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<h1>libc++ Upcoming Meeting Status</h1>
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<p>This is a temporary page; please check the c++1z status <a href="cxx1z_status.html">here</a></p>
<p>This page shows the status of the papers and issues that are expected to be adopted in the next WG21 Meeting.</p>
<p>The groups that have contributed papers:
<ul>
<li>LWG - Library working group</li>
<li>CWG - Core Language Working group</li>
<li>SG1 - Study group #1 (Concurrency working group)</li>
</ul>
</p>
<h3>Paper Status</h3>
<table id="papers" border="1">
<tr><th>Paper #</th><th>Group</th><th>Paper Name</th><th>Meeting</th><th>Status</th><th>First released version</th></tr>
<!--
<tr><td><a href="https://wg21.link/LWGn3346">3346</a></td><td>LWG</td><td>Terminology for Container Element Requirements - Rev 1</td><td>Kona</td><td>Complete</td><td>3.4</td></tr>
-->
<!-- <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr> -->
</table>
<h3>Library Working group Issues Status</h3>
<table id="issues" border="1">
<tr><th>Issue #</th><th>Issue Name</th><th>Meeting</th><th>Status</th></tr>
<tr><td><a href="https://wg21.link/LWG2164">2164</a></td><td>What are the semantics of <tt>vector.emplace(vector.begin(), vector.back())</tt>?</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2243">2243</a></td><td><tt>istream::putback</tt> problem</td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG2816">2816</a></td><td><tt>resize_file</tt> has impossible postcondition</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG2843">2843</a></td><td>Unclear behavior of <tt>std::pmr::memory_resource::do_allocate()</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2849">2849</a></td><td>Why does <tt>!is_regular_file(from)</tt> cause <tt>copy_file</tt> to report a "file already exists" error?</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG2851">2851</a></td><td><tt>std::filesystem</tt> enum classes are now underspecified</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG2969">2969</a></td><td><tt>polymorphic_allocator::construct()</tt> shouldn't pass <tt>resource()</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2975">2975</a></td><td>Missing case for <tt>pair</tt> construction in scoped and polymorphic allocators</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2989">2989</a></td><td><tt>path</tt>'s stream insertion operator lets you insert everything under the sun</td><td>Jacksonville</td><td>Completed</td></tr>
<tr><td><a href="https://wg21.link/LWG3000">3000</a></td><td><tt>monotonic_memory_resource::do_is_equal</tt> uses <tt>dynamic_cast</tt> unnecessarily</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3002">3002</a></td><td>[networking.ts] <tt>basic_socket_acceptor::is_open()</tt> isn't <tt>noexcept</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3004">3004</a></td><td>§[string.capacity] and §[vector.capacity] should specify time complexity for <tt>capacity()</tt></td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3005">3005</a></td><td>Destruction order of arrays by <tt>make_shared/allocate_shared</tt> only recommended?</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3007">3007</a></td><td><tt>allocate_shared</tt> should rebind allocator to <i>cv</i>-unqualified <tt>value_type</tt> for construction</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3009">3009</a></td><td>Including <tt><string_view></tt> doesn't provide <tt>std::size/empty/data</tt></td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG3010">3010</a></td><td>[networking.ts] <tt>uses_executor</tt> says "if a type <tt>T::executor_type</tt> exists"</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3013">3013</a></td><td><tt>(recursive_)directory_iterator</tt> construction and traversal should not be <tt>noexcept</tt></td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG3014">3014</a></td><td>More <tt>noexcept</tt> issues with filesystem operations</td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG3015">3015</a></td><td><tt>copy_options::<i>unspecified</i></tt> underspecified</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3017">3017</a></td><td><tt>list splice</tt> functions should use <tt>addressof</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3020">3020</a></td><td>[networking.ts] Remove spurious nested <tt>value_type</tt> buffer sequence requirement</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3026">3026</a></td><td><tt>filesystem::weakly_canonical</tt> still defined in terms of <tt>canonical(p, base)</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3030">3030</a></td><td>Who shall meet the requirements of <tt>try_lock</tt>?</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3034">3034</a></td><td>P0767R1 breaks previously-standard-layout types</td><td>Jacksonville</td><td><i>Patch Ready</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3035">3035</a></td><td><tt>std::allocator</tt>'s constructors should be <tt>constexpr</tt></td><td>Jacksonville</td><td><i>Patch Ready</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3039">3039</a></td><td>Unnecessary <tt>decay</tt> in <tt>thread</tt> and <tt>packaged_task</tt></td><td>Jacksonville</td><td><i>Patch Ready</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3041">3041</a></td><td>Unnecessary <tt>decay</tt> in <tt>reference_wrapper</tt></td><td>Jacksonville</td><td><i>Patch Ready</i></td></tr>
<tr><td><a href="https://wg21.link/LWG3042">3042</a></td><td><tt>is_literal_type_v</tt> should be inline</td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG3043">3043</a></td><td>Bogus postcondition for <tt>filesystem_error</tt> constructor</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3045">3045</a></td><td><tt>atomic<<i>floating-point</i>></tt> doesn't have <tt>value_type</tt> or <tt>difference_type</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3048">3048</a></td><td><tt>transform_reduce(exec, first1, last1, first2, init)</tt> discards execution policy</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG3051">3051</a></td><td><tt>Floating point classifications were inadvertently changed in P0175</td><td>Jacksonville</td><td><i>Nothing to do</i></td></tr>
</table>
<h3>Issues to "Review"</h3>
<table border="1">
<tr><th>Issue #</th><th>Issue Name</th><th>Meeting</th><th>Status</th></tr>
<tr><td><a href="https://wg21.link/LWG2412">2412</a></td><td><tt>promise::set_value()</tt> and <tt>promise::get_future()</tt> should not race</td><td>Jacksonville</td><td>Complete</td></tr>
<tr><td><a href="https://wg21.link/LWG2682">2682</a></td><td><code>filesystem::copy()</code> won't create a symlink to a directory</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2697">2697</a></td><td>[concurr.ts] Behavior of <tt>future/shared_future</tt> unwrapping constructor when given an invalid <tt>future</tt></td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2708">2708</a></td><td><tt>recursive_directory_iterator::recursion_pending()</tt> is incorrectly specified</td><td>Jacksonville</td><td></td></tr>
<tr><td><a href="https://wg21.link/LWG2936">2936</a></td><td>Path comparison is defined in terms of the generic format</td><td>Jacksonville</td><td></td></tr>
</table>
<h3>Comments about the issues</h3>
<ul>
<li> 2164 - Writing tests here will be fun.</li>
<li> 2243 - We already do this.</li>
<li> 2816 - Wording changes only</li>
<li> 2843 - We don't have PMRs yet</li>
<li> 2849 - We already report different errors. </li>
<li> 2851 - Wording changes only</li>
<li> 2969 - We don't have PMRs yet</li>
<li> 2975 - We can do the scoped_ bit, but the PMR stuff will have to wait.</li>
<li> 2989 - Proposed changes LGTM </li>
<li> 3000 - We don't have PMRs yet</li>
<li> 3002 - No networking TS implementation yet</li>
<li> 3004 - Wording changes only</li>
<li> 3005 - We don't have shared_ptr support for arrays yet</li>
<li> 3007 - <i>Looks easy</i></li>
<li> 3009 - We do this already; tests added in r323719</li>
<li> 3010 - No networking TS implementation yet</li>
<li> 3013 - We already implement this</li>
<li> 3014 - We implement this</li>
<li> 3015 - Wording changes only</li>
<li> 3017 - We don't do the splicing stuff yet</li>
<li> 3020 - No networking TS implementation yet</li>
<li> 3026 - I think this is just wording cleanup - Eric?</li>
<li> 3030 - Wording changes only</li>
<li> 3034 - <i>Patch Ready</i></li>
<li> 3035 - <i>Patch Ready</i></li>
<li> 3039 - <i>Patch Ready</i></li>
<li> 3041 - <i>Patch Ready</i></li>
<li> 3042 - We already do this.</li>
<li> 3043 - We have a 'TODO(ericwf)' here</li>
<li> 3045 - We haven't done the <atomic> rework yet.</li>
<li> 3048 - We haven't done the parallel algorithms yet.</li>
<li> 3051 - Fixing an inadvertent wording change</li>
</ul>
<h3>Comments about the "Review" issues</h3>
<ul>
<li> 2412 - I think we do this already</li>
<li> 2682 - Eric - don't we do this already? </li>
<li> 2697 - No concurrency TS implementation yet</li>
<li> 2708 - Eric? </li>
<li> 2936 - Eric - don't we do this already?</li>
</ul>
<p>Last Updated: 7-Feb-2018</p>
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