WG21 PAPERS

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Select	Paper	Title	Authors	Audience	Doc Date	Mailing Date
	P1219R3	Homogeneous variadic function parameters	Ian Pike I. Pike , Eczbek Eczbek , Jan Schultke J. Schultke , James Touton J. Touton	EWG	2026-10-23	2026-10
Doc Date 2026-10-23 Mailing Date 2026-10 Pre-Búzios Author(s) Ian Pike, Eczbek, Jan Schultke, James Touton Target Audience EWG Tracking issue View on GitHub Abstract We propose homogeneous function parameter packs for C++29: a variable number of parameters of one declared type. One declaration replaces fixed-arity overload families, retaining ordinary parameter initialization, conversion ranking, and a compile-time count.
	P3568R3	break label; and continue label;	Jan Schultke J. Schultke	CWG	2026-10-11	2026-10
Doc Date 2026-10-11 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience CWG Revisions R2 Tracking issue View on GitHub Abstract Introduce `break label` and `continue label` to `break` and `continue` out of nested loops and `switch`es as accepted into C2y, and relax label restrictions.
	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++.
	P3938R2	Values of floating-point types	Jan Schultke J. Schultke	SG6	2026-10-11	2026-10
Doc Date 2026-10-11 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke Target Audience SG6 Revisions R1 Tracking issue View on GitHub Abstract It is not specified what values a floating-point type may represent in C++, leading to an unclear model for floating-point types. This paper introduces the necessary wording to specify what may be found between the lines of the standard.
	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.
	P4355R1	Floating-point std::saturating_cast	Jan Schultke J. Schultke , Matt Borland M. Borland	SG6	2026-10-08	2026-10
Doc Date 2026-10-08 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke, Matt Borland Target Audience SG6 Revisions R0 Tracking issue View on GitHub Abstract `std::saturating_cast` should accept floating-point operands.
	P4382R0	Decomposing floating-point numbers	Jan Schultke J. Schultke , Matt Borland M. Borland	SG6	2026-10-10	2026-10
Doc Date 2026-10-10 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke, Matt Borland Target Audience SG6 Abstract There should be a standard-library function for decomposing floating-point numbers into a sign bit, exponent, and integer significand.
	P4433R0	Do not remove Contracts from C++26	Timur Doumler T. Doumler , Joshua Berne J. Berne , Gašper Ažman G. Ažman , Peter Bindels P. Bindels , Peter Dimov P. Dimov , Eric Fiselier E. Fiselier , Fabio Fracassi F. Fracassi , Pablo Halpern P. Halpern , Tom Honermann T. Honermann , John Lakos J. Lakos , Nevin Liber N. Liber , Lisa Lippincott L. Lippincott , René Ferdinand Rivera Morell R. Morell , Oliver Rosten O. Rosten , Jan Schultke J. Schultke , Hui Xie H. Xie	EWG	2026-10-23	2026-10
Doc Date 2026-10-23 Mailing Date 2026-10 Pre-Búzios Author(s) Timur Doumler, Joshua Berne, Gašper Ažman, Peter Bindels, Peter Dimov, Eric Fiselier, Fabio Fracassi, Pablo Halpern, Tom Honermann, John Lakos, Nevin Liber, Lisa Lippincott, René Ferdinand Rivera Morell, Oliver Rosten, Jan Schultke, Hui Xie Target Audience EWG Abstract In addition, the description of C++26 contract assertions given in [[P4334R0](http://wg21.link/p4334r0)] contains a number of inaccuracies. It misrepresents the specification itself,3 the amount of wording it consists of,4 its design intent,5 how it relates to hardening6 and static analysis,7 its existing implementations,8 existing practice,9 teachability,10 and proposed extensions.11 None of the
	P4444R1	std::big_int	Jan Schultke J. Schultke , Matt Borland M. Borland , Christopher Kormanyos C. Kormanyos	SG6	2026-10-10	2026-10
Doc Date 2026-10-10 Mailing Date 2026-10 Pre-Búzios Author(s) Jan Schultke, Matt Borland, Christopher Kormanyos Target Audience SG6 Revisions R0 Tracking issue View on GitHub Abstract We propose an infinite-precision integer in the form of a class template, with elastic operations.

Showing 11 of 11 papers · source: open-std.org

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