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C++ Standards

Every C++ standard, version-indexed. Select your target standard to see what features are available — pages adapt to show only what you can use.

2026In progress

Reflection, contracts, pattern matching, Senders/Receivers

Static reflection (P2996)Contracts [[pre:]] / [[post:]]std::execution (Senders/Receivers, P2300)std::simd — portable SIMD (P1928)Pattern matching — partial (P2688)Hardening — bounds-safety profilesstd::hazard_pointerPack indexing

std::print, std::expected, deducing this, import std

std::print / std::printlnstd::expected<T,E>Deducing this (explicit object param)import std; (module for stdlib)std::flat_map / flat_setstd::generator (coroutine)Ranges: zip, chunk, slide, adjacentFormatting: std::format improvements

Concepts, Ranges, Coroutines, Modules, std::format

Concepts & requires expressionsRanges & range viewsCoroutines (co_await / co_yield)Modules (module / import)std::formatThree-way comparison <=>std::spanCalendar & time zones (std::chrono)

Structured bindings, if constexpr, std::variant, PMR

Structured bindingsif constexprstd::variant / std::optional / std::anyParallel algorithms (execution policies)Class template argument deduction (CTAD)Inline variablesstd::string_viewPolymorphic Memory Resources (PMR)

Generic lambdas, std::make_unique, relaxed constexpr

Generic lambdas (auto parameters)std::make_uniqueRelaxed constexpr functionsVariable templatesReturn type deduction for functionsBinary literals (0b...) & digit separatorsstd::exchange

The modern C++ revolution: move, lambdas, threads

Move semantics & rvalue referencesLambda expressionsstd::thread / std::mutex / std::atomicauto type deductionRange-based for loopSmart pointers (unique_ptr, shared_ptr)Variadic templatesconstexpr

Bug-fix release for C++98

Value initializationVarious defect reports resolved

The original ISO C++ standard

STL (containers, algorithms, iterators)RTTI & dynamic_castException handlingTemplatesNamespaces