std::packaged_task

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Defined in header <future>

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template< class > class packaged_task; //not defined

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template< class Function, class Args... >
class packaged_task<Function(Args...)>;

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The class template std::packaged_task packages a function to store its return value that is later acquired asynchronously via a Template:cpp object, that the std::packaged_task can supply.

Member functions

(constructor)	constructs the task object (public member function)
(destructor)	destructs the task object (public member function)
operator=	moves the task object (public member function)
valid	checks if the task object has a valid function (public member function)
swap	swaps two task objects (public member function)
Getting the result
get_future	returns a future associated with the promised result (public member function)
Execution
operator()	executes the function (public member function)
make_ready_at_thread_exit	executes the function ensuring that the result is ready only once the current thread exits (public member function)
reset	resets the state abandoning any stored results of previous executions (public member function)

Helper classes

Template:cpp/thread/packaged task/dcl list uses allocator