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Tanya Lattnerd08dbfc2015-08-05 03:59:14 +0000[diff] [blame]25 <a href="http://lists.llvm.org/mailman/listinfo/cfe-dev">cfe-dev</a>
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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 Clow88aae922014-11-17 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 Clow716030e2016-02-25 16:55:58 +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>In progress</td><td>3.9</td></tr>
Eric Fiselier22dff532015-07-14 20:16:15 +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>Complete</td><td>3.7</td></tr>
Marshall Clow03c67912014-11-19 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>
Marshall Clowf0324bc2015-06-02 16:34:03 +0000[diff] [blame]59 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4258">N4258</a></td><td>LWG</td></td><td>Cleaning-up noexcept in the Library.</td><td>Urbana</td><td>In progress</td><td>3.7</td></tr>
Marshall Clow8731c5d2015-06-02 15:33:38 +0000[diff] [blame]60 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4259">N4259</a></td><td>CWG</td></td><td>Wording for std::uncaught_exceptions</td><td>Urbana</td><td>Complete</td><td>3.7</td></tr>
Marshall Clow14c616a2015-05-27 17:19:40 +0000[diff] [blame]61 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4277">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>
Marshall Clow0ce05a92015-07-07 05:45:35 +0000[diff] [blame]62 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4279">N4279</a></td><td>LWG</td></td><td>Improved insertion interface for unique-key maps.</td><td>Urbana</td><td>Complete</td><td>3.7</td></tr>
Marshall Clow14c616a2015-05-27 17:19:40 +0000[diff] [blame]63 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4280">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>
64 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4284">N4284</a></td><td>LWG</td></td><td>Contiguous Iterators.</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
65 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4285">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 Clowde763892015-05-18 19:01:11 +0000[diff] [blame]66 <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr>
67 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4387">N4387</a></td><td>LWG</td></td><td>improving pair and tuple</td><td>Lenexa</td><td></td><td></td></tr>
Marshall Clowe7b12e32015-05-18 23:25:09 +0000[diff] [blame]68 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4389">N4389</a></td><td>LWG</td></td><td>bool_constant</td><td>Lenexa</td><td>Complete</td><td>3.7</td></tr>
Marshall Clow5a426e52015-06-30 20:06:00 +0000[diff] [blame]69 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4508">N4508</a></td><td>LWG</td></td><td>shared_mutex for C++17</td><td>Lenexa</td><td>Complete</td><td>3.7</td></tr>
Marshall Clowecec10e2015-05-26 14:58:05 +0000[diff] [blame]70 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4366">N4366</a></td><td>LWG</td></td><td>LWG 2228 missing SFINAE rule</td><td>Lenexa</td><td>Complete</td><td>3.1</td></tr>
Marshall Clowe7b12e32015-05-18 23:25:09 +0000[diff] [blame]71 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4510">N4510</a></td><td>LWG</td></td><td>Minimal incomplete type support for standard containers, revision 4</td><td>Lenexa</td><td>Complete</td><td>3.6</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]72 <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr>
Marshall Clow8aadda92015-10-29 05:43:30 +0000[diff] [blame]73 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0004R1.html">P0004R1</a></td><td>LWG</td><td>Remove Deprecated iostreams aliases.</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clowa3866e42015-11-30 05:39:30 +0000[diff] [blame]74 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0006R0.html">P0006R0</a></td><td>LWG</td><td>Adopt Type Traits Variable Templates for C++17.</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clow223df2e2015-11-05 19:33:59 +0000[diff] [blame]75 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0092R1.html">P0092R1</a></td><td>LWG</td><td>Polishing &lt;chrono&gt;</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clowf60d0922015-11-17 00:08:08 +0000[diff] [blame]76 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0007R1.html">P0007R1</a></td><td>LWG</td><td>Constant View: A proposal for a <tt>std::as_const</tt> helper function template.</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]77 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0156R0.htm" >P0156R0</a></td><td>LWG</td><td>Variadic lock_guard(rev 3).</td><td>Kona</td><td></td><td></td></tr>
Marshall Clow3f159e82015-11-12 15:56:44 +0000[diff] [blame]78 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0074R0.html">P0074R0</a></td><td>LWG</td><td>Making <tt>std::owner_less</tt> more flexible</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clowfe99a302015-11-16 15:54:13 +0000[diff] [blame]79 <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/P0013R1.html">P0013R1</a></td><td>LWG</td><td>Logical type traits rev 2</td><td>Kona</td><td>Complete</td><td>3.8</td></tr>
Marshall Clow60d223d2016-03-06 17:45:24 +0000[diff] [blame^]80 <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr>
81 <tr><td><a href="http://wg21.link/P0024R2">P0024R2</a></td><td>LWG</td><td>The Parallelism TS Should be Standardized</td><td>Jacksonville</td><td></td><td></td></tr>
82 <tr><td><a href="http://wg21.link/P0226R1">P0226R1</a></td><td>LWG</td><td>Mathematical Special Functions for C++17</td><td>Jacksonville</td><td></td><td></td></tr>
83 <tr><td><a href="http://wg21.link/P0220R1">P0220R1</a></td><td>LWG</td><td>Adopt Library Fundamentals V1 TS Components for C++17</td><td>Jacksonville</td><td></td><td></td></tr>
84 <tr><td><a href="http://wg21.link/P0218R1">P0218R1</a></td><td>LWG</td><td>Adopt the File System TS for C++17</td><td>Jacksonville</td><td></td><td></td></tr>
85 <tr><td><a href="http://wg21.link/P0033R1">P0033R1</a></td><td>LWG</td><td>Re-enabling shared_from_this</td><td>Jacksonville</td><td></td><td></td></tr>
86 <tr><td><a href="http://wg21.link/P0005R4">P0005R4</a></td><td>LWG</td><td>Adopt not_fn from Library Fundamentals 2 for C++17</td><td>Jacksonville</td><td></td><td></td></tr>
87 <tr><td><a href="http://wg21.link/P0152R1">P0152R1</a></td><td>LWG</td><td>constexpr atomic::is_always_lock_free</td><td>Jacksonville</td><td></td><td></td></tr>
88 <tr><td><a href="http://wg21.link/P0185R1">P0185R1</a></td><td>LWG</td><td>Adding [nothrow-]swappable traits</td><td>Jacksonville</td><td></td><td></td></tr>
89 <tr><td><a href="http://wg21.link/P0253R1">P0253R1</a></td><td>LWG</td><td>Fixing a design mistake in the searchers interface</td><td>Jacksonville</td><td></td><td></td></tr>
90 <tr><td><a href="http://wg21.link/P0025R0">P0025R0</a></td><td>LWG</td><td>An algorithm to "clamp" a value between a pair of boundary values</td><td>Jacksonville</td><td></td><td></td></tr>
91 <tr><td><a href="http://wg21.link/P0154R1">P0154R1</a></td><td>LWG</td><td>constexpr std::hardware_{constructive,destructive}_interference_size</td><td>Jacksonville</td><td></td><td></td></tr>
92 <tr><td><a href="http://wg21.link/P0030R1">P0030R1</a></td><td>LWG</td><td>Proposal to Introduce a 3-Argument Overload to std::hypot</td><td>Jacksonville</td><td></td><td></td></tr>
93 <tr><td><a href="http://wg21.link/P0031R0">P0031R0</a></td><td>LWG</td><td>A Proposal to Add Constexpr Modifiers to reverse_iterator, move_iterator, array and Range Access</td><td>Jacksonville</td><td></td><td></td></tr>
94 <tr><td><a href="http://wg21.link/P0272R1">P0272R1</a></td><td>LWG</td><td>Give <tt>std::string</tt> a non-const <tt>.data()</tt> member function</td><td>Jacksonville</td><td></td><td></td></tr>
95 <tr><td><a href="http://wg21.link/P0077R2">P0077R2</a></td><td>LWG</td><td><tt>is_callable</tt>, the missing INVOKE related trait</td><td>Jacksonville</td><td></td><td></td></tr>
Marshall Clow1e895c12014-11-10 15:43:20 +0000[diff] [blame]96<!-- <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr> -->
97 </table>
98
99 <h3>Library Working group Issues Status</h3>
100<!-- <I>Note: "NAD" means that the issue was deemed "Not a defect"</I> -->
101 <table id="issues" border="1">
102 <tr><th>Issue #</th><th>Issue Name</th><th>Meeting</th><th>Status</th></tr>
Marshall Clow7ed093b2015-10-05 16:17:34 +0000[diff] [blame]103 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2016">2016</a></td><td>Allocators must be no-throw swappable</td><td>Urbana</td><td></td></tr>
Marshall Clow716030e2016-02-25 16:55:58 +0000[diff] [blame]104 <tr><td><a href="http://cplusplus.github.io/LWG/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>Complete</td></tr>
Marshall Clow7ed093b2015-10-05 16:17:34 +0000[diff] [blame]105 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2170">2170</a></td><td>Aggregates cannot be <code>DefaultConstructible</code></td><td>Urbana</td><td>Complete</td></tr>
106 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2308">2308</td><td>Clarify container destructor requirements w.r.t. <code>std::array</code></td><td>Urbana</td><td>Complete</td></tr>
107 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2340">2340</a></td><td>Replacement allocation functions declared as inline</td><td>Urbana</td><td>Complete</td></tr>
108 <tr><td><a href="http://cplusplus.github.io/LWG/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>
109 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2377">2377</a></td><td><code>std::align</code> requirements overly strict</td><td>Urbana</td><td>Complete</td></tr>
110 <tr><td><a href="http://cplusplus.github.io/LWG/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>
111 <tr><td><a href="http://cplusplus.github.io/LWG/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>
112 <tr><td><a href="http://cplusplus.github.io/LWG/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>
113 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2401">2401</a></td><td><code>std::function</code> needs more noexcept</td><td>Urbana</td><td>Complete</td></tr>
114 <tr><td><a href="http://cplusplus.github.io/LWG/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>
115 <tr><td><a href="http://cplusplus.github.io/LWG/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://cplusplus.github.io/LWG/lwg-defects.html#2465">LWG#2465</a></td></tr>
Marshall Clow1e895c12014-11-10 15:43:20 +0000[diff] [blame]116 <tr><td></td><td></td><td></td><td></td></tr>
Marshall Clow7ed093b2015-10-05 16:17:34 +0000[diff] [blame]117 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2106">2106</td><td><code>move_iterator</code> wrapping iterators returning prvalues</td><td>Urbana</td><td></td></tr>
118 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2129">2129</td><td>User specializations of <code>std::initializer_list</code></td><td>Urbana</td><td>Complete</td></tr>
119 <tr><td><a href="http://cplusplus.github.io/LWG/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>
120 <tr><td><a href="http://cplusplus.github.io/LWG/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>
121 <tr><td><a href="http://cplusplus.github.io/LWG/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>
122 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2233">2233</td><td><code>bad_function_call::what()</code> unhelpful</td><td>Urbana</td><td>Complete</td></tr>
123 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2266">2266</td><td><code>vector</code> and <code>deque</code> have incorrect insert requirements</td><td>Urbana</td><td>Complete</td></tr>
124 <tr><td><a href="http://cplusplus.github.io/LWG/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>
125 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2361">2361</td><td>Apply 2299 resolution throughout library</td><td>Urbana</td><td></td></tr>
126 <tr><td><a href="http://cplusplus.github.io/LWG/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>
127 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2376">2376</td><td><code>bad_weak_ptr::what()</code> overspecified</td><td>Urbana</td><td>Complete</td></tr>
128 <tr><td><a href="http://cplusplus.github.io/LWG/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 Clowde763892015-05-18 19:01:11 +0000[diff] [blame]129 <tr><td></td><td></td><td></td><td></td></tr>
Marshall Clow7ed093b2015-10-05 16:17:34 +0000[diff] [blame]130 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2059">2059</td><td>C++0x ambiguity problem with map::erase</td><td>Lenexa</td><td>Complete</td></tr>
131 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2063">2063</td><td>Contradictory requirements for string move assignment</td><td>Lenexa</td><td>Complete</td></tr>
132 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2076">2076</td><td>Bad CopyConstructible requirement in set constructors</td><td>Lenexa</td><td>Complete</td></tr>
133 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2160">2160</td><td>Unintended destruction ordering-specification of resize</td><td>Lenexa</td><td>Complete</td></tr>
134 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2168">2168</td><td>Inconsistent specification of uniform_real_distribution constructor</td><td>Lenexa</td><td>Complete</td></tr>
135 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2239">2239</td><td>min/max/minmax requirements</td><td>Lenexa</td><td>Complete</td></tr>
136 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2364">2364</td><td>deque and vector pop_back don't specify iterator invalidation requirements</td><td>Lenexa</td><td>Complete</td></tr>
137 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2369">2369</td><td>constexpr max(initializer_list) vs max_element</td><td>Lenexa</td><td>Complete</td></tr>
138 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2378">2378</td><td>Behaviour of standard exception types</td><td>Lenexa</td><td>Complete</td></tr>
139 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2403">2403</td><td>stof() should call strtof() and wcstof()</td><td>Lenexa</td><td>Complete</td></tr>
140 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2406">2406</td><td>negative_binomial_distribution should reject p == 1</td><td>Lenexa</td><td>Complete</td></tr>
141 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2407">2407</td><td>packaged_task(allocator_arg_t, const Allocator&, F&&) should neither be constrained nor explicit</td><td>Lenexa</td><td>Complete</td></tr>
142 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2411">2411</td><td>shared_ptr is only contextually convertible to bool</td><td>Lenexa</td><td>Complete</td></tr>
143 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2415">2415</td><td>Inconsistency between unique_ptr and shared_ptr</td><td>Lenexa</td><td>Complete</td></tr>
144 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2420">2420</td><td>function<void(ArgTypes...)> does not discard the return value of the target object</td><td>Lenexa</td><td>Complete</td></tr>
145 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2425">2425</td><td>operator delete(void*, size_t) doesn't invalidate pointers sufficiently</td><td>Lenexa</td><td>Complete</td></tr>
146 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2427">2427</td><td>Container adaptors as sequence containers, redux</td><td>Lenexa</td><td>Complete</td></tr>
147 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2428">2428</td><td>"External declaration" used without being defined</td><td>Lenexa</td><td>Complete</td></tr>
148 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2433">2433</td><td>uninitialized_copy()/etc. should tolerate overloaded operator&</td><td>Lenexa</td><td>Complete</td></tr>
149 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2434">2434</td><td>shared_ptr::use_count() is efficient</td><td>Lenexa</td><td>Complete</td></tr>
150 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2437">2437</td><td>iterator_traits::reference can and can't be void</td><td>Lenexa</td><td>Complete</td></tr>
151 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2438">2438</td><td>std::iterator inheritance shouldn't be mandated</td><td>Lenexa</td><td>Complete</td></tr>
152 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2439">2439</td><td>unique_copy() sometimes can't fall back to reading its output</td><td>Lenexa</td><td>Complete</td></tr>
153 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2440">2440</td><td>seed_seq::size() should be noexcept</td><td>Lenexa</td><td>Complete</td></tr>
154 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2442">2442</td><td>call_once() shouldn't DECAY_COPY()</td><td>Lenexa</td><td>Complete</td></tr>
155 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2448">2448</td><td>Non-normative Container destructor specification</td><td>Lenexa</td><td>Complete</td></tr>
156 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2454">2454</td><td>Add raw_storage_iterator::base() member</td><td>Lenexa</td><td>Complete</td></tr>
157 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2455">2455</td><td>Allocator default construction should be allowed to throw</td><td>Lenexa</td><td>Complete</td></tr>
158 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2458">2458</td><td>N3778 and new library deallocation signatures</td><td>Lenexa</td><td>Complete</td></tr>
159 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2459">2459</td><td>std::polar should require a non-negative rho</td><td>Lenexa</td><td>Complete</td></tr>
160 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2464">2464</td><td>try_emplace and insert_or_assign misspecified</td><td>Lenexa</td><td>Complete</td></tr>
161 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2467">2467</td><td>is_always_equal has slightly inconsistent default</td><td>Lenexa</td><td>Complete</td></tr>
162 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2470">2470</td><td>Allocator's destroy function should be allowed to fail to instantiate</td><td>Lenexa</td><td>Complete</td></tr>
163 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2482">2482</td><td>[c.strings] Table 73 mentions nonexistent functions</td><td>Lenexa</td><td>Complete</td></tr>
164 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2488">2488</td><td>Placeholders should be allowed and encouraged to be constexpr</td><td>Lenexa</td><td></td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]165 <tr><td></td><td></td><td></td><td></td></tr>
166 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#1169">1169</a></td><td><tt>num_get</tt> not fully compatible with <tt>strto*</tt></td><td>Kona</td><td></td></tr>
167 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2072">2072</a></td><td>Unclear wording about capacity of temporary buffers</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow7a7960f2016-01-21 18:22:43 +0000[diff] [blame]168 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2101">2101</a></td><td>Some transformation types can produce impossible types</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]169 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2111">2111</a></td><td>Which <tt>unexpected</tt>&#47;<tt>terminate</tt> handler is called from the exception handling runtime?</td><td>Kona</td><td>Complete</td></tr>
170 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2119">2119</a></td><td>Missing <tt>hash</tt> specializations for extended integer types</td><td>Kona</td><td></td></tr>
Marshall Clow332ab912015-10-25 18:58:07 +0000[diff] [blame]171 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2127">2127</a></td><td>Move-construction with <tt>raw_storage_iterator</tt></td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]172 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2133">2133</a></td><td>Attitude to overloaded comma for iterators</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow7b7c9ec2015-11-16 16:42:16 +0000[diff] [blame]173 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2156">2156</a></td><td>Unordered containers' <tt>reserve(n)</tt> reserves for <tt>n-1</tt> elements</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]174 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2218">2218</a></td><td>Unclear how containers use <tt>allocator_traits::construct()</tt></td><td>Kona</td><td></td></tr>
175 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2219">2219</a></td><td><tt><i>INVOKE</i></tt>-ing a pointer to member with a <tt>reference_wrapper</tt> as the object expression</td><td>Kona</td><td></td></tr>
Marshall Clowfa62fbe2015-11-07 17:56:51 +0000[diff] [blame]176 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2224">2224</a></td><td>Ambiguous status of access to non-live objects</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow970a9e52015-11-05 19:57:50 +0000[diff] [blame]177 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2234">2234</a></td><td><tt>assert()</tt> should allow usage in constant expressions</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowdbef2bb2015-10-25 18:31:51 +0000[diff] [blame]178 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2244">2244</a></td><td>Issue on <tt>basic_istream::seekg</tt></td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]179 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2250">2250</a></td><td>Follow-up On Library Issue 2207</td><td>Kona</td><td></td></tr>
180 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2259">2259</a></td><td>Issues in 17.6.5.5 rules for member functions</td><td>Kona</td><td>Complete</td></tr>
181 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2273">2273</a></td><td><tt>regex_match</tt> ambiguity</td><td>Kona</td><td></td></tr>
182 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2336">2336</a></td><td><tt>is_trivially_constructible/is_trivially_assignable</tt> traits are always false</td><td>Kona</td><td></td></tr>
Marshall Clowe9ef9882015-11-07 17:48:49 +0000[diff] [blame]183 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2353">2353</a></td><td><tt>std::next</tt> is over-constrained</td><td>Kona</td><td>Complete</td></tr>
Eric Fiseliere9cac662015-12-29 23:18:27 +0000[diff] [blame]184 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2367">2367</a></td><td><tt>pair</tt> and <tt>tuple</tt> are not correctly implemented for <tt>is_constructible</tt> with no args</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]185 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2380">2380</a></td><td>May <tt>&lt;cstdlib&gt;</tt> provide <tt>long ::abs(long)</tt> and <tt>long long ::abs(long long)</tt>?</td><td>Kona</td><td>Complete</td></tr>
186 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2384">2384</a></td><td>Allocator's <tt>deallocate</tt> function needs better specification</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow73de8802016-01-25 17:29:55 +0000[diff] [blame]187 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2385">2385</a></td><td><tt>function::assign</tt> allocator argument doesn't make sense</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]188 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2435">2435</a></td><td><tt>reference_wrapper::operator()</tt>'s Remark should be deleted</td><td>Kona</td><td>Complete</td></tr>
189 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2447">2447</a></td><td>Allocators and <tt>volatile</tt>-qualified value types</td><td>Kona</td><td>Complete</td></tr>
190 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2462">2462</a></td><td><tt>std::ios_base::failure</tt> is overspecified</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow88fa03a2015-10-25 19:34:04 +0000[diff] [blame]191 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2466">2466</a></td><td><tt>allocator_traits::max_size()</tt> default behavior is incorrect</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]192 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2469">2469</a></td><td>Wrong specification of Requires clause of <tt>operator[]</tt> for <tt>map</tt> and <tt>unordered_map</tt></td><td>Kona</td><td></td></tr>
193 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2473">2473</a></td><td><tt>basic_filebuf</tt>'s relation to C <tt>FILE</tt> semantics</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfb7b97c2015-10-25 20:12:16 +0000[diff] [blame]194 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2476">2476</a></td><td><tt>scoped_allocator_adaptor</tt> is not assignable</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]195 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2477">2477</a></td><td>Inconsistency of wordings in <tt>std::vector::erase()</tt> and <tt>std::deque::erase()</tt></td><td>Kona</td><td>Complete</td></tr>
196 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2483">2483</a></td><td><tt>throw_with_nested()</tt> should use <tt>is_final</tt></td><td>Kona</td><td>Complete</td></tr>
197 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2484">2484</a></td><td><tt>rethrow_if_nested()</tt> is doubly unimplementable</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow73de8802016-01-25 17:29:55 +0000[diff] [blame]198 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2485">2485</a></td><td><tt>get()</tt> should be overloaded for <tt>const tuple&amp;&amp;</tt></td><td>Kona</td><td>Complete</td></tr>
Marshall Clow6b6407a2015-11-09 20:49:15 +0000[diff] [blame]199 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2486">2486</a></td><td><tt>mem_fn()</tt> should be required to use perfect forwarding</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]200 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2487">2487</a></td><td><tt>bind()</tt> should be <tt>const</tt>-overloaded, not <i>cv</i>-overloaded</td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfb7b97c2015-10-25 20:12:16 +0000[diff] [blame]201 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2489">2489</a></td><td><tt>mem_fn()</tt> should be <tt>noexcept</tt></td><td>Kona</td><td>Complete</td></tr>
Marshall Clowfd33deb2015-10-25 06:02:23 +0000[diff] [blame]202 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2492">2492</a></td><td>Clarify requirements for <tt>comp</tt></td><td>Kona</td><td>Complete</td></tr>
Marshall Clow28ce1c82015-10-25 20:12:58 +0000[diff] [blame]203 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2495">2495</a></td><td>There is no such thing as an Exception Safety element</td><td>Kona</td><td>Complete</td></tr>
Marshall Clow60d223d2016-03-06 17:45:24 +0000[diff] [blame^]204 <tr><td></td><td></td><td></td><td></td></tr>
205 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2192">2192</a></td><td>Validity and return type of <tt>std::abs(0u)</tt> is unclear</td><td>Jacksonville</td><td></td></tr>
206 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2276">2276</a></td><td>Missing requirement on <tt>std::promise::set_exception</tt></td><td>Jacksonville</td><td></td></tr>
207 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2296">2296</a></td><td><tt>std::addressof</tt> should be <tt>constexpr</td><td>Jacksonville</td><td></td></tr>
208 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2450">2450</a></td><td><tt>(greater|less|greater_equal|less_equal)&lt;void&gt;</tt> do not yield a total order for pointers</td><td>Jacksonville</td><td></td></tr>
209 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2520">2520</a></td><td>N4089 broke initializing <tt>unique_ptr&lt;T[]&gt;</tt> from a <tt>nullptr</tt></td><td>Jacksonville</td><td></td></tr>
210 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2522">2522</a></td><td>[fund.ts.v2] Contradiction in <tt>set_default_resource</tt> specification</td><td>Jacksonville</td><td></td></tr>
211 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2523">2523</a></td><td><tt>std::promise</tt> synopsis shows two <tt>set_value_at_thread_exit()</tt>'s for no apparent reason</td><td>Jacksonville</td><td>Complete</td></tr>
212 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2537">2537</a></td><td>Constructors for <code>priority_queue</code> taking allocators should call <code>make_heap</code></td><td>Jacksonville</td><td></td></tr>
213 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2539">2539</a></td><td>[fund.ts.v2] <tt>invocation_trait</tt> definition definition doesn't work for surrogate call functions</td><td>Jacksonville</td><td></td></tr>
214 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2545">2545</a></td><td>Simplify wording for <tt>bind</tt> without explicitly specified return type</td><td>Jacksonville</td><td></td></tr>
215 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2557">2557</a></td><td>Logical operator traits are broken in the zero-argument case</td><td>Jacksonville</td><td>Complete</td></tr>
216 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2558">2558</a></td><td>[fund.ts.v2] Logical operator traits are broken in the zero-argument case</td><td>Jacksonville</td><td>Complete</td></tr>
217 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2559">2559</a></td><td>Error in LWG 2234's resolution</td><td>Jacksonville</td><td>Complete</td></tr>
218 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2560">2560</a></td><td><tt>is_constructible</tt> underspecified when applied to a function type</td><td>Jacksonville</td><td>Broken in 3.6; See r261653.</td></tr>
219 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2565">2565</a></td><td><tt>std::function</tt>'s move constructor should guarantee nothrow for <tt>reference_wrapper</tt>s and function pointers</td><td>Jacksonville</td><td></td></tr>
220 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2566">2566</a></td><td>Requirements on the first template parameter of container adaptors</td><td>Jacksonville</td><td></td></tr>
221 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2571">2571</a></td><td>&sect;[map.modifiers]/2 imposes nonsensical requirement on <tt>insert(InputIterator, InputIterator)</tt></td><td>Jacksonville</td><td>Complete</td></tr>
222 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2572">2572</a></td><td>The remarks for <tt>shared_ptr::operator*</tt> should apply to <i>cv</i>-qualified <tt>void</tt> as well</td><td>Jacksonville</td><td>Complete</td></tr>
223 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2574">2574</a></td><td>[fund.ts.v2] <tt>std::experimental::function::operator=(F&amp;&amp;)</tt> should be constrained</td><td>Jacksonville</td><td></td></tr>
224 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2575">2575</a></td><td>[fund.ts.v2] <tt>experimental::function::assign</tt> should be removed</td><td>Jacksonville</td><td></td></tr>
225 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2576">2576</a></td><td><tt>istream_iterator</tt> and <tt>ostream_iterator</tt> should use <tt>std::addressof</tt></td><td>Jacksonville</td><td></td></tr>
226 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2577">2577</a></td><td><tt>{shared,unique}_lock</tt> should use <tt>std::addressof</tt></td><td>Jacksonville</td><td></td></tr>
227 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2579">2579</a></td><td>Inconsistency wrt Allocators in <tt>basic_string</tt> assignment vs. <tt>basic_string::assign</tt></td><td>Jacksonville</td><td><i></i></td></tr>
228 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2581">2581</a></td><td>Specialization of <tt>&lt;type_traits&gt;</tt> variable templates should be prohibited</td><td>Jacksonville</td><td>Complete</td></tr>
229 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2582">2582</a></td><td>&sect;[res.on.functions]/2's prohibition against incomplete types shouldn't apply to type traits</td><td>Jacksonville</td><td></td></tr>
230 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2583">2583</a></td><td>There is no way to supply an allocator for <tt>basic_string(str, pos)</tt></td><td>Jacksonville</td><td><i></i></td></tr>
231 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2585">2585</a></td><td><tt>forward_list::resize(size_type, const value_type&amp;)</tt> effects incorrect</td><td>Jacksonville</td><td></td></tr>
232 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2586">2586</a></td><td>Wrong value category used in <tt>scoped_allocator_adaptor::construct()</tt></td><td>Jacksonville</td><td></td></tr>
233 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#2590">2590</a></td><td>Aggregate initialization for <tt>std::array</tt></td><td>Jacksonville</td><td>Complete</td></tr>
Marshall Clowde763892015-05-18 19:01:11 +0000[diff] [blame]234
Marshall Clow1e895c12014-11-10 15:43:20 +0000[diff] [blame]235<!--
Marshall Clow7ed093b2015-10-05 16:17:34 +0000[diff] [blame]236 <tr><td><a href="http://cplusplus.github.io/LWG/lwg-defects.html#1214">1214</a></td><td>Insufficient/inconsistent key immutability requirements for associative containers</td><td>Urbana</td><td></td></tr>
Marshall Clow1e895c12014-11-10 15:43:20 +0000[diff] [blame]237-->
238<!-- <tr><td></td><td></td><td></td><td></td></tr> -->
239 </table>
240
Marshall Clow60d223d2016-03-06 17:45:24 +0000[diff] [blame^]241 <p>Last Updated: 6-Mar-2016</p>
Marshall Clow1e895c12014-11-10 15:43:20 +0000[diff] [blame]242</div>
243</body>
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