usual/getopt.h File Reference

getopt compat. More...

Data Structures
struct	option
	Long option description. More...
Defines
#define	no_argument
	long option takes no argument
#define	required_argument
	long option requires argument
#define	optional_argument
	long option has optional argument
Functions
int	getopt (int argc, char *argv[], const char *options)
	Compat: getopt.
int	getopt_long (int argc, char *argv[], const char *options, const struct option *longopts, int *longindex)
	Compat: getopt_long.
int	getopt_long_only (int nargc, char *argv[], const char *options, const struct option *long_options, int *idx)
	Compat: getopt_long_only.
Variables
char *	optarg
	argument to current option, or NULL if it has none
int	optind
	Current position in arg string.
int	opterr
	whether getopt() should print error messages on problems.
int	optopt
	Option char which caused error.

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Detailed Description

getopt compat.

This module provides getopt() and getopt_long().

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Define Documentation

#define no_argument

long option takes no argument

#define required_argument

long option requires argument

#define optional_argument

long option has optional argument

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Function Documentation

int getopt	(	int	argc,
		char *	argv[],
		const char *	options
	)

Compat: getopt.

int getopt_long	(	int	argc,
		char *	argv[],
		const char *	options,
		const struct option *	longopts,
		int *	longindex
	)

Compat: getopt_long.

int getopt_long_only	(	int	nargc,
		char *	argv[],
		const char *	options,
		const struct option *	long_options,
		int *	idx
	)

Compat: getopt_long_only.

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Variable Documentation

char* optarg

argument to current option, or NULL if it has none

int optind

Current position in arg string.

Starts from 1. Setting to 0 resets state.

int opterr

whether getopt() should print error messages on problems.

Default: 1.

int optopt

Option char which caused error.