llvm-project/libcxx/docs/Status/Cxx17Issues.csv
A. Jiang 3d688233bd
[libc++][docs] Add missing entry for status pages, fix bad formatting, and deduplicate (#148186)
In a previously PR, the entry for P3491R3 define_static_{string,object,array} was missing.
This patch adds it back.

The number of LWG2687, LWG2709, LWG3315, LWG3395, LWG3987, and LWG4113
were duplicated in the title. It seems better to avoid such duplicates.

Also fixes some formatting to properly use italic and code styles, and
remove one improper leading space from the title of P3682R0 (which
caused incorrect alignment in the generated page).
2025-07-15 11:14:41 -04:00

43 KiB

1Issue #Issue NameMeetingStatusFirst released versionNotes
2`LWG2016 <https://wg21.link/LWG2016>`__Allocators must be no-throw swappable2014-11 (Urbana)|Complete|
3`LWG2118 <https://wg21.link/LWG2118>`__``unique_ptr``\ for array does not support cv qualification conversion of actual argument2014-11 (Urbana)|Complete|
4`LWG2170 <https://wg21.link/LWG2170>`__Aggregates cannot be ``DefaultConstructible``\ 2014-11 (Urbana)|Complete|
5`LWG2340 <https://wg21.link/LWG2340>`__Replacement allocation functions declared as inline2014-11 (Urbana)|Complete|
6`LWG2354 <https://wg21.link/LWG2354>`__Unnecessary copying when inserting into maps with braced-init syntax2014-11 (Urbana)|Complete|
7`LWG2377 <https://wg21.link/LWG2377>`__``std::align``\ requirements overly strict2014-11 (Urbana)|Complete|
8`LWG2396 <https://wg21.link/LWG2396>`__``underlying_type``\ doesn't say what to do for an incomplete enumeration type2014-11 (Urbana)|Complete|
9`LWG2399 <https://wg21.link/LWG2399>`__``shared_ptr``\ 's constructor from ``unique_ptr``\ should be constrained2014-11 (Urbana)|Complete|
10`LWG2400 <https://wg21.link/LWG2400>`__``shared_ptr``\ 's ``get_deleter()``\ should use ``addressof()``\ 2014-11 (Urbana)|Complete|
11`LWG2401 <https://wg21.link/LWG2401>`__``std::function``\ needs more noexcept2014-11 (Urbana)|Complete|
12`LWG2404 <https://wg21.link/LWG2404>`__``mismatch()``\ 's complexity needs to be updated2014-11 (Urbana)|Complete|
13`LWG2408 <https://wg21.link/LWG2408>`__SFINAE-friendly ``common_type``\ / ``iterator_traits``\ is missing in C++142014-11 (Urbana)|Complete|
14`LWG2106 <https://wg21.link/LWG2106>`__``move_iterator``\ wrapping iterators returning prvalues2014-11 (Urbana)|Complete|
15`LWG2129 <https://wg21.link/LWG2129>`__User specializations of ``std::initializer_list``\ 2014-11 (Urbana)|Complete|21
16`LWG2212 <https://wg21.link/LWG2212>`__``tuple_size``\ for ``const pair``\ request <tuple> header2014-11 (Urbana)|Complete|
17`LWG2217 <https://wg21.link/LWG2217>`__``operator==(sub_match, string)``\ slices on embedded '\0's2014-11 (Urbana)|Complete|
18`LWG2230 <https://wg21.link/LWG2230>`__"see below" for ``initializer_list``\ constructors of unordered containers2014-11 (Urbana)|Complete|
19`LWG2233 <https://wg21.link/LWG2233>`__``bad_function_call::what()``\ unhelpful2014-11 (Urbana)|Complete|
20`LWG2266 <https://wg21.link/LWG2266>`__``vector``\ and ``deque``\ have incorrect insert requirements2014-11 (Urbana)|Complete|
21`LWG2325 <https://wg21.link/LWG2325>`__``minmax_element()``\ 's behavior differing from ``max_element()``\ 's should be noted2014-11 (Urbana)|Complete|
22`LWG2361 <https://wg21.link/LWG2361>`__Apply 2299 resolution throughout library2014-11 (Urbana)|Complete|
23`LWG2365 <https://wg21.link/LWG2365>`__Missing noexcept in ``shared_ptr::shared_ptr(nullptr_t)``\ 2014-11 (Urbana)|Complete|
24`LWG2376 <https://wg21.link/LWG2376>`__``bad_weak_ptr::what()``\ overspecified2014-11 (Urbana)|Complete|
25`LWG2387 <https://wg21.link/LWG2387>`__More nested types that must be accessible and unambiguous2014-11 (Urbana)|Complete|
26
27`LWG2059 <https://wg21.link/LWG2059>`__C++0x ambiguity problem with map::erase2015-05 (Lenexa)|Complete|
28`LWG2063 <https://wg21.link/LWG2063>`__Contradictory requirements for string move assignment2015-05 (Lenexa)|Complete|
29`LWG2076 <https://wg21.link/LWG2076>`__Bad CopyConstructible requirement in set constructors2015-05 (Lenexa)|Complete|
30`LWG2160 <https://wg21.link/LWG2160>`__Unintended destruction ordering-specification of resize2015-05 (Lenexa)|Complete|
31`LWG2168 <https://wg21.link/LWG2168>`__Inconsistent specification of uniform_real_distribution constructor2015-05 (Lenexa)|Complete|
32`LWG2239 <https://wg21.link/LWG2239>`__min/max/minmax requirements2015-05 (Lenexa)|Complete|
33`LWG2364 <https://wg21.link/LWG2364>`__deque and vector pop_back don't specify iterator invalidation requirements2015-05 (Lenexa)|Complete|
34`LWG2369 <https://wg21.link/LWG2369>`__constexpr max(initializer_list) vs max_element2015-05 (Lenexa)|Complete|
35`LWG2378 <https://wg21.link/LWG2378>`__Behaviour of standard exception types2015-05 (Lenexa)|Complete|
36`LWG2403 <https://wg21.link/LWG2403>`__stof() should call strtof() and wcstof()2015-05 (Lenexa)|Complete|
37`LWG2406 <https://wg21.link/LWG2406>`__negative_binomial_distribution should reject p == 12015-05 (Lenexa)|Complete|
38`LWG2407 <https://wg21.link/LWG2407>`__packaged_task(allocator_arg_t, const Allocator&, F&&) should neither be constrained nor explicit2015-05 (Lenexa)|Complete|
39`LWG2411 <https://wg21.link/LWG2411>`__shared_ptr is only contextually convertible to bool2015-05 (Lenexa)|Complete|
40`LWG2415 <https://wg21.link/LWG2415>`__Inconsistency between unique_ptr and shared_ptr2015-05 (Lenexa)|Complete|
41`LWG2420 <https://wg21.link/LWG2420>`__function<void(ArgTypes...)> does not discard the return value of the target object2015-05 (Lenexa)|Complete|
42`LWG2425 <https://wg21.link/LWG2425>`__``operator delete(void*, size_t)``\ doesn't invalidate pointers sufficiently2015-05 (Lenexa)|Complete|
43`LWG2427 <https://wg21.link/LWG2427>`__Container adaptors as sequence containers, redux2015-05 (Lenexa)|Complete|
44`LWG2428 <https://wg21.link/LWG2428>`__"External declaration" used without being defined2015-05 (Lenexa)|Complete|
45`LWG2433 <https://wg21.link/LWG2433>`__``uninitialized_copy()``\ /etc. should tolerate overloaded operator&2015-05 (Lenexa)|Complete|
46`LWG2434 <https://wg21.link/LWG2434>`__``shared_ptr::use_count()``\ is efficient2015-05 (Lenexa)|Complete|
47`LWG2437 <https://wg21.link/LWG2437>`__``iterator_traits::reference``\ can and can't be void2015-05 (Lenexa)|Complete|
48`LWG2438 <https://wg21.link/LWG2438>`__``std::iterator``\ inheritance shouldn't be mandated2015-05 (Lenexa)|Complete|
49`LWG2439 <https://wg21.link/LWG2439>`__``unique_copy()``\ sometimes can't fall back to reading its output2015-05 (Lenexa)|Complete|
50`LWG2440 <https://wg21.link/LWG2440>`__``seed_seq::size()``\ should be noexcept2015-05 (Lenexa)|Complete|
51`LWG2442 <https://wg21.link/LWG2442>`__``call_once()``\ shouldn't DECAY_COPY()2015-05 (Lenexa)|Complete|
52`LWG2448 <https://wg21.link/LWG2448>`__Non-normative Container destructor specification2015-05 (Lenexa)|Complete|
53`LWG2454 <https://wg21.link/LWG2454>`__Add ``raw_storage_iterator::base()``\ member2015-05 (Lenexa)|Complete|
54`LWG2455 <https://wg21.link/LWG2455>`__Allocator default construction should be allowed to throw2015-05 (Lenexa)|Complete|
55`LWG2458 <https://wg21.link/LWG2458>`__N3778 and new library deallocation signatures2015-05 (Lenexa)|Complete|
56`LWG2459 <https://wg21.link/LWG2459>`__``std::polar``\ should require a non-negative rho2015-05 (Lenexa)|Complete|
57`LWG2464 <https://wg21.link/LWG2464>`__``try_emplace``\ and ``insert_or_assign``\ misspecified2015-05 (Lenexa)|Complete|
58`LWG2467 <https://wg21.link/LWG2467>`__``is_always_equal``\ has slightly inconsistent default2015-05 (Lenexa)|Complete|
59`LWG2470 <https://wg21.link/LWG2470>`__Allocator's destroy function should be allowed to fail to instantiate2015-05 (Lenexa)|Complete|
60`LWG2482 <https://wg21.link/LWG2482>`__[c.strings] Table 73 mentions nonexistent functions2015-05 (Lenexa)|Complete|
61`LWG2488 <https://wg21.link/LWG2488>`__Placeholders should be allowed and encouraged to be constexpr2015-05 (Lenexa)|Complete|
62
63`LWG1169 <https://wg21.link/LWG1169>`__``num_get``\ not fully compatible with ``strto*``\ 2015-10 (Kona)|Complete|
64`LWG2072 <https://wg21.link/LWG2072>`__Unclear wording about capacity of temporary buffers2015-10 (Kona)|Complete|
65`LWG2101 <https://wg21.link/LWG2101>`__Some transformation types can produce impossible types2015-10 (Kona)|Complete|
66`LWG2111 <https://wg21.link/LWG2111>`__Which ``unexpected``\ &#47;``terminate``\ handler is called from the exception handling runtime?2015-10 (Kona)|Complete|
67`LWG2119 <https://wg21.link/LWG2119>`__Missing ``hash``\ specializations for extended integer types2015-10 (Kona)|Complete|
68`LWG2127 <https://wg21.link/LWG2127>`__Move-construction with ``raw_storage_iterator``\ 2015-10 (Kona)|Complete|
69`LWG2133 <https://wg21.link/LWG2133>`__Attitude to overloaded comma for iterators2015-10 (Kona)|Complete|
70`LWG2156 <https://wg21.link/LWG2156>`__Unordered containers' ``reserve(n)``\ reserves for ``n-1``\ elements2015-10 (Kona)|Complete|
71`LWG2218 <https://wg21.link/LWG2218>`__Unclear how containers use ``allocator_traits::construct()``\ 2015-10 (Kona)|Complete|
72`LWG2219 <https://wg21.link/LWG2219>`__``*INVOKE*``\ -ing a pointer to member with a ``reference_wrapper``\ as the object expression2015-10 (Kona)|Complete|
73`LWG2224 <https://wg21.link/LWG2224>`__Ambiguous status of access to non-live objects2015-10 (Kona)|Complete|
74`LWG2234 <https://wg21.link/LWG2234>`__``assert()``\ should allow usage in constant expressions2015-10 (Kona)|Complete|
75`LWG2244 <https://wg21.link/LWG2244>`__Issue on ``basic_istream::seekg``\ 2015-10 (Kona)|Complete|
76`LWG2250 <https://wg21.link/LWG2250>`__Follow-up On Library Issue 22072015-10 (Kona)|Complete|
77`LWG2259 <https://wg21.link/LWG2259>`__Issues in 17.6.5.5 rules for member functions2015-10 (Kona)|Complete|
78`LWG2273 <https://wg21.link/LWG2273>`__``regex_match``\ ambiguity2015-10 (Kona)|Complete|
79`LWG2336 <https://wg21.link/LWG2336>`__``is_trivially_constructible``\ /``is_trivially_assignable``\ traits are always false2015-10 (Kona)|Complete|
80`LWG2353 <https://wg21.link/LWG2353>`__``std::next``\ is over-constrained2015-10 (Kona)|Complete|
81`LWG2367 <https://wg21.link/LWG2367>`__``pair``\ and ``tuple``\ are not correctly implemented for ``is_constructible``\ with no args2015-10 (Kona)|Complete|
82`LWG2380 <https://wg21.link/LWG2380>`__May ``<cstdlib>``\ provide ``long ::abs(long)``\ and ``long long ::abs(long long)``\ ?2015-10 (Kona)|Complete|
83`LWG2384 <https://wg21.link/LWG2384>`__Allocator's ``deallocate``\ function needs better specification2015-10 (Kona)|Complete|
84`LWG2385 <https://wg21.link/LWG2385>`__``function::assign``\ allocator argument doesn't make sense2015-10 (Kona)|Complete|
85`LWG2435 <https://wg21.link/LWG2435>`__``reference_wrapper::operator()``\ 's Remark should be deleted2015-10 (Kona)|Complete|
86`LWG2447 <https://wg21.link/LWG2447>`__Allocators and ``volatile``\ -qualified value types2015-10 (Kona)|Complete|
87`LWG2462 <https://wg21.link/LWG2462>`__``std::ios_base::failure``\ is overspecified2015-10 (Kona)|Complete|
88`LWG2466 <https://wg21.link/LWG2466>`__``allocator_traits::max_size()``\ default behavior is incorrect2015-10 (Kona)|Complete|
89`LWG2469 <https://wg21.link/LWG2469>`__Wrong specification of Requires clause of ``operator[]``\ for ``map``\ and ``unordered_map``\ 2015-10 (Kona)|Complete|
90`LWG2473 <https://wg21.link/LWG2473>`__``basic_filebuf``\ 's relation to C ``FILE``\ semantics2015-10 (Kona)|Complete|
91`LWG2476 <https://wg21.link/LWG2476>`__``scoped_allocator_adaptor``\ is not assignable2015-10 (Kona)|Complete|
92`LWG2477 <https://wg21.link/LWG2477>`__Inconsistency of wordings in ``std::vector::erase()``\ and ``std::deque::erase()``\ 2015-10 (Kona)|Complete|
93`LWG2483 <https://wg21.link/LWG2483>`__``throw_with_nested()``\ should use ``is_final``\ 2015-10 (Kona)|Complete|
94`LWG2484 <https://wg21.link/LWG2484>`__``rethrow_if_nested()``\ is doubly unimplementable2015-10 (Kona)|Complete|
95`LWG2485 <https://wg21.link/LWG2485>`__``get()``\ should be overloaded for ``const tuple&&``\ 2015-10 (Kona)|Complete|
96`LWG2486 <https://wg21.link/LWG2486>`__``mem_fn()``\ should be required to use perfect forwarding2015-10 (Kona)|Complete|
97`LWG2487 <https://wg21.link/LWG2487>`__``bind()``\ should be ``const``\ -overloaded, not *cv*-overloaded2015-10 (Kona)|Complete|
98`LWG2489 <https://wg21.link/LWG2489>`__``mem_fn()``\ should be ``noexcept``\ 2015-10 (Kona)|Complete|
99`LWG2492 <https://wg21.link/LWG2492>`__Clarify requirements for ``comp``\ 2015-10 (Kona)|Complete|
100`LWG2495 <https://wg21.link/LWG2495>`__There is no such thing as an Exception Safety element2015-10 (Kona)|Complete|
101
102`LWG2192 <https://wg21.link/LWG2192>`__Validity and return type of ``std::abs(0u)``\ is unclear2016-02 (Jacksonville)|Complete|
103`LWG2276 <https://wg21.link/LWG2276>`__Missing requirement on ``std::promise::set_exception``\ 2016-02 (Jacksonville)|Complete|
104`LWG2296 <https://wg21.link/LWG2296>`__``std::addressof``\ should be ``constexpr``\ 2016-02 (Jacksonville)|Complete|
105`LWG2450 <https://wg21.link/LWG2450>`__``(greater|less|greater_equal|less_equal)<void>``\ do not yield a total order for pointers2016-02 (Jacksonville)|Complete|
106`LWG2520 <https://wg21.link/LWG2520>`__N4089 broke initializing ``unique_ptr<T[]>``\ from a ``nullptr``\ 2016-02 (Jacksonville)|Complete|
107`LWG2522 <https://wg21.link/LWG2522>`__[fund.ts.v2] Contradiction in ``set_default_resource``\ specification2016-02 (Jacksonville)|Complete|
108`LWG2523 <https://wg21.link/LWG2523>`__``std::promise``\ synopsis shows two ``set_value_at_thread_exit()``\ 's for no apparent reason2016-02 (Jacksonville)|Complete|
109`LWG2537 <https://wg21.link/LWG2537>`__Constructors for ``priority_queue``\ taking allocators should call ``make_heap``\ 2016-02 (Jacksonville)|Complete|
110`LWG2539 <https://wg21.link/LWG2539>`__[fund.ts.v2] ``invocation_trait``\ definition definition doesn't work for surrogate call functions2016-02 (Jacksonville)
111`LWG2545 <https://wg21.link/LWG2545>`__Simplify wording for ``bind``\ without explicitly specified return type2016-02 (Jacksonville)|Complete|
112`LWG2557 <https://wg21.link/LWG2557>`__Logical operator traits are broken in the zero-argument case2016-02 (Jacksonville)|Complete|
113`LWG2558 <https://wg21.link/LWG2558>`__[fund.ts.v2] Logical operator traits are broken in the zero-argument case2016-02 (Jacksonville)|Complete|
114`LWG2559 <https://wg21.link/LWG2559>`__Error in LWG 2234's resolution2016-02 (Jacksonville)|Complete|
115`LWG2560 <https://wg21.link/LWG2560>`__``is_constructible``\ underspecified when applied to a function type2016-02 (Jacksonville)|Complete|
116`LWG2565 <https://wg21.link/LWG2565>`__``std::function``\ 's move constructor should guarantee nothrow for ``reference_wrapper``\ s and function pointers2016-02 (Jacksonville)|Complete|
117`LWG2566 <https://wg21.link/LWG2566>`__Requirements on the first template parameter of container adaptors2016-02 (Jacksonville)|Complete|
118`LWG2571 <https://wg21.link/LWG2571>`__|sect|\ [map.modifiers]/2 imposes nonsensical requirement on ``insert(InputIterator, InputIterator)``\ 2016-02 (Jacksonville)|Complete|
119`LWG2572 <https://wg21.link/LWG2572>`__The remarks for ``shared_ptr::operator*``\ should apply to *cv*-qualified ``void``\ as well2016-02 (Jacksonville)|Complete|
120`LWG2574 <https://wg21.link/LWG2574>`__[fund.ts.v2] ``std::experimental::function::operator=(F&&)``\ should be constrained2016-02 (Jacksonville)|Complete|
121`LWG2575 <https://wg21.link/LWG2575>`__[fund.ts.v2] ``experimental::function::assign``\ should be removed2016-02 (Jacksonville)
122`LWG2576 <https://wg21.link/LWG2576>`__``istream_iterator``\ and ``ostream_iterator``\ should use ``std::addressof``\ 2016-02 (Jacksonville)|Complete|
123`LWG2577 <https://wg21.link/LWG2577>`__``{shared,unique}_lock``\ should use ``std::addressof``\ 2016-02 (Jacksonville)|Complete|
124`LWG2579 <https://wg21.link/LWG2579>`__Inconsistency wrt Allocators in ``basic_string``\ assignment vs. ``basic_string::assign``\ 2016-02 (Jacksonville)|Complete|
125`LWG2581 <https://wg21.link/LWG2581>`__Specialization of ``<type_traits>``\ variable templates should be prohibited2016-02 (Jacksonville)|Complete|
126`LWG2582 <https://wg21.link/LWG2582>`__|sect|\ [res.on.functions]/2's prohibition against incomplete types shouldn't apply to type traits2016-02 (Jacksonville)|Complete|
127`LWG2583 <https://wg21.link/LWG2583>`__There is no way to supply an allocator for ``basic_string(str, pos)``\ 2016-02 (Jacksonville)|Complete|
128`LWG2585 <https://wg21.link/LWG2585>`__``forward_list::resize(size_type, const value_type&)``\ effects incorrect2016-02 (Jacksonville)|Complete|
129`LWG2586 <https://wg21.link/LWG2586>`__Wrong value category used in ``scoped_allocator_adaptor::construct()``\ 2016-02 (Jacksonville)|Complete|
130`LWG2590 <https://wg21.link/LWG2590>`__Aggregate initialization for ``std::array``\ 2016-02 (Jacksonville)|Complete|
131
132`LWG2181 <https://wg21.link/LWG2181>`__Exceptions from seed sequence operations2016-06 (Oulu)|Complete|
133`LWG2309 <https://wg21.link/LWG2309>`__mutex::lock() should not throw device_or_resource_busy2016-06 (Oulu)|Complete|
134`LWG2310 <https://wg21.link/LWG2310>`__Public exposition only member in std::array2016-06 (Oulu)|Complete|
135`LWG2312 <https://wg21.link/LWG2312>`__tuple's constructor constraints need to be phrased more precisely2016-06 (Oulu)|Complete|
136`LWG2328 <https://wg21.link/LWG2328>`__Rvalue stream extraction should use perfect forwarding2016-06 (Oulu)|Complete|
137`LWG2393 <https://wg21.link/LWG2393>`__std::function's Callable definition is broken2016-06 (Oulu)|Complete|
138`LWG2422 <https://wg21.link/LWG2422>`__``std::numeric_limits<T>::is_modulo``\ description: "most machines" errata2016-06 (Oulu)|Complete|
139`LWG2426 <https://wg21.link/LWG2426>`__Issue about compare_exchange2016-06 (Oulu)|Complete|
140`LWG2436 <https://wg21.link/LWG2436>`__Comparators for associative containers should always be CopyConstructible2016-06 (Oulu)|Complete|
141`LWG2441 <https://wg21.link/LWG2441>`__Exact-width atomic typedefs should be provided2016-06 (Oulu)|Complete|
142`LWG2451 <https://wg21.link/LWG2451>`__[fund.ts.v2] optional should 'forward' T's implicit conversions2016-06 (Oulu)|Nothing To Do|
143`LWG2509 <https://wg21.link/LWG2509>`__[fund.ts.v2] any_cast doesn't work with rvalue reference targets and cannot move with a value target2016-06 (Oulu)|Complete|
144`LWG2516 <https://wg21.link/LWG2516>`__[fund.ts.v2] Public "exposition only" members in observer_ptr2016-06 (Oulu)|Complete|18
145`LWG2542 <https://wg21.link/LWG2542>`__Missing const requirements for associative containers2016-06 (Oulu)
146`LWG2549 <https://wg21.link/LWG2549>`__Tuple EXPLICIT constructor templates that take tuple parameters end up taking references to temporaries and will create dangling references2016-06 (Oulu)|Complete|
147`LWG2550 <https://wg21.link/LWG2550>`__Wording of unordered container's clear() method complexity2016-06 (Oulu)|Complete|
148`LWG2551 <https://wg21.link/LWG2551>`__[fund.ts.v2] "Exception safety" cleanup in library fundamentals required2016-06 (Oulu)|Complete|
149`LWG2555 <https://wg21.link/LWG2555>`__[fund.ts.v2] No handling for over-aligned types in optional2016-06 (Oulu)|Complete|
150`LWG2573 <https://wg21.link/LWG2573>`__[fund.ts.v2] std::hash<std::experimental::shared_ptr> does not work for arrays2016-06 (Oulu)
151`LWG2596 <https://wg21.link/LWG2596>`__vector::data() should use addressof2016-06 (Oulu)|Complete|
152`LWG2667 <https://wg21.link/LWG2667>`__path::root_directory() description is confusing2016-06 (Oulu)|Complete|
153`LWG2669 <https://wg21.link/LWG2669>`__recursive_directory_iterator effects refers to non-existent functions2016-06 (Oulu)|Complete|
154`LWG2670 <https://wg21.link/LWG2670>`__system_complete refers to undefined variable 'base'2016-06 (Oulu)|Complete|
155`LWG2671 <https://wg21.link/LWG2671>`__Errors in Copy2016-06 (Oulu)|Complete|
156`LWG2673 <https://wg21.link/LWG2673>`__status() effects cannot be implemented as specified2016-06 (Oulu)|Complete|
157`LWG2674 <https://wg21.link/LWG2674>`__Bidirectional iterator requirement on path::iterator is very expensive2016-06 (Oulu)|Complete|
158`LWG2683 <https://wg21.link/LWG2683>`__filesystem::copy() says "no effects"2016-06 (Oulu)|Complete|
159`LWG2684 <https://wg21.link/LWG2684>`__priority_queue lacking comparator typedef2016-06 (Oulu)|Complete|
160`LWG2685 <https://wg21.link/LWG2685>`__shared_ptr deleters must not throw on move construction2016-06 (Oulu)|Complete|
161`LWG2687 <https://wg21.link/LWG2687>`__{inclusive,exclusive}_scan misspecified2016-06 (Oulu)|Complete|
162`LWG2688 <https://wg21.link/LWG2688>`__clamp misses preconditions and has extraneous condition on result2016-06 (Oulu)|Complete|
163`LWG2689 <https://wg21.link/LWG2689>`__Parallel versions of std::copy and std::move shouldn't be in order2016-06 (Oulu)|Nothing To Do|
164`LWG2698 <https://wg21.link/LWG2698>`__Effect of assign() on iterators/pointers/references2016-06 (Oulu)|Complete|
165`LWG2704 <https://wg21.link/LWG2704>`__recursive_directory_iterator's members should require '``*this`` is dereferenceable'2016-06 (Oulu)|Complete|
166`LWG2706 <https://wg21.link/LWG2706>`__Error reporting for recursive_directory_iterator::pop() is under-specified2016-06 (Oulu)|Complete|
167`LWG2707 <https://wg21.link/LWG2707>`__path construction and assignment should have "string_type&&" overloads2016-06 (Oulu)|Complete|
168`LWG2709 <https://wg21.link/LWG2709>`__offsetof is unnecessarily imprecise2016-06 (Oulu)|Nothing To Do|
169`LWG2710 <https://wg21.link/LWG2710>`__"Effects: Equivalent to ..." doesn't count "Synchronization:" as determined semantics2016-06 (Oulu)|Complete|
170`LWG2711 <https://wg21.link/LWG2711>`__path is convertible from approximately everything under the sun2016-06 (Oulu)|Complete|
171`LWG2716 <https://wg21.link/LWG2716>`__Specification of shuffle and sample disallows lvalue URNGs2016-06 (Oulu)|Complete|
172`LWG2718 <https://wg21.link/LWG2718>`__Parallelism bug in [algorithms.parallel.exec] p22016-06 (Oulu)
173`LWG2719 <https://wg21.link/LWG2719>`__permissions function should not be noexcept due to narrow contract2016-06 (Oulu)|Complete|
174`LWG2720 <https://wg21.link/LWG2720>`__permissions function incorrectly specified for symlinks2016-06 (Oulu)|Complete|
175`LWG2721 <https://wg21.link/LWG2721>`__remove_all has incorrect post conditions2016-06 (Oulu)|Complete|
176`LWG2723 <https://wg21.link/LWG2723>`__Do directory_iterator and recursive_directory_iterator become the end iterator upon error?2016-06 (Oulu)|Complete|
177`LWG2724 <https://wg21.link/LWG2724>`__The protected virtual member functions of memory_resource should be private2016-06 (Oulu)|Complete|16
178`LWG2725 <https://wg21.link/LWG2725>`__filesystem::exists(const path&, error_code&) error reporting2016-06 (Oulu)|Complete|
179`LWG2726 <https://wg21.link/LWG2726>`__``[recursive_]directory_iterator::increment(error_code&)`` is underspecified2016-06 (Oulu)|Complete|
180`LWG2727 <https://wg21.link/LWG2727>`__Parallel algorithms with constexpr specifier2016-06 (Oulu)
181`LWG2728 <https://wg21.link/LWG2728>`__status(p).permissions() and symlink_status(p).permissions() are not specified2016-06 (Oulu)|Complete|
182
183`LWG2062 <https://wg21.link/LWG2062>`__Effect contradictions w/o no-throw guarantee of std::function swaps2016-11 (Issaquah)|Complete|
184`LWG2166 <https://wg21.link/LWG2166>`__Heap property underspecified?2016-11 (Issaquah)
185`LWG2221 <https://wg21.link/LWG2221>`__No formatted output operator for nullptr2016-11 (Issaquah)|Complete|
186`LWG2223 <https://wg21.link/LWG2223>`__shrink_to_fit effect on iterator validity2016-11 (Issaquah)|Complete|
187`LWG2261 <https://wg21.link/LWG2261>`__Are containers required to use their 'pointer' type internally?2016-11 (Issaquah)
188`LWG2394 <https://wg21.link/LWG2394>`__locale::name specification unclear - what is implementation-defined?2016-11 (Issaquah)|Complete|
189`LWG2460 <https://wg21.link/LWG2460>`__LWG issue 2408 and value categories2016-11 (Issaquah)|Complete|
190`LWG2468 <https://wg21.link/LWG2468>`__Self-move-assignment of library types2016-11 (Issaquah)
191`LWG2475 <https://wg21.link/LWG2475>`__Allow overwriting of std::basic_string terminator with charT() to allow cleaner interoperation with legacy APIs2016-11 (Issaquah)|Complete|
192`LWG2503 <https://wg21.link/LWG2503>`__multiline option should be added to syntax_option_type2016-11 (Issaquah)|Complete|
193`LWG2510 <https://wg21.link/LWG2510>`__Tag types should not be DefaultConstructible2016-11 (Issaquah)|Complete|
194`LWG2514 <https://wg21.link/LWG2514>`__Type traits must not be final2016-11 (Issaquah)|Complete|
195`LWG2518 <https://wg21.link/LWG2518>`__[fund.ts.v2] Non-member swap for propagate_const should call member swap2016-11 (Issaquah)|Complete|
196`LWG2519 <https://wg21.link/LWG2519>`__Iterator operator-= has gratuitous undefined behaviour2016-11 (Issaquah)|Complete|
197`LWG2521 <https://wg21.link/LWG2521>`__[fund.ts.v2] weak_ptr's converting move constructor should be modified as well for array support2016-11 (Issaquah)
198`LWG2525 <https://wg21.link/LWG2525>`__[fund.ts.v2] get_memory_resource should be const and noexcept2016-11 (Issaquah)
199`LWG2527 <https://wg21.link/LWG2527>`__[fund.ts.v2] ALLOCATOR_OF for function::operator= has incorrect default2016-11 (Issaquah)
200`LWG2531 <https://wg21.link/LWG2531>`__future::get should explicitly state that the shared state is released2016-11 (Issaquah)|Nothing To Do|
201`LWG2534 <https://wg21.link/LWG2534>`__Constrain rvalue stream operators2016-11 (Issaquah)|Complete|
202`LWG2536 <https://wg21.link/LWG2536>`__What should <complex.h> do?2016-11 (Issaquah)|Complete|
203`LWG2540 <https://wg21.link/LWG2540>`__unordered_multimap::insert hint iterator2016-11 (Issaquah)|Complete|
204`LWG2543 <https://wg21.link/LWG2543>`__LWG 2148 (hash support for enum types) seems under-specified2016-11 (Issaquah)|Complete|
205`LWG2544 <https://wg21.link/LWG2544>`__``istreambuf_iterator(basic_streambuf<charT, traits>* s)``\ effects unclear when s is 02016-11 (Issaquah)|Complete|
206`LWG2556 <https://wg21.link/LWG2556>`__Wide contract for future::share()2016-11 (Issaquah)|Complete|
207`LWG2562 <https://wg21.link/LWG2562>`__Consistent total ordering of pointers by comparison functors2016-11 (Issaquah)
208`LWG2567 <https://wg21.link/LWG2567>`__Specification of logical operator traits uses BaseCharacteristic, which is defined only for UnaryTypeTraits and BinaryTypeTraits2016-11 (Issaquah)|Complete|
209`LWG2568 <https://wg21.link/LWG2568>`__[fund.ts.v2] Specification of logical operator traits uses BaseCharacteristic, which is defined only for UnaryTypeTraits and BinaryTypeTraits2016-11 (Issaquah)|Complete|15
210`LWG2569 <https://wg21.link/LWG2569>`__conjunction and disjunction requirements are too strict2016-11 (Issaquah)|Complete|15
211`LWG2570 <https://wg21.link/LWG2570>`__[fund.ts.v2] conjunction and disjunction requirements are too strict2016-11 (Issaquah)
212`LWG2578 <https://wg21.link/LWG2578>`__Iterator requirements should reference iterator traits2016-11 (Issaquah)|Complete|
213`LWG2584 <https://wg21.link/LWG2584>`__<regex> ECMAScript IdentityEscape is ambiguous2016-11 (Issaquah)
214`LWG2587 <https://wg21.link/LWG2587>`__"Convertible to bool" requirement in conjunction and disjunction2016-11 (Issaquah)|Nothing To Do|Resolved by `LWG2567 <https://wg21.link/LWG2567>`__
215`LWG2588 <https://wg21.link/LWG2588>`__[fund.ts.v2] "Convertible to bool" requirement in conjunction and disjunction2016-11 (Issaquah)|Nothing To Do|Resolved by `LWG2568 <https://wg21.link/LWG2568>`__
216`LWG2589 <https://wg21.link/LWG2589>`__match_results can't satisfy the requirements of a container2016-11 (Issaquah)|Complete|
217`LWG2591 <https://wg21.link/LWG2591>`__std::function's member template target() should not lead to undefined behaviour2016-11 (Issaquah)|Complete|
218`LWG2598 <https://wg21.link/LWG2598>`__addressof works on temporaries2016-11 (Issaquah)|Complete|
219`LWG2664 <https://wg21.link/LWG2664>`__operator/ (and other append) semantics not useful if argument has root2016-11 (Issaquah)|Complete|
220`LWG2665 <https://wg21.link/LWG2665>`__remove_filename() post condition is incorrect2016-11 (Issaquah)|Complete|
221`LWG2672 <https://wg21.link/LWG2672>`__Should ``is_empty``\ use error_code in its specification?2016-11 (Issaquah)|Complete|
222`LWG2678 <https://wg21.link/LWG2678>`__std::filesystem enum classes overspecified2016-11 (Issaquah)|Complete|
223`LWG2679 <https://wg21.link/LWG2679>`__Inconsistent Use of Effects and Equivalent To2016-11 (Issaquah)|Complete|
224`LWG2680 <https://wg21.link/LWG2680>`__Add "Equivalent to" to filesystem2016-11 (Issaquah)|Complete|
225`LWG2681 <https://wg21.link/LWG2681>`__filesystem::copy() cannot copy symlinks2016-11 (Issaquah)|Complete|
226`LWG2686 <https://wg21.link/LWG2686>`__Why is std::hash specialized for error_code, but not error_condition?2016-11 (Issaquah)|Complete|
227`LWG2694 <https://wg21.link/LWG2694>`__Application of LWG 436 accidentally deleted definition of "facet"2016-11 (Issaquah)|Complete|
228`LWG2696 <https://wg21.link/LWG2696>`__Interaction between make_shared and enable_shared_from_this is underspecified2016-11 (Issaquah)|Nothing To Do|
229`LWG2699 <https://wg21.link/LWG2699>`__Missing restriction in [numeric.requirements]2016-11 (Issaquah)|Complete|
230`LWG2712 <https://wg21.link/LWG2712>`__copy_file(from, to, ...) has a number of unspecified error conditions2016-11 (Issaquah)|Complete|
231`LWG2722 <https://wg21.link/LWG2722>`__equivalent incorrectly specifies throws clause2016-11 (Issaquah)|Complete|
232`LWG2729 <https://wg21.link/LWG2729>`__Missing SFINAE on std::pair::operator=2016-11 (Issaquah)|Complete|
233`LWG2732 <https://wg21.link/LWG2732>`__Questionable specification of path::operator/= and path::append2016-11 (Issaquah)|Complete|
234`LWG2733 <https://wg21.link/LWG2733>`__[fund.ts.v2] gcd / lcm and bool2016-11 (Issaquah)|Complete|
235`LWG2735 <https://wg21.link/LWG2735>`__std::abs(short), std::abs(signed char) and others should return int instead of double in order to be compatible with C++98 and C2016-11 (Issaquah)|Complete|
236`LWG2736 <https://wg21.link/LWG2736>`__nullopt_t insufficiently constrained2016-11 (Issaquah)|Complete|
237`LWG2738 <https://wg21.link/LWG2738>`__``is_constructible``\ with void types2016-11 (Issaquah)|Complete|
238`LWG2739 <https://wg21.link/LWG2739>`__Issue with time_point non-member subtraction with an unsigned duration2016-11 (Issaquah)|Complete|
239`LWG2740 <https://wg21.link/LWG2740>`__constexpr optional<T>::operator->2016-11 (Issaquah)|Complete|
240`LWG2742 <https://wg21.link/LWG2742>`__Inconsistent string interface taking string_view2016-11 (Issaquah)|Complete|
241`LWG2744 <https://wg21.link/LWG2744>`__any's in_place constructors2016-11 (Issaquah)|Complete|
242`LWG2745 <https://wg21.link/LWG2745>`__[fund.ts.v2] Implementability of LWG 24512016-11 (Issaquah)|Complete|
243`LWG2747 <https://wg21.link/LWG2747>`__Possibly redundant std::move in [alg.foreach]2016-11 (Issaquah)|Complete|
244`LWG2748 <https://wg21.link/LWG2748>`__swappable traits for optionals2016-11 (Issaquah)|Complete|
245`LWG2749 <https://wg21.link/LWG2749>`__swappable traits for variants2016-11 (Issaquah)|Complete|
246`LWG2750 <https://wg21.link/LWG2750>`__[fund.ts.v2] LWG 2451 conversion constructor constraint2016-11 (Issaquah)|Nothing To Do|
247`LWG2752 <https://wg21.link/LWG2752>`__"Throws:" clauses of async and packaged_task are unimplementable2016-11 (Issaquah)|Nothing To Do|
248`LWG2755 <https://wg21.link/LWG2755>`__[string.view.io] uses non-existent basic_string_view::to_string function2016-11 (Issaquah)|Complete|
249`LWG2756 <https://wg21.link/LWG2756>`__C++ WP optional<T> should 'forward' T's implicit conversions2016-11 (Issaquah)|Complete|
250`LWG2758 <https://wg21.link/LWG2758>`__std::string{}.assign("ABCDE", 0, 1) is ambiguous2016-11 (Issaquah)|Complete|
251`LWG2759 <https://wg21.link/LWG2759>`__gcd / lcm and bool for the WP2016-11 (Issaquah)|Complete|
252`LWG2760 <https://wg21.link/LWG2760>`__non-const basic_string::data should not invalidate iterators2016-11 (Issaquah)|Complete|
253`LWG2765 <https://wg21.link/LWG2765>`__Did LWG 1123 go too far?2016-11 (Issaquah)|Complete|
254`LWG2767 <https://wg21.link/LWG2767>`__not_fn call_wrapper can form invalid types2016-11 (Issaquah)|Complete|
255`LWG2770 <https://wg21.link/LWG2770>`__``tuple_size<const T>`` specialization is not SFINAE compatible and breaks decomposition declarations2016-11 (Issaquah)|Complete|21
256`LWG2771 <https://wg21.link/LWG2771>`__Broken Effects of some basic_string::compare functions in terms of basic_string_view2016-11 (Issaquah)|Complete|
257`LWG2773 <https://wg21.link/LWG2773>`__Making std::ignore constexpr2016-11 (Issaquah)|Complete|
258`LWG2777 <https://wg21.link/LWG2777>`__basic_string_view::copy should use char_traits::copy2016-11 (Issaquah)|Complete|
259`LWG2778 <https://wg21.link/LWG2778>`__basic_string_view is missing constexpr2016-11 (Issaquah)|Complete|
260
261`LWG2260 <https://wg21.link/LWG2260>`__Missing requirement for Allocator::pointer2017-02 (Kona)|Complete|
262`LWG2676 <https://wg21.link/LWG2676>`__Provide filesystem::path overloads for File-based streams2017-02 (Kona)|Complete|
263`LWG2768 <https://wg21.link/LWG2768>`__any_cast and move semantics2017-02 (Kona)|Complete|
264`LWG2769 <https://wg21.link/LWG2769>`__Redundant const in the return type of any_cast(const any&)2017-02 (Kona)|Complete|
265`LWG2781 <https://wg21.link/LWG2781>`__Contradictory requirements for std::function and std::reference_wrapper2017-02 (Kona)|Complete|
266`LWG2782 <https://wg21.link/LWG2782>`__scoped_allocator_adaptor constructors must be constrained2017-02 (Kona)|Complete|
267`LWG2784 <https://wg21.link/LWG2784>`__Resolution to LWG 2484 is missing "otherwise, no effects" and is hard to parse2017-02 (Kona)|Complete|
268`LWG2785 <https://wg21.link/LWG2785>`__quoted should work with basic_string_view2017-02 (Kona)|Complete|
269`LWG2786 <https://wg21.link/LWG2786>`__Annex C should mention shared_ptr changes for array support2017-02 (Kona)|Complete|
270`LWG2787 <https://wg21.link/LWG2787>`__|sect|\ [file_status.cons] doesn't match class definition2017-02 (Kona)|Complete|
271`LWG2788 <https://wg21.link/LWG2788>`__basic_string range mutators unintentionally require a default constructible allocator2017-02 (Kona)|Complete|
272`LWG2789 <https://wg21.link/LWG2789>`__Equivalence of contained objects2017-02 (Kona)|Complete|
273`LWG2790 <https://wg21.link/LWG2790>`__Missing specification of istreambuf_iterator::operator->2017-02 (Kona)|Complete|
274`LWG2794 <https://wg21.link/LWG2794>`__Missing requirements for allocator pointers2017-02 (Kona)|Nothing To Do|
275`LWG2795 <https://wg21.link/LWG2795>`__|sect|\ [global.functions] provides incorrect example of ADL use2017-02 (Kona)|Complete|
276`LWG2796 <https://wg21.link/LWG2796>`__tuple should be a literal type2017-02 (Kona)|Complete|
277`LWG2801 <https://wg21.link/LWG2801>`__Default-constructibility of unique_ptr2017-02 (Kona)|Complete|
278`LWG2802 <https://wg21.link/LWG2802>`__shared_ptr constructor requirements for a deleter2017-02 (Kona)|Complete|
279`LWG2804 <https://wg21.link/LWG2804>`__Unconditional constexpr default constructor for istream_iterator2017-02 (Kona)|Complete|
280`LWG2806 <https://wg21.link/LWG2806>`__Base class of bad_optional_access2017-02 (Kona)|Complete|
281`LWG2807 <https://wg21.link/LWG2807>`__std::invoke should use ``std::is_nothrow_callable``\ 2017-02 (Kona)|Complete|
282`LWG2812 <https://wg21.link/LWG2812>`__Range access is available with <string_view>2017-02 (Kona)|Complete|
283`LWG2824 <https://wg21.link/LWG2824>`__list::sort should say that the order of elements is unspecified if an exception is thrown2017-02 (Kona)|Complete|
284`LWG2826 <https://wg21.link/LWG2826>`__string_view iterators use old wording2017-02 (Kona)|Complete|
285`LWG2834 <https://wg21.link/LWG2834>`__Resolution LWG 2223 is missing wording about end iterators2017-02 (Kona)|Complete|
286`LWG2835 <https://wg21.link/LWG2835>`__LWG 2536 seems to misspecify <tgmath.h>2017-02 (Kona)|Complete|
287`LWG2837 <https://wg21.link/LWG2837>`__gcd and lcm should support a wider range of input values2017-02 (Kona)|Complete|
288`LWG2838 <https://wg21.link/LWG2838>`__is_literal_type specification needs a little cleanup2017-02 (Kona)|Complete|
289`LWG2842 <https://wg21.link/LWG2842>`__in_place_t check for optional::optional(U&&) should decay U2017-02 (Kona)|Complete|
290`LWG2850 <https://wg21.link/LWG2850>`__std::function move constructor does unnecessary work2017-02 (Kona)|Complete|
291`LWG2853 <https://wg21.link/LWG2853>`__Possible inconsistency in specification of erase in [vector.modifiers]2017-02 (Kona)|Complete|
292`LWG2855 <https://wg21.link/LWG2855>`__std::throw_with_nested("string_literal")2017-02 (Kona)|Complete|
293`LWG2857 <https://wg21.link/LWG2857>`__{variant,optional,any}::emplace should return the constructed value2017-02 (Kona)|Complete|
294`LWG2861 <https://wg21.link/LWG2861>`__basic_string should require that charT match traits::char_type2017-02 (Kona)|Complete|
295`LWG2866 <https://wg21.link/LWG2866>`__Incorrect derived classes constraints2017-02 (Kona)|Nothing To Do|
296`LWG2868 <https://wg21.link/LWG2868>`__Missing specification of bad_any_cast::what()2017-02 (Kona)|Complete|
297`LWG2872 <https://wg21.link/LWG2872>`__Add definition for direct-non-list-initialization2017-02 (Kona)|Complete|
298`LWG2873 <https://wg21.link/LWG2873>`__Add noexcept to several shared_ptr related functions2017-02 (Kona)|Complete|
299`LWG2874 <https://wg21.link/LWG2874>`__Constructor ``shared_ptr::shared_ptr(Y*)``\ should be constrained2017-02 (Kona)|Complete|13
300`LWG2875 <https://wg21.link/LWG2875>`__shared_ptr::shared_ptr(Y\*, D, [|hellip|\ ]) constructors should be constrained2017-02 (Kona)|Complete|
301`LWG2876 <https://wg21.link/LWG2876>`__``shared_ptr::shared_ptr(const weak_ptr<Y>&)``\ constructor should be constrained2017-02 (Kona)|Complete|14
302`LWG2878 <https://wg21.link/LWG2878>`__Missing DefaultConstructible requirement for istream_iterator default constructor2017-02 (Kona)|Complete|
303`LWG2890 <https://wg21.link/LWG2890>`__The definition of 'object state' applies only to class types2017-02 (Kona)|Complete|
304`LWG2900 <https://wg21.link/LWG2900>`__The copy and move constructors of optional are not constexpr2017-02 (Kona)|Complete|
305`LWG2903 <https://wg21.link/LWG2903>`__The form of initialization for the emplace-constructors is not specified2017-02 (Kona)|Complete|
306`LWG2904 <https://wg21.link/LWG2904>`__Make variant move-assignment more exception safe2017-02 (Kona)|Complete|
307`LWG2905 <https://wg21.link/LWG2905>`__is_constructible_v<unique_ptr<P, D>, P, D const &> should be false when D is not copy constructible2017-02 (Kona)|Complete|
308`LWG2908 <https://wg21.link/LWG2908>`__The less-than operator for shared pointers could do more2017-02 (Kona)|Complete|
309`LWG2911 <https://wg21.link/LWG2911>`__An is_aggregate type trait is needed2017-02 (Kona)|Complete|
310`LWG2921 <https://wg21.link/LWG2921>`__packaged_task and type-erased allocators2017-02 (Kona)|Complete|20Originally implemented in LLVM 6 but reverted later. Old documentation incorrectly said it was implemented.
311`LWG2934 <https://wg21.link/LWG2934>`__optional<const T> doesn't compare with T2017-02 (Kona)|Complete|
312
313`LWG2901 <https://wg21.link/LWG2901>`__Variants cannot properly support allocators2017-07 (Toronto)|Complete|
314`LWG2955 <https://wg21.link/LWG2955>`__``to_chars / from_chars``\ depend on ``std::string``\ 2017-07 (Toronto)|Nothing To Do|Resolved by `P0682R1 <https://wg21.link/P0682R1>`__
315`LWG2956 <https://wg21.link/LWG2956>`__``filesystem::canonical()``\ still defined in terms of ``absolute(p, base)``\ 2017-07 (Toronto)|Complete|