The 2025-05 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N5010 | WG21 agenda: 16-21 June 2025, Sofia Bulgaria | John Spicer | 2025-05-04 | 2025-05 | All of WG21 | |
| P0085R1 | Oo... adding a coherent character sequence to begin octal-literals | Axel Naumann | 2025-05-19 | 2025-05 | P0085R0 | EWG Evolution,LEWG Library Evolution |
| P0149R2 | Generalised member pointers | Jeff Snyder | 2025-05-19 | 2025-05 | P0149R1 | CWG Core |
| P0149R3 | Generalised member pointers | Jeff Snyder | 2025-05-19 | 2025-05 | P0149R2 | CWG Core |
| P1144R13 | std::is_trivially_relocatable | Arthur O'Dwyer | 2025-05-14 | 2025-05 | P1144R12 | EWG Evolution |
| P1306R4 | Expansion statements | Dan Katz | 2025-05-17 | 2025-05 | P1306R3 | CWG Core |
| P2079R8 | Parallel Scheduler | Lucian Radu Teodorescu | 2025-05-18 | 2025-05 | P2079R7 | LWG Library |
| P2287R5 | Designated-initializers for base classes | Barry Revzin | 2025-05-17 | 2025-05 | P2287R4 | EWG Evolution |
| P2414R7 | Pointer lifetime-end zap proposed solutions | Paul E. McKenney | 2025-05-14 | 2025-05 | P2414R6 | SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library |
| P2434R4 | Nondeterministic pointer provenance | S. Davis Herring | 2025-05-09 | 2025-05 | P2434R3 | SG1 Concurrency and Parallelism,SG22 Compatibility,EWG Evolution,CWG Core,LWG Library |
| P2509R1 | A proposal for a type trait to detect value-preserving conversions | Giuseppe D'Angelo | 2025-05-19 | 2025-05 | P2509R0 | SG6 Numerics,LEWG Library Evolution |
| P2664R10 | Proposal to extend std::simd with permutation API | Daniel Towner | 2025-05-19 | 2025-05 | P2664R9 | LWG Library |
| P2719R5 | Type-aware allocation and deallocation functions | Louis Dionne | 2025-05-12 | 2025-05 | P2719R4 | CWG Core |
| P2902R2 | constexpr 'Parallel' Algorithms | Oliver Rosten | 2025-05-12 | 2025-05 | P2902R1 | LEWG Library Evolution,LWG Library |
| P2927R3 | Observing exceptions stored in exception_ptr | Gor Nishanov | 2025-05-18 | 2025-05 | P2927R2 | LWG Library |
| P2956R1 | Add saturating library support to std::simd | Daniel Towner | 2025-05-19 | 2025-05 | P2956R0 | LWG Library |
| P2970R0 | Partial application of concepts in template arguments | Corentin Jabot | 2025-05-19 | 2025-05 | EWG Evolution | |
| P2996R12 | Reflection for C++26 | Barry Revzin | 2025-05-17 | 2025-05 | P2996R11 | EWG Evolution |
| P3008R5 | Atomic floating-point min/max | Gonzalo Brito Gadeschi | 2025-04-29 | 2025-05 | P3008R4 | LWG Library |
| P3008R5 | Atomic floating-point min/max | Gonzalo Brito Gadeschi | 2025-05-18 | 2025-05 | P3008R4 | LWG Library |
| P3037R6 | constexpr std::shared_ptr and friends | Paul Keir | 2025-05-03 | 2025-05 | P3037R5 | LWG Library |
| P3086R4 | Proxy: A Pointer-Semantics-Based Polymorphism Library | Mingxin Wang | 2025-05-19 | 2025-05 | P3086R3 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
| P3096R9 | Function Parameter Reflection in Reflection for C++26 | Adam Lach | 2025-05-15 | 2025-05 | P3096R8 | CWG Core,LWG Library |
| P3100R2 | Implicit contract assertions | Timur Doumler | 2025-05-19 | 2025-05 | P3100R1 | EWG Evolution |
| P3111R6 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2025-05-18 | 2025-05 | P3111R5 | CWG Core,LWG Library |
| P3125R4 | constexpr pointer tagging | Hana Dusíková | 2025-05-19 | 2025-05 | P3125R3 | LEWG Library Evolution |
| P3149R10 | async_scope -- Creating scopes for non-sequential concurrency | Ian Petersen | 2025-05-19 | 2025-05 | P3149R9 | LWG Library |
| P3164R4 | Early Diagnostics for Sender Expressions | Eric Niebler | 2025-04-27 | 2025-05 | P3164R3 | LWG Library |
| P3179R8 | C++ parallel range algorithms | Ruslan Arutyunyan | 2025-05-18 | 2025-05 | P3179R7 | LWG Library |
| P3284R4 | `write_env` and `unstoppable` Sender Adaptors | Eric Niebler | 2025-05-16 | 2025-05 | P3284R3 | LWG Library |
| P3293R2 | Splicing a base class subobject | Barry Revzin | 2025-05-11 | 2025-05 | P3293R1 | EWG Evolution |
| P3310R6 | Solving issues introduced by relaxed template template parameter matching | Matheus Izvekov | 2025-05-18 | 2025-05 | P3310R5 | EWG Evolution,CWG Core |
| P3347R2 | Invalid/Prospective Pointer Operations | Paul E. McKenney | 2025-05-14 | 2025-05 | P3347R1 | EWG Evolution |
| P3375R3 | Reproducible floating-point results | Guy Davidson | 2025-05-18 | 2025-05 | P3375R2 | SG6 Numerics,SG14 Low Latency,LEWG Library Evolution |
| P3385R5 | Attributes reflection | Aurelien Cassagnes | 2025-05-19 | 2025-05 | P3385R4 | EWG Evolution,LEWG Library Evolution |
| P3394R3 | Annotations for Reflection | Daveed Vandevoorde | 2025-05-17 | 2025-05 | P3394R2 | CWG Core,LWG Library |
| P3395R4 | Fix encoding issues and add a formatter for std::error_code | Victor Zverovich | 2025-04-27 | 2025-05 | P3395R3 | LEWG Library Evolution |
| P3402R3 | A Safety Profile Verifying Initialization | Marc-André Laverdière | 2025-05-16 | 2025-05 | P3402R2 | SG23 Safety and Security,EWG Evolution |
| P3411R2 | `any_view` | Hui Xie | 2025-05-17 | 2025-05 | P3411R1 | SG9 Ranges,LEWG Library Evolution |
| P3412R2 | String interpolation | Bengt Gustafsson | 2025-05-18 | 2025-05 | P3412R1 | EWG Evolution |
| P3439R2 | Chained comparisons: Safe, correct, efficient | Herb Sutter | 2025-05-10 | 2025-05 | P3439R1 | EWG Evolution |
| P3442R2 | [[invalidate_dereferencing]] attribute | Patrice Roy | 2025-05-19 | 2025-05 | P3442R1 | EWG Evolution |
| P3480R5 | std::simd is a range | Matthias Kretz | 2025-05-15 | 2025-05 | P3480R4 | LWG Library |
| P3516R2 | Uninitialized algorithms for relocation | Louis Dionne | 2025-05-16 | 2025-05 | P3516R1 | LWG Library |
| P3552R2 | Add a Coroutine Task Type | Dietmar Kühl | 2025-05-18 | 2025-05 | P3552R1 | LWG Library |
| P3556R1 | Input files are source files | Alisdair Meredith | 2025-05-19 | 2025-05 | P3556R0 | SG16 Unicode,CWG Core |
| P3557R2 | High-Quality Sender Diagnostics with Constexpr Exceptions | Eric Niebler | 2025-05-16 | 2025-05 | P3557R1 | LWG Library |
| P3560R1 | Error Handling in Reflection | Barry Revzin | 2025-05-19 | 2025-05 | P3560R0 | EWG Evolution,LEWG Library Evolution |
| P3565R1 | Virtual floating-point values | S. Davis Herring | 2025-05-19 | 2025-05 | P3565R0 | SG6 Numerics |
| P3566R1 | You shall not pass `char*` - Safety concerns working with unbounded null-terminated strings | Marco Foco | 2025-05-19 | 2025-05 | P3566R0 | SG23 Safety and Security,LEWG Library Evolution,LWG Library,ARG ABI Review Group |
| P3570R1 | optional variants in sender/receiver | Fabio Fracassi | 2025-05-19 | 2025-05 | P3570R0 | LEWG Library Evolution |
| P3588R1 | Allow static data members in local and unnamed classes | Brian Bi | 2025-05-17 | 2025-05 | P3588R0 | EWG Evolution |
| P3589R2 | C++ Profiles: The Framework | Gabriel Dos Reis | 2025-05-19 | 2025-05 | P3589R1 | EWG Evolution |
| P3617R0 | std::meta::reflect_constant_{array,string} | Barry Revzin | 2025-05-16 | 2025-05 | LEWG Library Evolution | |
| P3631R0 | Cleaning up the trivial relocation APIs in C++26 | Louis Dionne | 2025-05-18 | 2025-05 | LEWG Library Evolution,LWG Library | |
| P3649R0 | A principled approach to safety profiles | Jonathan Müller | 2025-05-19 | 2025-05 | SG23 Safety and Security | |
| P3655R1 | zstring_view | Peter Bindels | 2025-05-19 | 2025-05 | P3655R0 | LEWG Library Evolution |
| P3658R1 | Adjust identifier following new Unicode recommendations | Robin Leroy | 2025-05-15 | 2025-05 | P3658R0 | EWG Evolution |
| P3663R1 | Future-proof `submdspan-mapping` | Mark Hoemmen | 2025-05-16 | 2025-05 | P3663R0 | LWG Library |
| P3668R1 | Defaulting Postfix Increment and Decrement Operations | Matthew Taylor | 2025-05-16 | 2025-05 | P3668R0 | EWGI SG17: EWG Incubator |
| P3669R1 | Non-Blocking Support for `std::execution` | Detlef Vollmann | 2025-05-17 | 2025-05 | P3669R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3670R1 | Pack Indexing for Template Names | Corentin Jabot | 2025-05-03 | 2025-05 | P3670R0 | EWG Evolution |
| P3676R0 | Enhanced inline Keyword with Configurable Inlining Levels | Stephen Berry | 2025-04-17 | 2025-05 | SG14 Low Latency,EWGI SG17: EWG Incubator,LEWGI SG18: LEWG Incubator,EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library | |
| P3677R0 | Preserving LC_CTYPE at program start for UTF-8 locales | Corentin Jabot | 2025-05-03 | 2025-05 | SG16 Unicode,SG22 Compatibility | |
| P3678R0 | Arbitrary attributes in define_aggregate | Aurelien Cassagnes | 2025-05-14 | 2025-05 | SG7 Reflection | |
| P3679R0 | SFINAEable constexpr exceptions | Hana Dusíková | 2025-05-16 | 2025-05 | EWG Evolution | |
| P3681R0 | char_traits: Stop the bleeding | Corentin Jabot | 2025-05-19 | 2025-05 | SG16 Unicode | |
| P3682R0 | Remove std::execution::split | Robert Leahy | 2025-05-06 | 2025-05 | LEWG Library Evolution | |
| P3685R0 | Rename async_scope_token | Robert Leahy | 2025-05-07 | 2025-05 | LEWG Library Evolution | |
| P3686R0 | Allow named modules to export macros | Chuanqi Xu | 2025-05-07 | 2025-05 | EWG Evolution | |
| P3687R0 | Final Adjustments to C++26 Reflection | Dan Katz | 2025-05-15 | 2025-05 | EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library | |
| P3688R0 | ASCII character utilities | Jan Schultke | 2025-05-19 | 2025-05 | SG16 Unicode,LEWG Library Evolution | |
| P3689R0 | Convenience functions for Random number generation | Thomas Mejstrik | 2025-05-11 | 2025-05 | LEWGI SG18: LEWG Incubator | |
| P3690R0 | Consistency fix: Make simd reductions SIMD-generic | Olaf Krzikalla | 2025-05-13 | 2025-05 | LEWG Library Evolution | |
| P3691R0 | Reconsider naming of the namespace for "std::simd" | Matthias Kretz | 2025-05-19 | 2025-05 | LEWG Library Evolution | |
| P3692R0 | How to Avoid OOTA Without Really Trying | Paul E. McKenney | 2025-05-13 | 2025-05 | SG1 Concurrency and Parallelism | |
| P3693R0 | SG14: Low Latency/Games/Embedded/Financial Trading virtual Meeting Minutes 2025/04/09-2025/05/07 | Michael Wong | 2025-05-15 | 2025-05 | SG14 Low Latency | |
| P3694R0 | SG19: Machine Learning virtual Meeting Minutes to 2025/03/13-2025/05/08 | Michael Wong | 2025-05-15 | 2025-05 | SG19 Machine Learning | |
| P3695R0 | Deprecate implicit conversions between Unicode character types | Jan Schultke | 2025-05-17 | 2025-05 | SG16 Unicode,EWG Evolution | |
| P3696R0 | Discovering Header Units via Module Maps | Michael Spencer | 2025-05-19 | 2025-05 | SG15 Tooling | |
| P3697R0 | Minor additions to C++26 standard library hardening | Konstantin Varlamov | 2025-05-15 | 2025-05 | LEWG Library Evolution,LWG Library | |
| P3698R0 | Cross-capacity comparisons for inplace_vector | Charles Hussong | 2025-05-19 | 2025-05 | LEWG Library Evolution | |
| P3699R0 | Rename `conqueue_errc` | Detlef Vollmann | 2025-05-17 | 2025-05 | LEWG Library Evolution | |
| P3700R0 | Making Safe C++ happen | Peter Bindels | 2025-05-19 | 2025-05 | SG21 Contracts,SG23 Safety and Security,EWG Evolution | |
| P3701R0 | Concepts for integer types, not integral types | Jan Schultke | 2025-05-19 | 2025-05 | LEWG Library Evolution | |
| P3702R0 | Stricter requirements for document submissions (SD-7) | Jan Schultke | 2025-05-19 | 2025-05 | All of WG21 | |
| P3703R0 | Constness and Locking | Yoaodan Zhang | 2025-05-18 | 2025-05 | SG1 Concurrency and Parallelism | |
| P3704R0 | What are profiles? | Bjarne Stroustrup | 2025-05-19 | 2025-05 | SG20 Education,SG23 Safety and Security,EWG Evolution,LEWG Library Evolution | |
| P3705R0 | A Sentinel for Null-Terminated Strings | Eddie Nolan | 2025-05-19 | 2025-05 | SG9 Ranges,LEWG Library Evolution | |
| P3706R0 | Rename join and nest in async_scope proposal | Ruslan Arutyunyan | 2025-05-19 | 2025-05 | LEWG Library Evolution | |
| P3707R0 | A std::is_always_exhaustive trait | Patrice Roy | 2025-05-19 | 2025-05 | SG14 Low Latency,LEWG Library Evolution | |
| P3709R0 | Reconsider parallel ranges::rotate_copy and ranges::reverse_copy | Ruslan Arutyunyan | 2025-05-18 | 2025-05 | LEWG Library Evolution | |
| P3710R0 | zstring_view: a string_view with guaranteed null termination | Alexey Shevlyakov, Marco Foco | 2025-05-19 | 2025-05 | SG23 Safety and Security,LEWG Library Evolution | |
| P3711R0 | Safer StringViewLike Functions for Replacing char* strings | Marco Foco | 2025-05-19 | 2025-05 | SG23 Safety and Security,LEWG Library Evolution | |
| P3712R0 | 2025-05 Library Evolution Polls | Inbal Levi | 2025-05-19 | 2025-05 | All of WG21 | |
| P3714R0 | Virtual values have Virtual Value | Joshua Cranmer | 2025-05-19 | 2025-05 | SG6 Numerics | |
| P3715R0 | Tightening floating-point semantics for C++ | Joshua Cranmer | 2025-05-19 | 2025-05 | SG6 Numerics,SG22 Compatibility | |
| P3716R0 | Subsetting | Peter Bindels | 2025-05-19 | 2025-05 | SG23 Safety and Security,EWG Evolution | |
| P3717R0 | Update Annex E onto Unicode 16 | Steve Downey | 2025-05-19 | 2025-05 | SG16 Unicode,EWG Evolution,CWG Core |
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