64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*!
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\file gk_getopt.h
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\brief This file contains GNU's externs/structs/prototypes
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\date Started 3/27/2007
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\author George
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\version\verbatim $Id: gk_getopt.h 10711 2011-08-31 22:23:04Z karypis $ \endverbatim
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*/
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#ifndef _GK_GETOPT_H_
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#define _GK_GETOPT_H_
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/* Externals from getopt.c */
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//extern char *gk_optarg;
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//extern int gk_optind;
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//extern int gk_opterr;
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//extern int gk_optopt;
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/*! \brief The structure that stores the information about the command-line options
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This structure describes a single long option name for the sake of
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gk_getopt_long(). The argument <tt>long_options</tt> must be an array
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of these structures, one for each long option. Terminate the array with
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an element containing all zeros.
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*/
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struct gk_option {
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char *name; /*!< This field is the name of the option. */
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int has_arg; /*!< This field says whether the option takes an argument.
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It is an integer, and there are three legitimate values:
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no_argument, required_argument and optional_argument.
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*/
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int *flag; /*!< See the discussion on ::gk_option#val */
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int val; /*!< These fields control how to report or act on the option
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when it occurs.
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If flag is a null pointer, then the val is a value which
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identifies this option. Often these values are chosen
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to uniquely identify particular long options.
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If flag is not a null pointer, it should be the address
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of an int variable which is the flag for this option.
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The value in val is the value to store in the flag to
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indicate that the option was seen. */
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};
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/* Names for the values of the `has_arg' field of `struct gk_option'. */
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#define no_argument 0
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#define required_argument 1
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#define optional_argument 2
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/* Function prototypes */
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//extern int gk_getopt(int __argc, char **__argv, char *__shortopts);
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//extern int gk_getopt_long(int __argc, char **__argv, char *__shortopts,
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// struct gk_option *__longopts, int *__longind);
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//extern int gk_getopt_long_only (int __argc, char **__argv,
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// char *__shortopts, struct gk_option *__longopts, int *__longind);
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#endif
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