std::experimental::packaged_task (concurrency TS)

 

C++

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Named requirements

Feature test macros (C++20)

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Concepts library (C++20)

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Symbols index

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Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals TS v2)

Library fundamentals 3 (library fundamentals TS v3)

Extensions for parallelism (parallelism TS)

Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

Extensions for concurrency 2 (concurrency TS v2)

Concepts (concepts TS)

Ranges (ranges TS)

Reflection (reflection TS)

Mathematical special functions (special functions TR)

 

Extensions for concurrency

std::future extensions

experimental::future

experimental::shared_future

experimental::when_all

experimental::when_any

experimental::make_ready_future

experimental::make_exceptional_future

Latches and barriers

experimental::latch

experimental::barrier

experimental::flex_barrier

Atomic smart pointers

experimental::atomic_shared_ptr

experimental::atomic_weak_ptr

 

This page is about the modified version of std::packaged_task provided by the concurrency TS supporting the std::future improvements made by that TS. For the version of packaged_task with type-erased allocator support provided by the Library Fundamentals TSes, see std::experimental::fundamentals_v2::packaged_task.

Defined in header <experimental/future>
template< class > class packaged_task; //not defined	(1)	(concurrency TS)
template< class R, class ...Args > class packaged_task<R(Args...)>;	(2)	(concurrency TS)

std::experimental::concurrency_v1::packaged_task is a modified version of std::packaged_task provided by the concurrency TS that works with std::experimental::future.

The only change from std::packaged_task is that the get_future() member function returns a std::experimental::future<R>.