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Class promise<T> (2.21.0)
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Version 2.21.0 keyboard_arrow_down
Implement ISO/IEC TS 19571:2016 promise<T>.
Constructors
promise()
Creates a promise with an unsatisfied shared state.
promise(std::function< void()>)
Creates a promise with an unsatisfied shared state.
Parameter Name Description cancellation_callback
std::function< void()>
promise(null_promise_t)
Creates a promise without a shared state.
Parameter Name Description x
null_promise_t
promise(promise &&)
Constructs a new promise and transfer any shared state from rhs.
Parameter Name Description
promise &&
promise(promise const &)
Parameter Name Description
promise const &
Operators
operator=(promise &&)
Abandons the shared state in *this, if any, and transfers the shared state from rhs.
Parameter Name Description rhs
promise &&
Returns Type Description promise &
operator=(promise const &)
Parameter Name Description
promise const &
Returns Type Description promise &
Functions
swap(promise &)
Swaps the shared state in *this with rhs.
Parameter Name Description other
promise &
Returns Type Description void
get_future()
Creates the future<T> using the same shared state as *this.
Returns Type Description future< T >
set_value(T)
Satisfies the shared state.
Parameter Name Description value
T
Exceptions Type Description std::future_errorwith std::future_errc::promise_already_satisfied if the shared state is already satisfied.
std::future_errorwith std::no_state if the promise does not have a shared state.
Returns Type Description void
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Last updated 2024-11-19 UTC.
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