C++17

Urbana 2014 – Kona 2017 · N4659 (DIS) · ISO/IEC 14882:2017
179papers adopted
26features touched
8plenaries
← C++14C++20 →Show only C++17 on the map

Language

14 features
Small language features (C++17)17 papersDeprecations & removals (C++17)8 papersAttributes (C++17)also C++206 papersForward progress & memory model (C++17)6 papersnoexcept in the type system5 papersClass template argument deduction4 papersGuaranteed copy elision & evaluation order4 papersStructured bindings (C++17)3 papersauto non-type template parameters2 papersconstexpr lambdas & *this capture2 papersFold expressions2 papersif constexpr & selection statements with initializer2 papersinline variables2 papersAligned dynamic allocation1 paper

Library

10 features · 2 housekeeping
Utilities (C++17)25 papersContainers & iterators (C++17)16 papersLibrary Fundamentals TS merge (optional, any, string_view, searchers…)11 papersType traits & metaprogramming (C++17)11 papersParallel algorithmsalso C++2010 papersFilesystem libraryalso C++206 papersstd::variant4 papersElementary string conversions (<charconv>)also C++201 paperMathematical special functions1 paperShared locking (shared_timed_mutex, shared_mutex)also C++141 paperCore & Library issue resolutionsalso 6 others25 papersNB-comment omnibus & housekeepingalso 5 others4 papers

Papers per plenary

Oulu 2016 was the busiest plenary: 47 papers adopted into C++17.

UrbanaNov 201424InterimApr 20151LenexaMay 20157KonaOct 201515JacksonvilleMar 201628OuluJun 201647IssaquahNov 201627KonaMar 201730

Idioms in C++17

what changed in practice · from the Atlas
Parameter passingCore semanticsOwnership & lifetimesCore semanticsValue vs. reference semanticsCore semanticsMove semanticsCore semanticsInitializationCore semanticsConst & constexpr correctnessCore semanticsClass designDesignError handlingDesignPolymorphism choiceDesignAPI boundaries & vocabulary typesDesignCustomization pointsGeneric & compile-timeConstraint styleGeneric & compile-timeNamed idiomsGeneric & compile-timeAlgorithms & ranges over raw loopsCode-levelCasting disciplineCode-levelConcurrency idiomsCode-levelPhysical designCode-levelCoroutine machineryCompile-time & language mechanicsAsync compositionCompile-time & language mechanicsUB & object lifetimeCompile-time & language mechanicsDeclaration styleCompile-time & language mechanicsLambda idiomsCompile-time & language mechanicsName lookup hygieneCompile-time & language mechanicsAllocator awarenessMemory & performancePerformance idiomsMemory & performanceCode-size controlMemory & performanceGlobal state & init orderMemory & performanceString handlingText, numbers, timeInteger hygieneText, numbers, timechrono disciplineText, numbers, timeComparators & hashingText, numbers, timeC interop & ABIBoundaries & practiceFreestanding & embedded subsetBoundaries & practiceFeature detection & migrationBoundaries & practiceTooling-encoded idiomBoundaries & practice