Represents success or an error with info about the error.
This class is typically used to indicate whether or not a function or other operation completed successfully. Success is indicated by an "OK" status. OK statuses will have .code()==StatusCode::kOk and .ok()== true, with all other properties having empty values. All OK statuses are equal. Any non-OK Status is considered an error. Users can inspect the error using the member functions, or they can simply stream the Status object, and it will print itself in some human readable way (the streamed format may change over time and you should not depend on the specific format of a streamed Status object remaining unchanged).
This is a regular value type that can be copied, moved, compared for equality, and streamed.
Constructors
Status(Status const &)
Copy construction and assignment.
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| Name | Description |
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Status const &
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Status(Status &&)
Move construction and assignment.
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| Name | Description |
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Status &&
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Status()
Default constructor, initializes to StatusCode::kOk.
Status(StatusCode, std::string, ErrorInfo)
Construct from a status code, message and (optional) error info.
| Parameters | |
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| Name | Description |
code |
StatusCode
the status code for the new |
message |
std::string
the message for the new |
info |
ErrorInfo
the |
Operators
operator=(Status const &)
Copy construction and assignment.
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| Name | Description |
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Status const &
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| Type | Description |
Status & | |
operator=(Status &&)
Move construction and assignment.
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| Name | Description |
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Status &&
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| Type | Description |
Status & | |
Functions
ok() const
Returns true if the status code is StatusCode::kOk.
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| Type | Description |
bool | |
code() const
Returns the status code.
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| Type | Description |
StatusCode | |
message() const
Returns the message associated with the status.
This is always empty if code() is StatusCode::kOk.
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| Type | Description |
std::string const & | |
error_info() const
Returns the additional error info associated with the status.
This is always a default-constructed error info if code() is StatusCode::kOk.
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| Type | Description |
ErrorInfo const & | |