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LWG-4472 std::atomic_ref<const T> can be constructed from temporaries

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6222 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-4026 Assignment operators of std::expected should propagate triviality

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6221 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-3891 LWG-3870 breaks std::expected<cv T, E>

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6220 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-4511 Inconsistency between the deduction guide of std::mdspan taking (data_handle_type, mapping_type, accessor_type) and the corresponding constructor

LWGLibrary Working Group issueLibrary Working Group issue

mdspanC++23 mdspanC++23 mdspan

Status: Open.

#6219 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-4510 Ambiguity of std::ranges::advance and std::ranges::next when the difference type is also a sentinel type

LWGLibrary Working Group issueLibrary Working Group issue

rangesC++20/23 rangesC++20/23 ranges

Status: Open.

#6218 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-4506 source_location is explicitly unspecified if is constexpr or not

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6217 In microsoft/STL;

· StephanTLavavej opened on Apr 4, 2026

LWG-4499 flat_set::insert_range specification may be problematic

flat_meowC++23 container adaptorsC++23 container adaptors

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6216 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026

LWG-4497 std::nullopt_t should be comparable

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6215 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026

LWG-4481 Disallow chrono::duration<const T, P>

chronoC++20 chronoC++20 chrono

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6214 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026

LWG-4477 Placement operator delete should be constexpr

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6213 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026

LWG-4324 unique_ptr<void>::operator* is not SFINAE-friendly

LWGLibrary Working Group issueLibrary Working Group issue

Status: Open.

#6210 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026

LWG-4314 Missing move in mdspan layout mapping::operator()

LWGLibrary Working Group issueLibrary Working Group issue

mdspanC++23 mdspanC++23 mdspan

Status: Open.

#6209 In microsoft/STL;

· StephanTLavavej opened on Apr 3, 2026