std::promise<R>::operator=
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C++
Concurrency support library
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std::promise
Member functions | ||||
promise::operator= | ||||
Getting the result | ||||
Setting the result | ||||
Non-member Functions | ||||
Helper Classes | ||||
promise& operator=( promise&& other ) noexcept; |
(1) | (since C++11) |
promise& operator=( const promise& rhs ) = delete; |
(2) | (since C++11) |
Assigns the contents.
1) Move assignment operator. First, abandons the shared state (as in ~promise()), then assigns the shared state of
other
as if by executing std::promise(std::move(other)).swap(*this).2)
promise
is not copy-assignable.Parameters
other | - | another promise to acquire the state from
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Return value
*this