Hagenberg 2025

February 2025 plenary · adopted into C++26
25papers adopted
18features touched
← Wrocław 2024Sofia 2025 →

std::simd

5 papers
P2663R7Interleaved complex values support in std::simdC++26P2933R4Extend header function with overloads for std::simdC++26P3287R3Exploration of namespaces for std::simdC++26P3430R3SIMD issues: explicit, unsequenced, identity-element position, and members of disabled SIMDC++26P3441R2Rename simd_split to simd_chunkC++26

Core & Library issue resolutions

2 papers
P3615R0C++ Standard Library Ready Issues to be moved in Hagenberg, Feb. 2025C++26P3638R0Core Language Working Group "ready" Issues for the February, 2025 meetingC++26

Library constexpr-ification (C++26)

2 papers
P3372R3constexpr containers and adaptorsC++26P3378R2constexpr exception typesC++26

Ranges (C++26)

2 papers
P2846R6reserve_hint: Eagerly reserving memory for not-quite-sized lazy rangesC++26P3137R3views::to_inputC++26

#embed & preprocessor (C++26/29)

1 paper
P1967R14#embed - a simple, scannable preprocessor-based resource acquisition methodC++26

Atomics & memory model

1 paper
P3475R2Defang and deprecate memory_order::consumeC++26

Contracts

1 paper
P2900R14Contracts for C++C++26

Core wording overhauls

1 paper
P3542R0Abolish the term "converting constructor"C++26

Erroneous behaviour & observable checkpoints

1 paper
P1494R5Partial program correctnessC++26

Freestanding library

1 paper
P2976R1Freestanding Library: algorithm, numeric, and randomC++26

indirect & polymorphic

1 paper
P3019R14indirect and polymorphic: Vocabulary Types for Composite Class DesignC++26

Iterators & algorithms (misc)

1 paper
P3349R1Converting contiguous iterators to pointersC++26

Object lifetime & unions

1 paper
P3074R7trivial unions (was std::uninitialized)C++26

Standard library hardening

1 paper
P3471R4Standard Library HardeningC++26

std::hive

1 paper
P0447R28Introduction of std::hive to the standard libraryC++26

Templates & concepts (core)

1 paper
P2841R7Concept and variable-template template-parametersC++26

Trivial relocatability

1 paper
P2786R13Trivial Relocatability For C++26C++26

tuple, pair & variant

1 paper
P0472R3Put std::monostate in C++26