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/* Declarations for getopt.
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Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
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This file is part of the GNU C Library. Its master source is NOT part of
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the C library, however. The master source lives in /gd/gnu/lib.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998,
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1999, 2001, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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/* If __GNU_LIBRARY__ is not already defined, either we are being used
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standalone, or this is the first header included in the source file.
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If we are being used with glibc, we need to include <features.h>, but
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that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
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not defined, include <ctype.h>, which will pull in <features.h> for us
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if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
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doesn't flood the namespace with stuff the way some other headers do.) */
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#if !defined __GNU_LIBRARY__
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/* Names for the values of the `has_arg' field of `struct option'. */
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#define required_argument 1
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#define optional_argument 2
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#if defined (__STDC__) && __STDC__
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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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#endif /* need getopt */
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/* Get definitions and prototypes for functions to process the
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arguments in ARGV (ARGC of them, minus the program name) for
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options given in OPTS.
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Return the option character from OPTS just read. Return -1 when
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there are no more options. For unrecognized options, or options
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missing arguments, `optopt' is set to the option letter, and '?' is
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The OPTS string is a list of characters which are recognized option
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letters, optionally followed by colons, specifying that that letter
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takes an argument, to be placed in `optarg'.
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If a letter in OPTS is followed by two colons, its argument is
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optional. This behavior is specific to the GNU `getopt'.
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The argument `--' causes premature termination of argument
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scanning, explicitly telling `getopt' that there are no more
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If OPTS begins with `--', then non-option arguments are treated as
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arguments to the option '\0'. This behavior is specific to the GNU
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#ifdef __GNU_LIBRARY__
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/* Many other libraries have conflicting prototypes for getopt, with
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differences in the consts, in stdlib.h. To avoid compilation
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errors, only prototype getopt for the GNU C library. */
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extern int getopt (int argc, char *const *argv, const char *shortopts);
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extern int getopt (int ___argc, char *const *___argv, const char *__shortopts);
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#else /* not __GNU_LIBRARY__ */
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extern int getopt ();
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#endif /* __GNU_LIBRARY__ */
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extern int getopt_long (int argc, char *const *argv, const char *shortopts,
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const struct option *longopts, int *longind);
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extern int getopt_long_only (int argc, char *const *argv,
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const char *shortopts,
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const struct option *longopts, int *longind);
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#ifndef __need_getopt
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extern int getopt_long (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind);
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extern int getopt_long_only (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind);
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/* Internal only. Users should not call this directly. */
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extern int _getopt_internal (int argc, char *const *argv,
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const char *shortopts,
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const struct option *longopts, int *longind,
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#else /* not __STDC__ */
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extern int getopt ();
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extern int getopt_long ();
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extern int getopt_long_only ();
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extern int _getopt_internal ();
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#endif /* __STDC__ */
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extern int _getopt_internal (int ___argc, char *const *___argv,
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const char *__shortopts,
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const struct option *__longopts, int *__longind,
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#ifdef __cplusplus
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#endif /* _GETOPT_H */
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/* Make sure we later can get all the definitions and declarations. */
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#endif /* getopt.h */
added
removed
h/getopt.h
