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P3211 R1 views::flat_map

rangesstd::rangesstd::ranges

SG9Ranges SGRanges SG

Status: Open.

#1862 In cplusplus/papers;

· wg21bot opened on Apr 17, 2024

P2728 R8 Unicode in the Library, Part 1: UTF Transcoding

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

SG16Text processingText processing

SG9Ranges SGRanges SG

size - largepaper size estimatepaper size estimate

unicode

Status: Open.

#1422 In cplusplus/papers;

· wg21bot opened on Jan 16, 2023

P3578 R1 What is "Safety"?

contractsContractsContracts

EWGEvolutionEvolution

infoInformational paperInformational paper

SG23Safety and SecuritySafety and Security

Status: Open.

#2220 In cplusplus/papers;

· wg21bot opened on Jan 14, 2025

P3754 R1 Slides for P3100R2 presentation to EWG

EWGEvolutionEvolution

infoInformational paperInformational paper

Status: Open.

#2379 In cplusplus/papers;

· wg21bot opened on Jul 24, 2025

P3603 R1 Consteval-only Values and Consteval Variables

EWGEvolutionEvolution

reflection

Status: Open.

#2253 In cplusplus/papers;

· wg21bot opened on Mar 19, 2025

P3747 R0 Call side return type deduction

Status: Open.

#2345 In cplusplus/papers;

· erichkeane opened on Jun 18, 2025

P3525 R0 Explicit Implicit Template Regions

EWGIEvolution IncubatorEvolution Incubator

Status: Open.

#2171 In cplusplus/papers;

· wg21bot opened on Dec 18, 2024

P2034 R5 Partially Mutable Lambda Captures

EWGEvolutionEvolution

Status: Open.

#764 In cplusplus/papers;

· wg21bot opened on Jan 18, 2020

P3100 R4 Implicit contract assertions

contractsContractsContracts

EWGEvolutionEvolution

SG23Safety and SecuritySafety and Security

whitepaperTargets a whitepaperTargets a whitepaper

Status: Open.

#1901 In cplusplus/papers;

· wg21bot opened on May 22, 2024

P3164 R4 Early Diagnostics for Sender Expressions

B1 - focusBucket 1 as described by P0592: material that is mentioned in this plan.Bucket 1 as described by P0592: material that is mentioned in this plan.

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

ISShip vehicle: ISShip vehicle: IS

LWGLibraryLibrary

lwg-pendingLWG Chair needs to dispositionLWG Chair needs to disposition

senders/receivers

size - mediumpaper size estimatepaper size estimate

Status: Open.

#1827 In cplusplus/papers;

· wg21bot opened on Apr 17, 2024

P1789 R1 Library Support for Expansion Statements

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

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

ISShip vehicle: ISShip vehicle: IS

LEWGLibrary EvolutionLibrary Evolution

LWGLibraryLibrary

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

size - smallpaper size estimatepaper size estimate

Status: Open.

#535 In cplusplus/papers;

· wg21bot opened on Jun 23, 2019

P3589 R2 C++ Profiles: The Framework

EWGEvolutionEvolution

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

whitepaperTargets a whitepaperTargets a whitepaper

Status: Open.

#2232 In cplusplus/papers;

· wg21bot opened on Jan 14, 2025

P3185 R0 A proposed direction for C++ Standard Networking based on IETF TAPS

SG4 Networking

Status: Open.

#2145 In cplusplus/papers;

· wg21bot opened on Dec 18, 2024

P3424 R0 Define Delete With Throwing Exception Specification

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

CWGCoreCore

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

Status: Open.

#2148 In cplusplus/papers;

· wg21bot opened on Dec 18, 2024

P0178 R1 Allocators and swap

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

ISShip vehicle: ISShip vehicle: IS

LEWGLibrary EvolutionLibrary Evolution

LWGLibraryLibrary

ready-for-library-evolution-meeting-reviewThis paper needs to be discussed at a Library Evolution meetingThis paper needs to be discussed at a Library Evolution meeting

Status: Open.

#2149 In cplusplus/papers;

· wg21bot opened on Dec 18, 2024

P3482 R1 Design for C++ networking based on IETF TAPS

SG4 Networking

Status: Open.

#2151 In cplusplus/papers;

· wg21bot opened on Dec 18, 2024

P3310 R6 Solving issues introduced by relaxed template template parameter matching

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

CWGCoreCore

DRDefect ReportDefect Report

Status: Open.

#1961 In cplusplus/papers;

· wg21bot opened on May 22, 2024

P3439 R3 Chained comparisons: Safe, correct, efficient

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

CWGCoreCore

Status: Open.

#2103 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3440 R1 Add n_elements named constructor to std::simd

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

ISShip vehicle: ISShip vehicle: IS

LEWGLibrary EvolutionLibrary Evolution

simd

size - smallpaper size estimatepaper size estimate

Status: Open.

#2104 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3442 R2 [[invalidate_dereferencing]] attribute

EWGEvolutionEvolution

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

SG14Low LatencyLow Latency

Status: Open.

#2106 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3444 R0 Memory safety without lifetime parameters

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

SG23Safety and SecuritySafety and Security

Status: Open.

#2108 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3445 R0 Add utilities for easier type/bit casting in std::simd

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

LEWGLibrary EvolutionLibrary Evolution

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

simd

size - smallpaper size estimatepaper size estimate

Status: Open.

#2109 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3446 R0 Profile invalidation - eliminating dangling pointers

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

SG23Safety and SecuritySafety and Security

Status: Open.

#2110 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3449 R1 constexpr std::generator

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

constexpr

ISShip vehicle: ISShip vehicle: IS

LWGLibraryLibrary

lwg-pendingLWG Chair needs to dispositionLWG Chair needs to disposition

size - mediumpaper size estimatepaper size estimate

Status: Open.

#2112 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024

P3450 R0 Extending is_within_lifetime

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

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

LEWGLibrary EvolutionLibrary Evolution

LEWG-focusHigh priority topics for LEWG (broadly effect APIs)High priority topics for LEWG (broadly effect APIs)

ready-for-library-evolution-meeting-reviewThis paper needs to be discussed at a Library Evolution meetingThis paper needs to be discussed at a Library Evolution meeting

size - smallpaper size estimatepaper size estimate

Status: Open.

#2113 In cplusplus/papers;

· wg21bot opened on Oct 17, 2024