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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-02 UTC."],[[["This page details common components shared across Google Cloud C++ Client Libraries, including credentials for authentication, options for client configuration, and status codes for operations."],["The documentation covers a range of versions, from the latest release candidate 2.37.0-rc down to version 2.10.1, each linked for specific reference."],["The `Status` and `StatusOr` classes are used for error reporting, while `future` and `promise` objects facilitate asynchronous operations with support for callbacks and cancellation."],["Certain namespaces, such as those containing `internal` or `testing`, are reserved for implementation details and should not be used directly to prevent compatibility issues."],["The document also contains more information for users on error handling, client library configuration, and authentication components."]]],[]]
