| "Issue #","Issue Name","Meeting","Status","First released version" |
| "`2070 <https://wg21.link/LWG2070>`__","``allocate_shared``\ should use ``allocator_traits<A>::construct``\ ","Toronto","Resolved by `P0674R1 <https://wg21.link/P0674R1>`__","" |
| "`2444 <https://wg21.link/LWG2444>`__","Inconsistent complexity for ``std::sort_heap``\ ","Toronto","","" |
| "`2593 <https://wg21.link/LWG2593>`__","Moved-from state of Allocators","Toronto","","" |
| "`2597 <https://wg21.link/LWG2597>`__","``std::log``\ misspecified for complex numbers","Toronto","","" |
| "`2783 <https://wg21.link/LWG2783>`__","``stack::emplace()``\ and ``queue::emplace()``\ should return ``decltype(auto)``\ ","Toronto","|Complete|","" |
| "`2932 <https://wg21.link/LWG2932>`__","Constraints on parallel algorithm implementations are underspecified","Toronto","","" |
| "`2937 <https://wg21.link/LWG2937>`__","Is ``equivalent(""existing_thing"", ""not_existing_thing"")``\ an error","Toronto","|Complete|","" |
| "`2940 <https://wg21.link/LWG2940>`__","``result_of``\ specification also needs a little cleanup","Toronto","","" |
| "`2942 <https://wg21.link/LWG2942>`__","LWG 2873's resolution missed ``weak_ptr::owner_before``\ ","Toronto","|Complete|","" |
| "`2954 <https://wg21.link/LWG2954>`__","Specialization of the convenience variable templates should be prohibited","Toronto","|Complete|","" |
| "`2961 <https://wg21.link/LWG2961>`__","Bad postcondition for ``set_default_resource``\ ","Toronto","","" |
| "`2966 <https://wg21.link/LWG2966>`__","Incomplete resolution of US 74","Toronto","|Nothing To Do|","" |
| "`2974 <https://wg21.link/LWG2974>`__","Diagnose out of bounds ``tuple_element/variant_alternative``\ ","Toronto","|Complete|","" |
| "","","","","" |
| "`2779 <https://wg21.link/LWG2779>`__","[networking.ts] Relax requirements on buffer sequence iterators","Albuquerque","","" |
| "`2870 <https://wg21.link/LWG2870>`__","Default value of parameter theta of polar should be dependent","Albuquerque","|Complete|","" |
| "`2935 <https://wg21.link/LWG2935>`__","What should create_directories do when p already exists but is not a directory?","Albuquerque","|Nothing To Do|","" |
| "`2941 <https://wg21.link/LWG2941>`__","[thread.req.timing] wording should apply to both member and namespace-level functions","Albuquerque","|Nothing To Do|","" |
| "`2944 <https://wg21.link/LWG2944>`__","LWG 2905 accidentally removed requirement that construction of the deleter doesn't throw an exception","Albuquerque","|Nothing To Do|","" |
| "`2945 <https://wg21.link/LWG2945>`__","Order of template parameters in optional comparisons","Albuquerque","|Complete|","" |
| "`2948 <https://wg21.link/LWG2948>`__","unique_ptr does not define operator<< for stream output","Albuquerque","|Complete|","" |
| "`2950 <https://wg21.link/LWG2950>`__","std::byte operations are misspecified","Albuquerque","|Complete|","" |
| "`2952 <https://wg21.link/LWG2952>`__","iterator_traits should work for pointers to cv T","Albuquerque","|Complete|","" |
| "`2953 <https://wg21.link/LWG2953>`__","LWG 2853 should apply to deque::erase too","Albuquerque","|Complete|","" |
| "`2958 <https://wg21.link/LWG2958>`__","Moves improperly defined as deleted","Albuquerque","*We already do this*","" |
| "`2964 <https://wg21.link/LWG2964>`__","Apparently redundant requirement for dynamic_pointer_cast","Albuquerque","","" |
| "`2965 <https://wg21.link/LWG2965>`__","Non-existing path::native_string() in filesystem_error::what() specification","Albuquerque","|Nothing To Do|","" |
| "`2972 <https://wg21.link/LWG2972>`__","What is ``is_trivially_destructible_v<int>``\ ?","Albuquerque","|Complete|","" |
| "`2976 <https://wg21.link/LWG2976>`__","Dangling uses_allocator specialization for packaged_task","Albuquerque","|Complete|","" |
| "`2977 <https://wg21.link/LWG2977>`__","unordered_meow::merge() has incorrect Throws: clause","Albuquerque","|Nothing To Do|","" |
| "`2978 <https://wg21.link/LWG2978>`__","Hash support for pmr::string and friends","Albuquerque","","" |
| "`2979 <https://wg21.link/LWG2979>`__","aligned_union should require complete object types","Albuquerque","|Complete|","" |
| "`2980 <https://wg21.link/LWG2980>`__","Cannot compare_exchange empty pointers","Albuquerque","","" |
| "`2981 <https://wg21.link/LWG2981>`__","Remove redundant deduction guides from standard library","Albuquerque","","" |
| "`2982 <https://wg21.link/LWG2982>`__","Making size_type consistent in associative container deduction guides","Albuquerque","","" |
| "`2988 <https://wg21.link/LWG2988>`__","Clause 32 cleanup missed one typename","Albuquerque","","" |
| "`2993 <https://wg21.link/LWG2993>`__","reference_wrapper<T> conversion from T&&","Albuquerque","|Complete|","13.0" |
| "`2998 <https://wg21.link/LWG2998>`__","Requirements on function objects passed to {``forward_``,}list-specific algorithms","Albuquerque","|Nothing To Do|","" |
| "`3001 <https://wg21.link/LWG3001>`__","weak_ptr::element_type needs remove_extent_t","Albuquerque","","" |
| "`3024 <https://wg21.link/LWG3024>`__","variant's copies must be deleted instead of disabled via SFINAE","Albuquerque","|Complete|","" |
| "","","","","" |
| "`2164 <https://wg21.link/LWG2164>`__","What are the semantics of ``vector.emplace(vector.begin(), vector.back())``\ ?","Jacksonville","|Complete|","" |
| "`2243 <https://wg21.link/LWG2243>`__","``istream::putback``\ problem","Jacksonville","|Complete|","" |
| "`2816 <https://wg21.link/LWG2816>`__","``resize_file``\ has impossible postcondition","Jacksonville","|Nothing To Do|","" |
| "`2843 <https://wg21.link/LWG2843>`__","Unclear behavior of ``std::pmr::memory_resource::do_allocate()``\ ","Jacksonville","|Complete|","" |
| "`2849 <https://wg21.link/LWG2849>`__","Why does ``!is_regular_file(from)``\ cause ``copy_file``\ to report a ""file already exists"" error?","Jacksonville","|Nothing To Do|","" |
| "`2851 <https://wg21.link/LWG2851>`__","``std::filesystem``\ enum classes are now underspecified","Jacksonville","|Nothing To Do|","" |
| "`2946 <https://wg21.link/LWG2946>`__","LWG 2758's resolution missed further corrections","Jacksonville","|Complete|","" |
| "`2969 <https://wg21.link/LWG2969>`__","``polymorphic_allocator::construct()``\ shouldn't pass ``resource()``\ ","Jacksonville","|Complete|","" |
| "`2975 <https://wg21.link/LWG2975>`__","Missing case for ``pair``\ construction in scoped and polymorphic allocators","Jacksonville","","" |
| "`2989 <https://wg21.link/LWG2989>`__","``path``\ 's stream insertion operator lets you insert everything under the sun","Jacksonville","|Complete|","" |
| "`3000 <https://wg21.link/LWG3000>`__","``monotonic_memory_resource::do_is_equal``\ uses ``dynamic_cast``\ unnecessarily","Jacksonville","","" |
| "`3002 <https://wg21.link/LWG3002>`__","[networking.ts] ``basic_socket_acceptor::is_open()``\ isn't ``noexcept``\ ","Jacksonville","","" |
| "`3004 <https://wg21.link/LWG3004>`__","|sect|\ [string.capacity] and |sect|\ [vector.capacity] should specify time complexity for ``capacity()``\ ","Jacksonville","|Nothing To Do|","" |
| "`3005 <https://wg21.link/LWG3005>`__","Destruction order of arrays by ``make_shared/allocate_shared``\ only recommended?","Jacksonville","","" |
| "`3007 <https://wg21.link/LWG3007>`__","``allocate_shared``\ should rebind allocator to *cv*-unqualified ``value_type``\ for construction","Jacksonville","","" |
| "`3009 <https://wg21.link/LWG3009>`__","Including ``<string_view>``\ doesn't provide ``std::size/empty/data``\ ","Jacksonville","|Complete|","" |
| "`3010 <https://wg21.link/LWG3010>`__","[networking.ts] ``uses_executor``\ says ""if a type ``T::executor_type``\ exists""","Jacksonville","","" |
| "`3013 <https://wg21.link/LWG3013>`__","``(recursive_)directory_iterator``\ construction and traversal should not be ``noexcept``\ ","Jacksonville","|Complete|","" |
| "`3014 <https://wg21.link/LWG3014>`__","More ``noexcept``\ issues with filesystem operations","Jacksonville","|Complete|","" |
| "`3015 <https://wg21.link/LWG3015>`__","``copy_options::*unspecified*``\ underspecified","Jacksonville","|Nothing To Do|","" |
| "`3017 <https://wg21.link/LWG3017>`__","``list splice``\ functions should use ``addressof``\ ","Jacksonville","|Complete|","" |
| "`3020 <https://wg21.link/LWG3020>`__","[networking.ts] Remove spurious nested ``value_type``\ buffer sequence requirement","Jacksonville","","" |
| "`3026 <https://wg21.link/LWG3026>`__","``filesystem::weakly_canonical``\ still defined in terms of ``canonical(p, base)``\ ","Jacksonville","|Complete|","" |
| "`3030 <https://wg21.link/LWG3030>`__","Who shall meet the requirements of ``try_lock``\ ?","Jacksonville","|Nothing To Do|","" |
| "`3034 <https://wg21.link/LWG3034>`__","P0767R1 breaks previously-standard-layout types","Jacksonville","|Complete|","" |
| "`3035 <https://wg21.link/LWG3035>`__","``std::allocator``\ 's constructors should be ``constexpr``\ ","Jacksonville","|Complete|","" |
| "`3039 <https://wg21.link/LWG3039>`__","Unnecessary ``decay``\ in ``thread``\ and ``packaged_task``\ ","Jacksonville","|Complete|","" |
| "`3041 <https://wg21.link/LWG3041>`__","Unnecessary ``decay``\ in ``reference_wrapper``\ ","Jacksonville","|Complete|","" |
| "`3042 <https://wg21.link/LWG3042>`__","``is_literal_type_v``\ should be inline","Jacksonville","|Complete|","" |
| "`3043 <https://wg21.link/LWG3043>`__","Bogus postcondition for ``filesystem_error``\ constructor","Jacksonville","|Complete|","" |
| "`3045 <https://wg21.link/LWG3045>`__","``atomic<*floating-point*>``\ doesn't have ``value_type``\ or ``difference_type``\ ","Jacksonville","","" |
| "`3048 <https://wg21.link/LWG3048>`__","``transform_reduce(exec, first1, last1, first2, init)``\ discards execution policy","Jacksonville","","" |
| "`3051 <https://wg21.link/LWG3051>`__","Floating point classifications were inadvertently changed in P0175","Jacksonville","|Nothing To Do|","" |
| "`3075 <https://wg21.link/LWG3075>`__","``basic_string``\ needs deduction guides from ``basic_string_view``\ ","Jacksonville","|Complete|","" |
| "","","","","" |
| "`2139 <https://wg21.link/LWG2139>`__","What is a user-defined type?","Rapperswil","","" |
| "`2970 <https://wg21.link/LWG2970>`__","Return type of std::visit misspecified","Rapperswil","","" |
| "`3058 <https://wg21.link/LWG3058>`__","Parallel adjacent_difference shouldn't require creating temporaries","Rapperswil","","" |
| "`3062 <https://wg21.link/LWG3062>`__","Unnecessary decay_t in is_execution_policy_v should be remove_cvref_t","Rapperswil","","" |
| "`3067 <https://wg21.link/LWG3067>`__","recursive_directory_iterator::pop must invalidate","Rapperswil","|Nothing To Do|","" |
| "`3071 <https://wg21.link/LWG3071>`__","[networking.ts] read_until still refers to ""input sequence""","Rapperswil","|Nothing To Do|","" |
| "`3074 <https://wg21.link/LWG3074>`__","Non-member functions for valarray should only deduce from the valarray","Rapperswil","","" |
| "`3076 <https://wg21.link/LWG3076>`__","basic_string CTAD ambiguity","Rapperswil","|Complete|","" |
| "`3079 <https://wg21.link/LWG3079>`__","LWG 2935 forgot to fix the existing_p overloads of create_directory","Rapperswil","|Nothing To Do|","" |
| "`3080 <https://wg21.link/LWG3080>`__","Floating point from_chars pattern specification breaks round-tripping","Rapperswil","","" |
| "`3083 <https://wg21.link/LWG3083>`__","What should ios::iword(-1) do?","Rapperswil","|Nothing To Do|","" |
| "`3094 <https://wg21.link/LWG3094>`__","[time.duration.io]p4 makes surprising claims about encoding","Rapperswil","","" |
| "`3100 <https://wg21.link/LWG3100>`__","Unnecessary and confusing ""empty span"" wording","Rapperswil","|Nothing To Do|","" |
| "`3102 <https://wg21.link/LWG3102>`__","Clarify span iterator and ``const_iterator`` behavior","Rapperswil","|Complete|","" |
| "`3104 <https://wg21.link/LWG3104>`__","Fixing duration division","Rapperswil","|Complete|","" |
| "","","","","" |
| "`2183 <https://wg21.link/LWG2183>`__","Muddled allocator requirements for ``match_results``\ constructors","San Diego","|Complete|","" |
| "`2184 <https://wg21.link/LWG2184>`__","Muddled allocator requirements for ``match_results``\ assignments","San Diego","|Complete|","" |
| "`2412 <https://wg21.link/LWG2412>`__","``promise::set_value()``\ and ``promise::get_future()``\ should not race","San Diego","","" |
| "`2499 <https://wg21.link/LWG2499>`__","``operator>>(basic_istream&, CharT*)``\ makes it hard to avoid buffer overflows","San Diego","Resolved by P0487R1","" |
| "`2682 <https://wg21.link/LWG2682>`__","``filesystem::copy()``\ won't create a symlink to a directory","San Diego","|Nothing To Do|","" |
| "`2697 <https://wg21.link/LWG2697>`__","[concurr.ts] Behavior of ``future/shared_future``\ unwrapping constructor when given an invalid ``future``\ ","San Diego","","" |
| "`2797 <https://wg21.link/LWG2797>`__","Trait precondition violations","San Diego","Resolved by 1285R0","" |
| "`2936 <https://wg21.link/LWG2936>`__","Path comparison is defined in terms of the generic format","San Diego","|Complete|","" |
| "`2943 <https://wg21.link/LWG2943>`__","Problematic specification of the wide version of ``basic_filebuf::open``\ ","San Diego","|Nothing To Do|","" |
| "`2960 <https://wg21.link/LWG2960>`__","[fund.ts.v3] ``nonesuch``\ is insufficiently useless","San Diego","|Complete|","" |
| "`2995 <https://wg21.link/LWG2995>`__","``basic_stringbuf``\ default constructor forbids it from using SSO capacity","San Diego","","" |
| "`2996 <https://wg21.link/LWG2996>`__","Missing rvalue overloads for ``shared_ptr``\ operations","San Diego","","" |
| "`3008 <https://wg21.link/LWG3008>`__","``make_shared``\ (sub)object destruction semantics are not specified","San Diego","","" |
| "`3022 <https://wg21.link/LWG3022>`__","``is_convertible<derived*, base*>``\ may lead to ODR","San Diego","Resolved by 1285R0","" |
| "`3025 <https://wg21.link/LWG3025>`__","Map-like container deduction guides should use ``pair<Key, T>``\ , not ``pair<const Key, T>``\ ","San Diego","|Complete|","" |
| "`3031 <https://wg21.link/LWG3031>`__","Algorithms and predicates with non-const reference arguments","San Diego","","" |
| "`3037 <https://wg21.link/LWG3037>`__","``polymorphic_allocator``\ and incomplete types","San Diego","","" |
| "`3038 <https://wg21.link/LWG3038>`__","``polymorphic_allocator::allocate``\ should not allow integer overflow to create vulnerabilities","San Diego","","" |
| "`3054 <https://wg21.link/LWG3054>`__","``uninitialized_copy``\ appears to not be able to meet its exception-safety guarantee","San Diego","","" |
| "`3065 <https://wg21.link/LWG3065>`__","LWG 2989 missed that all ``path``\ 's other operators should be hidden friends as well","San Diego","|Complete|","" |
| "`3096 <https://wg21.link/LWG3096>`__","``path::lexically_relative``\ is confused by trailing slashes","San Diego","|Complete|","" |
| "`3116 <https://wg21.link/LWG3116>`__","``*OUTERMOST_ALLOC_TRAITS*``\ needs ``remove_reference_t``\ ","San Diego","","" |
| "`3122 <https://wg21.link/LWG3122>`__","``__cpp_lib_chrono_udls``\ was accidentally dropped","San Diego","|Complete|","" |
| "`3127 <https://wg21.link/LWG3127>`__","``basic_osyncstream::rdbuf``\ needs a ````const_cast````\ ","San Diego","","" |
| "`3128 <https://wg21.link/LWG3128>`__","``strstream::rdbuf``\ needs a ````const_cast````\ ","San Diego","|Nothing To Do|","" |
| "`3129 <https://wg21.link/LWG3129>`__","``regex_token_iterator``\ constructor uses wrong pointer arithmetic","San Diego","","" |
| "`3130 <https://wg21.link/LWG3130>`__","|sect|\ [input.output] needs many ``addressof``\ ","San Diego","","" |
| "`3131 <https://wg21.link/LWG3131>`__","``addressof``\ all the things","San Diego","","" |
| "`3132 <https://wg21.link/LWG3132>`__","Library needs to ban macros named ``expects``\ or ``ensures``\ ","San Diego","|Nothing To Do|","" |
| "`3134 <https://wg21.link/LWG3134>`__","[fund.ts.v3] LFTSv3 contains extraneous [meta] variable templates that should have been deleted by P09961","San Diego","Resolved by P1210R0","" |
| "`3137 <https://wg21.link/LWG3137>`__","Header for ``__cpp_lib_to_chars``\ ","San Diego","|Complete|","" |
| "`3145 <https://wg21.link/LWG3145>`__","``file_clock``\ breaks ABI for C++17 implementations","San Diego","|Complete|","" |
| "`3147 <https://wg21.link/LWG3147>`__","Definitions of ""likely"" and ""unlikely"" are likely to cause problems","San Diego","","" |
| "`3148 <https://wg21.link/LWG3148>`__","``<concepts>``\ should be freestanding","San Diego","","" |
| "`3153 <https://wg21.link/LWG3153>`__","``Common``\ and ``common_type``\ have too little in common","San Diego","","" |
| "`3154 <https://wg21.link/LWG3154>`__","``Common``\ and ``CommonReference``\ have a common defect","San Diego","","" |
| "","","","","" |
| "`3012 <https://wg21.link/LWG3012>`__","``atomic<T>``\ is unimplementable for non-``is_trivially_copy_constructible T``\ ","Kona","","" |
| "`3040 <https://wg21.link/LWG3040>`__","``basic_string_view::starts_with``\ *Effects* are incorrect","Kona","|Complete|","" |
| "`3077 <https://wg21.link/LWG3077>`__","``(push|emplace)_back``\ should invalidate the ``end``\ iterator","Kona","|Nothing To Do|","" |
| "`3087 <https://wg21.link/LWG3087>`__","One final ``&x``\ in |sect|\ [list.ops]","Kona","|Nothing To Do|","" |
| "`3101 <https://wg21.link/LWG3101>`__","``span``\ 's ``Container``\ constructors need another constraint","Kona","|Complete|","" |
| "`3112 <https://wg21.link/LWG3112>`__","``system_error``\ and ``filesystem_error``\ constructors taking a ``string``\ may not be able to meet their postconditions","Kona","","" |
| "`3119 <https://wg21.link/LWG3119>`__","Program-definedness of closure types","Kona","|Nothing To Do|","" |
| "`3133 <https://wg21.link/LWG3133>`__","Modernizing numeric type requirements","Kona","","" |
| "`3144 <https://wg21.link/LWG3144>`__","``span``\ does not have a ````const_pointer````\ typedef","Kona","|Complete|","" |
| "`3173 <https://wg21.link/LWG3173>`__","Enable CTAD for *``ref-view``*\ ","Kona","","" |
| "`3179 <https://wg21.link/LWG3179>`__","``subrange``\ should always model ``Range``\ ","Kona","","" |
| "`3180 <https://wg21.link/LWG3180>`__","Inconsistently named return type for ``ranges::minmax_element``\ ","Kona","","" |
| "`3182 <https://wg21.link/LWG3182>`__","Specification of ``Same``\ could be clearer","Kona","","" |
| "","","","","" |
| "`2899 <https://wg21.link/LWG2899>`__","``is_(nothrow_)move_constructible``\ and ``tuple``\ , ``optional``\ and ``unique_ptr``\ ","Cologne","","" |
| "`3055 <https://wg21.link/LWG3055>`__","``path::operator+=(*single-character*)``\ misspecified","Cologne","|Complete|","7.0" |
| "`3158 <https://wg21.link/LWG3158>`__","``tuple(allocator_arg_t, const Alloc&)``\ should be conditionally explicit","Cologne","","" |
| "`3169 <https://wg21.link/LWG3169>`__","``ranges``\ permutation generators discard useful information","Cologne","","" |
| "`3183 <https://wg21.link/LWG3183>`__","Normative permission to specialize Ranges variable templates","Cologne","","" |
| "`3184 <https://wg21.link/LWG3184>`__","Inconsistencies in ``bind_front``\ wording","Cologne","","" |
| "`3185 <https://wg21.link/LWG3185>`__","Uses-allocator construction functions missing ``constexpr``\ and ``noexcept``\ ","Cologne","","" |
| "`3186 <https://wg21.link/LWG3186>`__","``ranges``\ removal, partition, and ``partial_sort_copy``\ algorithms discard useful information","Cologne","","" |
| "`3187 <https://wg21.link/LWG3187>`__","`P0591R4 <https://wg21.link/p0591r4>`__ reverted DR 2586 fixes to ``scoped_allocator_adaptor::construct()``\ ","Cologne","","" |
| "`3191 <https://wg21.link/LWG3191>`__","``std::ranges::shuffle``\ synopsis does not match algorithm definition","Cologne","","" |
| "`3196 <https://wg21.link/LWG3196>`__","``std::optional<T>``\ is ill-formed is ``T``\ is an array","Cologne","|Complete|","" |
| "`3198 <https://wg21.link/LWG3198>`__","Bad constraint on ``std::span::span()``\ ","Cologne","|Complete|","" |
| "`3199 <https://wg21.link/LWG3199>`__","``istream >> bitset<0>``\ fails","Cologne","","" |
| "`3202 <https://wg21.link/LWG3202>`__","P0318R1 was supposed to be revised","Cologne","|Complete|","" |
| "`3206 <https://wg21.link/LWG3206>`__","``year_month_day``\ conversion to ``sys_days``\ uses not-existing member function","Cologne","|Complete|","" |
| "`3208 <https://wg21.link/LWG3208>`__","``Boolean``\ 's expression requirements are ordered inconsistently","Cologne","|Nothing To Do|","" |
| "`3209 <https://wg21.link/LWG3209>`__","Expression in ``year::ok()``\ returns clause is ill-formed","Cologne","|Complete|","" |
| "","","","","" |
| "`3231 <https://wg21.link/LWG3231>`__","``year_month_day_last::day``\ specification does not cover ``!ok()``\ values","Belfast","|Nothing To Do|","" |
| "`3225 <https://wg21.link/LWG3225>`__","``zoned_time``\ converting constructor shall not be ``noexcept``\ ","Belfast","","" |
| "`3190 <https://wg21.link/LWG3190>`__","``std::allocator::allocate``\ sometimes returns too little storage","Belfast","","" |
| "`3218 <https://wg21.link/LWG3218>`__","Modifier for ``%d``\ parse flag does not match POSIX and ``format``\ specification","Belfast","","" |
| "`3224 <https://wg21.link/LWG3224>`__","``zoned_time``\ constructor from ``TimeZonePtr``\ does not specify initialization of ``tp_``\ ","Belfast","","" |
| "`3230 <https://wg21.link/LWG3230>`__","Format specifier ``%y/%Y``\ is missing locale alternative versions","Belfast","","" |
| "`3232 <https://wg21.link/LWG3232>`__","Inconsistency in ``zoned_time``\ deduction guides","Belfast","","" |
| "`3222 <https://wg21.link/LWG3222>`__","P0574R1 introduced preconditions on non-existent parameters","Belfast","","" |
| "`3221 <https://wg21.link/LWG3221>`__","Result of ``year_month``\ arithmetic with ``months``\ is ambiguous","Belfast","|Complete|","8.0" |
| "`3235 <https://wg21.link/LWG3235>`__","``parse``\ manipulator without abbreviation is not callable","Belfast","","" |
| "`3246 <https://wg21.link/LWG3246>`__","What are the constraints on the template parameter of ``basic_format_arg``\ ?","Belfast","","" |
| "`3253 <https://wg21.link/LWG3253>`__","``basic_syncbuf::basic_syncbuf()``\ should not be explicit","Belfast","","" |
| "`3245 <https://wg21.link/LWG3245>`__","Unnecessary restriction on ``'%p'``\ parse specifier","Belfast","","" |
| "`3244 <https://wg21.link/LWG3244>`__","Constraints for ``Source``\ in |sect|\ [fs.path.req] insufficiently constrainty","Belfast","","" |
| "`3241 <https://wg21.link/LWG3241>`__","``chrono-spec``\ grammar ambiguity in |sect|\ [time.format]","Belfast","","" |
| "`3257 <https://wg21.link/LWG3257>`__","Missing feature testing macro update from P0858","Belfast","","" |
| "`3256 <https://wg21.link/LWG3256>`__","Feature testing macro for ``constexpr``\ algorithms","Belfast","|Complete|","13.0" |
| "`3273 <https://wg21.link/LWG3273>`__","Specify ``weekday_indexed``\ to range of ``[0, 7]``\ ","Belfast","","" |
| "`3070 <https://wg21.link/LWG3070>`__","``path::lexically_relative``\ causes surprising results if a filename can also be a *root-name*","Belfast","","" |
| "`3266 <https://wg21.link/LWG3266>`__","``to_chars(bool)``\ should be deleted","Belfast","","" |
| "`3272 <https://wg21.link/LWG3272>`__","``%I%p``\ should parse/format ``duration``\ since midnight","Belfast","","" |
| "`3259 <https://wg21.link/LWG3259>`__","The definition of *constexpr iterators* should be adjusted","Belfast","","" |
| "`3103 <https://wg21.link/LWG3103>`__","Errors in taking subview of ``span``\ should be ill-formed where possible","Belfast","","" |
| "`3274 <https://wg21.link/LWG3274>`__","Missing feature test macro for ``<span>``\ ","Belfast","","" |
| "`3276 <https://wg21.link/LWG3276>`__","Class ``split_view::outer_iterator::value_type``\ should inherit from ``view_interface``\ ","Belfast","","" |
| "`3277 <https://wg21.link/LWG3277>`__","Pre-increment on prvalues is not a requirement of ``weakly_incrementable``\ ","Belfast","","" |
| "`3149 <https://wg21.link/LWG3149>`__","``DefaultConstructible``\ should require default initialization","Belfast","|Complete|","13.0" |
| "","","","","" |
| "`1203 <https://wg21.link/LWG1203>`__","More useful rvalue stream insertion","Prague","|Complete|","12.0" |
| "`2859 <https://wg21.link/LWG2859>`__","Definition of *reachable* in [ptr.launder] misses pointer arithmetic from pointer-interconvertible object","Prague","","" |
| "`3018 <https://wg21.link/LWG3018>`__","``shared_ptr``\ of function type","Prague","","" |
| "`3050 <https://wg21.link/LWG3050>`__","Conversion specification problem in ``chrono::duration``\ constructor","Prague","","" |
| "`3141 <https://wg21.link/LWG3141>`__","``CopyConstructible``\ doesn't preserve source values","Prague","","" |
| "`3150 <https://wg21.link/LWG3150>`__","``UniformRandomBitGenerator``\ should validate ``min``\ and ``max``\ ","Prague","","" |
| "`3175 <https://wg21.link/LWG3175>`__","The ``CommonReference``\ requirement of concept ``SwappableWith``\ is not satisfied in the example","Prague","","" |
| "`3194 <https://wg21.link/LWG3194>`__","``ConvertibleTo``\ prose does not match code","Prague","","" |
| "`3200 <https://wg21.link/LWG3200>`__","``midpoint``\ should not constrain ``T``\ is complete","Prague","|Nothing To Do|","" |
| "`3201 <https://wg21.link/LWG3201>`__","``lerp``\ should be marked as ``noexcept``\ ","Prague","|Complete|","" |
| "`3226 <https://wg21.link/LWG3226>`__","``zoned_time``\ constructor from ``string_view``\ should accept ``zoned_time<Duration2, TimeZonePtr2>``\ ","Prague","","" |
| "`3233 <https://wg21.link/LWG3233>`__","Broken requirements for ``shared_ptr``\ converting constructors","Prague","","" |
| "`3237 <https://wg21.link/LWG3237>`__","LWG 3038 and 3190 have inconsistent PRs","Prague","","" |
| "`3238 <https://wg21.link/LWG3238>`__","Insufficiently-defined behavior of ``std::function``\ deduction guides","Prague","","" |
| "`3242 <https://wg21.link/LWG3242>`__","``std::format``\ : missing rules for ``arg-id``\ in ``width``\ and ``precision``\ ","Prague","","" |
| "`3243 <https://wg21.link/LWG3243>`__","``std::format``\ and negative zeroes","Prague","","" |
| "`3247 <https://wg21.link/LWG3247>`__","``ranges::iter_move``\ should perform ADL-only lookup of ``iter_move``\ ","Prague","","" |
| "`3248 <https://wg21.link/LWG3248>`__","``std::format``\ ``#b``\ , ``#B``\ , ``#o``\ , ``#x``\ , and ``#X``\ presentation types misformat negative numbers","Prague","","" |
| "`3250 <https://wg21.link/LWG3250>`__","``std::format``\ : ``#``\ (alternate form) for NaN and inf","Prague","","" |
| "`3251 <https://wg21.link/LWG3251>`__","Are ``std::format``\ alignment specifiers applied to string arguments?","Prague","","" |
| "`3252 <https://wg21.link/LWG3252>`__","Parse locale's aware modifiers for commands are not consistent with POSIX spec","Prague","","" |
| "`3254 <https://wg21.link/LWG3254>`__","Strike ``stop_token``\ 's ``operator!=``\ ","Prague","","" |
| "`3255 <https://wg21.link/LWG3255>`__","``span``\ 's ``array``\ constructor is too strict","Prague","|Complete|","" |
| "`3260 <https://wg21.link/LWG3260>`__","``year_month*``\ arithmetic rejects durations convertible to years","Prague","","" |
| "`3262 <https://wg21.link/LWG3262>`__","Formatting of negative durations is not specified","Prague","","" |
| "`3264 <https://wg21.link/LWG3264>`__","``sized_range``\ and ``ranges::size``\ redundantly use ``disable_sized_range``\ ","Prague","","" |
| "`3269 <https://wg21.link/LWG3269>`__","Parse manipulators do not specify the result of the extraction from stream","Prague","","" |
| "`3270 <https://wg21.link/LWG3270>`__","Parsing and formatting ``%j``\ with ``duration``\ s","Prague","","" |
| "`3280 <https://wg21.link/LWG3280>`__","View converting constructors can cause constraint recursion and are unneeded","Prague","","" |
| "`3281 <https://wg21.link/LWG3281>`__","Conversion from ``*pair-like*``\ types to ``subrange``\ is a silent semantic promotion","Prague","","" |
| "`3282 <https://wg21.link/LWG3282>`__","``subrange``\ converting constructor should disallow derived to base conversions","Prague","","" |
| "`3284 <https://wg21.link/LWG3284>`__","``random_access_iterator``\ semantic constraints accidentally promote difference type using unary negate","Prague","","" |
| "`3285 <https://wg21.link/LWG3285>`__","The type of a customization point object shall satisfy ``semiregular``\ ","Prague","","" |
| "`3286 <https://wg21.link/LWG3286>`__","``ranges::size``\ is not required to be valid after a call to ``ranges::begin``\ on an input range","Prague","","" |
| "`3291 <https://wg21.link/LWG3291>`__","``iota_view::iterator``\ has the wrong ``iterator_category``\ ","Prague","","" |
| "`3292 <https://wg21.link/LWG3292>`__","``iota_view``\ is under-constrained","Prague","","" |
| "`3294 <https://wg21.link/LWG3294>`__","``zoned_time``\ deduction guides misinterprets ``string``\ /``char*``\ ","Prague","","" |
| "`3296 <https://wg21.link/LWG3296>`__","Inconsistent default argument for ``basic_regex<>::assign``\ ","Prague","|Complete|","" |
| "`3299 <https://wg21.link/LWG3299>`__","Pointers don't need customized iterator behavior","Prague","","" |
| "`3300 <https://wg21.link/LWG3300>`__","Non-array ``ssize``\ overload is underconstrained","Prague","","" |
| "`3301 <https://wg21.link/LWG3301>`__","``transform_view::iterator``\ has incorrect ``iterator_category``\ ","Prague","","" |
| "`3302 <https://wg21.link/LWG3302>`__","Range adaptor objects ``keys``\ and ``values``\ are unspecified","Prague","","" |
| "`3303 <https://wg21.link/LWG3303>`__","Bad ""``constexpr``\ "" marker for ``destroy/destroy_n``\ ","Prague","","" |
| "`3304 <https://wg21.link/LWG3304>`__","Allocate functions of ``std::polymorphic_allocator``\ should require ``[[nodiscard]]``\ ","Prague","","" |
| "`3307 <https://wg21.link/LWG3307>`__","``std::allocator<void>().allocate(n)``\ ","Prague","","" |
| "`3310 <https://wg21.link/LWG3310>`__","Replace ``SIZE_MAX``\ with ``numeric_limits<size_t>::max()``\ ","Prague","","" |
| "`3313 <https://wg21.link/LWG3313>`__","``join_view::iterator::operator--``\ is incorrectly constrained","Prague","","" |
| "`3314 <https://wg21.link/LWG3314>`__","Is stream insertion behavior locale dependent when ``Period::type``\ is ``micro``\ ?","Prague","","" |
| "`3315 <https://wg21.link/LWG3315>`__","Correct Allocator Default Behavior","Prague","","" |
| "`3316 <https://wg21.link/LWG3316>`__","Correctly define epoch for ``utc_clock``\ / ``utc_timepoint``\ ","Prague","","" |
| "`3317 <https://wg21.link/LWG3317>`__","Incorrect ``operator<<``\ for floating-point durations","Prague","","" |
| "`3318 <https://wg21.link/LWG3318>`__","Clarify whether clocks can represent time before their epoch","Prague","","" |
| "`3319 <https://wg21.link/LWG3319>`__","Properly reference specification of IANA time zone database","Prague","","" |
| "`3320 <https://wg21.link/LWG3320>`__","``span::cbegin/cend``\ methods produce different results than ``std::[ranges::]cbegin/cend``\ ","Prague","|Complete|","" |
| "`3321 <https://wg21.link/LWG3321>`__","``uninitialized_construct_using_allocator``\ should use ``construct_at``\ ","Prague","","" |
| "`3323 <https://wg21.link/LWG3323>`__","``*has-tuple-element*``\ helper concept needs ``convertible_to``\ ","Prague","","" |
| "`3324 <https://wg21.link/LWG3324>`__","Special-case ``std::strong/weak/partial_order``\ for pointers","Prague","","" |
| "`3325 <https://wg21.link/LWG3325>`__","Constrain return type of transformation function for ``transform_view``\ ","Prague","","" |
| "`3326 <https://wg21.link/LWG3326>`__","``enable_view``\ has false positives","Prague","","" |
| "`3327 <https://wg21.link/LWG3327>`__","Format alignment specifiers vs. text direction","Prague","","" |
| "`3328 <https://wg21.link/LWG3328>`__","Clarify that ``std::string``\ is not good for UTF-8","Prague","","" |
| "`3329 <https://wg21.link/LWG3329>`__","``totally_ordered_with``\ both directly and indirectly requires ``common_reference_with``\ ","Prague","","" |
| "`3330 <https://wg21.link/LWG3330>`__","Include ``<compare>``\ from most library headers","Prague","","" |
| "`3331 <https://wg21.link/LWG3331>`__","Define ``totally_ordered/_with``\ in terms of ``*partially-ordered-with*``\ ","Prague","","" |
| "`3332 <https://wg21.link/LWG3332>`__","Issue in |sect|\ [time.format]","Prague","","" |
| "`3334 <https://wg21.link/LWG3334>`__","``basic_osyncstream``\ move assignment and destruction calls ``basic_syncbuf::emit()``\ twice","Prague","","" |
| "`3335 <https://wg21.link/LWG3335>`__","Resolve C++20 NB comments US 273 and GB 274","Prague","","" |
| "`3338 <https://wg21.link/LWG3338>`__","Rename ``default_constructible``\ to ``default_initializable``\ ","Prague","","" |
| "`3340 <https://wg21.link/LWG3340>`__","Formatting functions should throw on argument/format string mismatch in |sect|\ [format.functions]","Prague","","" |
| "`3346 <https://wg21.link/LWG3346>`__","``pair``\ and ``tuple``\ copy and move constructor have backwards specification","Prague","","" |
| "`3347 <https://wg21.link/LWG3347>`__","``std::pair<T, U>``\ now requires ``T``\ and ``U``\ to be less-than-comparable","Prague","","" |
| "`3348 <https://wg21.link/LWG3348>`__","``__cpp_lib_unwrap_ref``\ in wrong header","Prague","","" |
| "`3349 <https://wg21.link/LWG3349>`__","Missing ``__cpp_lib_constexpr_complex``\ for P0415R1","Prague","","" |
| "`3350 <https://wg21.link/LWG3350>`__","Simplify return type of ``lexicographical_compare_three_way``\ ","Prague","","" |
| "`3351 <https://wg21.link/LWG3351>`__","``ranges::enable_safe_range``\ should not be constrained","Prague","","" |
| "`3352 <https://wg21.link/LWG3352>`__","``strong_equality``\ isn't a thing","Prague","","" |
| "`3354 <https://wg21.link/LWG3354>`__","``has_strong_structural_equality``\ has a meaningless definition","Prague","","" |
| "`3355 <https://wg21.link/LWG3355>`__","The memory algorithms should support move-only input iterators introduced by P1207","Prague","","" |
| "`3356 <https://wg21.link/LWG3356>`__","``__cpp_lib_nothrow_convertible``\ should be ``__cpp_lib_is_nothrow_convertible``\ ","Prague","","" |
| "`3358 <https://wg21.link/LWG3358>`__","|sect|\ [span.cons] is mistaken that ``to_address``\ can throw","Prague","","" |
| "`3359 <https://wg21.link/LWG3359>`__","``<chrono>``\ leap second support should allow for negative leap seconds","Prague","","" |
| "`3360 <https://wg21.link/LWG3360>`__","``three_way_comparable_with``\ is inconsistent with similar concepts","Prague","","" |
| "`3362 <https://wg21.link/LWG3362>`__","Strike ``stop_source``\ 's ``operator!=``\ ","Prague","","" |
| "`3363 <https://wg21.link/LWG3363>`__","``drop_while_view``\ should opt-out of ``sized_range``\ ","Prague","","" |
| "`3364 <https://wg21.link/LWG3364>`__","Initialize data members of ranges and their iterators","Prague","","" |
| "`3367 <https://wg21.link/LWG3367>`__","Integer-class conversions should not throw","Prague","","" |
| "`3369 <https://wg21.link/LWG3369>`__","``span``\ 's deduction-guide for built-in arrays doesn't work","Prague","","" |
| "`3371 <https://wg21.link/LWG3371>`__","``visit_format_arg``\ and ``make_format_args``\ are not hidden friends","Prague","","" |
| "`3372 <https://wg21.link/LWG3372>`__","``vformat_to``\ should not try to deduce ``Out``\ twice","Prague","","" |
| "`3373 <https://wg21.link/LWG3373>`__","``{to,from}_chars_result``\ and ``format_to_n_result``\ need the ""we really mean what we say"" wording","Prague","","" |
| "`3374 <https://wg21.link/LWG3374>`__","P0653 + P1006 should have made the other ``std::to_address``\ overload ``constexpr``\ ","Prague","|Complete|","12.0" |
| "`3375 <https://wg21.link/LWG3375>`__","``decay``\ in ``viewable_range``\ should be ``remove_cvref``\ ","Prague","","" |
| "`3377 <https://wg21.link/LWG3377>`__","``elements_view::iterator``\ befriends a specialization of itself","Prague","","" |
| "`3379 <https://wg21.link/LWG3379>`__","""``safe``\ "" in several library names is misleading","Prague","","" |
| "`3380 <https://wg21.link/LWG3380>`__","``common_type``\ and comparison categories","Prague","","" |
| "`3381 <https://wg21.link/LWG3381>`__","``begin``\ and ``data``\ must agree for ``contiguous_range``\ ","Prague","","" |
| "`3382 <https://wg21.link/LWG3382>`__","NTTP for ``pair``\ and ``array``\ ","Prague","","" |
| "`3383 <https://wg21.link/LWG3383>`__","|sect|\ [time.zone.leap.nonmembers] ``sys_seconds``\ should be replaced with ``seconds``\ ","Prague","","" |
| "`3384 <https://wg21.link/LWG3384>`__","``transform_view::*sentinel*``\ has an incorrect ``operator-``\ ","Prague","","" |
| "`3385 <https://wg21.link/LWG3385>`__","``common_iterator``\ is not sufficiently constrained for non-copyable iterators","Prague","","" |
| "`3387 <https://wg21.link/LWG3387>`__","|sect|\ [range.reverse.view] ``reverse_view<V>``\ unintentionally requires ``range<const V>``\ ","Prague","","" |
| "`3388 <https://wg21.link/LWG3388>`__","``view``\ iterator types have ill-formed ``<=>``\ operators","Prague","","" |
| "`3389 <https://wg21.link/LWG3389>`__","A move-only iterator still does not have a ``counted_iterator``\ ","Prague","","" |
| "`3390 <https://wg21.link/LWG3390>`__","``make_move_iterator()``\ cannot be used to construct a ``move_iterator``\ for a move-only iterator","Prague","","" |
| "`3393 <https://wg21.link/LWG3393>`__","Missing/incorrect feature test macro for coroutines","Prague","","" |
| "`3395 <https://wg21.link/LWG3395>`__","Definition for three-way comparison needs to be updated (US 152)","Prague","","" |
| "`3396 <https://wg21.link/LWG3396>`__","Clarify point of reference for ``source_location::current()``\ (DE 169)","Prague","","" |
| "`3397 <https://wg21.link/LWG3397>`__","``ranges::basic_istream_view::iterator``\ should not provide ``iterator_category``\ ","Prague","","" |
| "`3398 <https://wg21.link/LWG3398>`__","``tuple_element_t``\ is also wrong for ``const subrange``\ ","Prague","","" |
