List of issues - WG21 LWG Issues
ID Activity Section Status Title
4540 yesterday [exec.spawn.future] new future-senders returned from `spawn_future` do not forward stop requests to spawned work
4539 yesterday [bit.cast] new Undefined behavior in `std::bit_cast` should be diagnosed during constant evaluation
4538 yesterday [meta.reflection.layout] new `member_offset::total_bits` should be `noexcept`
4537 5 days ago [meta.define.static] new Improve `define_static_array`
4483 1 week ago [meta.define.static] ready Multidimensional arrays are not supported by meta::reflect_constant_array and related functions
4378 1 week ago [string.access] ready Inconsistency between `std::basic_string`'s `data()` and `operator[]` specification
4536 1 week ago [meta.unary.prop] [meta.rel] ready Type traits have inconsistent interactions with immediate functions
4535 1 week ago [simd.general] ready Disallow user specialization of <simd> templates
4534 1 week ago [meta.unary.prop] ready `is_consteval_only` preconditions are too weak
4454 1 week ago [assertions.assert] ready `assert` should forbid `co_await` and `co_yield`
4533 1 week ago [func.not.fn] [func.bind.partial] new not_fn<f> is unimplementable
4532 2 weeks ago [polymorphic.ctor] [polymorphic.assign] [polymorphic.dtor] new Imprecise `std::polymorphic` wording seems to imply slicing
4531 2 weeks ago [version.syn] new Should there be a feature-test macro update for constexpr `std::to_(w)string`?
4510 2 weeks ago [range.iter.op.advance][range.iter.op.next] ready Ambiguity of `std::ranges::advance` and `std::ranges::next` when the difference type is also a sentinel type
4529 2 weeks ago [task.promise] ready task::promise_type::await_transform declaration and definition mismatch
4453 2 weeks ago [atomics.ref.ops] new atomic_ref<cv T>::required_alignment should be the same as for `T`
4517 2 weeks ago [meta.reflection.define.aggregate] ready `data_member_spec` should throw for cv-qualified unnamed bit-fields
4519 2 weeks ago [thread.mutex.requirements.mutex.general] open No formal rule associates the total order of a mutex object with the rule for modification order
4520 2 weeks ago [span.cons] lewg Breaking change in `std::span` new `initializer_list` constructor
4521 2 weeks ago [atomics.order] open Improve [atomics.order] p10 to have a consistent way with [intro.races]
4522 2 weeks ago [format.string.std] ready Clarify that `std::format` transcodes for `std::wformat_strings`
4523 2 weeks ago [const.wrap.class] ready `constant_wrapper` should assign to `value`
4524 2 weeks ago [exec.schedule.from] new Wrong deduced return type in [exec.schedule.from]
4525 2 weeks ago [task.promise] ready task's final_suspend should move the result
4526 2 weeks ago [task.promise] new std::monostate could be a valid error for task
4527 2 weeks ago [task.promise] ready await_transform needs to use as_awaitable
4528 2 weeks ago [task.class] ready task needs get_completion_signatures()
4530 2 weeks ago [format.formatter.spec] new Unclear specification for formatter<charT[N], charT>
2414 3 weeks ago [reentrancy] ready Member function reentrancy should be implementation-defined
3504 3 weeks ago [thread.condition.condvar] ready condition_variable::wait_for is overspecified
4496 3 weeks ago [meta.reflection] ready Precedes vs Reachable in [meta.reflection]
4499 3 weeks ago [flat.set.modifiers][flat.multiset.modifiers] ready `flat_set::insert_range` specification may be problematic
4511 3 weeks ago [mdspan.mdspan.overview] ready Inconsistency between the deduction guide of `std::mdspan` taking `(data_handle_type, mapping_type, accessor_type)` and the corresponding constructor
4512 3 weeks ago [fs.class.path.general][fs.path.type.cvt] [fs.path.native.obs][fs.path.generic.obs] [depr.fs.path.obs] ready The `system_encoded_string()` and `generic_system_encoded_string()` member functions of `std::filesystem::path` are misnamed
4515 3 weeks ago [format.string.std] open `format`: `a` and `A` should insert the `0x` or `0X` prefix
4320 3 weeks ago [hive] new `hive` operations involving insertion/erasure should have 𝒪(log n) time complexity
4497 3 weeks ago [optional.nullopt] new `std::nullopt_t` should be comparable
4503 3 weeks ago [concept.assignable] lewg Use of `std::common_reference_with` in `std::assignable_from` seems incorrect
4504 3 weeks ago [exec.simple.counting.mem] new Wording problem in `{simple_}counting_scope`
4505 3 weeks ago [optional.specalg] new The `std::make_optional` overload taking `std::initializer_list` should not accept a reference type as its template argument
4506 3 weeks ago [support.srcloc.class] new `source_location` is explicitly unspecified if is constexpr or not
4507 3 weeks ago [input.output] core The order of side effects initiated by I/O functions is not described by happen-before
4508 3 weeks ago [cstdarg.syn] new Meaning of "compatible" and C++ desire for C23 changes unclear for `va_arg`
4509 3 weeks ago [optional.monadic] lewg std::optional<T>::transform cannot be implemented while supporting program-defined specializations
4516 3 weeks ago [algorithms] new `ranges` namespace is used inconsistently in [algorithms]
4502 3 weeks ago [exec.when.all] new std::execution::when_all Is Never Nothrow Connectable
4501 3 weeks ago [exec.let] new std::execution::let_* Unconditionally Potentially Evaluates std::execution::set_error
4498 3 weeks ago [atomics.order] open §[atomics.order] The total order should be intended to be a strict total order
4470 3 weeks ago [simd] new The use of integer-from<Bytes> all over [simd] is incorrect for Bytes=sizeof(complex<double>)
4518 3 weeks ago [simd.syn][simd.creation] new `simd::cat` return type requires inefficient ABI tag change/conversion
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