GetoptStdc extension

<getopt.h> standard and GNU extensions for stdc.

on

Properties

optarg ↔ String?: Available on Stdc, provided by the GetoptStdc extension
For communication from getopt to the caller. When getopt finds an option that takes an argument, the argument value is stored here.
getter/setter pair
opterr ↔ int: Available on Stdc, provided by the GetoptStdc extension
If opterr is set to 0, getopt does not print an error message.
getter/setter pair
optind ↔ int: Available on Stdc, provided by the GetoptStdc extension
Index of the next element to be processed in argv. The system initializes this value to 1.
getter/setter pair
optopt ↔ int: Available on Stdc, provided by the GetoptStdc extension
When getopt encounters an unknown option character or an option with a missing required argument, it stores that option character in this variable.
getter/setter pair

getopt(int argc, List<String> argv, String optstring) → int: Available on Stdc, provided by the GetoptStdc extension
Parses command-line arguments.
getopt_long(int argc, List<String> argv, String optstring, List<Option> longopts, [List<int>? longindex]) → int: Available on Stdc, provided by the GetoptStdc extension
Parses long options in addition to short options.
optreset() → void: Available on Stdc, provided by the GetoptStdc extension
Resets the internal getopt state.