Kona 2019

February 2019 plenary · adopted into C++20
30papers adopted
19features touched
← San Diego 2018Cologne 2019 →

Library specification rewrite (Mandates/Constraints)

5 papers
P1458R1Mandating the standard library: clause 16 - language support libraryC++20P1459R1Mandating the standard library: clause 18 - diagnostics libraryC++20P1462R1Mandating the standard library: clause 20 - strings libraryC++20P1463R1Mandating the standard library: clause 21 - containers libraryC++20P1464R1Mandating the standard library: clause 22 - iterators libraryC++20

Core & Library issue resolutions

3 papers
P1358R0Core "ready" IssuesC++20P1359R0Core "tentatively ready" IssuesC++20P1457R0C++ Standard Library Issues to be moved in KonaC++20

char8_t & Unicode (C++20)

2 papers
P1041R4Make char16_t/char32_t string literals be UTF-16/32C++20P1139R2Address wording issues related to ISO 10646C++20

Ranges

2 papers
P1227R2Signed ssize() functions, unsigned size() functionsC++20P1252R2Ranges design cleanupC++20

Small language features (C++20)

2 papers
P1009R2Array size deduction in new-expressionsC++20P1286R2Contra CWG DR1778C++20

Structured bindings (C++20)

2 papers
P1091R3Extending structured bindings to be more like variable declarationsC++20P1381R1Reference capture of structured bindingsC++20

Utilities & type traits (C++20)

2 papers
P0340R3Making std::underlying_type SFINAE-friendlyC++20P1357R1Traits for [un]bounded arraysC++20

Bit manipulation & numeric utilities

1 paper
P0811R3Well-behaved interpolation for numbers and pointersC++20

Containers & algorithms (C++20)

1 paper
P0920R2Precalculated hash values in lookupC++20

Contracts (C++20, removed)

1 paper
P1323R2Contract postconditions and return type deductionC++20

Coroutines

1 paper
P0912R5CoroutinesC++20

Designated initializers & aggregates

1 paper
P0960R3Allow initializing aggregates from a parenthesized list of valuesC++20

Filesystem library

1 paper
P1164R1Make create_directory() intuitiveC++20

Language support utilities (C++20)

1 paper
P0339R6polymorphic_allocator<> as a vocabulary typeC++20

Modules

1 paper
P1103R3ModulesC++20

Parallel algorithms

1 paper
P1001R2Target vectorization policies from Parallelism V2 TSC++20

std::span

1 paper
P1024R3Usability enhancements for std::spanC++20

Strings & I/O (C++20)

1 paper
P0738R2I Stream, You Stream, We All Stream for istream_iteratorC++20

Three-way comparison (<=>)

1 paper
P1185R2<=> != ==C++20