std::experimental::packaged_task (library fundamentals TS)
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< cpp | experimental | lib extensions
This page is about the modified version of std::packaged_task with type-erased allocator support provided by the Library Fundamentals TSes. For the version of packaged_task
provided by the concurrency TS supporting the std::future
improvements made by that TS, see std::experimental::concurrency_v1::packaged_task.
Defined in header
<experimental/future>
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template< class > class packaged_task; //not defined
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(1) | (library fundamentals TS) |
template< class R, class ...Args >
class packaged_task<R(Args...)>; |
(2) | (library fundamentals TS) |
std::experimental::fundamentals_v1::packaged_task
(and std::experimental::fundamentals_v2::packaged_task
) is a modified version of std::packaged_task provided by the library fundamentals TS with support for type-erased allocators.
Contents |
[edit] Member types
Member type | Definition |
allocator_type
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std::experimental::erased_type |
[edit] Member functions
constructs the task object (public member function) |
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retrieves a pointer to the memory resource used by this object to allocate memory (public member function) |
[edit] Non-member function
specializes the swap algorithm (function template) |
[edit] Helper classes
specializes the std::uses_allocator type trait (class template specialization) |
Members identical to std::packaged_task
Member functions
destructs the task object (public member function of std::packaged_task )
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moves the task object (public member function of std::packaged_task )
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checks if the task object has a valid function (public member function of std::packaged_task )
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swaps two task objects (public member function of std::packaged_task )
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Getting the result |
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returns a std::future associated with the promised result (public member function of std::packaged_task )
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Execution |
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executes the function (public member function of std::packaged_task )
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executes the function ensuring that the result is ready only once the current thread exits (public member function of std::packaged_task )
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resets the state abandoning any stored results of previous executions (public member function of std::packaged_task )
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