06 15:45 +0000
Re: printf and time_t Michael Bäuerle <michael.baeuerle@gmx.net> - 2026-01-06 17:00 +0100
Re: printf and time_t Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-01-06 16:08 +0000
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-06 11:19 -0500
Re: printf and time_t Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-01-06 16:18 +0000
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-05 13:14 -0500
Re: printf and time_t David Brown <david.brown@hesbynett.no> - 2026-01-05 11:32 +0100
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-05 07:37 -0500
Re: printf and time_t Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-06 00:30 +0000
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-05 20:00 -0800
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-01-05 07:50 -0500
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-07 05:02 -0800
Re: printf and time_t "James Russell Kuyper Jr." <jameskuyper@alumni.caltech.edu> - 2026-01-07 12:58 -0500
Re: printf and time_t Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-03-01 23:21 -0800
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-03-02 03:37 -0800
Re: printf and time_t James Kuyper <jameskuyper@alumni.caltech.edu> - 2026-03-02 17:53 -0500
Re: printf and time_t Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-03-02 18:04 -0800
Re: printf and time_t Michael Sanders <porkchop@invalid.foo> - 2026-01-05 08:32 +0000
Re: printf and time_t Michael Sanders <porkchop@invalid.foo> - 2026-01-05 08:46 +0000
Re: printf and time_t highcrew <high.crew3868@fastmail.com> - 2026-01-05 12:48 +0100
Re: printf and time_t richard@cogsci.ed.ac.uk (Richard Tobin) - 2026-01-05 14:53 +0000
Re: printf and time_t gazelle@shell.xmission.com (Kenny McCormack) - 2026-01-05 15:36 +0000
Re: printf and time_t scott@slp53.sl.home (Scott Lurndal) - 2026-01-05 15:57 +0000
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