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
	P2583R0	Symmetric Transfer and Sender Composition	M. Gill, V. Falco	LEWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Mungo Gill, Vinnie Falco Target Audience LEWG Revisions R4 R3 R2 R1 Tracking issue View on GitHub Abstract C++20 provides symmetric transfer ([P0913R1](https://wg21.link/p0913r1)[1]) - a mechanism where `await_suspend` returns a `coroutine_handle<>` and the compiler resumes the designated coroutine as a tail call. Coroutine chains execute in constant stack space. `std::execution` ([P2300R10](https://wg21.link/p2300r10)[5]) composes asynchronous operations through sender algorithms. These algorithms cre
	P4003R0	Coroutines for I/O	V. Falco, M. Gill, S. Gerbino	LEWG SG18
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Vinnie Falco, Mungo Gill, Steve Gerbino Target Audience LEWG SG18 Revisions R3 R2 R1 Tracking issue View on GitHub Abstract C++20 coroutines have five properties that, taken together, make them uniquely suited to asynchronous I/O: type erasure through `coroutine_handle<>` , customization through `promise_type` , stackless independently- resumable frames, symmetric transfer through `await_suspend` , and compiler-managed state that persists across suspension points. Each was designed for generality. Their conjunction yie
	P4007R0	Senders and Coroutines	V. Falco, M. Gill	LEWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Vinnie Falco, Mungo Gill Target Audience LEWG Revisions R3 R2 R1 Tracking issue View on GitHub Abstract `std::execution` serves its domain well. Different asynchronous domains have different costs, and a single model cannot minimize all of them simultaneously. This paper identifies four structural gaps where the sender model meets coroutines: three at the boundary - error reporting, error returns, and frame allocator propagation - and one inside the composition mechanism - the symmetric transfer gap
	P4014R0	The Sender Sub-Language	V. Falco, M. Gill	LEWG
Intent Proposal Mailing Date 2026-02 Pre-Croydon Author(s) Vinnie Falco, Mungo Gill Target Audience LEWG Revisions R2 R1 Tracking issue View on GitHub Abstract C++26 introduces a rich sub-language for asynchronous programming through `std::execution` ([P2300R10](https://wg21.link/p2300r10))[1].

Showing 4 of 4 papers · source: open-std.org

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