June 16-21, Sofia, Bulgaria
By Blog Staff | May 7, 2025 02:58 AM | Tags: None
If you haven't already, please take 10 minutes to participate in this year's annual C++ developer survey! The results help to inform C++ standardization and C++ product vendors.
2025 Annual C++ Developer Survey "Lite"
The survey closes on Friday.
Thank you for participating and helping to inform our committee and community!
By Blog Staff | Apr 30, 2025 04:11 PM | Tags: None
The annual global C++ developer survey is now open. As the name suggests, it's short:
2025 Annual C++ Developer Survey "Lite"
Please take 10 minutes or so to participate! A summary of the results, including aggregated highlights of common answers in the write-in responses, will be posted publicly here on isocpp.org and shared with the C++ standardization committee participants to help inform C++ evolution.
The survey closes in one week.
Thank you for participating and helping to inform our committee and community!
By Administrator | Mar 21, 2025 01:44 PM | Tags: None
The 2025-03 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N5004 | 2025 Sofia Meeting Invitation and Information | Vassil Vassilev | 2025-01-14 | 2025-03 | All of WG21 | |
| N5005 | WG21 2025-01 Hagenberg Admin telecon minutes | Nina Ranns | 2025-01-31 | 2025-03 | All of WG21 | |
| N5006 | 2025 WG21 admin telecon meetings (revised 2025-02-20) | Herb Sutter | 2025-03-03 | 2025-03 | All of WG21 | |
| N5007 | WG21 02/2025 Hagenberg Minutes of Meeting | Nina Ranns | 2025-03-03 | 2025-03 | All of WG21 | |
| N5008 | Working Draft, Programming Languages -- C++ | Thomas Köppe | 2025-03-15 | 2025-03 | All of WG21 | |
| N5009 | Editors' Report, Programming Languages -- C++ | Thomas Köppe | 2025-03-15 | 2025-03 | All of WG21 | |
| P0260R15 | C++ Concurrent Queues | Detlef Vollmann | 2025-02-13 | 2025-03 | P0260R14 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0260R16 | C++ Concurrent Queues | Detlef Vollmann | 2025-02-15 | 2025-03 | P0260R15 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0876R20 | fiber_context - fibers without scheduler | Oliver Kowalke | 2025-02-27 | 2025-03 | P0876R19 | EWG Evolution,CWG Core,LWG Library |
| P1494R5 | Partial program correctness | S. Davis Herring | 2025-03-04 | 2025-03 | P1494R4 | CWG Core,LWG Library |
| P1967R14 | #embed - a simple, scannable preprocessor-based resource acquisition method | JeanHeyd Meneide | 2025-02-17 | 2025-03 | P1967R13 | CWG Core |
| P2079R7 | System execution context | Lucian Radu Teodorescu | 2025-02-12 | 2025-03 | P2079R6 | LEWG Library Evolution |
| P2287R4 | Designated-initializers for base classes | Barry Revzin | 2025-03-10 | 2025-03 | P2287R3 | EWG Evolution |
| P2414R6 | Pointer lifetime-end zap proposed solutions | Paul E. McKenney | 2025-02-13 | 2025-03 | P2414R5 | SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library |
| P2663R7 | Proposal to support interleaved complex values in std::simd | Daniel Towner | 2025-02-17 | 2025-03 | P2663R6 | LWG Library |
| P2719R4 | Type-aware allocation and deallocation functions | Louis Dionne | 2025-02-10 | 2025-03 | P2719R3 | CWG Core |
| P2758R5 | Emitting messages at compile time | Barry Revzin | 2025-03-16 | 2025-03 | P2758R4 | CWG Core,LWG Library |
| P2781R6 | std::constexpr_wrapper | Zach Laine | 2025-02-16 | 2025-03 | P2781R5 | LEWG Library Evolution,LWG Library |
| P2781R7 | std::constexpr_wrapper | Zach Laine | 2025-03-09 | 2025-03 | P2781R6 | LEWG Library Evolution,LWG Library |
| P2781R8 | std::constexpr_wrapper | Zach Laine | 2025-03-15 | 2025-03 | P2781R7 | LEWG Library Evolution,LWG Library |
| P2786R12 | Trivial Relocatability For C++26 | Pablo Halpern | 2025-02-10 | 2025-03 | P2786R11 | CWG Core,LWG Library |
| P2786R13 | Trivial Relocatability For C++26 | Pablo Halpern | 2025-02-14 | 2025-03 | P2786R12 | All of WG21 |
| P2825R5 | Overload resolution hook: declcall( unevaluated-call-expression ) | Gašper Ažman | 2025-03-16 | 2025-03 | P2825R4 | EWG Evolution,CWG Core |
| P2830R10 | Standardized Constexpr Type Ordering | Gašper Ažman | 2025-03-15 | 2025-03 | P2830R9 | EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library |
| P2841R7 | Concept and variable-template template-parameters | Corentin Jabot | 2025-02-15 | 2025-03 | P2841R6 | CWG Core |
| P2843R2 | Preprocessing is never undefined | Alisdair Meredith | 2025-03-17 | 2025-03 | P2843R1 | CWG Core |
| P2846R6 | reserve_hint: Eagerly reserving memory for not-quite-sized lazy ranges | Corentin Jabot | 2025-02-15 | 2025-03 | P2846R5 | LWG Library |
| P2863R9 | Review Annex D for C++26 | Alisdair Meredith | 2025-03-11 | 2025-03 | P2863R8 | EWG Evolution,CWG Core,LWG Library |
| P2873R3 | Remove Deprecated locale category facets for Unicode from C++26 | Alisdair Meredith | 2025-03-17 | 2025-03 | P2873R2 | LWG Library |
| P2876R2 | Proposal to extend std::simd with more constructors and accessors | Daniel Towner | 2025-02-14 | 2025-03 | P2876R1 | LWG Library |
| P2899R1 | Contracts for C++ - Rationale | Timur Doumler | 2025-03-14 | 2025-03 | P2899R0 | SG21 Contracts,EWG Evolution,LEWG Library Evolution |
| P2900R14 | Contracts for C++ | Joshua Berne | 2025-02-14 | 2025-03 | P2900R13 | CWG Core,LWG Library |
| P2933R4 | std::simd overloads for <bit> header | Daniel Towner | 2025-02-17 | 2025-03 | P2933R3 | LWG Library |
| P2988R10 | std::optional<T&> | Steve Downey | 2025-02-18 | 2025-03 | P2988R9 | LWG Library |
| P2988R11 | std::optional<T&> | Steve Downey | 2025-03-17 | 2025-03 | P2988R10 | LWG Library |
| P2996R10 | Reflection for C++26 | Barry Revzin | 2025-02-26 | 2025-03 | P2996R9 | EWG Evolution |
| P3008R4 | Atomic floating-point min/max | Gonzalo Brito Gadeschi | 2025-02-20 | 2025-03 | P3008R3 | LWG Library |
| P3016R6 | Resolve inconsistencies in begin/end for valarray and braced initializer lists | Arthur O'Dwyer | 2025-02-11 | 2025-03 | P3016R5 | LWG Library |
| P3019R13 | Vocabulary Types for Composite Class Design | Jonathan Coe | 2025-02-09 | 2025-03 | P3019R12 | LEWG Library Evolution,LWG Library |
| P3019R14 | Vocabulary Types for Composite Class Design | Jonathan Coe | 2025-02-11 | 2025-03 | P3019R13 | LEWG Library Evolution,LWG Library |
| P3060R2 | Add std::views::indices(n) | Weile Wei | 2025-02-20 | 2025-03 | P3060R1 | LWG Library |
| P3070R3 | Formatting enums | Victor Zverovich | 2025-02-16 | 2025-03 | P3070R2 | LWG Library |
| P3074R6 | trivial unions (was std::uninitialized<T>) | Barry Revzin | 2025-02-11 | 2025-03 | P3074R5 | EWG Evolution |
| P3074R7 | trivial unions (was std::uninitialized<T>) | Barry Revzin | 2025-02-14 | 2025-03 | P3074R6 | EWG Evolution |
| P3081R2 | Core safety profiles for C++26 | Herb Sutter | 2025-02-03 | 2025-03 | P3081R1 | EWG Evolution,LEWG Library Evolution |
| P3096R6 | Function Parameter Reflection in Reflection for C++26 | Adam Lach | 2025-02-07 | 2025-03 | P3096R5 | CWG Core,LWG Library |
| P3096R7 | Function Parameter Reflection in Reflection for C++26 | Adam Lach | 2025-03-15 | 2025-03 | P3096R6 | CWG Core,LWG Library |
| P3104R3 | Bit permutations | Jan Schultke | 2025-02-11 | 2025-03 | P3104R2 | LEWG Library Evolution |
| P3111R4 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2025-02-14 | 2025-03 | P3111R3 | LEWG Library Evolution |
| P3111R5 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2025-02-20 | 2025-03 | P3111R4 | CWG Core,LWG Library |
| P3137R3 | views::to_input | Tim Song | 2025-02-10 | 2025-03 | P3137R2 | LWG Library |
| P3149R9 | async_scope -- Creating scopes for non-sequential concurrency | Ian Petersen | 2025-02-18 | 2025-03 | P3149R8 | LWG Library |
| P3161R3 | Unified integer overflow arithmetic | Tiago Freire | 2025-01-16 | 2025-03 | P3161R2 | SG6 Numerics |
| P3179R6 | C++ parallel range algorithms | Ruslan Arutyunyan | 2025-02-07 | 2025-03 | P3179R5 | LEWG Library Evolution |
| P3179R7 | C++ parallel range algorithms | Ruslan Arutyunyan | 2025-02-28 | 2025-03 | P3179R6 | LWG Library |
| P3229R1 | Making erroneous behaviour compatible with Contracts | Timur Doumler | 2025-02-10 | 2025-03 | P3229R0 | EWG Evolution,LEWG Library Evolution |
| P3230R2 | views::unchecked_(take|drop) | Hewill Kang | 2025-02-27 | 2025-03 | P3230R1 | SG9 Ranges,LEWG Library Evolution,LWG Library |
| P3242R1 | Copy and fill for mdspan | Nicolas Morales | 2025-03-13 | 2025-03 | P3242R0 | LEWG Library Evolution |
| P3248R3 | Require [u]intptr_t | Gonzalo Brito Gadeschi | 2025-02-10 | 2025-03 | P3248R2 | EWG Evolution,LEWG Library Evolution |
| P3284R3 | `write_env` and `unstoppable` Sender Adaptors | Eric Niebler | 2025-02-13 | 2025-03 | P3284R2 | LWG Library |
| P3287R3 | Exploration of namespaces for std::simd | Matthias Kretz | 2025-02-13 | 2025-03 | P3287R2 | LWG Library |
| P3296R4 | let_async_scope | Anthony Williams | 2025-03-17 | 2025-03 | P3296R3 | LWG Library |
| P3319R3 | Add an iota object for simd (and more) | Matthias Kretz | 2025-02-03 | 2025-03 | P3319R2 | LEWG Library Evolution |
| P3319R4 | Add an iota object for simd (and more) | Matthias Kretz | 2025-02-14 | 2025-03 | P3319R3 | LEWG Library Evolution |
| P3319R5 | Add an iota object for simd (and more) | Matthias Kretz | 2025-02-14 | 2025-03 | P3319R4 | LWG Library |
| P3331R1 | Accessing The First and Last Elements in Associative Containers | Nikita Sakharin | 2025-02-05 | 2025-03 | P3331R0 | LEWG Library Evolution,LWG Library |
| P3349R1 | Converting contiguous iterators to pointers | Jonathan Wakely | 2025-02-10 | 2025-03 | P3349R0 | LWG Library |
| P3365R1 | Remove the Deprecated iterator Class Template from C++26 | Alisdair Meredith | 2025-03-11 | 2025-03 | P3365R0 | LWG Library |
| P3366R1 | Remove Deprecated Atomic Initialization API from C++26 | Alisdair Meredith | 2025-03-16 | 2025-03 | P3366R0 | LWG Library |
| P3367R4 | constexpr coroutines | Hana Dusíková | 2025-02-17 | 2025-03 | P3367R3 | CWG Core,LWG Library |
| P3372R3 | constexpr containers and adapters | Hana Dusíková | 2025-02-11 | 2025-03 | P3372R2 | LWG Library |
| P3378R2 | constexpr exception types | Hana Dusíková | 2025-02-11 | 2025-03 | P3378R1 | LWG Library |
| P3383R2 | mdspan.at() | Stephan Lachnit | 2025-02-17 | 2025-03 | P3383R1 | LWG Library |
| P3385R4 | Attributes reflection | Aurelien Cassagnes | 2025-03-10 | 2025-03 | P3385R3 | SG7 Reflection,EWG Evolution,LEWG Library Evolution |
| P3394R2 | Annotations for Reflection | Daveed Vandevoorde | 2025-03-14 | 2025-03 | P3394R1 | CWG Core,LWG Library |
| P3395R1 | Fix encoding issues and add a formatter for std::error_code | Victor Zverovich | 2025-03-12 | 2025-03 | P3395R0 | LEWG Library Evolution |
| P3395R2 | Fix encoding issues and add a formatter for std::error_code | Victor Zverovich | 2025-03-17 | 2025-03 | P3395R1 | LEWG Library Evolution |
| P3400R1 | Specifying Contract Assertion Properties with Labels | Joshua Berne | 2025-02-28 | 2025-03 | P3400R0 | SG21 Contracts,All of WG21 |
| P3417R1 | Handling exceptions thrown from contract predicates | Gašper Ažman | 2025-03-05 | 2025-03 | P3417R0 | SG21 Contracts,EWG Evolution |
| P3430R3 | simd issues: explicit, unsequenced, identity-element position, and members of disabled simd | Matthias Kretz | 2025-02-13 | 2025-03 | P3430R2 | LWG Library |
| P3441R1 | Rename simd_split to simd_chunk | Daniel Towner | 2025-01-29 | 2025-03 | P3441R0 | LEWG Library Evolution |
| P3441R2 | Rename simd_split to simd_chunk | Daniel Towner | 2025-01-30 | 2025-03 | P3441R1 | LEWG Library Evolution |
| P3442R1 | [[invalidate_dereferencing]] attribute | Patrice Roy | 2025-02-11 | 2025-03 | P3442R0 | SG14 Low Latency,LEWG Library Evolution |
| P3471R3 | Standard Library Hardening | Konstantin Varlamov | 2025-02-13 | 2025-03 | P3471R2 | SG23 Safety and Security,LEWG Library Evolution |
| P3471R4 | Standard Library Hardening | Konstantin Varlamov | 2025-02-14 | 2025-03 | P3471R3 | CWG Core,LWG Library |
| P3472R1 | Make fiber_context::can_resume() const | Andrzej Krzemieński | 2025-01-28 | 2025-03 | P3472R0 | LEWG Library Evolution |
| P3475R2 | Defang and deprecate memory_order::consume | Hans Boehm | 2025-02-25 | 2025-03 | P3475R1 | SG1 Concurrency and Parallelism,EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library |
| P3477R3 | There are exactly 8 bits in a byte | JF Bastien | 2025-02-10 | 2025-03 | P3477R2 | LEWG Library Evolution,CWG Core,LWG Library |
| P3477R4 | There are exactly 8 bits in a byte | JF Bastien | 2025-02-13 | 2025-03 | P3477R3 | CWG Core |
| P3477R5 | There are exactly 8 bits in a byte | JF Bastien | 2025-03-15 | 2025-03 | P3477R4 | EWG Evolution,LEWG Library Evolution |
| P3480R4 | std::simd is a range | Matthias Kretz | 2025-02-14 | 2025-03 | P3480R3 | LEWG Library Evolution |
| P3481R2 | std::execution::bulk() issues | Lucian Radu Teodorescu | 2025-02-11 | 2025-03 | P3481R1 | LEWG Library Evolution |
| P3482R1 | Design for C++ networking based on IETF TAPS | Thomas Rodgers, Woven By Toyota, [email protected] | 2025-01-13 | 2025-03 | P3482R0 | SG4 Networking |
| P3491R2 | define_static_{string,object,array} | Barry Revzin | 2025-03-14 | 2025-03 | P3491R1 | EWG Evolution,LEWG Library Evolution |
| P3492R1 | Sized deallocation for placement new | Lauri Vasama | 2025-02-10 | 2025-03 | P3492R0 | EWG Evolution |
| P3492R2 | Sized deallocation for placement new | Lauri Vasama | 2025-02-17 | 2025-03 | P3492R1 | EWG Evolution,CWG Core |
| P3499R1 | Exploring strict contract predicates | Timur Doumler | 2025-02-09 | 2025-03 | P3499R0 | EWG Evolution |
| P3500R1 | Are Contracts "safe"? | Timur Doumler | 2025-02-09 | 2025-03 | P3500R0 | EWG Evolution |
| P3503R1 | Make type-erased allocator use in promise and packaged_task consistent | Nicolas Morales | 2025-03-16 | 2025-03 | P3503R0 | LWG Library |
| P3503R2 | Make type-erased allocator use in promise and packaged_task consistent | Nicolas Morales | 2025-03-17 | 2025-03 | P3503R1 | LWG Library |
| P3505R0 | Fix the default floating-point representation in std::format | Victor Zverovich | 2025-03-16 | 2025-03 | LEWG Library Evolution | |
| P3516R1 | Uninitialized algorithms for relocation | Louis Dionne | 2025-02-11 | 2025-03 | P3516R0 | LEWG Library Evolution |
| P3526R0 | Container truncation | Peter Bindels | 2025-03-17 | 2025-03 | LEWG Library Evolution | |
| P3533R2 | constexpr virtual inheritance | Hana Dusíková | 2025-02-17 | 2025-03 | P3533R1 | CWG Core |
| P3537R1 | Presentation on Concurrent Queue API | Detlef Vollmann | 2025-02-11 | 2025-03 | P3537R0 | All of WG21 |
| P3540R1 | #embed Parameter offset | JeanHeyd Meneide | 2025-02-17 | 2025-03 | P3540R0 | CWG Core |
| P3544R0 | ranges::to view | Hewill Kang | 2025-02-11 | 2025-03 | SG9 Ranges | |
| P3547R1 | Modeling Access Control With Reflection | Dan Katz | 2025-02-09 | 2025-03 | P3547R0 | SG7 Reflection,EWG Evolution,LEWG Library Evolution,LWG Library |
| P3552R1 | Add a Coroutine Task Type | Dietmar Kühl | 2025-03-16 | 2025-03 | P3552R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3556R0 | Input files are source files | Alisdair Meredith | 2025-03-17 | 2025-03 | CWG Core | |
| P3557R1 | High-Quality Sender Diagnostics with Constexpr Exceptions | Eric Niebler | 2025-02-13 | 2025-03 | P3557R0 | LEWG Library Evolution |
| P3558R1 | Core Language Contracts By Default | Joshua Berne | 2025-02-02 | 2025-03 | P3558R0 | SG21 Contracts,SG23 Safety and Security |
| P3561R1 | Index based coproduct operations on variant, and library wording | Esa Pulkkinen | 2025-01-16 | 2025-03 | P3561R0 | LEWGI SG18: LEWG Incubator |
| P3568R1 | break label; and continue label; | Jan Schultke | 2025-03-13 | 2025-03 | P3568R0 | SG22 Compatibility,EWG Evolution |
| P3570R0 | optional variants in sender/receiver | Fabio Fracassi | 2025-02-10 | 2025-03 | LEWG Library Evolution | |
| P3579R1 | Fix matching of non-type template parameters when matching template template parameters | Matheus Izvekov | 2025-02-10 | 2025-03 | P3579R0 | CWG Core |
| P3589R1 | C++ Profiles: The Framework | Gabriel Dos Reis | 2025-02-03 | 2025-03 | P3589R0 | EWG Evolution |
| P3591R0 | Contextualizing Contracts Concerns | Joshua Berne | 2025-02-03 | 2025-03 | SG21 Contracts,EWG Evolution,LEWG Library Evolution | |
| P3592R0 | Resolving Concerns with const-ification | Joshua Berne | 2025-02-10 | 2025-03 | SG21 Contracts,EWG Evolution | |
| P3599R0 | Initial Implicit Contract Assertions | Joshua Berne | 2025-02-03 | 2025-03 | SG21 Contracts,SG23 Safety and Security,EWG Evolution | |
| P3603R0 | Consteval-only Values and Consteval Variables | Barry Revzin | 2025-03-13 | 2025-03 | EWG Evolution | |
| P3605R0 | isqrt: A function to calculate integer square root of the nonnegative integer | Nikita Sakharin | 2025-02-05 | 2025-03 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution,LWG Library | |
| P3606R0 | On Overload Resolution, Exact Matches and Clever Implementations | Corentin Jabot | 2025-01-27 | 2025-03 | EWG Evolution | |
| P3608R0 | Contracts and profiles: what can we reasonably ship in C++26 | Ville Voutilainen | 2025-02-01 | 2025-03 | EWG Evolution,LEWG Library Evolution | |
| P3611R0 | Dealing with pointer errors: Separating static and dynamic checking | Bjarne Stroustrup | 2025-02-04 | 2025-03 | SG23 Safety and Security,EWG Evolution,LEWG Library Evolution | |
| P3613R0 | On the beating of horses, and other matters | Tim Song | 2025-03-17 | 2025-03 | SG9 Ranges | |
| P3614R0 | Do not remove nor postpone access_context::unchecked | Ville Voutilainen | 2025-02-06 | 2025-03 | EWG Evolution | |
| P3615R0 | C++ Standard Library Ready Issues to be moved in Hagenberg, Feb. 2025 | Jonathan Wakely | 2025-02-07 | 2025-03 | All of WG21 | |
| P3616R0 | Remove contracts on virtual functions for now | Ville Voutilainen | 2025-02-08 | 2025-03 | EWG Evolution | |
| P3618R0 | Allow attaching main to the global module | Michael Spencer | 2025-02-11 | 2025-03 | EWG Evolution | |
| P3619R0 | Counter-examples for P2688R5 | Vlad Serebrennikov | 2025-02-10 | 2025-03 | EWG Evolution | |
| P3619R1 | Counter-examples for P2688R5 | Vlad Serebrennikov | 2025-02-12 | 2025-03 | P3619R0 | EWG Evolution |
| P3620R0 | Concerns with the proposed addition of fibers to C++ 26 | David Chisnall | 2025-02-10 | 2025-03 | EWG Evolution,CWG Core,LWG Library | |
| P3623R0 | Add noexcept to [iterator.range] (LWG 3537) | Arthur O'Dwyer | 2025-02-11 | 2025-03 | LWG Library | |
| P3625R0 | either neither | Michael Florian Hava | 2025-02-11 | 2025-03 | LEWG Library Evolution | |
| P3626R0 | Make predicate exceptions propagate by default | Timur Doumler | 2025-02-11 | 2025-03 | EWG Evolution | |
| P3627R0 | Easy-to-adopt security profiles for preventing RCE (remote code execution) in existing C++ code | Ulfar Erlingsson | 2025-02-11 | 2025-03 | SG23 Safety and Security | |
| P3628R0 | break label; and continue label;, tl; dr | Jan Schultke | 2025-02-12 | 2025-03 | EWGI SG17: EWG Incubator | |
| P3630R0 | Slides for P3568R0 | Jan Schultke | 2025-02-12 | 2025-03 | EWG Evolution | |
| P3632R0 | P3564R0: Make the concurrent forward progress guarantee usable in bulk | Mark Hoemmen | 2025-02-13 | 2025-03 | SG1 Concurrency and Parallelism | |
| P3632R1 | P3564R0: Make the concurrent forward progress guarantee usable in bulk | Mark Hoemmen | 2025-02-13 | 2025-03 | P3632R0 | SG1 Concurrency and Parallelism |
| P3633R0 | A Byte is a Byte | Murat Can Cagri | 2025-02-13 | 2025-03 | EWG Evolution,LEWG Library Evolution | |
| P3635R0 | We shouldn't rush to require either CHAR_BIT==8 or (u)intNN_t | Nevin Liber | 2025-02-13 | 2025-03 | EWG Evolution,LEWG Library Evolution | |
| P3636R0 | LEWG Hagenberg presentation for P3581 No, inplace_vector shouldn't have an Allocator | Nevin Liber | 2025-02-13 | 2025-03 | LEWG Library Evolution | |
| P3637R0 | Inherit std::meta::exception from std::exception | Victor Zverovich | 2025-03-08 | 2025-03 | LEWG Library Evolution | |
| P3638R0 | Core Language Working Group "ready" Issues for the February, 2025 meeting | Jens Maurer | 2025-02-14 | 2025-03 | CWG Core | |
| P3639R0 | The _BitInt Debate | Jan Schultke | 2025-02-20 | 2025-03 | SG6 Numerics,EWG Evolution,LEWG Library Evolution | |
| P3640R0 | Make contracts reliable by default | Jonas Persson | 2025-03-17 | 2025-03 | SG21 Contracts,SG23 Safety and Security,EWG Evolution | |
| P3641R0 | Rename std::observable to std::observable_checkpoint, and add a feature-test macro | Jan Schultke | 2025-03-13 | 2025-03 | LEWG Library Evolution | |
| P3642R0 | Carry-less product: std::clmul | Jan Schultke | 2025-03-13 | 2025-03 | SG6 Numerics,LEWGI SG18: LEWG Incubator | |
| P3643R0 | std::to_signed and std::to_unsigned | Jan Schultke | 2025-03-13 | 2025-03 | LEWG Library Evolution | |
| P3650R0 | 21st Century C++ | Bjarne Stroustrup | 2025-03-05 | 2025-03 | All of WG21 | |
| P3651R0 | Note to the C++ standards committee members | Bjarne Stroustrup | 2025-03-06 | 2025-03 | All of WG21 | |
| P3652R0 | Constexpr floating-point <charconv> functions | Lénárd Szolnoki | 2025-03-15 | 2025-03 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P3654R0 | Slides for P3516 | Giuseppe D'Angelo | 2025-03-09 | 2025-03 | LEWG Library Evolution | |
| P3655R0 | zstring_view | Peter Bindels | 2025-03-17 | 2025-03 | LEWG Library Evolution | |
| P3656R0 | Initial draft proposal for core language UB white paper: Process and major work items | Herb Sutter | 2025-03-11 | 2025-03 | EWG Evolution | |
| P3657R0 | A Grammar for Whitespace Characters | Alisdair Meredith | 2025-03-17 | 2025-03 | CWG Core | |
| P3658R0 | Adjust identifier following new Unicode recommendations | Robin Leroy | 2025-03-13 | 2025-03 | SG16 Unicode | |
| P3660R0 | Improve `reference_wrapper` Ergonomics | Jeremy Rifkin | 2025-03-17 | 2025-03 | LEWGI SG18: LEWG Incubator |
By Bjarne Stroustrup | Feb 10, 2025 12:18 PM | Tags: None
It is now 45+ years since C++ was first conceived. As planned, it evolved to meet challenges, but many developers use C++ as if it was still the previous millennium. This is suboptimal from the perspective of ease of expressing ideas, performance, reliability, and maintainability.
21st Century C++
by Bjarne Stroustrup
About the article:
Here, I present the key concepts on which performant, type safe, and flexible C++ software can be built: resource management, life-time management, error-handling, modularity, and generic programming. At the end, I present ways to ensure that code is contemporary, rather than relying on outdated, unsafe, and hard-to-maintain techniques: guidelines and profiles.
By Timur Doumler | Feb 10, 2025 12:05 PM | Tags: None
In this article, we briefly explain everything you need to know to get started with Contracts as proposed for C++26 in P2900.
Contracts for C++ explained in 5 minutes
by Timur Doumler
From the article:
With P2900, we propose to add contract assertions to the C++ language. This proposal is in the final stages of wording review before being included in the draft Standard for C++26.
It has been suggested by some members of the C++ standard committee that this feature is too large, too complicated, and hard to teach. As it turns out, the opposite is true: contract assertions are actually very simple and can be explained in just five minutes. In this blog post, we will do exactly this!
By Administrator | Jan 13, 2025 04:52 PM | Tags: None
The 2025-01 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| P0149R1 | Generalised member pointers | Jeff Snyder | 2025-01-13 | 2025-01 | P0149R0 | EWG Evolution |
| P0260R14 | C++ Concurrent Queues | Detlef Vollmann | 2025-01-12 | 2025-01 | P0260R13 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0876R19 | fiber_context - fibers without scheduler | Oliver Kowalke | 2025-01-13 | 2025-01 | P0876R18 | EWG Evolution,CWG Core,LWG Library |
| P1030R8 | std::filesystem::path_view | Niall Douglas | 2024-12-21 | 2025-01 | P1030R7 | LEWG Library Evolution |
| P1839R7 | Accessing object representations | Brian Bi | 2025-01-11 | 2025-01 | P1839R6 | CWG Core |
| P2079R6 | System execution context | Lucian Radu Teodorescu | 2025-01-13 | 2025-01 | P2079R5 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2414R5 | Pointer lifetime-end zap proposed solutions | Paul E. McKenney | 2025-01-11 | 2025-01 | P2414R4 | SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library |
| P2434R3 | Nondeterministic pointer provenance | S. Davis Herring | 2025-01-13 | 2025-01 | P2434R2 | SG22 Compatibility,EWG Evolution,CWG Core |
| P2654R1 | Modules and Macros | Alisdair Meredith | 2025-01-13 | 2025-01 | P2654R0 | EWG Evolution,LEWG Library Evolution |
| P2663R6 | Proposal to support interleaved complex values in std::simd | Daniel Towner | 2025-01-13 | 2025-01 | P2663R5 | LEWG Library Evolution |
| P2664R9 | Proposal to extend std::simd with permutation API | Daniel Towner | 2025-01-13 | 2025-01 | P2664R8 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2688R5 | Pattern Matching: `match` Expression | Michael Park | 2025-01-13 | 2025-01 | P2688R4 | EWG Evolution |
| P2719R2 | Type-aware allocation and deallocation functions | Louis Dionne | 2025-01-06 | 2025-01 | P2719R1 | EWG Evolution,CWG Core |
| P2719R3 | Type-aware allocation and deallocation functions | Louis Dionne | 2025-01-08 | 2025-01 | P2719R2 | EWG Evolution,CWG Core |
| P2746R7 | Deprecate and Replace Fenv Rounding Modes | Hans Boehm | 2025-01-12 | 2025-01 | P2746R6 | SG6 Numerics,LEWG Library Evolution |
| P2758R4 | Emitting messages at compile time | Barry Revzin | 2025-01-07 | 2025-01 | P2758R3 | LEWG Library Evolution,CWG Core |
| P2806R3 | do expressions | Barry Revzin | 2025-01-12 | 2025-01 | P2806R2 | EWG Evolution |
| P2825R4 | Overload resolution hook: declcall( unevaluated-call-expression ) | Gašper Ažman | 2025-01-13 | 2025-01 | P2825R3 | EWG Evolution,CWG Core |
| P2830R8 | Standardized Constexpr Type Ordering | Gašper Ažman | 2025-01-09 | 2025-01 | P2830R7 | LWG Library |
| P2830R9 | Standardized Constexpr Type Ordering | Gašper Ažman | 2025-01-10 | 2025-01 | P2830R8 | EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library |
| P2841R6 | Concept and variable-template template-parameters | Corentin Jabot | 2025-01-13 | 2025-01 | P2841R5 | CWG Core |
| P2843R1 | Preprocessing is never undefined | Alisdair Meredith | 2025-01-13 | 2025-01 | P2843R0 | SG22 Compatibility,EWG Evolution |
| P2883R1 | `offsetof` Should Be A Keyword In C++26 | Alisdair Meredith | 2025-01-10 | 2025-01 | P2883R0 | EWGI SG17: EWG Incubator,EWG Evolution |
| P2899R0 | Contracts for C++ - Rationale | Timur Doumler | 2025-01-13 | 2025-01 | SG21 Contracts,EWG Evolution,LEWG Library Evolution | |
| P2900R13 | Contracts for C++ | Joshua Berne | 2025-01-13 | 2025-01 | P2900R12 | CWG Core,LWG Library |
| P2933R3 | std::simd overloads for <bit> header | Daniel Towner | 2025-01-13 | 2025-01 | P2933R2 | LWG Library |
| P2952R2 | auto& operator=(X&&) = default | Arthur O'Dwyer | 2025-01-08 | 2025-01 | P2952R1 | CWG Core |
| P2953R1 | Forbid defaulting operator=(X&&) && | Arthur O'Dwyer | 2025-01-08 | 2025-01 | P2953R0 | EWGI SG17: EWG Incubator |
| P2971R3 | Implication for C++ | Walter E Brown | 2025-01-12 | 2025-01 | P2971R2 | EWG Evolution,LEWG Library Evolution |
| P2988R9 | std::optional<T&> | Steve Downey | 2025-01-13 | 2025-01 | P2988R8 | LEWG Library Evolution,LWG Library |
| P2996R9 | Reflection for C++26 | Barry Revzin | 2025-01-13 | 2025-01 | P2996R8 | EWG Evolution |
| P3019R12 | Vocabulary Types for Composite Class Design | Jonathan Coe | 2025-01-12 | 2025-01 | P3019R11 | LEWG Library Evolution,LWG Library |
| P3045R5 | Quantities and units library | Mateusz Pusz | 2025-01-13 | 2025-01 | P3045R4 | SG6 Numerics,SG16 Unicode,LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
| P3070R2 | Formatting enums | Victor Zverovich | 2025-01-13 | 2025-01 | P3070R1 | LEWG Library Evolution |
| P3081R1 | Core safety profiles for C++26 | Herb Sutter | 2025-01-06 | 2025-01 | P3081R0 | EWG Evolution,LEWG Library Evolution |
| P3086R3 | Proxy: A Pointer-Semantics-Based Polymorphism Library | Mingxin Wang | 2025-01-13 | 2025-01 | P3086R2 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
| P3094R6 | std::basic_fixed_string | Mateusz Pusz | 2025-01-10 | 2025-01 | P3094R5 | LEWG Library Evolution |
| P3111R3 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2025-01-13 | 2025-01 | P3111R2 | EWG Evolution,LEWG Library Evolution |
| P3125R3 | constexpr pointer tagging | Hana Dusíková | 2025-01-13 | 2025-01 | P3125R2 | LEWG Library Evolution |
| P3139R1 | Pointer cast for unique_ptr | Zhihao Yuan | 2024-12-27 | 2025-01 | P3139R0 | LEWG Library Evolution |
| P3148R1 | Formatting of chrono Time Values | Alan Talbot | 2025-01-13 | 2025-01 | P3148R0 | LEWG Library Evolution |
| P3164R3 | Early Diagnostics for Sender Expressions | Eric Niebler | 2025-01-09 | 2025-01 | P3164R2 | LEWG Library Evolution |
| P3176R1 | The Oxford variadic comma | Jan Schultke | 2024-12-18 | 2025-01 | P3176R0 | CWG Core |
| P3179R5 | C++ parallel range algorithms | Ruslan Arutyunyan | 2025-01-13 | 2025-01 | P3179R4 | LEWG Library Evolution |
| P3206R0 | A sender query for completion behaviour | Maikel Nadolski | 2025-01-13 | 2025-01 | SG1 Concurrency and Parallelism | |
| P3229R0 | Making erroneous behaviour compatible with Contracts | Timur Doumler | 2025-01-13 | 2025-01 | SG21 Contracts,EWG Evolution,LEWG Library Evolution | |
| P3289R1 | Consteval blocks | Daveed Vandevoorde | 2025-01-12 | 2025-01 | P3289R0 | EWG Evolution,CWG Core |
| P3347R1 | Invalid/Prospective Pointer Operations | Paul E. McKenney | 2025-01-11 | 2025-01 | P3347R0 | EWG Evolution |
| P3348R2 | C++26 should refer to C23 not C17 | Jonathan Wakely | 2025-01-13 | 2025-01 | P3348R1 | SG6 Numerics,LEWG Library Evolution |
| P3351R2 | views::scan | Yihe Li | 2025-01-12 | 2025-01 | P3351R1 | SG9 Ranges |
| P3367R3 | constexpr coroutines | Hana Dusíková | 2025-01-06 | 2025-01 | P3367R2 | EWG Evolution,LWG Library |
| P3373R1 | Of Operation States and Their Lifetimes | Robert Leahy | 2025-01-11 | 2025-01 | P3373R0 | LEWG Library Evolution |
| P3374R1 | Adding formatter for fpos | Liang Jiaming | 2025-01-07 | 2025-01 | P3374R0 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
| P3375R2 | Reproducible floating-point results | Guy Davidson | 2025-01-13 | 2025-01 | P3375R1 | SG6 Numerics,EWGI SG17: EWG Incubator |
| P3385R3 | Attributes reflection | Aurelien Cassagnes | 2025-01-06 | 2025-01 | P3385R2 | SG7 Reflection |
| P3388R1 | When Do You Know connect Doesn't Throw? | Robert Leahy | 2025-01-11 | 2025-01 | P3388R0 | LEWG Library Evolution |
| P3394R1 | Annotations for Reflection | Daveed Vandevoorde | 2025-01-12 | 2025-01 | P3394R0 | SG7 Reflection,LEWG Library Evolution,CWG Core |
| P3395R0 | Formatting of std::error_code | Victor Zverovich | 2024-12-22 | 2025-01 | SG16 Unicode | |
| P3400R0 | Specifying Contract Assertion Properties with Labels | Joshua Berne | 2025-01-09 | 2025-01 | SG21 Contracts,All of WG21 | |
| P3402R2 | A Safety Profile Verifying Initialization | Marc-André Laverdière | 2025-01-13 | 2025-01 | P3402R1 | SG23 Safety and Security |
| P3407R1 | Make idiomatic usage of `offsetof` well-defined | Brian Bi | 2025-01-11 | 2025-01 | P3407R0 | EWG Evolution |
| P3411R1 | `any_view` | Hui Xie | 2025-01-11 | 2025-01 | P3411R0 | SG9 Ranges,LEWG Library Evolution |
| P3412R1 | String interpolation | Bengt Gustafsson | 2025-01-12 | 2025-01 | P3412R0 | EWGI SG17: EWG Incubator,EWG Evolution |
| P3420R1 | Reflection of Templates | Andrei Alexandrescu | 2025-01-13 | 2025-01 | P3420R0 | SG7 Reflection |
| P3423R1 | Extending User-Generated Diagnostic Messages | Yihe Li | 2025-01-12 | 2025-01 | P3423R0 | EWG Evolution |
| P3425R1 | Reducing operation-state sizes for subobject child operations | Lewis Baker | 2025-01-13 | 2025-01 | P3425R0 | LEWG Library Evolution |
| P3430R2 | simd issues: explicit, unsequenced, identity-element position, and members of disabled simd | Matthias Kretz | 2025-01-13 | 2025-01 | P3430R1 | LEWG Library Evolution |
| P3431R0 | Deprecate const-qualifier on begin/end of views | Jonathan Müller | 2025-01-13 | 2025-01 | SG9 Ranges | |
| P3439R1 | Chained comparisons: Safe, correct, efficient | Herb Sutter | 2025-01-06 | 2025-01 | P3439R0 | EWG Evolution |
| P3475R1 | Defang and deprecate memory_order::consume | Hans Boehm | 2025-01-11 | 2025-01 | P3475R0 | SG1 Concurrency and Parallelism,EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library |
| P3477R2 | There are exactly 8 bits in a byte | JF Bastien | 2025-01-11 | 2025-01 | P3477R1 | LEWG Library Evolution,CWG Core |
| P3480R3 | std::simd is a range | Matthias Kretz | 2025-01-13 | 2025-01 | P3480R2 | LEWG Library Evolution |
| P3481R1 | std::execution::bulk() issues | Lucian Radu Teodorescu | 2025-01-13 | 2025-01 | P3481R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3491R1 | define_static_{string,object,array} | Barry Revzin | 2025-01-12 | 2025-01 | P3491R0 | EWG Evolution,LEWG Library Evolution |
| P3496R0 | Immediate-Escalating Expressions | Barry Revzin | 2025-01-05 | 2025-01 | EWG Evolution,LEWG Library Evolution | |
| P3499R0 | Exploring strict contract predicates | Lisa Lippincott | 2025-01-13 | 2025-01 | SG21 Contracts,EWG Evolution | |
| P3500R0 | Are Contracts "safe"? | Timur Doumler | 2025-01-13 | 2025-01 | EWG Evolution | |
| P3501R0 | The ad-dressing of cats | S. Davis Herring | 2025-01-10 | 2025-01 | EWG Evolution,CWG Core,LWG Library | |
| P3506R0 | P2900 Is Still not Ready for C++26 | Gabriel Dos Reis | 2025-01-13 | 2025-01 | EWG Evolution | |
| P3516R0 | Uninitialized algorithms for relocation | Louis Dionne | 2025-01-13 | 2025-01 | LEWG Library Evolution | |
| P3527R1 | Pattern Matching: *variant-like* and `std::expected` | Michael Park | 2025-01-13 | 2025-01 | P3527R0 | EWG Evolution,LEWG Library Evolution |
| P3533R1 | constexpr virtual inheritance | Hana Dusíková | 2025-01-10 | 2025-01 | P3533R0 | EWG Evolution |
| P3534R0 | Avoid UB When Compiling Code That Violates Library Specification | Alisdair Meredith | 2025-01-13 | 2025-01 | LWG Library | |
| P3541R1 | Violation handlers vs `noexcept` | Andrzej Krzemieński | 2025-01-06 | 2025-01 | P3541R0 | SG21 Contracts,SG23 Safety and Security,EWG Evolution |
| P3546R0 | Explicit return type deduction for std::numeric_limits and numbers | Thomas Mejstrik | 2024-12-19 | 2025-01 | LEWGI SG18: LEWG Incubator | |
| P3547R0 | Modeling Access Control With Reflection | Dan Katz | 2025-01-09 | 2025-01 | SG7 Reflection,LEWG Library Evolution | |
| P3548R0 | P1030 `std::filesystem::path_view` forward progress options | Niall Douglas | 2025-01-13 | 2025-01 | LEWG Library Evolution | |
| P3549R0 | Diverging expressions | Barry Revzin | 2025-01-12 | 2025-01 | EWG Evolution | |
| P3550R0 | Imports cannot ... | Alisdair Meredith | 2025-01-13 | 2025-01 | EWGI SG17: EWG Incubator,LEWGI SG18: LEWG Incubator | |
| P3552R0 | Add a Coroutine Lazy Type | Dietmar Kühl | 2025-01-13 | 2025-01 | SG1 Concurrency and Parallelism,LEWG Library Evolution | |
| P3554R0 | Non-transient allocation with vector and basic_string | Barry Revzin | 2025-01-05 | 2025-01 | EWG Evolution | |
| P3555R0 | An infinite range concept | Jonathan Müller | 2025-01-13 | 2025-01 | SG9 Ranges | |
| P3557R0 | High-Quality Sender Diagnostics with Constexpr Exceptions | Eric Niebler | 2025-01-12 | 2025-01 | LEWG Library Evolution | |
| P3558R0 | Core Language Contracts By Default | Joshua Berne | 2025-01-12 | 2025-01 | SG21 Contracts,SG23 Safety and Security | |
| P3559R0 | Trivial relocation: One trait or two? | Arthur O'Dwyer | 2025-01-08 | 2025-01 | LEWG Library Evolution | |
| P3560R0 | Error Handling in Reflection | Barry Revzin | 2025-01-12 | 2025-01 | EWG Evolution,LEWG Library Evolution | |
| P3561R0 | Index based coproduct operations on variant, and library wording | Esa Pulkkinen | 2025-01-13 | 2025-01 | LEWGI SG18: LEWG Incubator | |
| P3564R0 | Make the concurrent forward progress guarantee usable in `bulk` | Mark Hoemmen | 2025-01-12 | 2025-01 | SG1 Concurrency and Parallelism | |
| P3565R0 | Virtual floating-point values | S. Davis Herring | 2025-01-10 | 2025-01 | SG6 Numerics | |
| P3566R0 | You shall not pass `char*` - Safety concerns working with unbounded null-terminated strings | Marco Foco | 2025-01-13 | 2025-01 | SG23 Safety and Security,LEWG Library Evolution,LWG Library,ARG ABI Review Group | |
| P3567R0 | `flat_meow` Fixes | Hui Xie | 2025-01-11 | 2025-01 | LEWG Library Evolution,LWG Library | |
| P3568R0 | break label; and continue label; | Jan Schultke | 2025-01-12 | 2025-01 | EWGI SG17: EWG Incubator,SG22 Compatibility | |
| P3569R0 | Split define_aggregate from Reflection | Shafik Yaghmour | 2025-01-11 | 2025-01 | EWG Evolution | |
| P3572R0 | Pattern matching | Bjarne Stroustrup | 2025-01-12 | 2025-01 | EWG Evolution | |
| P3573R0 | Contract concerns | Bjarne Stroustrup | 2025-01-12 | 2025-01 | SG21 Contracts,EWG Evolution,LEWG Library Evolution | |
| P3574R0 | Constexpr Callables | Steve Downey | 2025-01-13 | 2025-01 | LEWG Library Evolution,LWG Library | |
| P3575R0 | SG14: Low Latency/Games/Embedded/Financial Trading virtual Meeting Minutes 2024/11/13 | Michael Wong | 2025-01-12 | 2025-01 | SG14 Low Latency | |
| P3576R0 | SG19: Machine Learning virtual Meeting Minutes to 2024/11/14-2024/12/12 | Michael Wong | 2025-01-12 | 2025-01 | SG19 Machine Learning | |
| P3577R0 | Requiring a non-throwing system-provided (default) contract-violation handler | John Lakos | 2025-01-12 | 2025-01 | SG21 Contracts,EWG Evolution | |
| P3578R0 | Language Safety and Grandma Safety | Ryan McDougall | 2025-01-13 | 2025-01 | SG21 Contracts,SG23 Safety and Security,EWG Evolution | |
| P3579R0 | Fix matching of non-type template parameters when matching template template parameters | Matheus Izvekov | 2025-01-13 | 2025-01 | CWG Core | |
| P3580R0 | The Naming of Things | Alan Talbot | 2025-01-13 | 2025-01 | EWG Evolution,LEWG Library Evolution | |
| P3581R0 | No, inplace_vector shouldn't have an Allocator | Nevin Liber | 2025-01-13 | 2025-01 | LEWG Library Evolution | |
| P3582R0 | Observed a contract violation? Skip subsequent assertions! | Andrzej Krzemieński | 2025-01-13 | 2025-01 | SG21 Contracts,EWG Evolution | |
| P3583R0 | Contracts, Types & Functions | Jonas Persson | 2025-01-13 | 2025-01 | SG21 Contracts | |
| P3584R0 | Enrich Facade Creation Facilities for the Pointer-Semantics-Based Polymorphism Library - Proxy | Mingxin Wang | 2025-01-13 | 2025-01 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P3585R0 | allocator_traits::is_internally_relocatable | Pablo Halpern | 2025-01-13 | 2025-01 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P3586R0 | The Plethora of Problems With Profiles | Corentin Jabot | 2025-01-13 | 2025-01 | EWG Evolution | |
| P3587R0 | Reconsider reflection access for C++26 | Lauri Vasama | 2025-01-13 | 2025-01 | SG7 Reflection,EWG Evolution | |
| P3588R0 | Allow static data members in local and unnamed classes | Brian Bi | 2025-01-13 | 2025-01 | EWG Evolution | |
| P3589R0 | C++ Profiles: The Framework | Gabriel Dos Reis | 2025-01-13 | 2025-01 | EWG Evolution | |
| P3590R0 | Constexpr Coroutines Burdens | Daveed Vandevoorde | 2025-01-13 | 2025-01 | EWG Evolution,CWG Core |
By Administrator | Dec 17, 2024 04:50 PM | Tags: None
The 2024-12 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4977 | 2025-11 Kona meeting information | Herb Sutter | 2024-12-16 | 2024-12 | All of WG21 | |
| N4995 | WG21 agenda: 18-23 November 2024, Wroclaw, Poland | John Spicer | 2024-10-28 | 2024-12 | All of WG21 | |
| N4997 | Hagenberg Meeting Invitation and Information | Michael Hava | 2024-11-19 | 2024-12 | All of WG21 | |
| N4998 | WG21 2024-11 Wroclaw Admin telecon minutes | Nina Ranns | 2024-11-20 | 2024-12 | All of WG21 | |
| N4999 | WG21 agenda: 10-15 February 2025, Hagenberg, Austria | John Spicer | 2024-12-02 | 2024-12 | All of WG21 | |
| N5000 | WG21 November 2024 Hybrid meeting Minutes of Meeting | Nina Ranns | 2024-12-11 | 2024-12 | All of WG21 | |
| N5001 | Working Draft, Programming Languages -- C++ | Thomas Köppe | 2024-12-17 | 2024-12 | All of WG21 | |
| N5002 | Editors' Report, Programming Languages -- C++ | Thomas Köppe | 2024-12-17 | 2024-12 | All of WG21 | |
| N5003 | 2025 WG21 admin telecon meetings | Herb Sutter | 2024-12-16 | 2024-12 | All of WG21 | |
| P0178R1 | Allocators and swap | Alisdair Meredith | 2024-12-17 | 2024-12 | P0178R0 | LWG Library |
| P0260R12 | C++ Concurrent Queues | Detlef Vollmann | 2024-11-21 | 2024-12 | P0260R11 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0260R13 | C++ Concurrent Queues | Detlef Vollmann | 2024-12-10 | 2024-12 | P0260R12 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0447R27 | Introduction of std::hive to the standard library | Matt Bentley | 2024-12-03 | 2024-12 | P0447R26 | SG14 Low Latency,LEWG Library Evolution,LWG Library,All of WG21 |
| P0447R28 | Introduction of std::hive to the standard library | Matt Bentley | 2024-12-16 | 2024-12 | P0447R27 | SG14 Low Latency,LEWG Library Evolution,LWG Library,All of WG21 |
| P0472R3 | Put std::monostate in <utility> | David Sankel | 2024-11-18 | 2024-12 | P0472R2 | LEWG Library Evolution |
| P1040R7 | std::embed and #depend | JeanHeyd Meneide | 2024-12-15 | 2024-12 | P1040R6 | EWG Evolution |
| P1061R10 | Structured Bindings can introduce a Pack | Barry Revzin | 2024-11-24 | 2024-12 | P1061R9 | CWG Core |
| P1928R13 | std::simd - Merge data-parallel types from the Parallelism TS 2 | Matthias Kretz | 2024-11-22 | 2024-12 | P1928R12 | LWG Library |
| P1928R14 | std::simd - Merge data-parallel types from the Parallelism TS 2 | Matthias Kretz | 2024-11-22 | 2024-12 | P1928R13 | LWG Library |
| P1928R15 | std::simd - Merge data-parallel types from the Parallelism TS 2 | Matthias Kretz | 2024-11-22 | 2024-12 | P1928R14 | LWG Library |
| P1967R13 | #embed - a simple, scannable preprocessor-based resource acquisition method | JeanHeyd Meneide | 2024-12-15 | 2024-12 | P1967R12 | EWG Evolution,CWG Core |
| P2014R1 | Proposed resolution for US061/US062 - aligned allocation of coroutine frames | Lewis Baker | 2024-10-29 | 2024-12 | P2014R0 | CWG Core |
| P2014R2 | Proposed resolution for US061/US062 - aligned allocation of coroutine frames | Lewis Baker | 2024-10-29 | 2024-12 | P2014R1 | CWG Core |
| P2319R3 | Prevent path presentation problems | Victor Zverovich | 2024-11-18 | 2024-12 | P2319R2 | LEWG Library Evolution |
| P2319R4 | Prevent path presentation problems | Victor Zverovich | 2024-12-07 | 2024-12 | P2319R3 | LEWG Library Evolution |
| P2645R1 | path_view: a design that took a wrong turn | Victor Zverovich | 2024-11-17 | 2024-12 | P2645R0 | LEWG Library Evolution |
| P2645R1 | path_view: a design that took a wrong turn | Victor Zverovich | 2024-11-17 | 2024-12 | P2645R0 | LEWG Library Evolution |
| P2656R4 | WITHDRAWN: C++ Ecosystem International Standard | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P2656R3 | All of WG21 |
| P2686R5 | constexpr structured bindings and references to constexpr variables | Corentin Jabot | 2024-11-12 | 2024-12 | P2686R4 | CWG Core |
| P2688R4 | Pattern Matching: `match` Expression | Michael Park | 2024-12-17 | 2024-12 | P2688R3 | EWG Evolution |
| P2717R6 | WITHDRAWN: Tool Introspection | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P2717R5 | All of WG21 |
| P2781R5 | std::constexpr_wrapper | Zach Laine | 2024-11-14 | 2024-12 | P2781R4 | LEWG Library Evolution |
| P2786R10 | Trivial Relocatability For C++26 | Pablo Halpern | 2024-11-21 | 2024-12 | P2786R9 | LEWG Library Evolution |
| P2786R11 | Trivial Relocatability For C++26 | Pablo Halpern | 2024-12-17 | 2024-12 | P2786R10 | EWG Evolution,LEWG Library Evolution |
| P2786R9 | Trivial Relocatability For C++26 | Pablo Halpern | 2024-11-15 | 2024-12 | P2786R8 | EWG Evolution,LEWG Library Evolution |
| P2825R3 | Overload resolution hook: declcall( unevaluated-call-expression ) | Gašper Ažman | 2024-12-16 | 2024-12 | P2825R2 | EWG Evolution,CWG Core |
| P2830R5 | Standardized Constexpr Type Ordering | Gašper Ažman | 2024-11-20 | 2024-12 | P2830R4 | EWG Evolution,LEWG Library Evolution,CWG Core |
| P2830R6 | Standardized Constexpr Type Ordering | Gašper Ažman | 2024-11-20 | 2024-12 | P2830R5 | EWG Evolution,LEWG Library Evolution,CWG Core |
| P2830R7 | Standardized Constexpr Type Ordering | Gašper Ažman | 2024-11-21 | 2024-12 | P2830R6 | EWG Evolution,LEWG Library Evolution,CWG Core |
| P2835R7 | Expose std::atomic_ref's object address | Gonzalo Brito Gadeschi | 2024-11-18 | 2024-12 | P2835R6 | LWG Library |
| P2846R5 | reserve_hint: Eagerly reserving memory for not-quite-sized lazy ranges | Corentin Jabot | 2024-11-27 | 2024-12 | P2846R4 | LEWG Library Evolution |
| P2863R8 | Review Annex D for C++26 | Alisdair Meredith | 2024-12-13 | 2024-12 | P2863R7 | EWG Evolution,LEWG Library Evolution |
| P2865R6 | Remove Deprecated Array Comparisons from C++26 | Alisdair Meredith | 2024-11-22 | 2024-12 | P2865R5 | CWG Core |
| P2866R5 | Remove Deprecated Volatile Features From C++26 | Alisdair Meredith | 2024-12-17 | 2024-12 | P2866R4 | EWG Evolution,CWG Core,LWG Library |
| P2897R6 | aligned_accessor: An mdspan accessor expressing pointer overalignment | Mark Hoemmen | 2024-11-18 | 2024-12 | P2897R5 | LEWG Library Evolution,LWG Library |
| P2897R7 | aligned_accessor: An mdspan accessor expressing pointer overalignment | Mark Hoemmen | 2024-11-22 | 2024-12 | P2897R6 | LWG Library |
| P2900R11 | Contracts for C++ | Joshua Berne | 2024-11-19 | 2024-12 | P2900R10 | EWG Evolution,LEWG Library Evolution |
| P2900R12 | Contracts for C++ | Joshua Berne | 2024-12-17 | 2024-12 | P2900R11 | CWG Core,LWG Library |
| P2996R8 | Reflection for C++26 | Barry Revzin | 2024-12-16 | 2024-12 | P2996R7 | EWG Evolution |
| P3008R3 | Atomic floating-point min/max | Gonzalo Brito Gadeschi | 2024-11-18 | 2024-12 | P3008R2 | LWG Library |
| P3016R5 | Resolve inconsistencies in begin/end for valarray and braced initializer lists | Arthur O'Dwyer | 2024-12-16 | 2024-12 | P3016R4 | LEWG Library Evolution |
| P3019R11 | Vocabulary Types for Composite Class Design | Jonathan Coe | 2024-11-23 | 2024-12 | P3019R10 | LEWG Library Evolution,LWG Library |
| P3037R4 | constexpr std::shared_ptr | Paul Keir | 2024-10-21 | 2024-12 | P3037R3 | LEWG Library Evolution |
| P3045R4 | Quantities and units library | Mateusz Pusz | 2024-11-15 | 2024-12 | P3045R3 | SG6 Numerics,SG16 Unicode,LEWG Library Evolution |
| P3050R3 | Fix C++26 by optimizing linalg::conjugated for noncomplex value types | Mark Hoemmen | 2024-10-29 | 2024-12 | P3050R2 | LEWG Library Evolution |
| P3051R3 | WITHDRAWN: Structured Response Files | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P3051R2 | All of WG21 |
| P3068R5 | Allowing exception throwing in constant-evaluation | Hana Dusíková | 2024-11-19 | 2024-12 | P3068R4 | CWG Core,LWG Library |
| P3068R6 | Allowing exception throwing in constant-evaluation | Hana Dusíková | 2024-11-19 | 2024-12 | P3068R5 | CWG Core,LWG Library |
| P3074R5 | trivial unions (was std::uninitialized<T>) | Barry Revzin | 2024-12-17 | 2024-12 | P3074R4 | EWG Evolution |
| P3096R4 | Function Parameter Reflection in Reflection for C++26 | Adam Lach | 2024-11-21 | 2024-12 | P3096R3 | LEWG Library Evolution |
| P3096R5 | Function Parameter Reflection in Reflection for C++26 | Adam Lach | 2024-12-14 | 2024-12 | P3096R4 | LEWG Library Evolution,LWG Library |
| P3098R1 | Contracts for C++: Postcondition captures | Timur Doumler | 2024-12-11 | 2024-12 | P3098R0 | SG21 Contracts,EWG Evolution |
| P3111R1 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2024-11-18 | 2024-12 | P3111R0 | SG1 Concurrency and Parallelism |
| P3111R2 | Atomic Reduction Operations | Gonzalo Brito Gadeschi | 2024-11-25 | 2024-12 | P3111R1 | EWG Evolution,LEWG Library Evolution |
| P3117R1 | Extending Conditionally Borrowed | Zach Laine | 2024-12-14 | 2024-12 | P3117R0 | SG9 Ranges,LEWG Library Evolution |
| P3125R2 | constexpr pointer tagging | Hana Dusíková | 2024-11-27 | 2024-12 | P3125R1 | LEWG Library Evolution |
| P3136R1 | Retiring niebloids | Tim Song | 2024-11-18 | 2024-12 | P3136R0 | LWG Library |
| P3138R4 | views::cache_latest | Tim Song | 2024-10-23 | 2024-12 | P3138R3 | LEWG Library Evolution,LWG Library |
| P3138R5 | views::cache_latest | Tim Song | 2024-11-18 | 2024-12 | P3138R4 | LWG Library |
| P3146R2 | Clarifying std::variant converting construction | Giuseppe D'Angelo | 2024-11-02 | 2024-12 | P3146R1 | LEWG Library Evolution,LWG Library |
| P3149R7 | async_scope -- Creating scopes for non-sequential concurrency | Ian Petersen | 2024-11-18 | 2024-12 | P3149R6 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3149R8 | async_scope -- Creating scopes for non-sequential concurrency | Ian Petersen | 2024-11-22 | 2024-12 | P3149R7 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3152R1 | Add missing constructors and assignment for indirect and polymorphic | Jonathan Coe | 2024-11-21 | 2024-12 | P3152R0 | LEWG Library Evolution |
| P3179R4 | C++ parallel range algorithms | Ruslan Arutyunyan | 2024-12-10 | 2024-12 | P3179R3 | LEWG Library Evolution |
| P3185R0 | A proposed direction for C++ Standard Networking based on IETF TAPS | Thomas Rodgers | 2024-12-14 | 2024-12 | SG4 Networking | |
| P3204R0 | Why Contracts? | Joshua Berne | 2024-11-07 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3222R1 | Fix C++26 by adding transposed special cases for P2642 layouts | Mark Hoemmen | 2024-10-29 | 2024-12 | P3222R0 | LEWG Library Evolution |
| P3227R1 | Fixing the library API for contract violation handling | Gašper Ažman | 2024-10-24 | 2024-12 | P3227R0 | SG21 Contracts,LEWG Library Evolution |
| P3230R1 | views::unchecked_(take|drop) | Hewill Kang | 2024-12-01 | 2024-12 | P3230R0 | SG9 Ranges,LEWG Library Evolution,LWG Library |
| P3232R1 | User-defined erroneous behaviour | Thomas Köppe | 2024-12-15 | 2024-12 | P3232R0 | SG12 Undefined and Unspecified Behavior,SG23 Safety and Security,EWG Evolution,LEWG Library Evolution |
| P3237R2 | Matrix Representation of Contract Semantics | Andrei Zissu | 2024-10-23 | 2024-12 | P3237R1 | SG21 Contracts |
| P3247R2 | Deprecate the notion of trivial types | Jens Maurer | 2024-10-28 | 2024-12 | P3247R1 | CWG Core,LWG Library |
| P3261R2 | Revisiting `const`-ification in Contract Assertions | Joshua Berne | 2024-11-25 | 2024-12 | P3261R1 | SG21 Contracts,EWG Evolution |
| P3284R2 | `write_env` and `unstoppable` Sender Adaptors | Eric Niebler | 2024-11-21 | 2024-12 | P3284R1 | LEWG Library Evolution |
| P3287R2 | Exploration of namespaces for std::simd | Matthias Kretz | 2024-11-13 | 2024-12 | P3287R1 | LEWG Library Evolution |
| P3296R3 | let_async_scope | Anthony Williams | 2024-11-19 | 2024-12 | P3296R2 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3299R3 | Range constructors for std::simd | Daniel Towner | 2024-12-17 | 2024-12 | P3299R2 | LEWG Library Evolution,LWG Library |
| P3309R3 | constexpr atomic and atomic_ref | Hana Dusíková | 2024-12-16 | 2024-12 | P3309R2 | LWG Library |
| P3310R5 | Solving issues introduced by relaxed template template parameter matching | Matheus Izvekov | 2024-11-21 | 2024-12 | P3310R4 | EWG Evolution,CWG Core |
| P3319R2 | Add an iota object for simd (and more) | Matthias Kretz | 2024-11-19 | 2024-12 | P3319R1 | LEWG Library Evolution |
| P3323R1 | cv-qualified types in atomic and atomic_ref | Gonzalo Brito Gadeschi | 2024-11-18 | 2024-12 | P3323R0 | LWG Library |
| P3325R4 | A Utility for Creating Execution Environments | Eric Niebler | 2024-11-21 | 2024-12 | P3325R3 | LWG Library |
| P3325R5 | A Utility for Creating Execution Environments | Eric Niebler | 2024-11-22 | 2024-12 | P3325R4 | LWG Library |
| P3329R0 | Healing the C++ Filter View | Nicolai Josuttis | 2024-11-13 | 2024-12 | SG9 Ranges,LEWG Library Evolution,LWG Library | |
| P3335R3 | Structured Core Options | René Ferdinand Rivera Morell | 2024-11-21 | 2024-12 | P3335R2 | SG15 Tooling |
| P3335R4 | WITHDRAWN: Structured Core Options | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P3335R3 | All of WG21 |
| P3339R1 | WITHDRAWN: C++ Ecosystem IS Open License | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P3339R0 | All of WG21 |
| P3342R1 | Working Draft, Standard for C++ Ecosystem | René Ferdinand Rivera Morell | 2024-11-21 | 2024-12 | P3342R0 | EWG Evolution,CWG Core |
| P3342R2 | WITHDRAWN: Working Draft, Standard for C++ Ecosystem | René Ferdinand Rivera Morell | 2024-12-16 | 2024-12 | P3342R1 | All of WG21 |
| P3355R2 | Fix submdspan for C++26 | Mark Hoemmen | 2024-10-29 | 2024-12 | P3355R1 | LWG Library |
| P3367R1 | constexpr coroutines | Hana Dusíková | 2024-11-29 | 2024-12 | P3367R0 | CWG Core |
| P3367R2 | constexpr coroutines | Hana Dusíková | 2024-12-16 | 2024-12 | P3367R1 | EWG Evolution,LWG Library |
| P3371R3 | Fix C++26 by making the rank-1, rank-2, rank-k, and rank-2k updates consistent with the BLAS | Mark Hoemmen | 2024-10-29 | 2024-12 | P3371R2 | LEWG Library Evolution |
| P3378R1 | constexpr exception types | Hana Dusíková | 2024-12-16 | 2024-12 | P3378R0 | LEWG Library Evolution |
| P3380R1 | Extending support for class types as non-type template parameters | Barry Revzin | 2024-12-17 | 2024-12 | P3380R0 | EWG Evolution |
| P3383R1 | mdspan.at() | Stephan Lachnit | 2024-11-23 | 2024-12 | P3383R0 | LEWG Library Evolution |
| P3385R2 | Attributes reflection | Aurelien Cassagnes | 2024-12-11 | 2024-12 | P3385R1 | SG7 Reflection |
| P3386R1 | Static Analysis of Contracts with P2900 | Joshua Berne | 2024-11-25 | 2024-12 | P3386R0 | EWG Evolution |
| P3396R1 | std::execution wording fixes | Lewis Baker | 2024-11-19 | 2024-12 | P3396R0 | LWG Library |
| P3409R1 | Enabling more efficient stop-token based cancellation of senders | Lewis Baker | 2024-11-17 | 2024-12 | P3409R0 | SG1 Concurrency and Parallelism |
| P3422R1 | Allow main function in named modules | Chuanqi Xu | 2024-11-27 | 2024-12 | P3422R0 | EWG Evolution |
| P3424R0 | Define Delete With Throwing Exception Specification | Alisdair Meredith | 2024-12-17 | 2024-12 | LEWGI SG18: LEWG Incubator,EWG Evolution | |
| P3427R1 | Hazard Pointer Synchronous Reclamation | Maged Michael | 2024-12-11 | 2024-12 | P3427R0 | SG1 Concurrency and Parallelism |
| P3428R1 | Hazard Pointer Batches | Maged Michael | 2024-12-11 | 2024-12 | P3428R0 | SG1 Concurrency and Parallelism |
| P3429R1 | Reflection header should minimize standard library dependencies | Jonathan Müller | 2024-11-29 | 2024-12 | P3429R0 | LEWG Library Evolution |
| P3430R1 | simd issues: explicit, unsequenced, identity-element position, and members of disabled simd | Matthias Kretz | 2024-11-22 | 2024-12 | P3430R0 | LEWG Library Evolution |
| P3436R1 | Strategy for removing safety-related undefined behavior by default | Herb Sutter | 2024-11-07 | 2024-12 | P3436R0 | SG23 Safety and Security,EWG Evolution |
| P3437R1 | Proposed principles: Reflect C++, generate C++ (by default) | Herb Sutter | 2024-11-07 | 2024-12 | P3437R0 | SG7 Reflection,EWG Evolution |
| P3449R1 | constexpr std::generator | Hana Dusíková | 2024-12-16 | 2024-12 | P3449R0 | LWG Library |
| P3466R1 | (Re)affirm design principles for future C++ evolution | Herb Sutter | 2024-11-24 | 2024-12 | P3466R0 | EWG Evolution |
| P3468R0 | 2024-10 Library Evolution Poll Outcomes | Inbal Levi | 2024-12-16 | 2024-12 | LEWG Library Evolution | |
| P3471R1 | Standard Library Hardening | Konstantin Varlamov | 2024-11-21 | 2024-12 | P3471R0 | SG23 Safety and Security,LEWG Library Evolution |
| P3471R2 | Standard Library Hardening | Konstantin Varlamov | 2024-12-14 | 2024-12 | P3471R1 | SG23 Safety and Security,LEWG Library Evolution |
| P3477R1 | There are exactly 8 bits in a byte | JF Bastien | 2024-11-21 | 2024-12 | P3477R0 | SG22 Compatibility,LEWG Library Evolution,CWG Core |
| P3480R1 | std::simd is a range | Matthias Kretz | 2024-11-13 | 2024-12 | P3480R0 | SG9 Ranges,LEWG Library Evolution |
| P3480R2 | std::simd is a range | Matthias Kretz | 2024-11-22 | 2024-12 | P3480R1 | LEWG Library Evolution |
| P3482R0 | Proposed API for creating TAPS based networking connections | Thomas W Rodgers | 2024-12-14 | 2024-12 | SG4 Networking | |
| P3483R0 | Contracts for C++: Pre-Wroclaw technical clarifications | Timur Doumler | 2024-10-31 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3483R1 | Contracts for C++: Pre-Wroclaw technical clarifications | Timur Doumler | 2024-11-04 | 2024-12 | P3483R0 | SG21 Contracts,EWG Evolution |
| P3484R0 | Postconditions odr-using a parameter modified in an overriding function | Timur Doumler | 2024-11-01 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3484R1 | Postconditions odr-using a parameter modified in an overriding function | Timur Doumler | 2024-11-07 | 2024-12 | P3484R0 | SG21 Contracts,EWG Evolution |
| P3484R2 | Postconditions odr-using a parameter modified in an overriding function | Timur Doumler | 2024-11-14 | 2024-12 | P3484R1 | SG21 Contracts,EWG Evolution |
| P3485R0 | Grouping using declarations with braces | Barry Revzin | 2024-10-29 | 2024-12 | EWG Evolution | |
| P3487R0 | Postconditions odr-using a parameter that may be passed in registers | Timur Doumler | 2024-11-07 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3488R0 | Floating-Point Excess Precision | Matthias Kretz | 2024-11-14 | 2024-12 | SG6 Numerics,EWG Evolution | |
| P3488R1 | Floating-Point Excess Precision | Matthias Kretz | 2024-11-20 | 2024-12 | P3488R0 | EWG Evolution |
| P3489R0 | Postconditions odr-using a parameter of dependent type | Timur Doumler | 2024-11-07 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3490R0 | Justification for ranges as the output of parallel range algorithms | Alexey Kukanov | 2024-11-14 | 2024-12 | SG1 Concurrency and Parallelism,SG9 Ranges | |
| P3491R0 | define_static_{string,object,array} | Barry Revzin | 2024-12-15 | 2024-12 | LEWG Library Evolution | |
| P3492R0 | Sized deallocation for placement new | Lauri Vasama | 2024-11-22 | 2024-12 | EWGI SG17: EWG Incubator | |
| P3493R0 | Ruminations on reflection and access | Ville Voutilainen | 2024-11-10 | 2024-12 | SG7 Reflection,LEWG Library Evolution | |
| P3495R0 | Remarks on Basic Statistics, P1708R9 | Oliver Rosten | 2024-11-13 | 2024-12 | SG19 Machine Learning,LEWG Library Evolution,LWG Library | |
| P3497R0 | Guarded Objects | Jan Wilmans | 2024-11-11 | 2024-12 | SG1 Concurrency and Parallelism | |
| P3498R0 | Stop the Bleeding but, First, Do No Harm | Gabriel Dos Reis | 2024-11-14 | 2024-12 | SG23 Safety and Security,EWG Evolution | |
| P3502R0 | Slides for D2900R11 - Contracts for C++ | Timur Doumler | 2024-11-18 | 2024-12 | EWG Evolution | |
| P3503R0 | Make type-erased allocator use in promise and packaged_task consistent | Nicolas Morales | 2024-11-21 | 2024-12 | LEWG Library Evolution | |
| P3504R0 | C++ Standard Library Ready Issues to be moved in Wroclaw, Nov. 2024 | Jonathan Wakely | 2024-11-18 | 2024-12 | All of WG21 | |
| P3508R0 | Wording for constexpr for specialized memory algorithms | Giuseppe D'Angelo | 2024-11-20 | 2024-12 | LWG Library | |
| P3510R0 | Leftover properties of `this` in constructor preconditions | Nathan Myers | 2024-11-20 | 2024-12 | SG21 Contracts | |
| P3510R1 | Leftover properties of `this` in constructor preconditions | Nathan Myers | 2024-11-21 | 2024-12 | P3510R0 | SG21 Contracts |
| P3510R2 | Leftover properties of `this` in constructor preconditions | Nathan Myers | 2024-12-04 | 2024-12 | P3510R1 | SG21 Contracts |
| P3517R0 | Slides presented to LEWG on trivial relocation in Wroclaw | Alisdair Meredith | 2024-11-20 | 2024-12 | LEWG Library Evolution | |
| P3518R0 | Slides for Standardized Constexpr Type Ordering | Gašper Ažman | 2024-11-20 | 2024-12 | EWG Evolution | |
| P3519R0 | Slides for P3425 presentation to LEWG | Lewis Baker | 2024-11-20 | 2024-12 | LEWG Library Evolution | |
| P3520R0 | Wroclaw Technical Fixes to Contracts | Timur Doumler | 2024-11-21 | 2024-12 | SG21 Contracts,EWG Evolution | |
| P3521R0 | Pattern Matching: Customization Point for Open Sum Types | Michael Park | 2024-12-17 | 2024-12 | EWG Evolution,LEWG Library Evolution | |
| P3524R0 | Core Language Working Group "ready" Issues for the November, 2024 meeting | Jens Maurer | 2024-11-23 | 2024-12 | CWG Core | |
| P3525R0 | Explicit Implicit Template Regions | Barry Revzin | 2024-12-16 | 2024-12 | EWG Evolution | |
| P3527R0 | Pattern Matching: *variant-like* and `std::expected` | Michael Park | 2024-12-17 | 2024-12 | EWG Evolution,LEWG Library Evolution | |
| P3530R0 | Intrinsic for reading uninitialized memory | Boleyn Su | 2024-12-17 | 2024-12 | EWGI SG17: EWG Incubator,EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library |
By Blog Staff | Oct 28, 2024 10:31 AM | Tags: None
A post I wrote back in 2023 When an empty destructor is required resulted in feedback that I'd like to address in today's post.
Smart Pointers and the Pointer to Implementation Idiom
by Andreas Fertig
From the article:
In the 2023 post, I briefly mentioned PImpl idiom. I did not intend to make it the theme of the post. However, I got various questions about PImpl and smart pointers.
The goal of PImpl is to hide implementation details from clients. Since you can declare a pointer of an unknown class, you can shift the entire implementation of such an anonymous class into a
.cppfile. That way, no client can see any details. Another benefit is that changes to that.cppfile result in only minor recompiles. Maintaining the same in a header file would cause all.cppfiles, including this header, to recompile. At least the speed-up part is since C++20's modules are no longer necessary. And as long as you don't want to hide classified implementation in the.cppfile modules, it also gives you the ability to mark constructs as private.
By Administrator | Oct 17, 2024 09:36 PM | Tags: None
The 2024-10 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4991 | 2025 Sofia Meeting Invitation and Information | Vassil Vassilev | 2024-10-16 | 2024-10 | All of WG21 | |
| N4993 | Working Draft, Programming Languages -- C++ | Thomas Köppe | 2024-10-16 | 2024-10 | All of WG21 | |
| N4994 | Editors' Report, Programming Languages -- C++ | Thomas Köppe | 2024-10-16 | 2024-10 | All of WG21 | |
| P0260R11 | C++ Concurrent Queues | Detlef Vollmann | 2024-10-12 | 2024-10 | P0260R10 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P0707R5 | Metaclass functions for generative C++ | Herb Sutter | 2024-10-15 | 2024-10 | P0707R4 | SG7 Reflection,EWG Evolution |
| P0876R18 | fiber_context - fibers without scheduler | Oliver Kowalke | 2024-10-16 | 2024-10 | P0876R17 | EWG Evolution,CWG Core,LWG Library |
| P1144R12 | std::is_trivially_relocatable | Arthur O'Dwyer | 2024-10-14 | 2024-10 | P1144R11 | EWGI SG17: EWG Incubator |
| P1255R14 | A view of 0 or 1 elements: views::nullable And a concept to constrain maybes | Steve Downey | 2024-10-16 | 2024-10 | P1255R13 | LEWG Library Evolution,LWG Library |
| P1306R3 | Expansion statements | Dan Katz | 2024-10-14 | 2024-10 | P1306R2 | EWG Evolution |
| P1494R4 | Partial program correctness | S. Davis Herring | 2024-10-15 | 2024-10 | P1494R3 | SG22 Compatibility,EWG Evolution,LEWG Library Evolution,CWG Core |
| P1708R9 | Basic Statistics | Richard Dosselmann | 2024-10-14 | 2024-10 | P1708R8 | SG6 Numerics,SG14 Low Latency,SG19 Machine Learning,LEWG Library Evolution,LWG Library |
| P1729R5 | Text Parsing | Elias Kosunen | 2024-10-15 | 2024-10 | P1729R4 | SG16 Unicode,LEWG Library Evolution |
| P1839R6 | Accessing object representations | Brian Bi | 2024-10-14 | 2024-10 | P1839R5 | CWG Core |
| P1928R12 | std::simd - Merge data-parallel types from the Parallelism TS 2 | Matthias Kretz | 2024-10-11 | 2024-10 | P1928R11 | LWG Library |
| P2079R5 | System execution context | Lucian Radu Teodorescu | 2024-10-16 | 2024-10 | P2079R4 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2319R2 | Prevent path presentation problems | Victor Zverovich | 2024-09-28 | 2024-10 | P2319R1 | LEWG Library Evolution |
| P2392R3 | Pattern matching using is and as | Herb Sutter | 2024-10-16 | 2024-10 | P2392R2 | EWG Evolution |
| P2434R2 | Nondeterministic pointer provenance | S. Davis Herring | 2024-10-15 | 2024-10 | P2434R1 | SG22 Compatibility,EWG Evolution,CWG Core |
| P2645R0 | path_view: a design that took a wrong turn | Victor Zverovich | 2024-10-12 | 2024-10 | LEWG Library Evolution | |
| P2664R8 | Proposal to extend std::simd with permutation API | Daniel Towner | 2024-10-15 | 2024-10 | P2664R7 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2688R3 | Pattern Matching: `match` Expression | Michael Park | 2024-10-16 | 2024-10 | P2688R2 | EWG Evolution |
| P2719R1 | Type-aware allocation and deallocation functions | Louis Dionne | 2024-10-16 | 2024-10 | P2719R0 | EWG Evolution |
| P2728R7 | Unicode in the Library, Part 1: UTF Transcoding | Zach Laine | 2024-10-07 | 2024-10 | P2728R6 | SG9 Ranges,SG16 Unicode,LEWG Library Evolution |
| P2746R6 | Deprecate and Replace Fenv Rounding Modes | Hans Boehm | 2024-10-14 | 2024-10 | P2746R5 | SG6 Numerics,LEWG Library Evolution |
| P2769R3 | get_element customization point object | Ruslan Arutyunyan | 2024-10-16 | 2024-10 | P2769R2 | LEWG Library Evolution |
| P2786R8 | Trivial Relocatability For C++26 | Mungo Gill | 2024-10-16 | 2024-10 | P2786R7 | EWG Evolution,LEWG Library Evolution |
| P2841R5 | Concept and variable-template template-parameters | Corentin Jabot | 2024-10-16 | 2024-10 | P2841R4 | CWG Core |
| P2846R4 | reserve_hint: Eagerly reserving memory for not-quite-sized lazy ranges | Corentin Jabot | 2024-10-15 | 2024-10 | P2846R3 | LEWG Library Evolution |
| P2900R10 | Contracts for C++ | Joshua Berne | 2024-10-13 | 2024-10 | P2900R9 | EWG Evolution,LEWG Library Evolution |
| P2900R9 | Contracts for C++ | Joshua Berne | 2024-10-13 | 2024-10 | P2900R8 | EWG Evolution,LEWG Library Evolution |
| P2933R2 | std::simd overloads for <bit> header | Daniel Towner | 2024-10-16 | 2024-10 | P2933R1 | LWG Library |
| P2957R2 | Contracts and coroutines | Andrzej Krzemieński | 2024-10-14 | 2024-10 | P2957R1 | SG21 Contracts,EWG Evolution |
| P2977R2 | Build database files | Ben Boeckel | 2024-10-15 | 2024-10 | P2977R1 | SG15 Tooling |
| P2988R8 | std::optional<T&> | Steve Downey | 2024-10-15 | 2024-10 | P2988R7 | LEWG Library Evolution,LWG Library |
| P2996R6 | Reflection for C++26 | Barry Revzin | 2024-10-09 | 2024-10 | P2996R5 | EWG Evolution |
| P2996R7 | Reflection for C++26 | Barry Revzin | 2024-10-12 | 2024-10 | P2996R6 | EWG Evolution |
| P2998R0 | CTAD for function parameter types | James Touton | 2024-10-15 | 2024-10 | EWGI SG17: EWG Incubator,EWG Evolution | |
| P3019R10 | Vocabulary Types for Composite Class Design | Jonathan Coe | 2024-09-30 | 2024-10 | P3019R9 | LEWG Library Evolution,LWG Library |
| P3045R2 | Quantities and units library | Mateusz Pusz | 2024-10-09 | 2024-10 | P3045R1 | SG6 Numerics,SG16 Unicode,LEWG Library Evolution |
| P3045R3 | Quantities and units library | Mateusz Pusz | 2024-10-15 | 2024-10 | P3045R2 | SG6 Numerics,SG16 Unicode,LEWG Library Evolution |
| P3049R1 | node-handles for lists | Michael Florian Hava | 2024-10-15 | 2024-10 | P3049R0 | LEWG Library Evolution |
| P3070R1 | Formatting enums | Victor Zverovich | 2024-10-13 | 2024-10 | P3070R0 | LEWG Library Evolution |
| P3081R0 | Core safety Profiles: Specification, adoptability, and impact | Herb Sutter | 2024-10-15 | 2024-10 | SG15 Tooling,SG23 Safety and Security,EWG Evolution | |
| P3091R3 | Better lookups for `map` and `unordered_map` | Pablo Halpern | 2024-10-14 | 2024-10 | P3091R2 | LEWG Library Evolution |
| P3094R4 | std::basic_fixed_string | Mateusz Pusz | 2024-10-09 | 2024-10 | P3094R3 | SG16 Unicode,LEWG Library Evolution |
| P3094R5 | std::basic_fixed_string | Mateusz Pusz | 2024-10-15 | 2024-10 | P3094R4 | LEWG Library Evolution |
| P3098R0 | Contracts for C++: Postcondition captures | Timur Doumler | 2024-10-14 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3100R1 | Undefined and erroneous behaviour are contract violations | Timur Doumler | 2024-10-16 | 2024-10 | P3100R0 | SG21 Contracts,SG23 Safety and Security,EWG Evolution |
| P3100R1 | Undefined and erroneous behaviour are contract violations | Timur Doumler | 2024-10-16 | 2024-10 | P3100R0 | SG21 Contracts,SG23 Safety and Security,EWG Evolution |
| P3125R1 | constexpr pointer tagging | Hana Dusíková | 2024-10-16 | 2024-10 | P3125R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3138R3 | views::cache_latest | Tim Song | 2024-10-15 | 2024-10 | P3138R2 | LEWG Library Evolution |
| P3149R6 | async_scope -- Creating scopes for non-sequential concurrency | Ian Petersen | 2024-10-15 | 2024-10 | P3149R5 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3152R0 | Add missing constructors and assignment for indirect and polymorphic | Jonathan Coe | 2024-09-30 | 2024-10 | LEWG Library Evolution | |
| P3160R2 | An allocator-aware `inplace_vector` | Pablo Halpern | 2024-10-14 | 2024-10 | P3160R1 | LEWG Library Evolution |
| P3179R3 | C++ parallel range algorithms | Ruslan Arutyunyan | 2024-10-16 | 2024-10 | P3179R2 | SG1 Concurrency and Parallelism,SG9 Ranges,LEWG Library Evolution |
| P3227R0 | Contracts for C++: Fixing the contract violation handling API | Gašper Ažman | 2024-10-16 | 2024-10 | SG21 Contracts,LEWG Library Evolution | |
| P3237R1 | Matrix Representation of Contract Semantics | Andrei Zissu | 2024-10-16 | 2024-10 | P3237R0 | SG21 Contracts |
| P3261R0 | Revisiting `const`-ification in Contract Assertions | Joshua Berne | 2024-10-02 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3261R1 | Revisiting `const`-ification in Contract Assertions | Joshua Berne | 2024-10-13 | 2024-10 | P3261R0 | SG21 Contracts,EWG Evolution |
| P3271R1 | Function Types with Usage (Contracts for Function Pointers) | Lisa Lippincott | 2024-10-14 | 2024-10 | P3271R0 | SG21 Contracts |
| P3287R1 | Exploration of namespaces for std::simd | Matthias Kretz | 2024-10-15 | 2024-10 | P3287R0 | LEWG Library Evolution |
| P3293R1 | Splicing a base class subobject | Barry Revzin | 2024-10-13 | 2024-10 | P3293R0 | EWG Evolution |
| P3294R2 | Code Injection with Token Sequences | Barry Revzin | 2024-10-15 | 2024-10 | P3294R1 | SG7 Reflection,EWG Evolution |
| P3295R2 | Freestanding constexpr containers and constexpr exception types | Ben Craig | 2024-10-12 | 2024-10 | P3295R1 | LEWG Library Evolution |
| P3296R2 | let_async_scope | Anthony Williams | 2024-10-14 | 2024-10 | P3296R1 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P3298R1 | Implicit user-defined conversion functions as operator.() | Bengt Gustafsson | 2024-10-15 | 2024-10 | P3298R0 | EWG Evolution |
| P3299R2 | Range constructors for std::simd | Daniel Towner | 2024-10-16 | 2024-10 | P3299R1 | LEWG Library Evolution |
| P3310R3 | Solving partial ordering issues introduced by P0522R0 | Matheus Izvekov | 2024-10-14 | 2024-10 | P3310R2 | EWG Evolution,CWG Core |
| P3310R4 | Solving issues introduced by P0522R0 | Matheus Izvekov | 2024-10-15 | 2024-10 | P3310R3 | EWG Evolution,CWG Core |
| P3324R0 | Attributes for namespace aliases, template parameters, and lambda captures | Tom Honermann | 2024-10-14 | 2024-10 | EWG Evolution | |
| P3327R0 | Contract assertions on function pointers | Timur Doumler | 2024-10-16 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3334R0 | Cross Static Variables | Coral Kashri | 2024-10-15 | 2024-10 | SG7 Reflection,EWGI SG17: EWG Incubator | |
| P3335R2 | Structured Core Options | René Ferdinand Rivera Morell | 2024-10-15 | 2024-10 | P3335R1 | SG15 Tooling |
| P3346R0 | thread_local means fiber-specific | Nat Goodspeed | 2024-10-16 | 2024-10 | EWG Evolution,LEWG Library Evolution | |
| P3348R1 | C++26 should refer to C23 not C17 | Jonathan Wakely | 2024-10-14 | 2024-10 | P3348R0 | SG6 Numerics,LEWG Library Evolution |
| P3349R0 | Converting contiguous iterators to pointers | Jonathan Wakely | 2024-10-16 | 2024-10 | LEWG Library Evolution | |
| P3351R1 | views::scan | Yihe Li | 2024-10-09 | 2024-10 | P3351R0 | SG9 Ranges |
| P3352R0 | Taming the Demons (C++ version) - Undefined Behavior and Partial Program Correctness | Andrew Tomazos, Martin Uecker | 2024-09-19 | 2024-10 | SG22 Compatibility,EWG Evolution | |
| P3355R1 | Fix submdspan for C++26 | Mark Hoemmen | 2024-10-15 | 2024-10 | P3355R0 | LWG Library |
| P3367R0 | constexpr coroutines | Hana Dusíková | 2024-10-16 | 2024-10 | EWG Evolution,LEWG Library Evolution | |
| P3370R1 | Add new library headers from C23 | Jens Maurer | 2024-10-06 | 2024-10 | P3370R0 | LEWG Library Evolution |
| P3371R2 | Fix C++26 by making the rank-1, rank-2, rank-k, and rank-2k updates consistent with the BLAS | Mark Hoemmen | 2024-10-14 | 2024-10 | P3371R1 | LEWG Library Evolution |
| P3372R2 | constexpr containers and adapters | Hana Dusíková | 2024-10-08 | 2024-10 | P3372R1 | LEWG Library Evolution |
| P3375R1 | Reproducible floating-point results | Guy Davidson | 2024-10-08 | 2024-10 | P3375R0 | SG6 Numerics,SG14 Low Latency,LEWG Library Evolution |
| P3376R0 | Contract assertions versus static analysis and 'safety' | Andrzej Krzemieński | 2024-10-14 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3378R0 | constexpr exception types | Hana Dusíková | 2024-10-14 | 2024-10 | LEWG Library Evolution | |
| P3385R1 | Attributes reflection | Aurelien Cassagnes | 2024-10-14 | 2024-10 | P3385R0 | SG7 Reflection |
| P3386R0 | Static Analysis of Contracts with P2900 | Joshua Berne | 2024-10-15 | 2024-10 | EWG Evolution | |
| P3387R0 | Contract assertions on coroutines | Timur Doumler | 2024-10-09 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3394R0 | Annotations for Reflection | Daveed Vandevoorde | 2024-10-14 | 2024-10 | SG7 Reflection,EWG Evolution | |
| P3399R0 | Adjusting Electronic Polls to a Hybrid Workflow | Inbal Levi | 2024-10-16 | 2024-10 | LEWG Library Evolution,All of WG21 | |
| P3402R1 | A Safety Profile Verifying Class Initialization | Marc-André Laverdière | 2024-10-14 | 2024-10 | P3402R0 | SG23 Safety and Security |
| P3403R0 | The Undefined Behavior Question | Andrew Tomazos | 2024-09-19 | 2024-10 | EWG Evolution | |
| P3404R0 | std::at : Range-checked accesses to arbitrary containers | Andre Kostur | 2024-10-11 | 2024-10 | SG9 Ranges,SG23 Safety and Security | |
| P3405R0 | Out-of-order designated initializers | Elias Kosunen | 2024-09-28 | 2024-10 | EWG Evolution | |
| P3406R0 | We need better performance testing | Bjarne Stroustrup | 2024-09-24 | 2024-10 | All of WG21 | |
| P3407R0 | Make idiomatic usage of `offsetof` well-defined | Brian Bi | 2024-10-14 | 2024-10 | EWG Evolution | |
| P3409R0 | Enabling more efficient stop-token based cancellation of senders | Lewis Baker | 2024-10-16 | 2024-10 | SG1 Concurrency and Parallelism | |
| P3411R0 | `any_view` | Hui Xie | 2024-09-29 | 2024-10 | SG9 Ranges,LEWG Library Evolution | |
| P3412R0 | String interpolation | Bengt Gustafsson | 2024-10-15 | 2024-10 | EWGI SG17: EWG Incubator,EWG Evolution | |
| P3413R0 | A more flexible optional::value_or (else!) | Corentin Jabot | 2024-10-15 | 2024-10 | LEWG Library Evolution | |
| P3415R0 | Range interface in std::optional breaks code! | Andrzej Krzemieński | 2024-10-10 | 2024-10 | LEWG Library Evolution | |
| P3416R0 | exception_ptr_cast: Add && = delete overload | Gor Nishanov | 2024-10-14 | 2024-10 | LEWG Library Evolution | |
| P3417R0 | Improving the handling of exceptions thrown from contract predicates | Gašper Ažman | 2024-10-16 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3419R0 | Reflection Syntax Options Summary | Michael Levine | 2024-10-11 | 2024-10 | SG7 Reflection,EWGI SG17: EWG Incubator,EWG Evolution | |
| P3420R0 | Reflection of Templates | Andrei Alexandrescu | 2024-10-16 | 2024-10 | SG7 Reflection | |
| P3421R0 | Consteval destructors | Ben Craig | 2024-10-12 | 2024-10 | SG7 Reflection,EWG Evolution | |
| P3422R0 | Allow main function in named modules | 2024-10-09 | 2024-10 | EWG Evolution | ||
| P3423R0 | Extending User-Generated Diagnostic Messages | Yihe Li | 2024-10-15 | 2024-10 | EWG Evolution | |
| P3425R0 | Reducing operation-state sizes for subobject child operations | Lewis Baker | 2024-10-16 | 2024-10 | LEWG Library Evolution | |
| P3427R0 | Hazard Pointer Synchronous Reclamation | Maged Michael | 2024-10-11 | 2024-10 | SG1 Concurrency and Parallelism | |
| P3428R0 | Hazard Pointer Batches | Maged Michael | 2024-10-11 | 2024-10 | SG1 Concurrency and Parallelism | |
| P3429R0 | Reflection header should minimize standard library dependencies | Jonathan Müller | 2024-10-16 | 2024-10 | LEWG Library Evolution | |
| P3430R0 | simd issues: explicit, unsequenced, identity-element position, and members of disabled simd | Matthias Kretz | 2024-10-15 | 2024-10 | LEWG Library Evolution | |
| P3433R0 | Allocator Support for Operation States | Dietmar Kuehl | 2024-10-14 | 2024-10 | LEWG Library Evolution | |
| P3435R0 | Reflection and meta-programming | Jean-Baptiste VALLON HOARAU | 2024-10-14 | 2024-10 | SG7 Reflection | |
| P3436R0 | Strategy for removing safety-related undefined behavior by default | Herb Sutter | 2024-10-16 | 2024-10 | SG23 Safety and Security,EWG Evolution | |
| P3437R0 | Proposed default principles: Reflect C++, Generate C++ | Herb Sutter | 2024-10-16 | 2024-10 | SG7 Reflection,EWG Evolution | |
| P3438R0 | Make integral overloads of std::to_string constexpr | Andreas Fertig | 2024-10-13 | 2024-10 | LEWG Library Evolution | |
| P3439R0 | Chained comparisons: Safe, correct, efficient | Herb Sutter | 2024-10-15 | 2024-10 | EWG Evolution | |
| P3440R0 | Add n_elements named constructor to std::simd | Daniel Towner | 2024-10-15 | 2024-10 | LEWG Library Evolution | |
| P3441R0 | Rename simd_split to simd_chunk | Daniel Towner | 2024-10-15 | 2024-10 | LEWG Library Evolution | |
| P3442R0 | [[invalidate_dereferencing]] attribute | Patrice Roy | 2024-10-14 | 2024-10 | SG14 Low Latency,LEWG Library Evolution | |
| P3443R0 | Reflection on SG21 2024 Process | Ran Regev | 2024-10-14 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3444R0 | Memory safety without lifetime parameters | Sean Baxter | 2024-10-14 | 2024-10 | SG23 Safety and Security | |
| P3445R0 | Add utilities for easier type/bit casting in std::simd | Daniel Towner | 2024-10-16 | 2024-10 | LEWG Library Evolution | |
| P3446R0 | Profile invalidation - eliminating dangling pointers | Bjarne Stroustrup | 2024-10-14 | 2024-10 | SG23 Safety and Security | |
| P3447R0 | Profiles syntax | Bjarne Stroustrup | 2024-10-14 | 2024-10 | SG23 Safety and Security | |
| P3449R0 | constexpr std::generator | Hana Dusíková | 2024-10-14 | 2024-10 | LEWG Library Evolution | |
| P3450R0 | Extending is_within_lifetime | Barry Revzin | 2024-10-14 | 2024-10 | LEWG Library Evolution | |
| P3451R0 | A Suggestion for Reflection Access Control | Barry Revzin | 2024-10-14 | 2024-10 | EWG Evolution | |
| P3454R0 | Revising Atomic Max/Min Operations | Michael Wong | 2024-10-15 | 2024-10 | SG1 Concurrency and Parallelism | |
| P3455R0 | SG14: Low Latency/Games/Embedded/Financial Trading virtual Meeting Minutes 2024/6/12-2024/10/9 | Michael Wong | 2024-10-14 | 2024-10 | SG14 Low Latency | |
| P3456R0 | system_scheduler on Win32, Darwin and Linux | Gor Nishanov | 2024-10-15 | 2024-10 | SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library | |
| P3457R0 | SG19: Machine Learning virtual Meeting Minutes to 2024/06/13-2024/10/10 | Michael Wong | 2024-10-14 | 2024-10 | SG19 Machine Learning | |
| P3460R0 | Contracts Implementors Report | Eric Fiselier, Nina Dinka Ranns, Iain Sandoe | 2024-10-16 | 2024-10 | SG21 Contracts,EWG Evolution,CWG Core | |
| P3465R0 | Pursue P1179 as a Lifetime TS | Herb Sutter | 2024-10-15 | 2024-10 | SG23 Safety and Security,EWG Evolution | |
| P3466R0 | (Re)affirm design principles for future C++ evolution | Herb Sutter | 2024-10-16 | 2024-10 | EWG Evolution | |
| P3467R0 | 2024-10 Library Evolution Polls | Inbal Levi | 2024-10-16 | 2024-10 | LEWG Library Evolution | |
| P3469R0 | Virtual deducing this | Mike Spertus | 2024-10-16 | 2024-10 | EWG Evolution | |
| P3470R0 | Interface-Unit-Only Module Library Support | Daniel Ruoso | 2024-10-15 | 2024-10 | SG15 Tooling,EWG Evolution | |
| P3471R0 | Standard library hardening | Konstantin Varlamov | 2024-10-15 | 2024-10 | SG23 Safety and Security,LEWG Library Evolution | |
| P3472R0 | Make fiber_context::can_resume() const | Andrzej Krzemieński | 2024-10-15 | 2024-10 | LEWG Library Evolution | |
| P3473R0 | Splicing Should Respect Access Control | Steve Downey | 2024-10-16 | 2024-10 | EWG Evolution | |
| P3474R0 | std::arguments | Jeremy Rifkin | 2024-10-15 | 2024-10 | EWGI SG17: EWG Incubator,LEWGI SG18: LEWG Incubator | |
| P3475R0 | Defang and deprecate memory_order::consume | Hans Boehm | 2024-10-15 | 2024-10 | SG1 Concurrency and Parallelism,EWG Evolution,LEWG Library Evolution,CWG Core,LWG Library | |
| P3476R0 | Slides for P2688R2 - Pattern Matching: `match` Expression | Michael Park | 2024-10-16 | 2024-10 | EWG Evolution | |
| P3477R0 | There are exactly 8 bits in a byte | JF Bastien | 2024-10-16 | 2024-10 | SG22 Compatibility,EWG Evolution,LEWG Library Evolution | |
| P3478R0 | Constification should not be part of the MVP | John Spicer | 2024-10-16 | 2024-10 | SG21 Contracts,EWG Evolution | |
| P3479R0 | Enabling C pragma support in C++ | Joshua Cranmer | 2024-10-16 | 2024-10 | SG6 Numerics,EWGI SG17: EWG Incubator,SG22 Compatibility | |
| P3480R0 | std::simd is a range | Matthias Kretz | 2024-10-16 | 2024-10 | SG9 Ranges,LEWG Library Evolution | |
| P3481R0 | Summarizing std::execution::bulk() issues | Lucian Radu Teodorescu | 2024-10-16 | 2024-10 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
By Meeting C++ | Oct 12, 2024 05:56 AM | Tags: meetingcpp community c++26 c++23 c++20 basics advanced
Meeting C++ hosted an online AMA with Herb Sutter on Friday.
AMA with Herb Sutter - Meeting C++ live
by Jens Weller & Herb Sutter
Video: