std::packaged_task<R(Args...)>::~packaged_task

 

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原子型別 atomic (C++11) atomic_ref (C++20) atomic_flag (C++11) 原子型別的初始化 atomic_init (C++11)(C++20 中已棄用) ATOMIC_VAR_INIT (C++11)(C++20 中已棄用) ATOMIC_FLAG_INIT (C++11) 記憶體排序 memory_order (C++11) kill_dependency (C++11)(C++26 中已棄用) atomic_thread_fence (C++11) atomic_signal_fence (C++11) 原子操作的自由函式 atomic_storeatomic_store_explicit (C++11)(C++11) atomic_loadatomic_load_explicit (C++11)(C++11) atomic_exchangeatomic_exchange_explicit (C++11)(C++11) atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit (C++11)(C++11)(C++11)(C++11) atomic_fetch_addatomic_fetch_add_explicit (C++11)(C++11) atomic_fetch_subatomic_fetch_sub_explicit (C++11)(C++11) atomic_fetch_andatomic_fetch_and_explicit (C++11)(C++11) atomic_fetch_oratomic_fetch_or_explicit (C++11)(C++11) atomic_fetch_xoratomic_fetch_xor_explicit (C++11)(C++11) atomic_fetch_maxatomic_fetch_max_explicit (C++26)(C++26) atomic_fetch_minatomic_fetch_min_explicit (C++26)(C++26) atomic_is_lock_free (C++11) atomic_waitatomic_wait_explicit (C++20)(C++20) atomic_notify_one (C++20) atomic_notify_all (C++20) 原子標誌的自由函式 atomic_flag_test_and_setatomic_flag_test_and_set_explicit (C++11)(C++11) atomic_flag_clearatomic_flag_clear_explicit (C++11)(C++11) atomic_flag_testatomic_flag_test_explicit (C++20)(C++20) atomic_flag_waitatomic_flag_wait_explicit (C++20)(C++20) atomic_flag_notify_one (C++20) atomic_flag_notify_all (C++20)

 

std::packaged_task

成員函式

packaged_task::packaged_task

packaged_task::~packaged_task

packaged_task::operator=

packaged_task::valid

packaged_task::swap

Getting the result

packaged_task::get_future

執行

packaged_task::operator()

packaged_task::make_ready_at_thread_exit

packaged_task::reset

非成員函式

swap(std::packaged_task)

輔助類

uses_allocator<std::packaged_task> (C++17 前)

推導指南(C++17)

 

~packaged_task();

放棄共享狀態並銷燬儲存的任務物件。

與 std::promise::~promise 一樣，如果共享狀態在準備好之前被放棄，則會儲存一個 std::future_error 異常，其錯誤碼為 std::future_errc::broken_promise。

引數

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