WG21 PAPERS

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Filter and export papers from the C++ Committee’s monthly mailings by time frame and audience using the options below, or refine your export further with the Select button. Links point directly to the official WG21 papers on open-std.org.

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Select	Paper	Title	Authors	Audience
	P0876R22	fiber_context - fibers without scheduler	O. Kowalke, N. Goodspeed	LEWG CWG LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Oliver Kowalke, Nat Goodspeed Target Audience LEWG CWG LWG Revisions R24 R23 Tracking issue View on GitHub Abstract This paper proposes a minimal API that enables stackful context switching without the need for a scheduler. The API is suitable to act as building-block for high-level constructs such as stackful coroutines as well as cooperative multitasking (aka user-land/green threads that incorporate a scheduling facility).
	P3844R4	Reword [simd.math] for consteval conversions	M. Kretz	LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Matthias Kretz Target Audience LWG Revisions R3 Tracking issue View on GitHub Abstract \| Document Number: \| P3844R4 \| \| --- \| --- \| \| Date: \| 2026-02-13 \| \| Reply-to: \| Matthias Kretz <m.kretz@gsi.de> \| \| Audience: \| LWG \| \| Target: \| C++26 \|
	P3856R5	New reflection metafunction - is_structural_type (US NB comment 49)	J. Dave, A. Meredith	LEWG LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Jagrut Dave, Alisdair Meredith Target Audience LEWG LWG Revisions R8 R7 R6 R4 Tracking issue View on GitHub Abstract Several parts of the standard and library refer to structural types, including library mandates that types be structural, yet there is no way to query whether a type is structural. Library mandates clauses mean that library implementers must somehow have this functionality, but it is simply not exposed to users. We propose a new reflection metafunction - is_structural_type(info) as a solution, w
	P3932R0	Resolve LWG4470: Fix integer-from in [simd]	M. Kretz	LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Matthias Kretz Target Audience LWG Tracking issue View on GitHub Abstract \| Document Number: \| P3932R0 \| \| --- \| --- \| \| Date: \| 2026-02-13 \| \| Reply-to: \| Matthias Kretz <m.kretz@gsi.de> \| \| Audience: \| LWG \| \| Target: \| C++26 \|
	P3941R2	Scheduler Affinity	D. Kühl	LEWG LWG SG1
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Dietmar Kühl Target Audience LEWG LWG SG1 Revisions R4 R3 R1 Tracking issue View on GitHub Abstract There are a few NB comments raised about the way `affine_on` works:
	P3980R0	Task's Allocator Use	D. Kühl	LEWG LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Dietmar Kühl Target Audience LEWG LWG Revisions R1 Tracking issue View on GitHub Abstract There are a few NB comments about `task`’s use of allocators:
	P3983R0	simd object representation	D. Towner	LEWG LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Daniel Towner Target Audience LEWG LWG Revisions R2 R1 Tracking issue View on GitHub Abstract The Working Draft makes `simd` types `TriviallyCopyable`, which allows `std::bit_cast` operations. However, the object representation is unspecified, making the results implementation-defined.
	P4012R0	value-preserving consteval broadcast to simd::vec	M. Kretz	LEWG LWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Matthias Kretz Target Audience LEWG LWG Revisions R1 Tracking issue View on GitHub Abstract 1. Novel (no other type in the standard library does this2).

Showing 8 of 8 papers · source: open-std.org

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