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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis document details common components shared across Google Cloud C++ Client Libraries, including credentials, options, status, futures, and promises.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available is 2.37.0-rc, with multiple previous versions also listed, ranging down to version 2.10.1.\u003c/p\u003e\n"],["\u003cp\u003eKey features covered include error handling, client library configuration, authentication, and logging, as well as providing links to more detailed explanations of each.\u003c/p\u003e\n"],["\u003cp\u003eCertain namespaces, those including \u003ccode\u003einternal\u003c/code\u003e or \u003ccode\u003etesting\u003c/code\u003e in the name, are reserved for internal use and are subject to change without notice, so they should be avoided in external applications.\u003c/p\u003e\n"]]],[],null,[]]
