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Feature/issue/defectAuthor/proposerPaperReasonStatusRemarksDomainGithubReflector
Related Papers
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memory managementBrittany Friedmanhttps://wg21.link/P0040Adopted in C++17Games
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likely unlikelyClay Trychtahttps://wg21.link/P0479Adopted in C++20Finance
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Affinity
Gordon Brown, Ruyman Reyes, Michael Wong, Mark Hoemmen, Jeff Hammond, Tom Scogland, Domagoj Šarić
https://wg21.link/p1436SG14-SG1-LEWGWording added now, SG1-LEWGAll
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System topology discovery for heterogeneous & distributed computing
Gordon Brown, Ruyman Reyes, Michael Wong, Mark Hoemmen, Jeff Hammond, Tom Scogland, Domagoj Šarić
https://wg21.link/p1795SG14-SG1All
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Freestanding Library: Easy UtilitiesBen Craighttps://wg21.link/P1642C++23P0829 split, implementation is done in GCC. Feature test macro parts put in a new paper, TBDEmbeddedP0829R2
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Freestanding Library: Rewording Status Quo
Ben Craighttps://wg21.link/P1641C++23Merged into P1642 and feature test macro paper TBDEmbedded
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Freestanding LanguageBen Craighttps://wg21.link/P1105SG14 (closed)operator new now covered in P2013, in EWGEmbedded
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Freestanding ::operator newBen Craighttps://wg21.link/P2013C++26Embedded
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Freestanding Character primitives and the C library
Ben Craighttps://wg21.link/P2338C++26Embedded
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Freestanding Partial ClassesBen Craig, Emil Meissnerhttps://wg21.link/P2407C++26Embedded
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Freestanding inout expected span Ben Craighttps://wg21.link/P2833C++26Targeting C++26Embedded
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Freestanding Remove strtokBen Craighttps://wg21.link/P2937C++26Targeting C++26Embedded
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Freestanding algorithm, numeric, and random
Ben Craighttps://wg21.link/P2976LWGEmbedded
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Linear Algebra syntaxGuy Davidson, Bob Steagallhttps://wg21.link/P1385LEWGJune 15 LEWG reviewLA
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Linear Algebra BLASMark Hoemmen et al.https://wg21.link/P1673C++26LA
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z-order_curve data packing
Jeremy OngNew ideaSG14
This could be implemented as an mdspan (P0009) Layout. Layout is an extension point, so users could write a custom Layout that implements this ordering. If there's interest to add this to the Standard, I think the best thing would be to make it a follow-on paper to P0009.Games
https://lists.isocpp.org/sg14/2019/12/0274.php
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executor with embedded schedulerDetlef VollmannNew ideaSG14-SG1Embedded
https://lists.isocpp.org/sg14/2019/12/0277.php
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Intrusive pointersIzzy Muertehttps://wg21.link/p0468SG14-LEWGhttp://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1351r0.html#biblio-p0468r1Embedded
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Deterministic ExceptionsHerb Sutterhttps://wg21.link/P709SG14-LEWGAllP0323R3
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status_code and standard errorNiall Douglashttps://wg21.link/P1028LEWGBlocked by NB comment processingAll
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Function failure annotationJens Gustedt and Niall Douglashttp://www.open-std.org/jtc1/sc22/wg14/www/docs/n2429.pdfWG14Awaiting prototype C compilerAll
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Hive- ColonyMatthew Bentleyhttps://wg21.link/P0447LWGJonathan Wakely and Guy Davidson proxy, hard to name
Games, Finance, HPC, physics and particle simulation, robotics, server/client applications.
https://github.com/mattreecebentley/plf_colony
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Ring BufferGuy, Matthew Butler, Inbal Levihttp://wg21.link/p0059
Waiting for status from P1958 authors, Looking for usecases (please feel free to send)
Two directions are examined: (1) can P1958 be extended to support P0059 use cases (if not, continue with it) and (2) The usecase of ring_spanGames, Finance, EmbeddedSG14/ring.hP1976R0P1958
Inbal <sinbal2l@gmail.com>, Matthew: <mbutler@laurellye.com>
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Object relocation ("trivially relocatable")Arthur O'Dwyer
https://wg21.link/P1144EWGIgood for games too, Bloomberg may be working on it too P2786, most without core language supportEmbedded, Games
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Embedded/Games
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flat mapZach Lainehttps://wg21.link/P0429C++23originally SG14 Guy Davidson proposal, Tim song addressing some of the issuesGames, Finance
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member layout controlRene Rivierahttps://isocpp.org/files/papers/D1605R0.html
dropped Pal Baloch switched from attributes to contextual keywords
RF: we should folow P1112 & P1847. And we better come up with a better alternative for specifying struct layoutGames, Finance, Embedded
https://wg21.link/P1112
https://wg21.link/P1847
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numericsAlexander Zaitsevhttps://wg21.link/P1889SG6-LEWGIlisting of current numeric feature statusFinance
P1890R0P1719R2
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Orthogonal polynomials (Chebyshev, Legendre, Hermite, Laguerre)
Neil Horlock/QUBNew ideaSG6/19
Embedded (Digital Signal Processing)
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improving debug buildsJohn McFarlanehttps://wg21.link/P1832SG14-SG15Games
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Exception Handling Size benchmarkBen Craighttps://wg21.link/P1640
SG14-DGEmbedded
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Exception Handling Speed bechmarkBen Craighttps://wg21.link/P1886SG14-DGSebastien Büttner has results for ARMEmbedded
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Statistical FunctionsRichard Dosselman et alhttps://wg21.link/P1708LEWGML
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Differentiable programming
Marco Foco, Max Rietmann, Vassil Vassilev, Michael Wong
https://wg21.link/P2072SG19P-Number assigned: 1707ML
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Numerical DifferentiationMarco Foco, Vassil VassilevNew ideaSG19/SG6ML
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Graph Data StructuresPhil Ratzloff et alhttps://wg21.link/P1709cppcon 2022SG19ML
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Physical UnitsMateusz Puszhttps://wg21.link/P1935SG6/16bound with LA paperAll
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C++ exceptions and alternativesBjarne Stroustruphttps://wg21.link/P1947WG21position papersAll
R0824R1
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Portable AssumptionsTimur Doumlerhttps://wg21.link/P1774C++23All
P2064R0N4425
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Named Return Value Copy ElisionAnton ZhilinNew ideaProposals listhttps://gist.github.com/Anton3/594141354ff9625db0b85775799312c7All?
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Thread Constructor Attributes (setting attributes that cannot be changed after creation, e.g. the stack size)P0320: Vicente J. Botet Escriba; P0484: Patrice Roy, Billy Baker, Arthur O'Dwyer;https://wg21.link/P0320R1
https://wg21.link/P0484r1		 Corentine is taking over in P2019The ability to control creation-time-only aspects of new threads is mandatory in some real-time projects. The exact mechanism we choose is not really important - but we should present a solution.EmbeddedSee also: Patrice's presentation https://www.youtube.com/watch?v=iDztwNhIVVM
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PI mutexesnone?std::mutex has no standard facility to set priority inheritance, making standard mutexes unusable in multithreaded real-time systems. (and - once we're at it - we should add P ceiling, too)Embedded
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Fixed-capacity type erasure (inplace_function, inplace_any)
Arthur O'DwyerSG14 github only
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Fixed-capacity type erasure (function_ref)Vittorio Romeohttps://wg21.link/P0792LWG-C++26probably C++2b
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Inplace Vector: Fixed-capacity data structures (fixed_capacity_vector (static_vector))
Gonzalo Brito Gadeschihttps://wg21.link/P0843LWGsee also fixed_ring from https://wg21.link/p0059r0, std::inplace_vector<T,N> in LWG — There was a super-late-breaking suggestion of std::inplace_vector<T,N,A> to allow inplace_vector to
- propagate std::pmr to its elements
- be used with Boost.Interprocess
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new Random number generator
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Audio Timur DoumlerSG18-use casesabandoned in Cologne
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ExecutorJared Hoberock et al. wg21.link/P2300
LEWGlanguage facility for tag_invoke
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Pipeline ChannelsCan it work on top of executors, but may be ranges
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CNL (fixed point, elastic numbers et. al)John McFarlanehttps://wg21.link/P0037
https://github.com/johnmcfarlane/cnl#further-reading
Need time to update for C++20
waiting for SG6Embedded (others?)
https://github.com/johnmcfarlane/cnl
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Low-Cost Deterministic C++ Exceptions for Embedded Systems
James Renwick
https://www.pure.ed.ac.uk/ws/portalfiles/portal/78829292/low_cost_deterministic_C_exceptions_for_embedded_systems.pdf
SG14Looking for collaborator to test his github; still need to post this a P paper
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Try_castArthur O'DwyerP2927R1 — const E *std::try_cast<E>(exception_ptr)
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Better support for data oriented structures: allow repacking, in segmented buffers
will generative reflection help?
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Games collection propsalPatrice Roycppcon22Games
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Accessing object representationsTimur Doumlerwg21.link/P1839cppcon22
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GPU and acceleration:
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DFP Finance needs a decimal type with 64-bit integer with a fixed point decimal.
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