<li>SG1 - Study group #1 (Concurrency working group)</li>
</ul>
</p>
<h3>Paper Status</h3>
<tableid="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><ahref="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>
<tr><td><ahref="http://wg21.link/LWG2221">2221</a></td><td>No formatted output operator for nullptr</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2223">2223</a></td><td>shrink_to_fit effect on iterator validity</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2261">2261</a></td><td>Are containers required to use their 'pointer' type internally?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2358">2358</a></td><td>Apparently-bogus definition of is_empty type trait</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2394">2394</a></td><td>locale::name specification unclear - what is implementation-defined?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2460">2460</a></td><td>LWG issue 2408 and value categories</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2468">2468</a></td><td>Self-move-assignment of library types</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2475">2475</a></td><td>Allow overwriting of std::basic_string terminator with charT() to allow cleaner interoperation with legacy APIs</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2503">2503</a></td><td>multiline option should be added to syntax_option_type</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2510">2510</a></td><td>Tag types should not be DefaultConstructible</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2514">2514</a></td><td>Type traits must not be final</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2519">2519</a></td><td>Iterator operator-= has gratuitous undefined behaviour</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2531">2531</a></td><td>future::get should explicitly state that the shared state is released</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2536">2536</a></td><td>What should <complex.h> do?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2540">2540</a></td><td>unordered_multimap::insert hint iterator</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2543">2543</a></td><td>LWG 2148 (hash support for enum types) seems under-specified</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2544">2544</a></td><td>istreambuf_iterator(basic_streambuf<charT,traits>* s) effects unclear when s is 0</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2556">2556</a></td><td>Wide contract for future::share()</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2562">2562</a></td><td>Consistent total ordering of pointers by comparison functors</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2567">2567</a></td><td>Specification of logical operator traits uses BaseCharacteristic, which is defined only for UnaryTypeTraits and BinaryTypeTraits</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2569">2569</a></td><td>conjunction and disjunction requirements are too strict</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2570">2570</a></td><td>[fund.ts.v2] conjunction and disjunction requirements are too strict</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2578">2578</a></td><td>Iterator requirements should reference iterator traits</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2584">2584</a></td><td><regex> ECMAScript IdentityEscape is ambiguous</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2589">2589</a></td><td>match_results can't satisfy the requirements of a container</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2591">2591</a></td><td>std::function's member template target() should not lead to undefined behaviour</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2598">2598</a></td><td>addressof works on temporaries</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2664">2664</a></td><td>operator/ (and other append) semantics not useful if argument has root</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2665">2665</a></td><td>remove_filename() post condition is incorrect</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2672">2672</a></td><td>Should is_empty use error_code in its specification?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2682">2682</a></td><td>filesystem::copy() won't create a symlink to a directory</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2686">2686</a></td><td>Why is std::hash specialized for error_code, but not error_condition?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2694">2694</a></td><td>Application of LWG 436 accidentally deleted definition of "facet"</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2696">2696</a></td><td>Interaction between make_shared and enable_shared_from_this is underspecified</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2699">2699</a></td><td>Missing restriction in [numeric.requirements]</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2712">2712</a></td><td>copy_file(from, to, ...) has a number of unspecified error conditions</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2729">2729</a></td><td>Missing SFINAE on std::pair::operator=</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2732">2732</a></td><td>Questionable specification of path::operator/= and path::append</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2733">2733</a></td><td>[fund.ts.v2] gcd / lcm and bool</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2735">2735</a></td><td>std::abs(short), std::abs(signed char) and others should return int instead of double in order to be compatible with C++98 and C</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2738">2738</a></td><td>is_constructible with void types</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2739">2739</a></td><td>Issue with time_point non-member subtraction with an unsigned duration</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2752">2752</a></td><td>"Throws:" clauses of async and packaged_task are unimplementable</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2753">2753</a></td><td>Optional's constructors and assignments need constraints</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2754">2754</a></td><td>The in_place constructors and emplace functions added by P0032R3 don't require CopyConstructible</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2756">2756</a></td><td>C++ WP optional<T> should 'forward' T's implicit conversions</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2759">2759</a></td><td>gcd / lcm and bool for the WP</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2760">2760</a></td><td>non-const basic_string::data should not invalidate iterators</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2765">2765</a></td><td>Did LWG 1123 go too far?</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2767">2767</a></td><td>not_fn call_wrapper can form invalid types</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2768">2768</a></td><td>any_cast and move semantics</td><td>Issaquah</td><td></td></tr>
<tr><td><ahref="http://wg21.link/LWG2769">2769</a></td><td>Redundant const in the return type of any_cast(const any&)</td><td>Issaquah</td><td></td></tr>