StatusOr returns a value on success and a Status on error.
future and promise futures (a holder that will receive a value asynchronously) and promises (the counterpart of a future, where values are stored asynchronously). They satisfy the API for std::future and std::promise, and add support for callbacks and cancellation.
More information
Error Handling for more details about how the libraries report run-time errors and how you can handle them.
[[["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 2025-03-05 UTC."],[[["This page details common components shared across Google Cloud C++ Client Libraries, including credentials, options, status, StatusOr, future, and promise."],["The latest release candidate version available is 2.37.0-rc, and the page lists versions from 2.10.1 up to 2.36.0 for reference."],["It is strongly recommended not to use any symbols from namespaces containing \"internal\" or \"testing,\" such as `google::cloud::internal` and `google::cloud::testing_util`, as they are subject to change without notice."],["The page provides additional information on error handling, client library configuration, authentication, and logging within the context of these C++ libraries."]]],[]]