std::swap(std::promise)

 

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std::promise

成員函式

promise::promise

promise::~promise

promise::operator=

promise::swap

Getting the result

promise::get_future

Setting the result

promise::set_value

promise::set_value_at_thread_exit

promise::set_exception

promise::set_exception_at_thread_exit

非成員函式

swap(std::promise)

輔助類

uses_allocator<std::promise>

 

在標頭檔案 <future> 中定義
template< class R > void swap( promise<R>& lhs, promise<R>& rhs ) noexcept;		(C++11 起)

特化 std::swap 演算法以用於 std::promise。交換 lhs 與 rhs 的共享狀態。等效地呼叫 lhs.swap(rhs)。

引數

lhs, rhs

-

要交換狀態的 promise 物件

返回值

(無)

參閱

swap	交換兩個 promise 物件 (public member function)