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	Doc Date	Mailing Date
	P3955R2	It's Scopes All the Way Down	R. Leahy	LEWG SG1	2026-09-21	2026-09
Doc Date 2026-09-21 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Revisions R1 R0 Tracking issue View on GitHub Abstract This paper lays out an approach to achieving the same effect as regular, synchronous scopes in the asynchronous domain (i.e. `std::execution` [1]), including asynchronous construction and destruction of objects.
	P4191R1	is_nothrow_connectable_in	R. Leahy	LEWG	2026-09-09	2026-09
Doc Date 2026-09-09 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG Revisions R0 Tracking issue View on GitHub Abstract This paper proposes adding two type traits to the `std::execution` namespace which allow the determination of whether `std::execution::connect` throws for a certain sender in a certain environment.
	P4269R1	when_all Oughtn't Hallucinate set_stopped	R. Leahy	LEWG SG1	2026-08-30	2026-09
Doc Date 2026-08-30 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Revisions R0 Tracking issue View on GitHub Abstract This paper proposes that `std::execution::when_all` not use a `std::inplace_stop_source` when it can be statically determined such a stop source would never be used.
	P4288R2	Stop the Decay	R. Leahy	LEWG SG1	2026-09-20	2026-09
Doc Date 2026-09-20 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Revisions R1 R0 Tracking issue View on GitHub Abstract This paper proposes that `std::execution` algorithms pass through by-reference result datums from child operations rather than uniformly decay-copying them. To aid in the accomplishment thereof it also proposes class templates which abstract the necessary completion storage and completion signature transformation. This paper does not propose changing how `std::execution` algorithms store the argum
	P4320R1	std::execution::sequence	R. Leahy	LEWG SG1	2026-09-21	2026-09
Doc Date 2026-09-21 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Revisions R0 Tracking issue View on GitHub Abstract `sequence` adapts any number of input senders into a sender which completes when all input senders have completed, with each input sender’s asynchronous operation being started only after the completion of the preceding input sender’s asynchronous operation.
	P4333R0	Asynchronous main	I. Petersen, J. Wong, R. Leahy	EWG LEWG SG1 SG17 SG18	2026-09-22	2026-09
Doc Date 2026-09-22 Mailing Date 2026-09 Unassigned Author(s) Ian Petersen, Jessica Wong, Robert Leahy Target Audience EWG LEWG SG1 SG17 SG18 Abstract This paper proposes that `main` should have an alternate, sender factory form.
	P4354R0	No More transform_sender Workarounds	R. Leahy	LWG	2026-09-01	2026-09
Doc Date 2026-09-01 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LWG Abstract This paper proposes wording-only changes to simplify the specification of `let_value`, `let_error`, and `let_stopped`, along with future, proposed asynchronous algorithms.
	P4357R0	Reflections on Completion Signatures	R. Leahy	LEWG SG1	2026-09-09	2026-09
Doc Date 2026-09-09 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Abstract This paper proposes changes and additions to better integrate `std::meta::info` into the calculation of completion signatures in `std::execution`.
	P4373R0	Why Did You Stop?	R. Leahy	LEWG SG1	2026-09-10	2026-09
Doc Date 2026-09-10 Mailing Date 2026-09 Unassigned Author(s) Robert Leahy Target Audience LEWG SG1 Abstract This paper proposes that, in certain cases, consumers be able to determine that asynchronous operations only send `std::execution::set_stopped_t()` when requested.

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

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