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34 <!--*********************************************************************-->
35 <h1>libc++ C++1z Status</h1>
36 <!--*********************************************************************-->
37
38 <p>In November 2014, the C++ standard committee created a draft for the next version of the C++ standard, known here as "C++1z" (probably to be C++17)</p>
39 <p>This page shows the status of libc++; the status of clang's support of the language features is <a href="http://clang.llvm.org/cxx_status.html#cxx17">here</a>.</p>
40
41 <p>The groups that have contributed papers:
42 <ul>
43 <li>LWG - Library working group</li>
44 <li>CWG - Core Language Working group</li>
45 <li>SG1 - Study group #1 (Concurrency working group)</li>
46 </ul>
47 </p>
48
49 <h3>Paper Status</h3>
50 <table id="papers" border="1">
51 <tr><th>Paper #</th><th>Group</th><th>Paper Name</th><th>Meeting</th><th>Status</th><th>First released version</th></tr>
52<!--
53 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3346.pdf">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>
54-->
Marshall Clow3687d3c2014-11-17 15:50:08 +0000[diff] [blame]55 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3911">N3911</a></td><td>LWG</td></td><td>TransformationTrait Alias <code>void_t</code>.</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
Marshall Clowad755102014-11-19 19:43:23 +0000[diff] [blame]56 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4089">N4089</a></td><td>LWG</td></td><td>Safe conversions in <code>unique_ptr&lt;T[]&gt;</code>.</td><td>Urbana</td><td></td><td></td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]57 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4169">N4169</a></td><td>LWG</td></td><td>A proposal to add invoke function template</td><td>Urbana</td><td></td><td></td></tr>
Marshall Clowad755102014-11-19 19:43:23 +0000[diff] [blame]58 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4190">N4190</a></td></td><td>LWG</td><td>Removing auto_ptr, random_shuffle(), And Old <functional> Stuff.</td><td>Urbana</td><td></td><td></td></tr>
59 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4258.pdf">N4258</a></td><td>LWG</td></td><td>Cleaning-up noexcept in the Library.</td><td>Urbana</td><td></td><td></td></tr>
60 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/N4277.html">N4277</a></td><td>LWG</td></td><td>TriviallyCopyable <code>reference_wrapper</code>.</td><td>Urbana</td><td>Complete</td><td>3.2</td></tr>
61 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4279.html">N4279</a></td><td>LWG</td></td><td>Improved insertion interface for unique-key maps.</td><td>Urbana</td><td></td><td></td></tr>
62 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4280.pdf">N4280</a></td><td>LWG</td></td><td>Non-member size() and more</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
63 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4284.html">N4284</a></td><td>LWG</td></td><td>Contiguous Iterators.</td><td>Urbana</td><td></td><td></td></tr>
Marshall Clowde559322015-05-01 22:14:35 +0000[diff] [blame^]64 <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4285.html">N4285</a></td><td>CWG</td></td><td>Cleanup for exception-specification and throw-expression.</td><td>Urbana</td><td></td><td></td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]65
66<!-- <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr> -->
67 </table>
68
69 <h3>Library Working group Issues Status</h3>
70<!-- <I>Note: "NAD" means that the issue was deemed "Not a defect"</I> -->
71 <table id="issues" border="1">
72 <tr><th>Issue #</th><th>Issue Name</th><th>Meeting</th><th>Status</th></tr>
73 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2016">2016</a></td><td>Allocators must be no-throw swappable</td><td>Urbana</td><td></td></tr>
Marshall Clowe8584ca2014-11-19 15:59:16 +0000[diff] [blame]74 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2376">2118</td><td><code>unique_ptr</code> for array does not support cv qualification conversion of actual argument</td><td>Urbana</td><td>Will be resolved by N4089</td></tr>
Marshall Clow0846f54b2015-04-28 14:26:29 +0000[diff] [blame]75 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2170">2170</a></td><td>Aggregates cannot be <code>DefaultConstructible</code></td><td>Urbana</td><td>Complete</td></tr>
Marshall Clowe8584ca2014-11-19 15:59:16 +0000[diff] [blame]76 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2387">2308</td><td>Clarify container destructor requirements w.r.t. <code>std::array</code></td><td>Urbana</td><td>Will be resolved by N4258</td></tr>
Marshall Clowf127a2d2014-11-18 17:35:16 +0000[diff] [blame]77 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2340">2340</a></td><td>Replacement allocation functions declared as inline</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]78 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2354">2354</a></td><td>Unnecessary copying when inserting into maps with braced-init syntax</td><td>Urbana</td><td></td></tr>
Marshall Clow0846f54b2015-04-28 14:26:29 +0000[diff] [blame]79 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2377">2377</a></td><td><code>std::align</code> requirements overly strict</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clowf127a2d2014-11-18 17:35:16 +0000[diff] [blame]80 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2396">2396</a></td><td><code>underlying_type</code> doesn't say what to do for an incomplete enumeration type</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow90ba6232014-11-18 20:37:47 +0000[diff] [blame]81 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2399">2399</a></td><td><code>shared_ptr</code>'s constructor from <code>unique_ptr</code> should be constrained</td><td>Urbana</td><td>Complete</td></tr>
82 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2400">2400</a></td><td><code>shared_ptr</code>'s <code>get_deleter()</code> should use <code>addressof()</code></td><td>Urbana</td><td>Complete</td></tr>
Marshall Clowf127a2d2014-11-18 17:35:16 +0000[diff] [blame]83 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2401">2401</a></td><td><code>std::function</code> needs more noexcept</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow90ba6232014-11-18 20:37:47 +0000[diff] [blame]84 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2404">2404</a></td><td><code>mismatch()</code>'s complexity needs to be updated</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow903a5dd2015-04-28 19:35:36 +0000[diff] [blame]85 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2408">2408</a></td><td>SFINAE-friendly <code>common_type</code> / <code>iterator_traits</code> is missing in C++14</td><td>Urbana</td><td><code>common_type</code> is waiting on <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2465">LWG#2465</a></td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]86 <tr><td></td><td></td><td></td><td></td></tr>
87
88 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2106">2106</td><td><code>move_iterator</code> wrapping iterators returning prvalues</td><td>Urbana</td><td></td></tr>
Marshall Clow3687d3c2014-11-17 15:50:08 +0000[diff] [blame]89 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2129">2129</td><td>User specializations of <code>std::initializer_list</code></td><td>Urbana</td><td>Complete</td></tr>
90 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2212">2212</td><td><code>tuple_size</code> for <code>const pair</code> request <tuple> header</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clowb04058e2014-12-15 23:57:56 +0000[diff] [blame]91 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2217">2217</td><td><code>operator==(sub_match, string)</code> slices on embedded '\0's</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow3687d3c2014-11-17 15:50:08 +0000[diff] [blame]92 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2230">2230</td><td>"see below" for <code>initializer_list</code> constructors of unordered containers</td><td>Urbana</td><td>Complete</td></tr>
93 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2233">2233</td><td><code>bad_function_call::what()</code> unhelpful</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]94 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2266">2266</td><td><code>vector</code> and <code>deque</code> have incorrect insert requirements</td><td>Urbana</td><td></td></tr>
Marshall Clow3687d3c2014-11-17 15:50:08 +0000[diff] [blame]95 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2325">2325</td><td><code>minmax_element()</code>'s behavior differing from <code>max_element()</code>'s should be noted</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]96 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2361">2361</td><td>Apply 2299 resolution throughout library</td><td>Urbana</td><td></td></tr>
Marshall Clow3687d3c2014-11-17 15:50:08 +0000[diff] [blame]97 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2365">2365</td><td>Missing noexcept in <code>shared_ptr::shared_ptr(nullptr_t)</code></td><td>Urbana</td><td>Complete</td></tr>
98 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2376">2376</td><td><code>bad_weak_ptr::what()</code> overspecified</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow8f341342015-04-30 15:19:44 +0000[diff] [blame]99 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2387">2387</td><td>More nested types that must be accessible and unambiguous</td><td>Urbana</td><td>Complete</td></tr>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]100<!--
101 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#1214">1214</a></td><td>Insufficient/inconsistent key immutability requirements for associative containers</td><td>Urbana</td><td></td></tr>
102-->
103<!-- <tr><td></td><td></td><td></td><td></td></tr> -->
104 </table>
105
Marshall Clowde559322015-05-01 22:14:35 +0000[diff] [blame^]106 <p>Last Updated: 1-May-2015</p>
Marshall Clow68640682014-11-10 15:43:20 +0000[diff] [blame]107</div>
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