optarg
- Version 3.5 and earlier : optarg variable not available.
- Version 4.0 and later: optarg variable available.
Data Type
Integer, read-only
Description
Used with getopt functions. Contains the parameter for the last argument or an empty string if none was found.
Valid Values
A positive integer.
if (option == "f") filename = optarg;
For more information, see the following: