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<title>Issue 3224: zoned_time constructor from TimeZonePtr does not specify initialization of
tp_</title>
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tp_">
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<p><em>This page is a snapshot from the LWG issues list, see the <a href="lwg-active.html">Library Active Issues List</a> for more information and the meaning of <a href="lwg-active.html#C++20">C++20</a> status.</em></p>
<h3 id="3224"><a href="lwg-defects.html#3224">3224</a>. <code>zoned_time</code> constructor from <code>TimeZonePtr</code> does not specify initialization of
<code>tp_</code></h3>
<p><b>Section:</b> 30.11.7.2 <a href="https://wg21.link/time.zone.zonedtime.ctor">[time.zone.zonedtime.ctor]</a> <b>Status:</b> <a href="lwg-active.html#C++20">C++20</a>
 <b>Submitter:</b> Tomasz Kami&nacute;ski <b>Opened:</b> 2019-06-20 <b>Last modified:</b> 2021-02-25</p>
<p><b>Priority: </b>0
</p>
<p><b>View all other</b> <a href="lwg-index.html#time.zone.zonedtime.ctor">issues</a> in [time.zone.zonedtime.ctor].</p>
<p><b>View all issues with</b> <a href="lwg-status.html#C++20">C++20</a> status.</p>
<p><b>Discussion:</b></p>
<p>
The <code>zoned_time(TimeZonePtr z)</code> does not specify how the <code>tp_</code>
sub-element is initialized. It should be consistent with <code>zoned_time(string_view)</code>
that default initializes <code>tp_</code>.
</p>

<p><i>[2019-07 Issue Prioritization]</i></p>

<p>Status to Tentatively Ready after five positive votes on the reflector.</p>


<p id="res-3224"><b>Proposed resolution:</b></p>
<p>This wording is relative to <a href="https://wg21.link/n4820">N4820</a>.</p>

<ol>
<li><p>Modify 30.11.7.2 <a href="https://wg21.link/time.zone.zonedtime.ctor">[time.zone.zonedtime.ctor]</a> as indicated:</p>

<blockquote>
<pre>
explicit zoned_time(TimeZonePtr z);
</pre>
<blockquote>
<p>
-5- <i>Requires:</i> <code>z</code> refers to a time zone.
<p/>
-6- <i>Effects:</i> Constructs a <code>zoned_time</code> by initializing <code>zone_</code> with <code>std::move(z)</code>
<ins>and default constructing <code>tp_</code></ins>.
</p>
</blockquote>
</blockquote>
</li>
</ol>




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