WG21 PAPERS

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Select	Paper	Title	Authors	Audience	Doc Date	Mailing Date
	P3643R5	std::to_signed and std::to_unsigned	Jan Schultke J. Schultke	LEWG	2026-10-14	2026-10
Doc Date 2026-10-14 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience LEWG Revisions R4 R3 Tracking issue View on GitHub Abstract Add `std::to_signed` and `std::to_unsigned` function templates in the style of `std::to_underlying`.
	P3666R5	Bit-precise integers	Jan Schultke J. Schultke	LEWG CWG	2026-10-18	2026-10
Doc Date 2026-10-18 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience LEWG CWG Revisions R4 R3 Tracking issue View on GitHub Abstract C23 has introduced so-called "bit-precise integers" into the language, which should be brought to C++ for compatibility, among other reasons. Following an exploration of possible designs in [[P3639R0]](https://wg21%2elink/p3639r0) "The `_BitInt` Debate", this proposal introduces a new set of fundamental types to C++.
	P3935R3	Rebasing <cmath> on C23	Jan Schultke J. Schultke	LEWG	2026-10-10	2026-10
Doc Date 2026-10-10 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience LEWG Revisions R2 R1 Tracking issue View on GitHub Abstract Most of C++26 is based on C23, but the header `<cmath>` is still based on C17. There are many useful C23 `<math.h>` features that should be provided in C++.
	P3969R3	Fixing std::bit_cast of types with padding bits	Jan Schultke J. Schultke	LEWG	2026-10-04	2026-10
Doc Date 2026-10-04 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience LEWG Revisions R2 R1 R0 Tracking issue View on GitHub Abstract When bit-casting a type containing padding bits to a type with no padding bits, `std::bit_cast` degenerates into an alternative spelling for `std::unreachable` (some exceptions apply). To prevent this inadvertent footgun, this proposal makes that degenerate form of `std::bit_cast` ill-formed.

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

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