November 14-16, Berlin, Germany
November 18-23, Wrocław, Poland
November 25, Wrocław, Poland
February 10-15, Hagenberg, Austria
March 19-21, Madrid, Spain
April 1-4, Bristol, UK
June 16-21, Sofia, Bulgaria
By bfilipek | Jan 13, 2022 11:56 AM | Tags: None
10th edition of “C++ at the end”!
C++ at the end of 2021 @C++ Stories
by Bartlomiej Filipek
About the blog
See what happened this year in the C++ World!
New features, plans for the language, updated tools and compilers, conferences, books, and more!
What was the most important event this year? The pandemic? C++20 adoption? Ongoing work for C++23 or something else?
By Adrien Hamelin | Jan 12, 2022 02:42 PM | Tags: community
Did you follow?
2021 C++ Standardization Highlights
by Botond Ballo
From the article:
The ISO C++ Standards Committee (also known as WG21) has not met in person since its February 2020 meeting in Prague, which I wrote about here.
However, the committee and its subgroups have continued their work through remote collaboration, and a number of notable proposals have been adopted into C++23, the next language version, in this way, with many others in the pipeline.
In this post, I will outline some of the highlights of the committee’s work in 2021. (The post will also cover some material from the latter part of 2020, a period when remote collaboration was already underway but which I have not covered in any previous post.) I’ve been less involved in the committee than before, so this post will not be as comprehensive as my previous trip reports, but I hope to share the proposals I’ve found most notable...
By Administrator | Dec 19, 2021 01:36 PM | Tags: None
The 2021-12 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| P0493R3 | Atomic maximum/minimum | Al Grant | 2021-12-17 | 2021-12 | P0493R2 | SG1 Concurrency and Parallelism |
| P1467R8 | Extended floating-point types and standard names | David Olsen | 2021-12-16 | 2021-12 | P1467R7 | EWG Evolution,LEWG Library Evolution |
| P1673R6 | A free function linear algebra interface based on the BLAS | Mark Hoemmen | 2021-12-14 | 2021-12 | P1673R5 | LEWG Library Evolution |
| P1774R5 | Portable assumptions | Timur Doumler | 2021-12-16 | 2021-12 | P1774R4 | EWG Evolution,CWG Core |
| P2093R11 | Formatted output | Victor Zverovich | 2021-12-06 | 2021-12 | P2093R10 | LWG Library |
| P2152R1 | Querying the alignment of an object | Inbal Levi | 2021-11-30 | 2021-12 | P2152R0 | SG22 Compatability,EWG Evolution |
| P2173R1 | Attributes on Lambda-Expressions | Daveed Vandevoorde | 2021-12-09 | 2021-12 | P2173R0 | All of WG21 |
| P2198R4 | Freestanding Feature-Test Macros and Implementation-Defined Extensions | Ben Craig | 2021-12-13 | 2021-12 | P2198R3 | SG10 Feature Test,LEWG Library Evolution |
| P2248R3 | Enabling list-initialization for algorithms | Giuseppe D'Angelo | 2021-12-17 | 2021-12 | P2248R2 | SG6 Numerics,SG9 Ranges,LEWG Library Evolution |
| P2283R2 | constexpr for specialized memory algorithms | Michael Schellenberger Costa | 2021-11-25 | 2021-12 | P2283R1 | LEWG Library Evolution |
| P2286R4 | Formatting Ranges | Barry Revzin | 2021-12-17 | 2021-12 | P2286R3 | LEWG Library Evolution |
| P2300R3 | `std::execution` | Michał Dominiak | 2021-12-05 | 2021-12 | P2300R2 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2302R2 | std::ranges::contains | Christopher Di Bella | 2021-12-12 | 2021-12 | P2302R1 | SG9 Ranges |
| P2329R0 | Move, Copy, and Locality at Scale | Pablo Halpern | 2021-12-13 | 2021-12 | All of WG21 | |
| P2363R2 | Extending associative containers with the remaining heterogeneous overloads | Konstantin Boyarinov | 2021-12-07 | 2021-12 | P2363R1 | LEWG Library Evolution |
| P2374R2 | views::cartesian_product | Sy Brand | 2021-12-13 | 2021-12 | P2374R1 | SG9 Ranges,LEWG Library Evolution |
| P2374R3 | views::cartesian_product | Sy Brand | 2021-12-13 | 2021-12 | P2374R2 | LEWG Library Evolution |
| P2387R3 | Pipe support for user-defined range adaptors | Barry Revzin | 2021-12-17 | 2021-12 | P2387R2 | LEWG Library Evolution |
| P2416R1 | Presentation of requirements in the standard library | Jens Maurer | 2021-12-15 | 2021-12 | P2416R0 | LWG Library |
| P2438R1 | std::string::substr() && | Federico Kircheis | 2021-11-30 | 2021-12 | P2438R0 | LEWG Library Evolution |
| P2440R1 | ranges::iota, ranges::shift_left, and ranges::shift_right | Tim Song | 2021-12-05 | 2021-12 | P2440R0 | LWG Library |
| P2442R1 | Windowing range adaptors: views::chunk and views::slide | Tim Song | 2021-12-05 | 2021-12 | P2442R0 | LWG Library |
| P2447R1 | std::span and the missing constructor | Federico Kircheis | 2021-12-17 | 2021-12 | P2447R0 | LEWG Library Evolution |
| P2455R0 | 2021 November Library Evolution Poll Outcomes | Bryce Adelstein Lelbach | 2021-12-08 | 2021-12 | LEWG Library Evolution | |
| P2456R0 | 2021 December Library Evolution Polls | Bryce Adelstein Lelbach | 2021-12-08 | 2021-12 | LEWG Library Evolution | |
| P2468R1 | The Equality Operator You Are Looking For | Barry Revzin, Bjarne Stroustrup, Cameron DaCamara, Daveed Vandevoorde, Gabriel Dos Reis, Herb Sutter, Jason Merrill, Jonathan Caves, Richard Smith, Ville Voutilainen | 2021-12-16 | 2021-12 | P2468R0 | CWG Core |
| P2473R1 | Distributing C++ Module Libraries | Daniel Ruoso | 2021-12-02 | 2021-12 | P2473R0 | SG15 Tooling |
| P2474R0 | views::repeat | Michał Dominiak | 2021-12-13 | 2021-12 | SG9 Ranges,LEWG Library Evolution | |
| P2486R1 | Structured naming for function object and CPO values | Kirk Shoop | 2021-12-16 | 2021-12 | P2486R0 | LEWG Library Evolution |
| P2494R0 | Relaxing range adaptors to allow for move only types | Michał Dominiak | 2021-12-13 | 2021-12 | SG9 Ranges,LEWG Library Evolution | |
| P2498R0 | Forward compatibility of text_encoding with additional encoding registries | Peter Brett | 2021-12-13 | 2021-12 | SG16 Unicode,LEWG Library Evolution | |
| P2499R0 | string_view range constructor should be explicit | James Touton | 2021-12-07 | 2021-12 | LEWG Library Evolution | |
| P2501R0 | Undo the rename of views::move and views::as_const | Ville Voutilainen | 2021-12-14 | 2021-12 | LEWG Library Evolution | |
| P2502R0 | std::generator: Synchronous Coroutine Generator for Ranges | Casey Carter | 2021-12-13 | 2021-12 | LEWG Library Evolution | |
| P2504R0 | Computations as a global solution to concurrency | Lucian Radu Teodorescu | 2021-12-11 | 2021-12 | SG1 Concurrency and Parallelism,LEWG Library Evolution | |
| P2505R0 | Monadic Functions for std::expected | Jeff Garland | 2021-12-15 | 2021-12 | LEWG Library Evolution,LWG Library | |
| P2507R0 | Only [[assume]] conditional-expressions | Peter Brett | 2021-12-13 | 2021-12 | EWG Evolution | |
| P2508R0 | Exposing std::basic-format-string | Barry Revzin | 2021-12-17 | 2021-12 | LEWG Library Evolution | |
| P2509R0 | A proposal for a type trait to detect value-preserving conversions | Giuseppe D'Angelo | 2021-12-17 | 2021-12 | SG6 Numerics,LEWG Library Evolution | |
| P2510R0 | Formatting pointers | Mark de Wever | 2021-12-17 | 2021-12 | LWG Library |
By Guy | Dec 8, 2021 10:49 AM | Tags: None
The Reflection TS was blessed with an example implementation recently, available on Compiler Explorer. Clément Pirelli gave it a spin and wrote a small post about what he found.
C++ Reflection TS: A First Look
by Clément Pirelli
From the article:
In this post, I’ll explain the basic ideas of the specification, how to write a simple generic “enum to string” function and go into a bit more detail with a proof-of-concept serialization function.
By Administrator | Nov 30, 2021 01:11 PM | Tags: None
The 2021-11 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| P0009R14 | MDSPAN | Christian Trott | 2021-11-14 | 2021-11 | P0009R13 | LEWG Library Evolution,LWG Library |
| P0323R11 | std::expected | JF Bastien | 2021-11-16 | 2021-11 | P0323R10 | LWG Library |
| P0447R17 | Introduction of std::hive to the standard library | Matt Bentley | 2021-11-03 | 2021-11 | P0447R16 | SG14 Low Latency,LEWG Library Evolution,All of WG21 |
| P0533R9 | constexpr for cmath and cstdlib | Oliver Rosten | 2021-11-12 | 2021-11 | P0533R8 | CWG Core,LWG Library |
| P1413R3 | Deprecate std::aligned_storage and std::aligned_union | CJ Johnson | 2021-11-22 | 2021-11 | P1413R2 | LEWG Library Evolution,LWG Library |
| P1467R6 | Extended floating-point types and standard names | David Olsen | 2021-11-10 | 2021-11 | P1467R5 | EWG Evolution,LEWG Library Evolution |
| P1467R7 | Extended floating-point types and standard names | David Olsen | 2021-11-24 | 2021-11 | P1467R6 | EWG Evolution,LEWG Library Evolution |
| P1494R2 | Partial program correctness | S. Davis Herring | 2021-11-12 | 2021-11 | P1494R1 | SG22 Compatability,EWG Evolution,LEWG Library Evolution,CWG Core |
| P1774R4 | Portable assumptions | Timur Doumler | 2021-11-17 | 2021-11 | P1774R3 | EWG Evolution |
| P1854R2 | Conversion to literal encoding should not lead to loss of meaning | Corentin Jabot | 2021-11-23 | 2021-11 | P1854R1 | SG16 Unicode |
| P1899R1 | stride_view | Christopher Di Bella | 2021-11-08 | 2021-11 | P1899R0 | SG9 Ranges,LEWG Library Evolution |
| P2071R1 | Named universal character escapes | Tom Honermann | 2021-11-09 | 2021-11 | P2071R0 | SG16 Unicode,EWG Evolution |
| P2093R10 | Formatted output | Victor Zverovich | 2021-11-13 | 2021-11 | P2093R9 | LEWG Library Evolution |
| P2198R3 | Freestanding Feature-Test Macros and Implementation-Defined Extensions | Ben Craig | 2021-11-12 | 2021-11 | P2198R2 | SG10 Feature Test,LEWG Library Evolution |
| P2249R3 | Mixed comparisons for smart pointers | Giuseppe D'Angelo | 2021-11-16 | 2021-11 | P2249R2 | LEWG Library Evolution |
| P2273R3 | Making std::unique_ptr constexpr | Andreas Fertig | 2021-11-09 | 2021-11 | P2273R2 | LWG Library |
| P2278R2 | cbegin should always return a constant iterator | Barry Revzin | 2021-11-16 | 2021-11 | P2278R1 | LEWG Library Evolution |
| P2286R3 | Formatting Ranges | Barry Revzin | 2021-11-16 | 2021-11 | P2286R2 | LEWG Library Evolution |
| P2302R1 | std::ranges::contains | Christopher Di Bella | 2021-11-08 | 2021-11 | P2302R0 | SG9 Ranges |
| P2338R2 | Freestanding Library: Character primitives and the C library | Ben Craig | 2021-11-11 | 2021-11 | P2338R1 | SG14 Low Latency,SG22 Compatability,LEWG Library Evolution |
| P2361R4 | Unevaluated strings | Corentin Jabot | 2021-11-23 | 2021-11 | P2361R3 | EWG Evolution |
| P2388R4 | Minimum Contract Support: either No_eval or Eval_and_abort | Andrzej Krzemieński | 2021-11-15 | 2021-11 | P2388R3 | SG21 Contracts,SG22 Compatability |
| P2407R1 | Freestanding Library: Partial Classes | Emil Meissner | 2021-11-23 | 2021-11 | P2407R0 | LEWG Library Evolution |
| P2408R3 | Ranges iterators as inputs to non-Ranges algorithms | David Olsen | 2021-11-08 | 2021-11 | P2408R2 | SG9 Ranges,LEWG Library Evolution |
| P2408R4 | Ranges iterators as inputs to non-Ranges algorithms | David Olsen | 2021-11-16 | 2021-11 | P2408R3 | LEWG Library Evolution |
| P2441R1 | views::join_with | Barry Revzin | 2021-11-16 | 2021-11 | P2441R0 | LEWG Library Evolution |
| P2443R1 | views::chunk_by | Tim Song | 2021-11-19 | 2021-11 | P2443R0 | LWG Library |
| P2446R1 | views::all_move | Barry Revzin | 2021-11-16 | 2021-11 | P2446R0 | LEWG Library Evolution |
| P2454R0 | 2021 November Library Evolution Polls | Bryce Adelstein Lelbach | 2021-11-03 | 2021-11 | LEWG Library Evolution | |
| P2461R1 | Closure-based Syntax for Contracts | Gašper Ažman | 2021-11-15 | 2021-11 | P2461R0 | SG21 Contracts |
| P2467R0 | Support exclusive mode for fstreams | Jonathan Wakely | 2021-11-15 | 2021-11 | LEWG Library Evolution | |
| P2477R1 | Allow programmer to control and detect coroutine elision by static constexpr bool must_elide() and | Chuanqi Xu | 2021-10-25 | 2021-11 | P2477R0 | EWG Evolution,LEWG Library Evolution |
| P2477R2 | Allow programmer to control and detect coroutine elision | Chuanqi Xu | 2021-11-14 | 2021-11 | P2477R1 | EWG Evolution,LEWG Library Evolution |
| P2483R0 | Support Non-copyable Types for single_view | Hui Xie | 2021-10-26 | 2021-11 | LEWG Library Evolution | |
| P2484R0 | Extending class types as non-type template parameters | Richard Smith | 2021-11-16 | 2021-11 | EWG Evolution | |
| P2485R0 | Do not add value_exists and value_or to C++23 | Jonathan Wakely | 2021-11-01 | 2021-11 | LEWG Library Evolution | |
| P2486R0 | Structured naming for function object and CPO values | Kirk Shoop | 2021-11-01 | 2021-11 | LEWG Library Evolution | |
| P2487R0 | Attribute-like syntax for contract annotations | Andrzej Krzemieński | 2021-11-12 | 2021-11 | SG21 Contracts,EWG Evolution | |
| P2489R0 | Library Evolution Plan for Completing C++23 | Bryce Adelstein Lelbach | 2021-11-09 | 2021-11 | LEWG Library Evolution | |
| P2490R0 | Zero-overhead exception stacktraces | Antony Peacock | 2021-11-25 | 2021-11 | LEWGI SG18: LEWG Incubator | |
| P2491R0 | Text encodings follow-up | Jens Maurer | 2021-11-15 | 2021-11 | SG16 Unicode,LEWG Library Evolution | |
| P2492R0 | Attending C++ Standards Committee Meetings During a Pandemic | René Ferdinand Rivera Morell | 2021-11-09 | 2021-11 | All of WG21 | |
| P2493R0 | Missing feature test macros for C++20 core papers | Barry Revzin | 2021-11-15 | 2021-11 | CWG Core |
By Administrator | Sep 28, 2021 02:25 PM | Tags: None
The 2021-09 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| P0288R7 | move_only_function (was any_invocable) | Matt Calabrese, Ryan McDougall | 2021-08-27 | 2021-09 | P0288R6 | LWG Library |
| P0447R16 | Introduction of std::hive to the standard library | Matt Bentley | 2021-09-08 | 2021-09 | P0447R15 | SG14 Low Latency,LEWG Library Evolution,All of WG21 |
| P0627R5 | Function to mark unreachable code | Jens Maurer | 2021-09-19 | 2021-09 | P0627R3 | LWG Library |
| P0849R8 | auto(x): decay-copy in the language | Zhihao Yuan | 2021-08-26 | 2021-09 | P0849R7 | CWG Core,LWG Library |
| P1018R13 | C++ Language Evolution status pandemic edition 2021/06–2021/08 | JF Bastien | 2021-09-06 | 2021-09 | P1018R12 | EWG Evolution,All of WG21 |
| P1072R10 | basic_string::resize_and_overwrite | Chris Kennelly | 2021-09-14 | 2021-09 | P1072R9 | LWG Library |
| P1885R7 | Naming Text Encodings to Demystify Them | Corentin Jabot | 2021-09-14 | 2021-09 | P1885R6 | LEWG Library Evolution |
| P2012R1 | Fix the range-based for loop, Rev1 | Nicolai Josuttis | 2021-09-16 | 2021-09 | P2012R0 | EWG Evolution,CWG Core |
| P2036R3 | Changing scope for lambda trailing-return-type | Barry Revzin | 2021-09-14 | 2021-09 | P2036R2 | CWG Core |
| P2066R9 | Suggested draft TS for C++ Extensions for Minimal Transactional Memory | Jens Maurer | 2021-09-15 | 2021-09 | P2066R8 | CWG Core,LWG Library |
| P2093R9 | Formatted output | Victor Zverovich | 2021-09-09 | 2021-09 | P2093R8 | LEWG Library Evolution |
| P2128R6 | Multidimensional subscript operator | Corentin Jabot | 2021-09-14 | 2021-09 | P2128R5 | CWG Core |
| P2214R1 | A Plan for C++23 Ranges | Barry Revzin | 2021-09-14 | 2021-09 | P2214R0 | LEWG Library Evolution |
| P2266R2 | Simpler implicit move | Arthur O'Dwyer | 2021-08-31 | 2021-09 | P2266R1 | EWG Evolution,CWG Core |
| P2276R1 | Fix cbegin | Nicolai Josuttis | 2021-09-10 | 2021-09 | P2276R0 | LEWG Library Evolution,LWG Library |
| P2278R1 | cbegin should always return a constant iterator | Barry Revzin | 2021-09-15 | 2021-09 | P2278R0 | LEWG Library Evolution |
| P2314R3 | Character sets and encodings | Jens Maurer | 2021-09-15 | 2021-09 | P2314R2 | CWG Core,LWG Library |
| P2316R2 | Consistent character literal encoding | Corentin Jabot | 2021-09-14 | 2021-09 | P2316R1 | SG22 Compatability,CWG Core |
| P2322R4 | ranges::fold | Barry Revzin | 2021-09-12 | 2021-09 | P2322R3 | LEWG Library Evolution |
| P2348R1 | Whitespaces Wording Revamp | Corentin Jabot | 2021-09-15 | 2021-09 | P2348R0 | SG16 Unicode |
| P2362R3 | Remove non-encodable wide character literals and multicharacter wide character literals | Peter Brett | 2021-08-27 | 2021-09 | P2362R2 | SG22 Compatability,CWG Core |
| P2363R1 | Extending associative containers with the remaining heterogeneous overloads | Konstantin Boyarinov | 2021-09-15 | 2021-09 | P2363R0 | LEWG Library Evolution |
| P2372R3 | Fixing locale handling in chrono formatters | Victor Zverovich | 2021-09-12 | 2021-09 | P2372R2 | LWG Library |
| P2388R1 | Abort-only contract support | Andrzej Krzemieński | 2021-09-14 | 2021-09 | P2388R0 | SG21 Contracts |
| P2388R2 | Minimum Contract Support: either Ignore or Check_and_abort | Andrzej Krzemieński | 2021-09-19 | 2021-09 | P2388R1 | SG21 Contracts |
| P2390R1 | Add annotations for unreachable control flow | Jens Gustedt | 2021-09-17 | 2021-09 | P2390R0 | SG22 Compatability |
| P2408R1 | Ranges views as inputs to non-Ranges algorithms | David Olsen | 2021-08-31 | 2021-09 | P2408R0 | LEWG Library Evolution |
| P2418R1 | Add support for std::generator-like types to std::format | Victor Zverovich | 2021-09-12 | 2021-09 | P2418R0 | LWG Library |
| P2419R1 | Clarify handling of encodings in localized formatting of chrono types | Victor Zverovich | 2021-09-19 | 2021-09 | P2419R0 | LEWG Library Evolution |
| P2430R0 | Slides: Partial success scenarios with P2300 | Christopher Kohlhoff | 2021-08-23 | 2021-09 | LEWG Library Evolution | |
| P2431R0 | Presentation: Plans for P2300 Revision 2 | Michael Garland | 2021-08-25 | 2021-09 | SG1 Concurrency and Parallelism,LEWG Library Evolution | |
| P2432R0 | Fixing istream_view | Nicolai Josuttis | 2021-08-27 | 2021-09 | SG9 Ranges,LEWG Library Evolution,LWG Library | |
| P2435R0 | 2021 Summer Library Evolution Poll Outcomes | Bryce Adelstein Lelbach | 2021-09-09 | 2021-09 | LEWG Library Evolution | |
| P2436R0 | 2021 September Library Evolution Polls | Bryce Adelstein Lelbach | 2021-09-14 | 2021-09 | LEWG Library Evolution | |
| P2437R0 | Support for #warning | Aaron Ballman | 2021-09-09 | 2021-09 | EWG Evolution | |
| P2438R0 | std::string::substr() && | Federico Kircheis | 2021-09-14 | 2021-09 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P2439R0 | Slides for P2415R1, what is a view? | Tim Song | 2021-09-10 | 2021-09 | LEWG Library Evolution | |
| P2440R0 | ranges::iota, ranges::shift_left, and ranges::shift_right | Tim Song | 2021-09-12 | 2021-09 | LEWG Library Evolution | |
| P2441R0 | views::join_with | Barry Revzin | 2021-09-14 | 2021-09 | LEWG Library Evolution | |
| P2442R0 | Windowing range adaptors: views::chunk and views::slide | Tim Song | 2021-09-14 | 2021-09 | LEWG Library Evolution | |
| P2443R0 | views::chunk_by | Tim Song | 2021-09-14 | 2021-09 | LEWG Library Evolution | |
| P2444R0 | The Asio asynchronous model | Christopher Kohlhoff | 2021-09-15 | 2021-09 | LEWG Library Evolution | |
| P2446R0 | views::move | Barry Revzin | 2021-09-17 | 2021-09 | LEWG Library Evolution |
By Administrator | Sep 3, 2021 02:10 PM | Tags: None
The 2021-08 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4895 | Concurrency TS2 | Michael Wong | 2021-08-22 | 2021-08 | All of WG21 | |
| P1018R12 | C++ Language Evolution status pandemic edition 2021/06–2021/08 | JF Bastien | 2021-08-02 | 2021-08 | P1018R11 | EWG Evolution,All of WG21 |
| P1072R9 | basic_string::resize_and_overwrite | Chris Kennelly | 2021-08-14 | 2021-08 | P1072R8 | LWG Library |
| P1169R2 | static operator() | Barry Revzin | 2021-08-14 | 2021-08 | P1169R1 | EWG Evolution |
| P1206R5 | Conversions from ranges to containers | Corentin Jabot | 2021-08-01 | 2021-08 | P1206R4 | LEWG Library Evolution |
| P1206R6 | Conversions from ranges to containers | Corentin Jabot | 2021-08-03 | 2021-08 | P1206R5 | LEWG Library Evolution |
| P1664R5 | reconstructible_range - a concept for putting ranges back together | JeanHeyd Meneide | 2021-08-16 | 2021-08 | P1664R4 | SG9 Ranges,LEWG Library Evolution |
| P1673R4 | A free function linear algebra interface based on the BLAS | Mark Hoemmen | 2021-08-14 | 2021-08 | P1673R3 | LEWG Library Evolution |
| P1885R6 | Naming Text Encodings to Demystify Them | Corentin Jabot | 2021-08-14 | 2021-08 | P1885R5 | LEWG Library Evolution |
| P2047R2 | An allocator-aware optional type | Nina Ranns | 2021-08-13 | 2021-08 | P2047R1 | LEWG Library Evolution |
| P2093R8 | Formatted output | Victor Zverovich | 2021-08-15 | 2021-08 | P2093R7 | SG16 Unicode,LEWG Library Evolution |
| P2280R3 | Using unknown references in constant expressions | Barry Revzin | 2021-08-18 | 2021-08 | P2280R2 | EWG Evolution |
| P2286R2 | Formatting Ranges | Barry Revzin | 2021-08-15 | 2021-08 | P2286R1 | LEWG Library Evolution |
| P2291R2 | Add Constexpr Modifiers to Functions to_chars and from_chars for Integral Types in Header | Daniil Goncharov | 2021-08-17 | 2021-08 | P2291R1 | LEWG Library Evolution,LWG Library |
| P2361R2 | Unevaluated strings | Corentin Jabot | 2021-08-13 | 2021-08 | P2361R1 | SG16 Unicode,SG22 Compatability,EWG Evolution |
| P2362R2 | Remove non-encodable wide character literals and multicharacter wide character literals | Peter Brett | 2021-07-29 | 2021-08 | P2362R1 | EWG Evolution |
| P2370R1 | Stacktrace from exception | Andrei Nekrashevich | 2021-08-15 | 2021-08 | P2370R0 | LEWG Library Evolution,LWG Library |
| P2372R2 | Fixing locale handling in chrono formatters | Victor Zverovich | 2021-08-14 | 2021-08 | P2372R1 | LWG Library |
| P2387R1 | Pipe support for user-defined range adaptors | Barry Revzin | 2021-08-14 | 2021-08 | P2387R0 | LEWG Library Evolution |
| P2388R1 | Minimum Contract Support: either Ignore or Check_and_abort | Andrzej Krzemieński | 2021-08-15 | 2021-08 | SG21 Contracts | |
| P2393R1 | Cleaning up integer-class types | Tim Song | 2021-08-06 | 2021-08 | P2393R0 | LWG Library |
| P2414R1 | Pointer lifetime-end zap proposed solutions | Paul E. McKenney | 2021-08-13 | 2021-08 | P2414R0 | EWG Evolution |
| P2415R1 | What is a view? | Barry Revzin | 2021-08-15 | 2021-08 | P2415R0 | LEWG Library Evolution |
| P2418R0 | Add support for std::generator-like types to std::format | Victor Zverovich | 2021-08-08 | 2021-08 | LEWG Library Evolution | |
| P2419R0 | Clarify handling of encodings in localized formatting of chrono types | Victor Zverovich | 2021-08-12 | 2021-08 | SG16 Unicode,LEWG Library Evolution | |
| P2420R0 | 2021 Summer Library Evolution Polls | Bryce Adelstein Lelbach | 2021-08-03 | 2021-08 | LEWG Library Evolution | |
| P2423R0 | C Floating Point Study Group Liaison Report | Rajan Bhakta | 2021-08-04 | 2021-08 | SG6 Numerics,SG22 Compatability | |
| P2425R0 | Expression Function Body | Mihail Naydenov | 2021-08-22 | 2021-08 | EWGI SG17: EWG Incubator | |
| P2428R0 | Slides: BSI issues with P2300 | Gašper Ažman | 2021-08-16 | 2021-08 | LEWG Library Evolution |
By Administrator | Jul 28, 2021 11:11 AM | Tags: None
The 2021-07 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4894 | Business Plan and Convener's Report | Herb Sutter | 2021-07-13 | 2021-07 | All of WG21 | |
| P0288R6 | move_only_function (was any_invocable) | Ryan McDougall, Matt Calabrese | 2021-07-13 | 2021-07 | P0288R5 | LWG Library |
| P0847R7 | Deducing this | Barry Revzin | 2021-07-13 | 2021-07 | P0847R6 | CWG Core |
| P1206R4 | Conversions from ranges to containers | Corentin Jabot | 2021-07-14 | 2021-07 | P1206R3 | LEWG Library Evolution |
| P1726R5 | Pointer lifetime-end zap (informational/historical) | Paul E. McKenney | 2021-07-14 | 2021-07 | P1726R4 | SG1 Concurrency and Parallelism,SG12 Undefined and Unspecified Behavior,EWG Evolution |
| P2036R2 | Changing scope for lambda trailing-return-type | Barry Revzin | 2021-07-22 | 2021-07 | P2036R1 | CWG Core |
| P2066R8 | Suggested draft TS for C++ Extensions for Minimal Transactional Memory | Jens Maurer | 2021-07-15 | 2021-07 | P2066R7 | LEWG Library Evolution,CWG Core |
| P2093R7 | Formatted output | Victor Zverovich | 2021-07-04 | 2021-07 | P2093R6 | SG16 Unicode,LEWG Library Evolution |
| P2167R1 | Improved Proposed Wording for LWG 2114 (contextually convertible to bool) | Daniel Krügler | 2021-07-15 | 2021-07 | P2167R0 | LWG Library |
| P2198R2 | Freestanding Feature-Test Macros and Implementation-Defined Extensions | Ben Craig | 2021-07-10 | 2021-07 | P2198R1 | SG10 Feature Test,LEWG Library Evolution |
| P2242R3 | Non-literal variables (and labels and gotos) in constexpr functions | Ville Voutilainen | 2021-07-13 | 2021-07 | P2242R2 | CWG Core |
| P2249R1 | Mixed comparisons for smart pointers | Giuseppe D'Angelo | 2021-07-14 | 2021-07 | P2249R0 | LEWG Library Evolution |
| P2273R2 | Making std::unique_ptr constexpr | Andreas Fertig | 2021-07-05 | 2021-07 | P2273R1 | LEWG Library Evolution |
| P2290R2 | Delimited escape sequences | Corentin Jabot | 2021-07-15 | 2021-07 | P2290R1 | SG22 Compatability,EWG Evolution |
| P2295R5 | Support for UTF-8 as a portable source file encoding | Corentin Jabot | 2021-07-16 | 2021-07 | P2295R4 | SG22 Compatability,EWG Evolution |
| P2300R1 | `std::execution` | Michał Dominiak | 2021-07-06 | 2021-07 | P2300R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2316R1 | Consistent character literal encoding | Corentin Jabot | 2021-07-11 | 2021-07 | P2316R0 | SG22 Compatability,EWG Evolution |
| P2338R1 | Freestanding Library: Character primitives and the C library | Ben Craig | 2021-07-10 | 2021-07 | P2338R0 | SG14 Low Latency,SG22 Compatability,LEWG Library Evolution |
| P2347R1 | Argument type deduction for non-trailing parameter packs | Corentin Jabot | 2021-07-15 | 2021-07 | P2347R0 | EWG Evolution |
| P2350R1 | constexpr class | Andreas Fertig | 2021-07-15 | 2021-07 | P2350R0 | EWG Evolution |
| P2362R1 | Remove non-encodable wide character literals and multicharacter wide character literals | Peter Brett | 2021-07-15 | 2021-07 | P2362R0 | EWG Evolution |
| P2392R1 | Pattern matching using "is" and "as" | Herb Sutter | 2021-07-19 | 2021-07 | P2392R0 | EWG Evolution |
| P2401R0 | Add a conditional noexcept specification to std::exchange | Giuseppe D'Angelo | 2021-07-14 | 2021-07 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P2402R0 | A free function linear algebra interface based on the BLAS (slides) | Mark Hoemmen | 2021-06-29 | 2021-07 | LEWG Library Evolution | |
| P2403R0 | Presentation on P2300 - std::execution | Michael Garland | 2021-07-06 | 2021-07 | SG1 Concurrency and Parallelism,LEWG Library Evolution | |
| P2404R0 | Relaxing equality_comparable_with's and three_way_comparable_with's common reference requirements to | Justin Bassett | 2021-07-25 | 2021-07 | LWG Library | |
| P2405R0 | nullopt_t and nullptr_t should both have operator and operator== | Justin Bassett | 2021-07-25 | 2021-07 | LWG Library | |
| P2406R0 | Fix counted_iterator interaction with input iterators | Yehezkel Bernat | 2021-07-11 | 2021-07 | SG9 Ranges | |
| P2407R0 | Freestanding Library: Partial Classes | Emil Meissner | 2021-07-12 | 2021-07 | LEWG Library Evolution | |
| P2408R0 | Ranges views as inputs to non-Ranges algorithms | David Olsen | 2021-07-14 | 2021-07 | LEWG Library Evolution | |
| P2409R0 | Requirements for Usage of C++ Modules at Bloomberg | Daniel Ruoso | 2021-07-12 | 2021-07 | SG15 Tooling | |
| P2410R0 | Type-and-resource safety in modern C++ | Bjarne Stroustrup | 2021-07-22 | 2021-07 | All of WG21 | |
| P2411R0 | Thoughts on pattern matching | Bjarne Stroustrup | 2021-07-22 | 2021-07 | All of WG21 | |
| P2412R0 | Minimal module support for the standard library | Bjarne Stroustrup | 2021-07-22 | 2021-07 | All of WG21 | |
| P2413R0 | Remove unsafe conversions of unique_ptr | Lénárd Szolnoki | 2021-07-25 | 2021-07 | LEWGI SG18: LEWG Incubator | |
| P2414R0 | Pointer lifetime-end zap proposed solutions | Paul E. McKenney | 2021-07-14 | 2021-07 | EWG Evolution | |
| P2415R0 | What is a view? | Barry Revzin | 2021-07-14 | 2021-07 | LEWG Library Evolution | |
| P2416R0 | Presentation of requirements in the standard library | Jens Maurer | 2021-07-15 | 2021-07 | LWG Library | |
| P2417R0 | A more constexpr bitset | Daniil Goncharov | 2021-07-25 | 2021-07 | LEWG Library Evolution,LWG Library |
By Administrator | Jun 30, 2021 02:03 PM | Tags: None
The 2021-06 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4887 | PL22.16/WG21 agenda: 7 June 2021, Virtual Meeting | John Spicer | 2021-05-21 | 2021-06 | All of WG21 | |
| N4888 | WG21 virtual meetings: 2021-06, and -10 | Herb Sutter | 2021-05-24 | 2021-06 | All of WG21 | |
| N4889 | WG21 admin telecon meeting: 2021-09 | Herb Sutter | 2021-05-24 | 2021-06 | All of WG21 | |
| N4890 | WG21 2021-05 Admin telecon minutes | Nina Ranns | 2021-06-25 | 2021-06 | All of WG21 | |
| N4891 | WG21 2021-06 Virtual Meeting Minutes of Meeting | Nina Ranns | 2021-06-24 | 2021-06 | All of WG21 | |
| N4892 | Working Draft, Standard for Programming Language C++ | Thomas Köppe | 2021-06-18 | 2021-06 | All of WG21 | |
| N4893 | Editors' Report - Programming Languages - C++ | Thomas Köppe | 2021-06-18 | 2021-06 | All of WG21 | |
| P0205R1 | Efficient Seeding of Random Number Engines | Moritz Klammler | 2021-06-24 | 2021-06 | P0205R0 | SG6 Numerics,LEWG Library Evolution,LWG Library |
| P0447R15 | Introduction of std::hive to the standard library | Matt Bentley | 2021-06-16 | 2021-06 | P0447R14 | SG14 Low Latency,LEWG Library Evolution,All of WG21 |
| P0533R7 | constexpr for cmath and cstdlib | Oliver Rosten | 2021-06-24 | 2021-06 | P0533R6 | LEWG Library Evolution |
| P0533R8 | constexpr for cmath and cstdlib | Oliver Rosten | 2021-06-24 | 2021-06 | P0533R7 | CWG Core,LWG Library |
| P1018R11 | C++ Language Evolution status pandemic edition 2021/05 | JF Bastien | 2021-06-01 | 2021-06 | P1018R10 | EWG Evolution,All of WG21 |
| P1072R8 | basic_string::resize_and_overwrite | Chris Kennelly | 2021-06-03 | 2021-06 | P1072R7 | LWG Library |
| P1072R8 | basic_string::resize_and_overwrite | Chris Kennelly | 2021-06-03 | 2021-06 | P1072R7 | LWG Library |
| P1132R8 | out_ptr - a scalable output pointer abstraction | JeanHeyd Meneide | 2021-06-10 | 2021-06 | P1132R7 | LWG Library |
| P1202R3 | Asymmetric Fences | David Goldblatt | 2021-06-14 | 2021-06 | P1202R2 | LWG Library |
| P1642R6 | Freestanding Library: Easy [utilities], [ranges], and [iterators] | Ben Craig | 2021-05-30 | 2021-06 | P1642R5 | LWG Library |
| P1664R4 | reconstructible_range - a concept for putting ranges back together | JeanHeyd Meneide | 2021-06-15 | 2021-06 | P1664R3 | SG9 Ranges,LEWG Library Evolution |
| P1675R2 | rethrow_exception must be allowed to copy | Billy O'Neal | 2021-05-25 | 2021-06 | P1675R1 | CWG Core,LWG Library |
| P1689R4 | Format for describing dependencies of source files | Ben Boeckel | 2021-06-14 | 2021-06 | P1689R3 | SG15 Tooling,SG16 Unicode |
| P1708R5 | Simple Statistical Functions | Richard Dosselman | 2021-06-14 | 2021-06 | P1708R4 | SG6 Numerics,SG19 Machine Learning,LEWG Library Evolution |
| P1967R4 | #embed - a simple, scannable preprocessor-based resource acquisition method | JeanHeyd Meneide | 2021-06-19 | 2021-06 | P1967R3 | EWG Evolution |
| P2164R5 | views::enumerate | Corentin Jabot | 2021-06-15 | 2021-06 | P2164R4 | SG9 Ranges |
| P2165R2 | Compatibility between tuple, pair and tuple-like objects | Corentin Jabot | 2021-06-15 | 2021-06 | P2165R1 | LEWG Library Evolution |
| P2290R1 | Delimited escape sequences | Corentin Jabot | 2021-06-07 | 2021-06 | P2290R0 | SG22 Compatability,EWG Evolution |
| P2295R4 | Support for UTF-8 as a portable source file encoding | Corentin Jabot | 2021-06-14 | 2021-06 | P2295R3 | SG16 Unicode,SG22 Compatability,EWG Evolution |
| P2299R3 | `mdspan`s of All Dynamic Extents | Bryce Adelstein Lelbach | 2021-06-07 | 2021-06 | P2299R2 | LEWG Library Evolution |
| P2300R0 | `std::execution` | Michał Dominiak | 2021-06-16 | 2021-06 | SG1 Concurrency and Parallelism,LEWG Library Evolution | |
| P2301R1 | Add a pmr alias for std::stacktrace | Steve Downey | 2021-06-14 | 2021-06 | P2301R0 | LWG Library |
| P2321R2 | zip | Tim Song | 2021-06-11 | 2021-06 | P2321R1 | LWG Library |
| P2322R3 | ranges::fold | Barry Revzin | 2021-06-13 | 2021-06 | P2322R2 | LEWG Library Evolution |
| P2340R1 | Clarifying the status of the "C headers" | Thomas Köppe | 2021-06-11 | 2021-06 | P2340R0 | SG22 Compatability,LEWG Library Evolution,LWG Library |
| P2347R0 | Argument type deduction for non-trailing parameter packs | Corentin Jabot | 2021-06-14 | 2021-06 | EWG Evolution | |
| P2361R1 | Unevaluated string literals | Corentin Jabot | 2021-06-11 | 2021-06 | P2361R0 | SG16 Unicode,EWG Evolution |
| P2368R1 | 2021 Spring Library Evolution Polls | Bryce Adelstein Lelbach | 2021-05-27 | 2021-06 | P2368R0 | LEWG Library Evolution |
| P2370R0 | Stacktrace from exception | Andrei Nekrashevich | 2021-06-08 | 2021-06 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution,LWG Library | |
| P2380R1 | reference_wrapper Associations | Robert Leahy | 2021-06-03 | 2021-06 | P2380R0 | LEWG Library Evolution |
| P2384R0 | 2021 Spring Library Evolution Poll Outcomes | Bryce Adelstein Lelbach | 2021-06-07 | 2021-06 | LEWG Library Evolution | |
| P2385R0 | C++ Standard Library Issues to be moved in Virtual Plenary, June 2021 | Jonathan Wakely | 2021-05-26 | 2021-06 | All of WG21 | |
| P2386R0 | Core Language Working Group "ready" issues for the June, 2021 meeting | William M. (Mike) Miller | 2021-06-25 | 2021-06 | All of WG21 | |
| P2387R0 | Pipe support for user-defined range adaptors | Barry Revzin | 2021-06-12 | 2021-06 | LEWG Library Evolution | |
| P2388R0 | Abort-only contract support | Andrzej Krzemieński | 2021-06-15 | 2021-06 | SG21 Contracts | |
| P2390R0 | Add annotations for unreachable control flow | Jens Gustedt | 2021-06-07 | 2021-06 | SG22 Compatability | |
| P2391R0 | C23 Update Report | Aaron Ballman | 2021-06-07 | 2021-06 | All of WG21 | |
| P2392R0 | Pattern matching using "is" and "as" | Herb Sutter | 2021-06-14 | 2021-06 | EWG Evolution | |
| P2393R0 | Cleaning up integer-class types | Tim Song | 2021-06-12 | 2021-06 | LWG Library | |
| P2395R0 | WG21 2021-06 Virtual Meeting Record of Discussion | Nina Ranns | 2021-06-24 | 2021-06 | All of WG21 | |
| P2396R0 | Concurrency TS 2 fixes | David Goldblatt | 2021-06-14 | 2021-06 | LEWG Library Evolution,LWG Library | |
| P2397R0 | SG16: Unicode meeting summaries 2021-04-14 through 2021-05-26 | Tom Honermann | 2021-06-15 | 2021-06 | SG16 Unicode | |
| P2400R1 | Library Evolution Report: 2021-02-23 to 2021-05-25 | Bryce Adelstein Lelbach | 2021-06-07 | 2021-06 | P2400R0 | All of WG21 |
By Blog Staff | Jun 9, 2021 02:16 PM | Tags: None
Standards progress continues:
Trip report: Summer 2021 ISO C++ standards meeting (virtual)
by Herb Sutter
From the article:
On Monday, the ISO C++ committee held its third full-committee (plenary) meeting of the pandemic and adopted a few more features and improvements for draft C++23...