List of issues - WG21 LWG Issues
ID Activity Section Status Title
3566 2 days ago [optional.comp.with.t] new Constraint recursion for operator<=>(optional<T>, U)
3559 2 days ago [range.sized] ready Semantic requirements of sized_range is circular
3561 2 days ago [rand.adapt.disc] ready Issue with internal counter in discard_block_engine
3563 2 days ago [range.elements.overview] new keys_view example is broken
3564 2 days ago [range.transform.iterator] open transform_view::iterator<true>::value_type and iterator_category should use const F&
3565 2 days ago [time.format] open Handling of encodings in localized formatting of chrono types is underspecified
3567 4 days ago [format.context] new Formatting move-only iterators take two
3557 1 week ago [concept.convertible] ready The static_cast expression in convertible_to has the wrong operand
2595 1 week ago [reverse.iterator][reverse.iter.elem] new reverse_iterator::operator[]'s return type revisited
3560 1 week ago [alg.equal][alg.is.permutation] new ranges::equal and ranges::is_permutation should short-circuit for sized_ranges
3554 2 weeks ago [time.parse] new chrono::parse needs const charT* and basic_string_view<charT> overloads
3556 3 weeks ago [structure.requirements] new Specification of when semantic constraints are imposed by use of concepts is unclear
3498 3 weeks ago [syncstream.syncbuf.overview][syncstream.syncbuf.assign] new Inconsistent noexcept-specifiers for basic_syncbuf
3088 3 weeks ago [forwardlist.ops] new forward_list::merge behavior unclear when passed *this
3146 3 weeks ago [refwrap.helpers] new Excessive unwrapping in std::ref/cref
3471 3 weeks ago [mem.res] new polymorphic_allocator::allocate does not satisfy Cpp17Allocator requirements
3121 3 weeks ago [tuple.cnstr] open tuple constructor constraints for UTypes&&... overloads
3550 3 weeks ago [reserved.names] new Names reserved by C for standard library not reserved by C++
3361 4 weeks ago [range.range] new safe_range<SomeRange&> case
3470 4 weeks ago [range.subrange] new convertible-to-non-slicing seems to reject valid case
3392 4 weeks ago [range.iter.op.distance] open ranges::distance() cannot be used on a move-only iterator with a sized sentinel
2381 1 month ago [facet.num.get.virtuals] open Inconsistency in parsing floating point numbers
3407 1 month ago [range.take.overview][range.iota] new Some problems with the wording changes of P1739R4
3480 1 month ago [fs.class.directory.iterator][fs.class.rec.dir.itr] new directory_iterator and recursive_directory_iterator are not C++20 ranges
3493 1 month ago [func.wrap.func.con] new The constructor of std::function taking an F is missing a constraint
3547 1 month ago [time.format] new Time formatters should not be locale sensitive by default
3445 1 month ago [socket.iostream.cons][socket.iostream.members] lewg [networking.ts] net::basic_socket_istream::connect should be constrained
3545 1 month ago [pointer.traits] new std::pointer_traits should be SFINAE-friendly
3531 1 month ago [map.overview][multimap.overview] [unord.map.overview][unord.multimap.overview] new LWG 3025 broke previous valid code
3534 1 month ago [set.intersection][set.difference] lewg ranges::set_intersection and ranges::set_difference algorithm requirements are too strict
3535 1 month ago [range.join.iterator] new join_view::iterator::iterator_category and ::iterator_concept lie
3537 1 month ago [iterator.range] new §[iterator.range] Missing noexcept for std::rbegin/rend for arrays and initializer_list
3538 1 month ago [library.c] new §[library.c] C library functions are not addressable
2491 2 months ago [comparisons] new std::less<T*> in constant expression
2157 3 months ago [array.zero] open How does std::array<T,0> initialization work when T is not default-constructible?
3516 3 months ago [thread.thread.id] new thread::id spaceship may be inconsistent with equality
3525 3 months ago [allocator.uses.construction] new uses_allocator_construction_args fails to handle types convertible to pair
3515 3 months ago [stacktrace.syn][stacktrace.basic.nonmem] lewg §[stacktrace.basic.nonmem]: operator<< should be less templatized
3514 3 months ago [stacktrace.syn] lewg stacktrace should add type alias pmr::stacktrace
3452 3 months ago [range.view] lewg Are views really supposed to have strict 𝒪(1) destruction?
3512 4 months ago [unord.hash] new Incorrect exception safety guarantee for unordered containers
3513 4 months ago [defns.prog.def.type] new Fix definition of program-defined based on its uses
3436 5 months ago [specialized.construct] new std::construct_at should support arrays
3491 5 months ago [cmp.alg][range.all.general][cmp.alg] new What is a "decayed type"?
3507 5 months ago [stacktrace.entry.query] new P0881R7 ("stacktrace") does not define "actual file name", "actual line number"
3511 5 months ago [res.on.arguments] new Clarify global permission to move
2833 5 months ago [variant.ctor] open Library needs to specify what it means when it declares a function constexpr
3508 5 months ago [atomics.ref.generic.general] new atomic_ref<cv T> is not well-specified
3503 6 months ago [time.duration.cast] new chrono::ceil has surprising requirement
3504 6 months ago [thread.condition.condvar] new condition_variable::wait_for is overspecified
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