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<p style="color: #777777;">
<a href="https://gitlab.rtems.org/sebhub">Sebastian Huber</a>
<a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1484#note_158980">commented</a>:
</p>
<div class="md" style="position: relative; z-index: 1; color: #3a383f; word-wrap: break-word;">
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The direction is right. The limit belongs in the input check, and this
branch puts it there.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial"><code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">_Watchdog_Tick()</code> converts the current CLOCK_REALTIME on every tick,
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">cpukit/score/src/watchdogtick.c:128</code>:</p>
<div class="gl-relative markdown-code-block js-markdown-code">
<pre data-canonical-lang="c" class="code highlight js-syntax-highlight language-c" v-pre="true" style="display: block; font-size: 14px; color: #3a383f; line-height: 1.6em; overflow-x: auto; border-radius: .25rem; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0px 0 1rem; padding: 12px; border: 1px solid #dcdcde;"><code style="font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: .25rem; white-space: pre; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; overflow-wrap: normal; padding: unset;"><span id="LC1" class="line" data-lang="c" style="margin-top: 0px;"> <span class="n" style="margin-top: 0px;">header</span> <span class="o">=</span> <span class="o">&</span><span class="n">cpu</span><span class="o">-></span><span class="n">Watchdog</span><span class="p">.</span><span class="n">Header</span><span class="p">[</span> <span class="n">PER_CPU_WATCHDOG_REALTIME</span> <span class="p">];</span></span>
<span id="LC2" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">first</span> <span class="o">=</span> <span class="n">_Watchdog_Header_first</span><span class="p">(</span> <span class="n">header</span> <span class="p">);</span></span>
<span id="LC3" class="line" data-lang="c"></span>
<span id="LC4" class="line" data-lang="c"> <span class="k" style="margin-top: 0px;">if</span> <span class="p">(</span> <span class="n">first</span> <span class="o">!=</span> <span class="nb">NULL</span> <span class="p">)</span> <span class="p">{</span></span>
<span id="LC5" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">_Timecounter_Getnanotime</span><span class="p">(</span> <span class="o">&</span><span class="n">now</span> <span class="p">);</span></span>
<span id="LC6" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">_Watchdog_Tickle</span><span class="p">(</span></span>
<span id="LC7" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">header</span><span class="p">,</span></span>
<span id="LC8" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">first</span><span class="p">,</span></span>
<span id="LC9" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">_Watchdog_Ticks_from_timespec</span><span class="p">(</span> <span class="o">&</span><span class="n">now</span> <span class="p">),</span></span></code></pre>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial"><code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">_Watchdog_Ticks_from_timespec()</code> asserts
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">!_Watchdog_Is_far_future_timespec( ts )</code> at
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">cpukit/include/rtems/score/watchdogimpl.h:552</code>. A time of day above
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">WATCHDOG_MAX_SECONDS</code> therefore breaks every tick which follows the set.
A debug build asserts. A release build tickles the realtime collection
with a wrapped value for the rest of the run. So <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">rtems_clock_set()</code> must
reject the year, and a relaxed <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">_TOD_Set()</code> cannot repair it.</p>
<h2 dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;">psxclock</code> fails with this branch</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial"><code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">testsuites/psxtests/psxclock/init.c:354</code> demands <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">EINVAL</code> for 13569465601
seconds:</p>
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<pre data-canonical-lang="c" class="code highlight js-syntax-highlight language-c" v-pre="true" style="display: block; font-size: 14px; color: #3a383f; line-height: 1.6em; overflow-x: auto; border-radius: .25rem; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0px 0 1rem; padding: 12px; border: 1px solid #dcdcde;"><code style="font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: .25rem; white-space: pre; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; overflow-wrap: normal; padding: unset;"><span id="LC1" class="line" data-lang="c" style="margin-top: 0px;"> <span class="n" style="margin-top: 0px;">puts</span><span class="p">(</span> <span class="s">"Init: clock_settime - 2400-01-01T00:00:01Z EINVAL"</span> <span class="p">);</span></span>
<span id="LC2" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">tv</span><span class="p">.</span><span class="n">tv_sec</span> <span class="o">=</span> <span class="mi">13569465601</span><span class="p">;</span></span>
<span id="LC3" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">tv</span><span class="p">.</span><span class="n">tv_nsec</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></span>
<span id="LC4" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">errno</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></span>
<span id="LC5" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">sc</span> <span class="o">=</span> <span class="n">clock_settime</span><span class="p">(</span> <span class="n">CLOCK_REALTIME</span><span class="p">,</span> <span class="o">&</span><span class="n">tv</span> <span class="p">);</span></span>
<span id="LC6" class="line" data-lang="c"> <span class="n" style="margin-top: 0px;">rtems_test_assert</span><span class="p">(</span> <span class="n">sc</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span> <span class="p">);</span></span></code></pre>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">That value lies below the new constant. <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">clock_settime()</code> returns 0 and
the assert fails. The case above it prints
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">2400-01-01T00:00:00.999999999Z</code> and no longer sits at a boundary. Move
both cases and both messages to the new limit.</p>
<h2 dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">The two bounds still disagree</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial"><code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">_TOD_Validate()</code> stops at a year. <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">_TOD_Is_valid_new_time_of_day()</code> stops
at a second. That gap caused this defect, and the branch keeps it. The
notes of <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">rtems_clock_set()</code> name
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">2401-01-01T00:00:00.000000000Z</code> as the latest value which
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">clock_settime()</code> accepts. The check uses <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">></code>, so the true latest value is
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">2401-01-01T00:00:00.999999999Z</code>.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Close the gap in <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">cpukit/score/src/coretodcheck.c:54</code>:</p>
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<pre data-canonical-lang="c" class="code highlight js-syntax-highlight language-c" v-pre="true" style="display: block; font-size: 14px; color: #3a383f; line-height: 1.6em; overflow-x: auto; border-radius: .25rem; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0px 0 1rem; padding: 12px; border: 1px solid #dcdcde;"><code style="font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: .25rem; white-space: pre; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; overflow-wrap: normal; padding: unset;"><span id="LC1" class="line" data-lang="c" style="margin-top: 0px;"> <span class="k" style="margin-top: 0px;">if</span> <span class="p">(</span> <span class="n">tod</span><span class="o">-></span><span class="n">tv_sec</span> <span class="o">>=</span> <span class="n">TOD_SECONDS_1970_THROUGH_2400</span> <span class="p">)</span> <span class="p">{</span></span>
<span id="LC2" class="line" data-lang="c"> <span class="k" style="margin-top: 0px;">return</span> <span class="n">STATUS_INVALID_NUMBER</span><span class="p">;</span></span>
<span id="LC3" class="line" data-lang="c"> <span class="p" style="margin-top: 0px;">}</span></span></code></pre>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Both directives then stop at <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">2400-12-31T23:59:59.999999999Z</code>. The macro
name states an exact fact: a value below the constant lies within 1970
through 2400. The documentation needs one date instead of two.</p>
<h2 dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;">clock.h</code> states two different limits</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The branch updates the notes and leaves the constraint list at
<code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">cpukit/include/rtems/rtems/clock.h:151</code>:</p>
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<pre class="code highlight js-syntax-highlight language-plaintext" v-pre="true" style="display: block; font-size: 14px; color: #3a383f; line-height: 1.6em; overflow-x: auto; border-radius: .25rem; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0px 0 1rem; padding: 12px; border: 1px solid #dcdcde;"><code style="font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: .25rem; white-space: pre; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; overflow-wrap: normal; padding: unset;"><span id="LC1" class="line" data-lang="plaintext" style="margin-top: 0px;"> * - The time of day set by the directive shall be before</span>
<span id="LC2" class="line" data-lang="plaintext"> * 2100-01-01T00:00:00.000000000Z.</span></code></pre>
<copy-code></copy-code><insert-code-snippet></insert-code-snippet>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The file contradicts itself. Both places name the same instant. With the
check above:</p>
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<th style="line-height: 1.25rem; color: #18171d; margin-top: 0px; padding: 10px 16px; border-color: #dcdcde; border-style: solid; border-width: 1px 1px 0;" valign="top">Place</th>
<th style="line-height: 1.25rem; color: #18171d; padding: 10px 16px; border-color: #dcdcde; border-style: solid; border-width: 1px 1px 0;" valign="top">Text</th>
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<tbody>
<tr style="margin-top: 0px;">
<td style="line-height: 1.25rem; margin-top: 0px; padding: 10px 16px; border: 1px solid #dcdcde;" valign="top">Notes</td>
<td style="line-height: 1.25rem; padding: 10px 16px; border: 1px solid #dcdcde;" valign="top">Due to implementation constraints, the latest time of day which this directive and the POSIX <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;">clock_settime()</code> accept is 2400-12-31T23:59:59.999999999Z.</td>
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<td style="line-height: 1.25rem; margin-top: 0px; padding: 10px 16px; border: 1px solid #dcdcde;" valign="top">Constraint list</td>
<td style="line-height: 1.25rem; padding: 10px 16px; border: 1px solid #dcdcde;" valign="top">The time of day set by the directive shall be before 2401-01-01T00:00:00.000000000Z.</td>
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</table>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The new notes text also drops <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">2401-01-01:00:00.000000000Z</code>, which is no
timestamp. The branch inherited that form from the line it replaced.</p>
<h2 dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">The commit message</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The body lists the edits which the diff shows. State the problem, then the
approach. One point of the list is also wrong: <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">spclock_err02</code> holds the
leap day check of the year 2400 already, at line 132. The branch keeps
that case and replaces the year 2800 case.</p>
<h2 dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">What the branch gets right beyond the direction</h2>
<p dir="auto" style="color: #3a383f; margin: 0px;" align="initial">It drops the year 2800, 4000 and 4095 cases of <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0px; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;">spclock_err02</code>. No
directive accepts those years after the change. The value 13601088000 is
2401-01-01T00:00:00Z, and 113.4 years of uptime remain before the 34-bit
seconds field wraps.</p>
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