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Merged
tkoeppe merged 54 commits into from
Dec 14, 2025
Merged

[Motions 2025 11 lwg 2] C++ Standard Library Immediate Issues #8580

tkoeppe merged 54 commits into from
Dec 14, 2025
+556 −474

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@burblebee
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@burblebee burblebee commented Dec 3, 2025 •
edited by tkoeppe
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Fixes #8461.

Fixes cplusplus/nbballot#748
Fixes cplusplus/nbballot#750
Fixes cplusplus/nbballot#751
Fixes cplusplus/nbballot#772
Fixes cplusplus/nbballot#919
Fixes cplusplus/nbballot#917
Fixes cplusplus/nbballot#694
Fixes cplusplus/nbballot#833
Fixes cplusplus/nbballot#935
Fixes cplusplus/nbballot#759
Fixes cplusplus/nbballot#834
Fixes cplusplus/nbballot#942
Fixes cplusplus/nbballot#945
Fixes cplusplus/nbballot#934
Fixes cplusplus/nbballot#886
Fixes cplusplus/nbballot#718
Fixes cplusplus/nbballot#931
Fixes cplusplus/nbballot#926
Fixes cplusplus/nbballot#920
Fixes cplusplus/nbballot#827
Fixes cplusplus/nbballot#828
Fixes cplusplus/nbballot#837
Fixes cplusplus/nbballot#993
Fixes cplusplus/nbballot#925
Fixes cplusplus/nbballot#942
Fixes cplusplus/nbballot#873
Fixes cplusplus/nbballot#872
Fixes cplusplus/nbballot#863
Fixes cplusplus/nbballot#860
Fixes cplusplus/nbballot#757
Fixes cplusplus/nbballot#774
Fixes cplusplus/nbballot#942
Fixes cplusplus/nbballot#778
Fixes cplusplus/nbballot#988

Also fixes cplusplus/papers#2537
Also fixes cplusplus/papers#2510
Also fixes cplusplus/papers#2520
Also fixes cplusplus/papers#2519
Also fixes cplusplus/papers#2523
Also fixes cplusplus/papers#2512
Also fixes cplusplus/papers#2511
Also fixes cplusplus/papers#2530
Also fixes cplusplus/papers#2531
Also fixes cplusplus/papers#2514
Also fixes cplusplus/papers#2509
Also fixes cplusplus/papers#2508
Also fixes cplusplus/papers#2516
Also fixes cplusplus/papers#2528
Also fixes cplusplus/papers#2523
Also fixes cplusplus/papers#2524
Also fixes cplusplus/papers#2531

jwakely
jwakely reviewed Dec 3, 2025
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@eisenwave eisenwave added this to the post-2025-11 milestone Dec 4, 2025
@burblebee burblebee force-pushed the motions-2025-11-lwg-2 branch 3 times, most recently from b150c04 to 997c5d0 Compare December 4, 2025 08:51
@burblebee burblebee marked this pull request as ready for review December 4, 2025 08:53
@burblebee burblebee requested a review from jwakely December 4, 2025 08:54
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Just one more tweak, "known" -> "unknown"

@burblebee burblebee requested a review from jwakely December 4, 2025 21:51
@frederick-vs-ja
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frederick-vs-ja commented Dec 9, 2025

This should also fix

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tkoeppe commented Dec 13, 2025

Am I right that we don't have the association with NB comments here yet? I'll add that, both to the commit messages and to the first comment here to close the associated tracking issues.

@tkoeppe tkoeppe force-pushed the motions-2025-11-lwg-2 branch from 4d67aae to 0e6d182 Compare December 14, 2025 00:01
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jensmaurer commented Dec 14, 2025 •
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The link list from @frederick-vs-ja does not match the actual commits in this pull request.

The links to the papers tracker should now be complete.
I've started to add the links to the nbballot tracker; @burblebee has updated the commit descriptions (thanks!)

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tkoeppe commented Dec 14, 2025

Thank you all!

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jensmaurer commented Dec 14, 2025 •
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@tkoeppe , I'm through. We can fix any oversights later, as needed.

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tkoeppe commented Dec 14, 2025

Thanks, Jens!

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tkoeppe commented Dec 14, 2025

Notes to self to reword:

@tkoeppe tkoeppe force-pushed the motions-2025-11-lwg-2 branch from 0e6d182 to 70d5162 Compare December 14, 2025 13:32
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tkoeppe commented Dec 14, 2025

To check, LWG4442 addresses US 118-179 as per paper, not US 230-360 as currently in the commit message?

@tkoeppe tkoeppe force-pushed the motions-2025-11-lwg-2 branch from 70d5162 to fc07369 Compare December 14, 2025 14:32
@burblebee @tkoeppe
LWG4442 Clarify expr and fn for meta::reflect_object and meta::reflec…
06aa28e 
…t_function

Fixes NB US 118-179 (C++26 CD).
@burblebee @tkoeppe
LWG4443 Clean up identifier comparisons in meta::define_aggregate
7e4df5a 
Fixes NB US 127-190 (C++26 CD).
@burblebee @tkoeppe
LWG4444 Fix default template arguments for ranges::replace and ranges…
81fe012 
…::replace_if

Fixes NB US 159-259 (C++26 CD).
@burblebee @tkoeppe
LWG4445 sch_ must not be in moved-from state
816b12a 
Fixes NB US 239-367 (C++26 CD).
@burblebee @tkoeppe
LWG4446 Bad phrasing for SCHED(s)
4318098 
Fixes NB US 240-370 (C++26 CD).
@burblebee @tkoeppe
LWG4447 Remove unnecessary sizeof…(Env) > 1 condition
05fc3e5 
Fixes NB US 206-325 (C++26 CD).
@burblebee @tkoeppe
LWG4448 Do not forward fn in completion_signatures
5d4d8ff 
Fixes NB US 230-360 (C++26 CD).
@burblebee @tkoeppe
LWG4449 define_aggregate members must be public
373ad37
@burblebee @tkoeppe
LWG4450 std::atomic_ref<T>::store_key should be disabled for const T
b61d476 
Fixes NB US 193-311 (C++26 CD).
@burblebee @tkoeppe
LWG4451 make_shared should not refer to a type U[N] for runtime N
7102286 
Fixes NB US 76-139 (C++26 CD).
@burblebee @tkoeppe
LWG4452 Make deref-move constexpr
daffc09
@burblebee @tkoeppe
LWG4455 Add missing constraint to basic-sender::get_completion_signat…
ca79655 
…ures definition

Fixes NB US 215-356 (C++26 CD).
@burblebee @tkoeppe
LWG4456 Decay Data and Child in make-sender
641d222 
Fixes NB US 211-351 (C++26 CD).
@burblebee @tkoeppe
LWG4459 Protect get_completion_signatures fold expression from overlo…
1da2a2e 
…aded commas

Fixes NB US 214-355 (C++26 CD).
@burblebee @tkoeppe
LWG4461 stop-when needs to evaluate unstoppable tokens
bba1f0e 
Fixes US NB 226-345 (C++26 CD).
@burblebee @tkoeppe
LWG4462 Algorithm requirements don't describe semantics of s - i well
4769eb9 
Fixes NB US 154-252 (C++26 CD).
@burblebee @tkoeppe
LWG4463 Change wording to 'model' from 'subsumes' in [algorithms.para…
e9a860f 
…llel.user]

Fixes NB US 155-253 (C++26 CD).
@burblebee @tkoeppe
LWG4464 [alg.merge] Wording tweaks
4b0f072 
Fixes NB US 163-262 (C++26 CD).
@tkoeppe tkoeppe force-pushed the motions-2025-11-lwg-2 branch from fc07369 to 3fedaa9 Compare December 14, 2025 14:38
@tkoeppe tkoeppe force-pushed the motions-2025-11-lwg-2 branch from 3fedaa9 to d3e367d Compare December 14, 2025 14:48
@tkoeppe tkoeppe merged commit 721d01c into main Dec 14, 2025
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LWG4304 std::optional<NonReturnable&> is ill-formed due to value_or LWG4308 std::optional<T&>::iterator can't be a contiguous iterator for some T LWG4015 LWG 3973 broke const overloads of std::optional monadic operations LWG4383 constant_wrapper's pseudo-mutators are underconstrained LWG4388 Align new definition of va_start with C23
LWG4376 ABI tag in return type of [simd.mask.unary] is overconstrained LWG4420 §[simd] conversions (constructor, load, stores, gather, and scatter) are incorrectly constrained for <stdfloat> types LWG4251 Move assignment for indirect unnecessarily requires copy construction LWG4230 simd<complex>::real/imag is overconstrained LWG 4272 For rank == 0, layout_stride is atypically convertible

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