+
−/* Declarations for getopt.
+
−   Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.
+
−
+
−   NOTE: The canonical source of this file is maintained with the GNU C Library.
+
−   Bugs can be reported to bug-glibc@gnu.org.
+
−
+
−   This program is free software; you can redistribute it and/or modify it
+
−   under the terms of the GNU General Public License as published by the
+
−   Free Software Foundation; either version 2, or (at your option) any
+
−   later version.
+
−
+
−   This program is distributed in the hope that it will be useful,
+
−   but WITHOUT ANY WARRANTY; without even the implied warranty of
+
−   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+
−   GNU General Public License for more details.
+
−
+
−   You should have received a copy of the GNU General Public License
+
−   along with this program; if not, write to the Free Software
+
−   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+
−   USA.  */
+
−
+
−#ifndef _GETOPT_H
+
−#define _GETOPT_H 1
+
−
+
−#ifdef	__cplusplus
+
−extern "C" {
+
−#endif
+
−
+
−/* 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,
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−   each non-option ARGV-element is returned here.  */
+
−
+
−extern char *optarg;
+
−
+
−/* 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
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−   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.  */
+
−
+
−extern int optind;
+
−
+
−/* Callers store zero here to inhibit the error message `getopt' prints
+
−   for unrecognized options.  */
+
−
+
−extern int opterr;
+
−
+
−/* Set to an option character which was unrecognized.  */
+
−
+
−extern int optopt;
+
−
+
−/* Describe the long-named options requested by the application.
+
−   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+
−   of `struct option' terminated by an element containing a name which is
+
−   zero.
+
−
+
−   The field `has_arg' is:
+
−   no_argument		(or 0) if the option does not take an argument,
+
−   required_argument	(or 1) if the option requires an argument,
+
−   optional_argument 	(or 2) if the option takes an optional argument.
+
−
+
−   If the field `flag' is not NULL, it points to a variable that is set
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−   to the value given in the field `val' when the option is found, but
+
−   left unchanged if the option is not found.
+
−
+
−   To have a long-named option do something other than set an `int' to
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−   a compiled-in constant, such as set a value from `optarg', set the
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−   option's `flag' field to zero and its `val' field to a nonzero
+
−   value (the equivalent single-letter option character, if there is
+
−   one).  For long options that have a zero `flag' field, `getopt'
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−   returns the contents of the `val' field.  */
+
−
+
−struct option
+
−{
+
−#if defined (__STDC__) && __STDC__
+
−  const char *name;
+
−#else
+
−  char *name;
+
−#endif
+
−  /* has_arg can't be an enum because some compilers complain about
+
−     type mismatches in all the code that assumes it is an int.  */
+
−  int has_arg;
+
−  int *flag;
+
−  int val;
+
−};
+
−
+
−/* Names for the values of the `has_arg' field of `struct option'.  */
+
−
+
−#define	no_argument		0
+
−#define required_argument	1
+
−#define optional_argument	2
+
−
+
−#if defined (__STDC__) && __STDC__
+
−#ifdef __GNU_LIBRARY__
+
−/* Many other libraries have conflicting prototypes for getopt, with
+
−   differences in the consts, in stdlib.h.  To avoid compilation
+
−   errors, only prototype getopt for the GNU C library.  */
+
−extern int getopt (int argc, char *const *argv, const char *shortopts);
+
−#else /* not __GNU_LIBRARY__ */
+
−extern int getopt ();
+
−#endif /* __GNU_LIBRARY__ */
+
−extern int getopt_long (int argc, char *const *argv, const char *shortopts,
+
−		        const struct option *longopts, int *longind);
+
−extern int getopt_long_only (int argc, char *const *argv,
+
−			     const char *shortopts,
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−		             const struct option *longopts, int *longind);
+
−
+
−/* Internal only.  Users should not call this directly.  */
+
−extern int _getopt_internal (int argc, char *const *argv,
+
−			     const char *shortopts,
+
−		             const struct option *longopts, int *longind,
+
−			     int long_only);
+
−#else /* not __STDC__ */
+
−extern int getopt ();
+
−extern int getopt_long ();
+
−extern int getopt_long_only ();
+
−
+
−extern int _getopt_internal ();
+
−#endif /* __STDC__ */
+
−
+
−#ifdef	__cplusplus
+
−}
+
−#endif
+
−
+
−#endif /* getopt.h */