2025-07 Mailing Available

The 2025-07 mailing of new standards papers is now available.

 

WG21 Number Title Author Document Date Mailing Date Previous Version Subgroup
N5012 WG21 2025-06 Sofia Admin telecon minutes Nina Ranns 2025-06-08 2025-07 All of WG21
N5016 WG21 June 2025 Sofia Hybrid meeting Minutes of Meeting Nina Ranns 2025-07-08 2025-07 All of WG21
P0085R2 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-06-06 2025-07 P0085R1 EWG Evolution,LEWG Library Evolution
P0085R3 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-07-01 2025-07 P0085R2 EWG Evolution
P0085R3 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-07-01 2025-07 P0085R2 EWG Evolution
P0085R3 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-07-01 2025-07 P0085R2 EWG Evolution
P0085R3 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-07-01 2025-07 P0085R2 EWG Evolution
P0085R3 Oo... adding a coherent character sequence to begin octal-literals Axel Naumann 2025-07-01 2025-07 P0085R2 CWG Core
P0260R18 C++ Concurrent Queues Detlef Vollmann 2025-06-17 2025-07 P0260R17 LWG Library
P0260R19 C++ Concurrent Queues Detlef Vollmann 2025-06-18 2025-07 P0260R18 LWG Library
P0870R6 A proposal for a type trait to detect narrowing conversions Giuseppe D'Angelo 2025-06-17 2025-07 P0870R5 SG6 Numerics,LEWG Library Evolution,LWG Library
P0870R7 A proposal for a type trait to detect narrowing conversions Giuseppe D'Angelo 2025-06-17 2025-07 P0870R6 SG6 Numerics,LEWG Library Evolution,LWG Library
P0876R21 fiber_context - fibers without scheduler Oliver Kowalke 2025-07-13 2025-07 P0876R20 CWG Core,LWG Library
P1040R8 std::embed and #depend JeanHeyd Meneide 2025-06-22 2025-07 P1040R7 EWG Evolution
P1306R5 Expansion statements Dan Katz 2025-06-20 2025-07 P1306R4 All of WG21
P2079R10 Parallel Scheduler Lucian Radu Teodorescu 2025-06-25 2025-07 P2079R9 LWG Library
P2079R9 Parallel Scheduler Lucian Radu Teodorescu 2025-06-26 2025-07 P2079R8 LWG Library
P2319R5 Prevent path presentation problems Victor Zverovich 2025-06-17 2025-07 P2319R4 LWG Library
P2414R8 Pointer lifetime-end zap proposed solutions Paul E. McKenney 2025-06-18 2025-07 P2414R7 LEWG Library Evolution,LWG Library
P2414R9 Pointer lifetime-end zap proposed solutions Paul E. McKenney 2025-07-11 2025-07 P2414R8 EWG Evolution,LEWG Library Evolution
P2664R11 Proposal to extend std::simd with permutation API Daniel Towner 2025-06-20 2025-07 P2664R10 LWG Library
P2781R9 std::constexpr_wrapper Zach Laine 2025-06-17 2025-07 P2781R8 LWG Library
P2876R3 Proposal to extend std::simd with more constructors and accessors Daniel Towner 2025-06-17 2025-07 P2876R2 LWG Library
P2929R1 simd_invoke Daniel Towner 2025-06-19 2025-07 P2929R0 LEWG Library Evolution
P2996R13 Reflection for C++26 Barry Revzin 2025-06-20 2025-07 P2996R12 CWG Core,LWG Library
P3008R6 Atomic floating-point min/max Gonzalo Brito Gadeschi 2025-06-19 2025-07 P3008R5 LWG Library
P3044R2 sub-string_view from string Michael Florian Hava 2025-06-19 2025-07 P3044R1 LWG Library
P3045R6 Quantities and units library Mateusz Pusz 2025-06-19 2025-07 P3045R5 SG6 Numerics,SG16 Unicode,LEWGI SG18: LEWG Incubator,LEWG Library Evolution
P3060R3 Add std::views::indices(n) Weile Wei 2025-06-18 2025-07 P3060R2 LWG Library
P3091R4 Better lookups for `map` , `unordered_map`, and `flat_map` Pablo Halpern 2025-06-20 2025-07 P3091R3 LEWG Library Evolution,LWG Library
P3096R10 Function Parameter Reflection in Reflection for C++26 Adam Lach 2025-06-17 2025-07 P3096R9 CWG Core,LWG Library
P3096R11 Function Parameter Reflection in Reflection for C++26 Adam Lach 2025-06-19 2025-07 P3096R10 EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library
P3096R12 Function Parameter Reflection in Reflection for C++26 Adam Lach 2025-06-20 2025-07 P3096R11 CWG Core,LWG Library
P3100R3 Implicit contract assertions Timur Doumler 2025-07-03 2025-07 P3100R2 EWG Evolution
P3104R4 Bit permutations Jan Schultke 2025-06-28 2025-07 P3104R3 SG6 Numerics,LWG Library
P3111R7 Atomic Reduction Operations Gonzalo Brito Gadeschi 2025-06-18 2025-07 P3111R6 CWG Core,LWG Library
P3111R8 Atomic Reduction Operations Gonzalo Brito Gadeschi 2025-06-19 2025-07 P3111R7 LWG Library
P3149R11 async_scope -- Creating scopes for non-sequential concurrency Ian Petersen 2025-06-19 2025-07 P3149R10 LWG Library
P3179R9 C++ parallel range algorithms Ruslan Arutyunyan 2025-05-28 2025-07 P3179R8 LWG Library
P3211R1 views::flat_map Hewill Kang 2025-07-04 2025-07 P3211R0 SG9 Ranges,LEWG Library Evolution,LWG Library
P3216R1 views::slice Hewill Kang 2025-06-28 2025-07 P3216R0 SG9 Ranges,LEWG Library Evolution,LWG Library
P3220R1 views::take_before Hewill Kang 2025-06-23 2025-07 P3220R0 SG9 Ranges,LEWG Library Evolution,LWG Library,Direction Group
P3223R2 Making std::istream::ignore less surprising Jonathan Wakely 2025-06-20 2025-07 P3223R1 LWG Library
P3248R4 Require [u]intptr_t Gonzalo Brito Gadeschi 2025-06-19 2025-07 P3248R3 LWG Library
P3290R3 Integrating Existing Assertions With Contracts Joshua Berne 2025-07-11 2025-07 P3290R2 SG22 Compatibility,LEWG Library Evolution
P3293R3 Splicing a base class subobject Barry Revzin 2025-06-20 2025-07 P3293R2 CWG Core,LWG Library
P3347R3 Invalid/Prospective Pointer Operations Paul E. McKenney 2025-07-11 2025-07 P3347R2 CWG Core
P3348R4 C++26 should refer to C23 not C17 Jonathan Wakely 2025-06-19 2025-07 P3348R3 SG6 Numerics,LWG Library
P3383R3 mdspan.at() Stephan Lachnit 2025-06-17 2025-07 P3383R2 LWG Library
P3394R4 Annotations for Reflection Daveed Vandevoorde 2025-06-20 2025-07 P3394R3 All of WG21
P3411R3 `any_view` Hui Xie 2025-06-18 2025-07 P3411R2 SG9 Ranges,LEWG Library Evolution
P3433R1 Allocator Support for Operation States Dietmar Kuehl 2025-06-19 2025-07 P3433R0 LWG Library
P3439R3 Chained comparisons: Safe, correct, efficient Herb Sutter 2025-06-19 2025-07 P3439R2 EWG Evolution
P3440R1 Add n_elements named constructor to std::simd Daniel Towner 2025-06-13 2025-07 P3440R0 LEWG Library Evolution
P3480R6 std::simd is a range Matthias Kretz 2025-06-17 2025-07 P3480R5 LWG Library
P3481R4 std::execution::bulk() issues Lucian Radu Teodorescu 2025-06-17 2025-07 P3481R3 SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library
P3481R5 std::execution::bulk() issues Lucian Radu Teodorescu 2025-06-18 2025-07 P3481R4 SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library
P3491R3 define_static_{string,object,array} Barry Revzin 2025-06-20 2025-07 P3491R2 CWG Core,LWG Library
P3503R3 Make type-erased allocator use in promise and packaged_task consistent Nicolas Morales 2025-06-19 2025-07 P3503R2 LWG Library
P3540R2 #embed Parameter offset JeanHeyd Meneide 2025-06-05 2025-07 P3540R1 CWG Core
P3552R3 Add a Coroutine Task Type Dietmar Kühl 2025-06-20 2025-07 P3552R2 All of WG21
P3557R3 High-Quality Sender Diagnostics with Constexpr Exceptions Eric Niebler 2025-07-04 2025-07 P3557R2 LWG Library
P3560R2 Error Handling in Reflection Barry Revzin 2025-06-20 2025-07 P3560R1 LWG Library
P3566R2 You shall not pass `char*` - Safety concerns working with unbounded null-terminated strings Marco Foco, Joshua Kriegshauser, Alexey Shevlyakov, Giuseppe D'Angelo 2025-06-15 2025-07 P3566R1 LEWGI SG18: LEWG Incubator,SG23 Safety and Security,LEWG Library Evolution
P3566R2 You shall not pass `char*` - Safety concerns working with unbounded null-terminated strings Marco Foco, Joshua Kriegshauser, Alexey Shevlyakov, Giuseppe D'Angelo 2025-06-15 2025-07 P3566R1 LEWGI SG18: LEWG Incubator,SG23 Safety and Security,LEWG Library Evolution
P3570R2 optional variants in sender/receiver Fabio Fracassi 2025-06-18 2025-07 P3570R1 LWG Library
P3601R0 Slides for P3407R1 Brian Bi 2025-06-17 2025-07 EWG Evolution
P3642R1 Carry-less product: std::clmul Jan Schultke 2025-06-03 2025-07 P3642R0 SG6 Numerics,LEWGI SG18: LEWG Incubator
P3642R2 Carry-less product: std::clmul Jan Schultke 2025-07-02 2025-07 P3642R1 LEWG Library Evolution
P3647R0 Slides for P3642R1 Jan Schultke 2025-06-18 2025-07 SG6 Numerics,LEWGI SG18: LEWG Incubator
P3655R2 zstring_view Peter Bindels 2025-06-15 2025-07 P3655R1 LEWG Library Evolution
P3663R2 Future-proof `submdspan-mapping` Mark Hoemmen 2025-07-13 2025-07 P3663R1 LWG Library
P3668R2 Defaulting Postfix Increment and Decrement Operations Matthew Taylor 2025-07-13 2025-07 P3668R1 CWG Core
P3669R2 Non-Blocking Support for `std::execution` Detlef Vollmann 2025-06-19 2025-07 P3669R1 SG1 Concurrency and Parallelism,LEWG Library Evolution
P3687R1 Final Adjustments to C++26 Reflection Dan Katz 2025-06-18 2025-07 P3687R0 EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library
P3688R1 ASCII character utilities Jan Schultke 2025-06-28 2025-07 P3688R0 SG16 Unicode
P3690R1 Consistency fix: Make simd reductions SIMD-generic Olaf Krzikalla 2025-06-17 2025-07 P3690R0 LWG Library
P3691R1 Reconsider naming of the namespace for "std::simd" Matthias Kretz 2025-06-16 2025-07 P3691R0 LWG Library
P3692R1 How to Avoid OOTA Without Really Trying Paul E. McKenney 2025-07-10 2025-07 P3692R0 SG1 Concurrency and Parallelism
P3697R1 Minor additions to C++26 standard library hardening Konstantin Varlamov 2025-06-20 2025-07 P3697R0 LEWG Library Evolution,LWG Library
P3699R1 Rename `conqueue_errc` Detlef Vollmann 2025-06-16 2025-07 P3699R0 LEWG Library Evolution
P3705R1 A Sentinel for Null-Terminated Strings Eddie Nolan 2025-06-18 2025-07 P3705R0 SG9 Ranges,LEWG Library Evolution
P3705R2 A Sentinel for Null-Terminated Strings Eddie Nolan 2025-06-18 2025-07 P3705R1 SG9 Ranges,LEWG Library Evolution
P3709R1 Reconsider parallel ranges::rotate_copy and ranges::reverse_copy Ruslan Arutyunyan 2025-06-02 2025-07 P3709R0 SG9 Ranges,LEWG Library Evolution
P3709R2 Reconsider parallel ranges::rotate_copy and ranges::reverse_copy Ruslan Arutyunyan 2025-06-17 2025-07 P3709R1 SG9 Ranges,LEWG Library Evolution
P3711R1 Safer StringViewLike Functions for Replacing char* strings Marco Foco 2025-06-19 2025-07 P3711R0 SG23 Safety and Security,LEWG Library Evolution
P3713R0 2025-05 Library Evolution Poll Outcomes Inbal Levi 2025-07-15 2025-07 All of WG21
P3718R0 Fixing Lazy Sender Algorithm Customization, Again Eric Niebler 2025-06-28 2025-07 LEWG Library Evolution,LWG Library
P3719R0 std::is_vector_bool_reference Yuxuan Chen 2025-05-20 2025-07 LEWGI SG18: LEWG Incubator,LEWG Library Evolution
P3721R0 Slides for P3639R0 Jan Schultke 2025-06-03 2025-07 SG22 Compatibility
P3722R0 Slides for P3568R1 Jan Schultke 2025-05-27 2025-07 SG22 Compatibility
P3724R0 Integer division Jan Schultke 2025-06-05 2025-07 SG6 Numerics,LEWG Library Evolution
P3725R0 Filter View Extensions for Input Ranges Nicolai Josuttis 2025-06-19 2025-07 SG9 Ranges,LEWG Library Evolution,LWG Library
P3725R1 Filter View Extensions for Input Ranges Nicolai Josuttis 2025-06-23 2025-07 P3725R0 SG9 Ranges,LEWG Library Evolution,LWG Library
P3726R0 Adjustments to Union Lifetime Rules Barry Revzin 2025-07-13 2025-07 EWG Evolution,CWG Core
P3727R0 Update Annex E based on Unicode 15.1 UAX #31 Steve Downey 2025-06-11 2025-07 SG16 Unicode,CWG Core
P3729R0 Aligning span and string_view Michael Florian Hava 2025-06-23 2025-07 LEWG Library Evolution
P3730R0 Slides for P3104R3 Jan Schultke 2025-06-04 2025-07 LEWG Library Evolution
P3731R0 #embed Preprocessor Parameter Order JeanHeyd Meneide 2025-06-05 2025-07 SG22 Compatibility,EWG Evolution
P3732R0 Numeric Range Algorithms Ruslan Arutyunyan 2025-06-27 2025-07 SG1 Concurrency and Parallelism,SG9 Ranges
P3733R0 More named universal character escapes Jan Schultke 2025-06-28 2025-07 SG16 Unicode
P3734R0 Not all predicates must be regular Jan Schultke 2025-06-14 2025-07 SG9 Ranges
P3735R0 partial_sort_n, nth_element_n Jan Schultke 2025-06-28 2025-07 SG9 Ranges
P3736R0 Slides against P2971R3 - No implication for C++ Jan Schultke 2025-06-27 2025-07 EWG Evolution
P3737R0 std::array is a wrapper for an array! Jan Schultke 2025-06-11 2025-07 LEWG Library Evolution
P3738R0 Make std::make_from_tuple SFINAE friendly Yihan Wang 2025-06-10 2025-07 LEWG Library Evolution
P3739R0 Standard Library Hardening - using std::optional Jarrad J Waterloo 2025-06-10 2025-07 LWG Library
P3739R1 Standard Library Hardening - using std::optional Jarrad J Waterloo 2025-06-10 2025-07 P3739R0 LWG Library
P3740R0 Last chance to fix std::nontype Jan Schultke 2025-06-14 2025-07 LEWG Library Evolution
P3740R1 Last chance to fix std::nontype Jan Schultke 2025-06-19 2025-07 P3740R0 LEWG Library Evolution
P3741R0 views::set_operations Hewill Kang 2025-06-21 2025-07 SG9 Ranges
P3742R0 C++ Standard Library Ready Issues to be moved in Sofia, Jun. 2025 Jonathan Wakely 2025-06-13 2025-07 All of WG21
P3745R0 Rebuttal to P1144R13 Pablo Halpern 2025-07-02 2025-07 EWG Evolution,LEWG Library Evolution
P3746R0 LEWG Slides for P3637R0 Inherit std::meta::exception from std::exception Nevin Liber 2025-06-16 2025-07 LEWG Library Evolution
P3747R0 Call side return type deduction Thomas Mejstrik 2025-06-17 2025-07 EWGI SG17: EWG Incubator
P3748R0 Inspecting exception_ptr works should be constexpr. Hana Dusíková 2025-06-18 2025-07 LEWG Library Evolution
P3749R0 Slides in response to P3655R2 - Concerns regarding std::zstring_view Jan Schultke 2025-06-27 2025-07 LEWG Library Evolution
P3752R0 Core Language Working Group "ready" Issues for the June, 2025 meeting Jens Maurer 2025-06-20 2025-07 CWG Core
P3753R0 Slides for P3740R0 - Last chance to fix std::nontype Jan Schultke 2025-06-20 2025-07 LEWG Library Evolution
P3753R1 Slides for P3740R1 - Last chance to fix std::nontype Jan Schultke 2025-06-20 2025-07 P3753R0 LEWG Library Evolution
P3754R0 Slides for P3100R2 presentation to EWG Timur Doumler 2025-06-20 2025-07 EWG Evolution
P3757R0 Remove value-type invocability requirement from indirect unary callable concepts Hewill Kang 2025-06-21 2025-07 SG9 Ranges,LEWG Library Evolution,LWG Library
P3760R0 Presentation: constexpr 'Parallel' Algorithms Oliver Rosten 2025-06-21 2025-07 LEWG Library Evolution
P3763R0 Remove redundant reserve_hint members from view classes Hewill Kang 2025-06-21 2025-07 SG9 Ranges,LEWG Library Evolution,LWG Library
P3764R0 A utility function for propagating the most significant bit Jan Schultke 2025-07-15 2025-07 SG6 Numerics
P3765R0 Deprecate implicit conversion from bool to character types Jan Schultke 2025-07-12 2025-07 EWG Evolution
P3769R0 Clarification of placement new deallocation Lauri Vasama 2025-06-22 2025-07 EWG Evolution,CWG Core
P3771R0 constexpr mutex, locks, and condition variable Hana Dusíková 2025-06-30 2025-07 SG1 Concurrency and Parallelism,EWG Evolution,LEWG Library Evolution
P3772R0 std::simd overloads for bit permutations Jan Schultke 2025-06-28 2025-07 SG6 Numerics
P3774R0 Rename std::nontype, and make it broadly useful Jan Schultke 2025-07-15 2025-07 LEWG Library Evolution
P3778R0 Fixing `type_order` template definition Gašper Ažman 2025-07-03 2025-07 LEWG Library Evolution,LWG Library
P3780R0 Detecting bitwise trivially relocatable types Giuseppe D'Angelo 2025-07-10 2025-07 EWG Evolution,LEWG Library Evolution
P3781R0 is_*_type should imply is_type Xavier Bonaventura 2025-07-05 2025-07 SG20 Education,EWG Evolution
P3784R0 range-if Michael Florian Hava 2025-07-10 2025-07 EWGI SG17: EWG Incubator
P3785R0 Library Wording Changes for Defaulted Postfix Increment and Decrement Operators Matthew Taylor 2025-07-13 2025-07 LWG Library
P3787R0 Adjoints to "Enabling list-initialization for algorithms": uninitialized_fill Giuseppe D'Angelo 2025-07-10 2025-07 LEWG Library Evolution,LWG Library
P3788R0 Fixing `std::complex` binary operators Mateusz Pusz 2025-07-11 2025-07 SG6 Numerics,LEWG Library Evolution
P3790R0 Pointer lifetime-end zap proposed solutions: Bag-of-bits pointer class Paul E. McKenney 2025-07-13 2025-07 LEWG Library Evolution
P3791R0 constexpr deterministic random Hana Dusíková 2025-07-15 2025-07 LEWG Library Evolution
P3792R0 Why `constant_wrapper` is not a usable replacement for `nontype` Bronek Kozicki 2025-07-13 2025-07 LEWG Library Evolution,LWG Library
P3793R0 Better shifting Brian Bi 2025-07-15 2025-07 SG6 Numerics
P3794R0 An idea or two on renaming the nontype tag Zhihao Yuan 2025-07-13 2025-07 LEWG Library Evolution
P3795R0 Miscellaneous Reflection Cleanup Barry Revzin 2025-07-15 2025-07 EWG Evolution
P3796R0 Coroutine Task Issues Dietmar Kühl 2025-07-15 2025-07 SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library
P3798R0 The unexpected in std::expected Alex Kremer 2025-07-14 2025-07 LEWGI SG18: LEWG Incubator,LEWG Library Evolution,LWG Library
P3799R0 2025-07 Library Evolution Polls Inbal Levi 2025-07-15 2025-07 LEWG Library Evolution
P3801R0 Concerns about the design of std::execution::task Jonathan Müller 2025-07-15 2025-07 LEWG Library Evolution
P3802R0 Poor Functions Daveed Vandevoorde 2025-07-15 2025-07 EWG Evolution,LEWG Library Evolution

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