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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4 out of 4 papers selected for export
SelectPaper Title Authors Audience Doc Date Mailing Date
P4148R1 protocol: Structural Subtyping for C++ J. Coe, H. Dusikova, A. Peacock, P. Craig, N. Banglawala 2026-05
Intent Proposal
Mailing Date 2026-05 Unassigned
Target Audience SG18
Revisions R2R0
Tracking issue View on GitHub
Abstract We propose `protocol<T,` `A>` and `protocol_view<T>`, standard library vocabulary types for structural subtyping in C++. Interfaces are specified as plain structs; any type whose member functions satisfy the interface is accepted without requiring explicit inheritance.
P4198R0 Runtime Indexed Tuples A. Muneem 2026-05
Intent Proposal
Mailing Date 2026-05 Unassigned
Author(s) Abdul Muneem
Target Audience SG18
Tracking issue View on GitHub
P4210R0 copy_on_write: A Vocabulary Type for Lazily- Copied Values D. Pfeifer 2026-05
Intent Proposal
Mailing Date 2026-05 Unassigned
Author(s) Daniel Pfeifer
Target Audience SG18
Tracking issue View on GitHub
Abstract We propose the addition of a new class template `copy_on_write<T>` to the C++ Standard Library.
P4229R0 Canonical Parallel Scan: Expression and Observation Contracts for Reproducible Parallel Algorithms A. Drakeford 2026-05
Intent Proposal
Mailing Date 2026-05 Unassigned
Author(s) Andrew Drakeford
Target Audience SG6SG18SG22
Tracking issue View on GitHub
Abstract Blelloch [Blelloch1990] identifies `reduce`, `scan`, and `transform` as core parallel primitives. P4016R0 demonstrated that efficient, reproducible reduction is achievable using a tree-based abstract expression.
Showing 4 of 4 papers · source: open-std.org