[Motions 2025 06 lwg 1] P3742R0 C++ Standard Library Issues#8014

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burblebee wants to merge 24 commits intomainfrom

motions-2025-06-lwg-1

Commits on Jun 25, 2025

LWG4198 schedule_from isn't starting the schedule sender if decay-copying results throws
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LWG4202 enable-sender should be a variable template
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LWG4203 Constraints on get-state functions are incorrect
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LWG4204 specification of as-sndr2(Sig) in [exec.let] is incomplete
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LWG4205 let_[*].transform_env is specified in terms of the let_* sender itself instead of its child
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LWG4208 Wording needs to ensure that in connect(sndr, rcvr) that rcvr expression is only evaluated once
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LWG4209 default_domain::transform_env should be returning FWD-ENV(env)
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LWG4188 ostream::sentry destructor should handle exceptions
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LWG4200 The operation_state concept can be simplified
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LWG4201 with-await-transform::await_transform should not use a deduced return type
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LWG4217 Clarify mdspan layout mapping requirements for rank == 0
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LWG4222 expected constructor from a single value missing a constraint
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LWG4224 Philox engines should be freestanding
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LWG4227 Missing noexcept operator in [exec.when.all]
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LWG4231 datapar::chunk<N> should use simd-size-type instead of size_t
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LWG4232 datapar::resize does not resize
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LWG4233 The helper lambda of std::erase for hive should specify return type as bool
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LWG4234 Including <hive> doesn't provide std::begin/end
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LWG4235 cache_latest_view and to_input_view miss reserve_hint
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LWG4236 chunk_view::outer-iterator::value_type should provide reserve_hint
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LWG4239 flat_map's transparent comparator no longer works for string literals
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LWG4242 ranges::distance does not work with volatile iterators
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LWG4245 Operators that interact with counted_iterator and default_sentinel_t should be noexcept
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LWG4247 Header <stdbit.h> is not yet freestanding
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