[2026-06 LWG Motion 1] P4258R0 C++ Standard Library Ready Issues#9130

Merged

tkoeppe merged 18 commits into

cplusplus:mainfrom

eisenwave:motions-2026-06-lwg-1

Jul 15, 2026

Commits on Jul 15, 2026

LWG3417 Missing volatile atomic deprecations

eisenwave
authored and
tkoeppe
committed
LWG4125 move_iterator's default constructor should be constrained

eisenwave
authored and
tkoeppe
committed
LWG4158 packaged_task::operator= should abandon its shared state

eisenwave
authored and
tkoeppe
committed
LWG4182 Definition of NULL is too broad

eisenwave
authored and
tkoeppe
committed
LWG4218 Constraint recursion in basic_const_iterator's relational operators due to ADL + CWG 2369

eisenwave
authored and
tkoeppe
committed
LWG4249 The past end issue for lazy_split_view

eisenwave
authored and
tkoeppe
committed
LWG4267 Uses-allocator construction is meaningless for tuple of references

eisenwave
authored and
tkoeppe
committed
LWG4359 as_awaitable(expr, p) does not define semantics of call if p is not an lvalue

eisenwave
authored and
tkoeppe
committed
LWG4385 Including <simd> doesn't provide std::begin/end

eisenwave
authored and
tkoeppe
committed
LWG4471 Remove test for get_env noexcept-ness from inline_scheduler

eisenwave
authored and
tkoeppe
committed
LWG4487 Is member is_steady of a Cpp17Clock type required to be usable in constant expressions?

eisenwave
authored and
tkoeppe
committed
LWG4490 Allow calling std::ranges::size in ranges algorithms

eisenwave
authored and
tkoeppe
committed
LWG4521 Improve [atomics.order] p10 to have a consistent way with [intro.races]

eisenwave
authored and
tkoeppe
committed
LWG4121 ranges::to constructs associative containers via c.emplace(c.end(), *it)

eisenwave
authored and
tkoeppe
committed
LWG4531 Should there be a feature-test macro update for constexpr std::to_(w)string?

eisenwave
authored and
tkoeppe
committed
LWG4567 Feature test macro value for apply_result, is_applicable

eisenwave
authored and
tkoeppe
committed
LWG4568 std::execution::spawn_future is mishandling dependent senders

eisenwave
authored and
tkoeppe
committed
LWG4579 make-state<Rcvr>::state-type::complete uses Env which is not in scope

eisenwave
authored and
tkoeppe
committed

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[2026-06 LWG Motion 1] P4258R0 C++ Standard Library Ready Issues#9130

[2026-06 LWG Motion 1] P4258R0 C++ Standard Library Ready Issues#9130
tkoeppe merged 18 commits into
cplusplus:mainfrom
eisenwave:motions-2026-06-lwg-1

Commits on Jul 15, 2026

LWG3417 Missing volatile atomic deprecations

LWG4125 move_iterator's default constructor should be constrained

LWG4158 packaged_task::operator= should abandon its shared state

LWG4182 Definition of NULL is too broad

LWG4218 Constraint recursion in basic_const_iterator's relational operators due to ADL + CWG 2369

LWG4249 The past end issue for lazy_split_view

LWG4267 Uses-allocator construction is meaningless for tuple of references

LWG4359 as_awaitable(expr, p) does not define semantics of call if p is not an lvalue

LWG4385 Including <simd> doesn't provide std::begin/end

LWG4471 Remove test for get_env noexcept-ness from inline_scheduler

LWG4487 Is member is_steady of a Cpp17Clock type required to be usable in constant expressions?

LWG4490 Allow calling std::ranges::size in ranges algorithms

LWG4521 Improve [atomics.order] p10 to have a consistent way with [intro.races]

LWG4121 ranges::to constructs associative containers via c.emplace(c.end(), *it)

LWG4531 Should there be a feature-test macro update for constexpr std::to_(w)string?

LWG4567 Feature test macro value for apply_result, is_applicable

LWG4568 std::execution::spawn_future is mishandling dependent senders

LWG4579 make-state<Rcvr>::state-type::complete uses Env which is not in scope