WG21 PAPERS

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Select	Paper	Title	Authors	Audience
	P2929R3	simd_invoke	D. Towner, R. Arutyunyan	LEWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Daniel Towner, Ruslan Arutyunyan Target Audience LEWG Revisions R4 R2 Tracking issue View on GitHub Abstract ISO/IEC 19570:2018 introduced data-parallel types to the C++ Extensions for Parallelism TS [P1928R15]. That paper, and several ancillary papers, do an excellent job of setting out the main features of an extension to C++ which allows generic data parallel programming on arbitrary targets. However, it is inevitable that the programmer will want to make some use of target-specific intrinsics in orde
	P2956R2	Add saturating library support to std::simd	D. Towner, R. Arutyunyan	LWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Daniel Towner, Ruslan Arutyunyan Target Audience LWG Revisions R3 Tracking issue View on GitHub Abstract The Working Draft of C++26 includes data parallel types. It mostly provides operators which work on or with `std::simd` types, but it also includes overloads of useful functions from other parts of C++ (e.g., sin, cos, abs). In [P0543R3] a proposal was made to provide saturating operation support for some basic arithmetic operations and casts. In particular, `saturating_add`, `saturating_sub`, `sa
	P2964R3	Allowing user-defined types in std::simd	D. Towner, R. Arutyunyan	LEWG SG6
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Daniel Towner, Ruslan Arutyunyan Target Audience LEWG SG6 Revisions R5 R4 R2 Tracking issue View on GitHub Abstract The C++ standard library includes data-parallel types in the `<simd>` header, currently restricting element types to a closed list: arithmetic types and `std::complex` specializations. This paper proposes a minimal change to the specification in which the closed list is replaced with trait-based constraints that handle all existing types while naturally extend support to enumerations, `std::byte`
	P3732R2	Numeric Range Algorithms	R. Arutyunyan, M. Hoemmen, A. Kukanov, B. Lelbach, A. Majumder	SG1 SG9
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Ruslan Arutyunyan, Mark Hoemmen, Alexey Kukanov, Bryce Adelstein Lelbach, Abhilash Majumder Target Audience SG1 SG9 Tracking issue View on GitHub Abstract We propose `ranges` algorithm overloads (both parallel and non-parallel) for the `<numeric>` header.
	P3787R2	Adjoints to "Enabling list-initialization for algorithms": uninitialized_fill	G. D'Angelo, R. Arutyunyan	LEWG LWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Giuseppe D'Angelo, Ruslan Arutyunyan Target Audience LEWG LWG Revisions R1 Tracking issue View on GitHub Disposition Date 2026-03Adopted Abstract In the Tokyo 2024 meeting [P2248R8] (Enabling list-initialization for algorithms) was adopted.
	P3804R2	Iterating on parallel_scheduler	L. Teodorescu, R. Arutyunyan	LWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Lucian Radu Teodorescu, Ruslan Arutyunyan Target Audience LWG Tracking issue View on GitHub Disposition Date 2026-03Adopted Abstract `parallel_scheduler` [[P2079R10](https://wg21.link/p2079r10)] was a long time in the making and was it adopted in Sofia 2025; still more design concerns were raised after that. This paper proposes to iterate on some of these aspects, aiming to achieve the best possible outcome from `parallel_scheduler`.
	P3983R1	simd object representation	D. Towner, R. Arutyunyan	LEWG LWG SG1
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Daniel Towner, Ruslan Arutyunyan Target Audience LEWG LWG SG1 Revisions R2 R0 Tracking issue View on GitHub Abstract The Working Draft makes `simd` types trivially copyable types, which allows `std::bit_cast` operations. However, the object representation is unspecified, making the results implementation-defined.
	P4031R1	Rename system_context_replaceability namespace	R. Arutyunyan	LEWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Ruslan Arutyunyan Target Audience LEWG Revisions R0 Tracking issue View on GitHub Abstract This paper proposes to rename `system_context_replaceability` namespace.
	P4154R0	Renaming various execution things	T. Song, R. Arutyunyan, A. O’Dwyer	LWG
Intent Proposal Mailing Date 2026-04 Post-Croydon Author(s) Tim Song, Ruslan Arutyunyan, Arthur O’Dwyer Target Audience LWG Tracking issue View on GitHub Disposition Date 2026-03Adopted Abstract This paper provides replacement wording for the following papers:

Showing 9 of 9 papers · source: open-std.org

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