Stay organized with collections Save and categorize content based on your preferences.
Implement ISO/IEC TS 19571:2016 promise<T>.
Creates a promise with an unsatisfied shared state.
promise(std::function< void()>)Creates a promise with an unsatisfied shared state.
Parameter Name Descriptioncancellation_callback std::function< void()>
Creates a promise without a shared state.
Parameter Name Descriptionx null_promise_t
Constructs a new promise and transfer any shared state from rhs.
promise &&
promise const &
Abandons the shared state in *this, if any, and transfers the shared state from rhs.
rhs promise &&
promise & operator=(promise const &) Parameter Name Description promise const &
promise & Functions swap(promise &)
Swaps the shared state in *this with rhs.
other promise &
void get_future()
Creates the future<T> using the same shared state as *this.
future< T > set_value(T)
Satisfies the shared state.
Parameter Name Descriptionvalue T
std::future_error with std::future_errc::promise_already_satisfied if the shared state is already satisfied. std::future_error with std::no_state if the promise does not have a shared state. Returns Type Description void
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["The webpage details various versions of the `promise` class, with the latest being version 2.37.0-rc, which you can access via a link provided."],["The `promise` class, based on ISO/IEC TS 19571:2016, allows for the creation of a promise with or without a shared state and offers multiple constructors for different initialization methods."],["The `promise` class offers several functions including `swap`, `get_future`, and `set_value`, each serving to modify the state of a promise and/or access an associated future."],["The `set_value` function is used to satisfy the shared state, but may result in exceptions if the shared state is already satisfied or if the promise doesn't have a shared state."],["The `promise` class also overloads the assignment operator to allow for the transfer of a shared state, which can abandon the current shared state, if there is any."]]],[]]
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4