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P3865 R1 Class template argument deduction (CTAD) for type template template parameters

C++26Targeted at C++26Targeted at C++26

CWGCoreCore

DRDefect ReportDefect Report

plenary-approvedPapers approved for inclusion in their target vehicle by plenary vote.Papers approved for inclusion in their target vehicle by plenary vote.

response-to-issue

straw-pollStraw pollStraw poll

Status: Open.

#2469 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3907 R0 Waving more ::result_type goodbye

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2570 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3908 R0 constexpr from_chars<float> / to_chars<float>

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2571 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3919 R0 Guaranteed-(quick-)enforced contracts

C++29Targeted at C++29Targeted at C++29

contractsContractsContracts

EWGEvolutionEvolution

Status: Open.

#2579 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3924 R0 Fix inappropriate font choices for "declaration"

C++26Targeted at C++26Targeted at C++26

CWGCoreCore

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

plenary-approvedPapers approved for inclusion in their target vehicle by plenary vote.Papers approved for inclusion in their target vehicle by plenary vote.

straw-pollStraw pollStraw poll

Status: Open.

#2582 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3925 R0 RO 3-292 29.10.8.3 [simd.comparison] Make basic_simd a Regular Type (with Boolean operator==)

LEWGLibrary EvolutionLibrary Evolution

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

Status: Open.

#2583 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3926 R0 Slides: operator T& on indirect (in defense of US 77-140)

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2584 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3928 R0 static_sized_range

LEWGLibrary EvolutionLibrary Evolution

SG9Ranges SGRanges SG

Status: Open.

#2585 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3931 R0 consteval all the non-allocating operator"" things

C++29Targeted at C++29Targeted at C++29

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2587 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3933 R0 constexpr std::hive

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2588 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3935 R0 Rebasing <cmath> on C23

C++29Targeted at C++29Targeted at C++29

LEWGLibrary EvolutionLibrary Evolution

SG22C / C++ liaisonC / C++ liaison

Status: Open.

#2589 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3936 R1 Safer atomic_ref::address (FR-030-310)

C++26Targeted at C++26Targeted at C++26

ISShip vehicle: ISShip vehicle: IS

LEWGLibrary EvolutionLibrary Evolution

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

Status: Open.

#2590 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3938 R1 Values of floating-point types

SG6NumericsNumerics

Status: Open.

#2592 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3940 R0 Rename concept tags for C++26: sender_t to sender_tag

LWGLibraryLibrary

Status: Open.

#2593 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3941 R3 Scheduler Affinity

LWGLibraryLibrary

Status: Open.

#2594 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3945 R0 Comments on D3933R0 (constexpr hive)

LEWGLibrary EvolutionLibrary Evolution

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

Status: Open.

#2595 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3947 R0 identifier_of Should Return std::string

C++26Targeted at C++26Targeted at C++26

reflection

Status: Open.

#2597 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3948 R0 constant_wrapper is the only tool needed for passing constant expressions

C++26Targeted at C++26Targeted at C++26

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

Status: Open.

#2598 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025

P3862 R0 Postpone basic_string::subview and wait for cstring_view

B2 - improvementBucket 2 as described by P0592: bug fixes, performance improvements, integration fixes for/between eBucket 2 as described by P0592: bug fixes, performance improvements, integration fixes for/between e

C++26Targeted at C++26Targeted at C++26

LEWGLibrary EvolutionLibrary Evolution

nb-commentThis paper is referenced in a NB commentThis paper is referenced in a NB comment

Status: Open.

#2466 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3866 R0 V2: An Evolution Path for the Standard Library

LEWGLibrary EvolutionLibrary Evolution

policy

Status: Open.

#2470 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3867 R0 define_static_string as a STATICALLY_WIDEN replacement

B3 - additionBucket 3 as described by P0592: material that is not mentioned in P0592Bucket 3 as described by P0592: material that is not mentioned in P0592

C++29Targeted at C++29Targeted at C++29

ISShip vehicle: ISShip vehicle: IS

reflection

SG16Text processingText processing

Status: Open.

#2471 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3872 R0 2025-10 Library Evolution Polls

LEWGLibrary EvolutionLibrary Evolution

Status: Open.

#2474 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3874 R1 Should C++ be a memory-safe language?

C++29Targeted at C++29Targeted at C++29

EWGEvolutionEvolution

policy

Status: Open.

#2475 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3875 R0 Defining -ffast-math is hard!

needs-revisionPaper needs changes before it can proceedPaper needs changes before it can proceed

SG6NumericsNumerics

Status: Open.

#2476 In cplusplus/papers;

· wg21bot opened on Oct 7, 2025

P3744 R0 Explicit Provenance APIs

SG1ConcurrencyConcurrency

Status: Open.

#2544 In cplusplus/papers;

· wg21bot opened on Dec 15, 2025