absl::CommandLineFlag

Synopsis

Declared in <absl/flags/commandlineflag.h>

class CommandLineFlag;

To obtain an absl::CommandLineFlag, invoke absl::FindCommandLineFlag() passing it the flag name string.

Example:

// Obtain reflection handle for a flag named "flagname". const absl::CommandLineFlag* my_flag_data = absl::FindCommandLineFlag("flagname");

// Now you can get flag info from that reflection handle. std::string flag_location = my_flag_data->Filename(); ...

Name	Description
`CommandLineFlag` [constructor]	Constructors
`operator=` [deleted]	Not assignable.
`CurrentValue` [virtual]	Returns the current value for this flag.
`DefaultValue` [virtual]	Returns the default value for this flag.
`Filename` [virtual]	Returns name of the file where this flag is defined.
`Help` [virtual]	Returns help message associated with this flag.
`IsOfType`	Returns true if the flag has type `T`.
`IsRetired` [virtual]	Returns true iff this object corresponds to retired flag.
`Name` [virtual]	Returns name of this flag.
`ParseFrom`	Sets the value of the flag based on specified string `value`. If the flag was successfully set to new value, it returns true. Otherwise, sets `error` to indicate the error, leaves the flag unchanged, and returns false.
`TryGet`	Attempts to retrieve the flag value.

Name	Description
`~CommandLineFlag` [destructor]	Destroys this handle. Protected so only derived types may be destroyed.

Name	Description
`FindCommandLineFlag`	Returns the reflection handle of an Abseil flag of the specified name, or `nullptr` if not found. This function will emit a warning if the name of a 'retired' flag is specified.
`GetFlagReflectionHandle`	Returns the reflection handle corresponding to specified Abseil Flag instance. Use this handle to access flag's reflection information, like name, location, default value etc.