csutil/getopt.h File Reference
Declarations for getopt. More...
#include "csextern.h"
Go to the source code of this file.
Classes | |
| struct | getopt_option |
| Describe the long-named options requested by the application. More... | |
Defines | |
| #define | __STDC__ 1 |
| #define | no_argument 0 |
| #define | option getopt_option |
| Quirk: so that using the word 'option' in any doxygen comments doesn't create a link to getopt.h. | |
| #define | optional_argument 2 |
| #define | required_argument 1 |
Variables | |
| char * | optarg |
| For communication from `getopt' to the caller. | |
| int | opterr |
| Callers store zero here to inhibit the error message `getopt' prints for unrecognized options. | |
| int | optind |
| Index in ARGV of the next element to be scanned. | |
| int | optopt |
| Set to an option character which was unrecognized. | |
Detailed Description
Declarations for getopt.
Definition in file getopt.h.
Define Documentation
| #define option getopt_option |
Variable Documentation
| char* optarg |
For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument, the argument value is returned here. Also, when `ordering' is RETURN_IN_ORDER, each non-option ARGV-element is returned here.
| int opterr |
Callers store zero here to inhibit the error message `getopt' prints for unrecognized options.
| int optind |
Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller and for communication between successive calls to `getopt'.
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns -1, this is the index of the first of the non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next how much of ARGV has been scanned so far.
| int optopt |
Set to an option character which was unrecognized.
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