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Akira Takahashi edited this page Aug 3, 2026 · 2 revisions

C++29の対応状況

参照文書

Editor's Report

言語機能の提案文書への対応

以下N5055

paper タイトル 対応状況(空 or 完了 or 対応しない or 担当名)
P4271R0 Core Language Working Group "ready" Issues for the June, 2026 meeting
P3596R3 Undefined Behavior and IFNDR Annexes
P2287R6 Designated-initializers for Base Classes
P3899R3 Clarify the behavior of floating-point overflow
P3668R4 Defaulting Postfix Increment and Decrement Operations
P2953R5 Adding restrictions to defaulted assignment operator functions
P2434R5 Nondeterministic pointer provenance
P3347R6 Invalid Pointer Operations
P3658R1 Adjust identifier following new Unicode recommendations
P3950R1 return_value & return_void Are Not Mutually Exclusive
P3733R1 More named universal character escapes
P3847R1 Lexical order for lambdas
P2243R0 Language linkage for templates
P3424R2 Deallocation Functions with Throwing Exception Specification Are Ill-formed
P3822R2 Conditional noexcept specifiers in compound requirements
P3097R3 Contracts for C++: Virtual functions
P4101R1 Consteval-only Values for C++26
P2414R12 Pointer lifetime-end zap proposed solutions
P3670R4 Pack Indexing for Template Names
P3540R3 #embed offset parameter

ライブラリ機能の提案文書への対応

以下N5055

paper タイトル 対応状況(空 or 完了 or 対応しない or 担当名)
P4258R0 C++ Standard Library Ready Issues to be moved in Brno, Jun. 2026
P3319R6 Add an iota object for SIMD (and more) 完了
P3798R1 The unexpected in std::expected
P3052R2 view_interface::at()
P4206R0 Revert string support in std::constant_wrapper
P3395R6 Fix encoding issues and add a formatter for std::error_code
P3505R4 Fix the default floating-point representation in std::format
P3154R3 Deprecating signed character types in iostreams
P3428R4 Hazard Pointer Batches
P3248R5 Require [u]intptr_t
P3793R2 Better shifting 完了
P3242R4 Copy and fill for mdspan
P3692R4 How to Avoid OOTA Without Really Trying
P3104R6 Bit permutations 完了
P3772R2 std::simd overloads for bit permutations 完了
P3091R6 Better Lookups for map, unordered_map, and flat_map
P3125R6 constexpr pointer tagging
P2019R9 Thread attributes
P3785R1 Library Wording Changes for Defaulted Postfix Increment and Decrement Operations

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