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
	P3740R1	Last chance to fix std::nontype	Jan Schultke J. Schultke , Bronek Kozicki B. Kozicki	LEWG	2025-06-20	2025-07
Doc Date 2025-06-20 Mailing Date 2025-07 Post-Sofia Author(s) Jan Schultke, Bronek Kozicki Target Audience LEWG Revisions R0 Tracking issue View on GitHub Abstract P2472R3 introduced overloads for the `std::function_ref` constructor which utilize a helper type `std::nontype`. This helper type may be obsoleted by other active proposals, and its name has become a bad choice now that C++26 no longer replaced the term "non-type template parameter", with "constant template parameter".
	P3774R0	Rename std::nontype, and make it broadly useful	Jan Schultke J. Schultke , Bronek Kozicki B. Kozicki , Tomasz Kamiński T. Kamiński	LEWG	2025-07-15	2025-07
Doc Date 2025-07-15 Mailing Date 2025-07 Post-Sofia Author(s) Jan Schultke, Bronek Kozicki, Tomasz Kamiński Target Audience LEWG Tracking issue View on GitHub Abstract [[P3740R1]](https://isocpp%2eorg/files/papers/P3740R1%2ehtml) proposed to rename `std::nontype` to `std::constant_arg`, now that the term "non-type template parameter" no longer exists in the C++26 standard. This solution found weak consensus in LEWG, but there was no time in LWG to review the change, so it did not make it into C++26.
	P3792R0	Why `constant_wrapper` is not a usable replacement for `nontype`	Bronek Kozicki B. Kozicki	LEWG LWG	2025-07-13	2025-07
Doc Date 2025-07-13 Mailing Date 2025-07 Post-Sofia Author(s) Bronek Kozicki Target Audience LEWG LWG Tracking issue View on GitHub Abstract The lack of LEWG consensus during the Sofia meeting to replace `nontype` with `constant_wrapper` as a `function_ref` construction parameter has reportedly surprised some members of LWG. Plausibly, it might have also surprised the wider C++ community. This paper is an attempt to explain the process and the rationale behind the (lack of) decision for such a change.

Showing 3 of 3 papers · source: open-std.org

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