examples/TestMasterMicroMod/getopt.h
author Edouard Tisserant
Thu, 24 Jan 2019 13:53:01 +0100
changeset 808 de1fc3261f21
parent 166 b6fbc1c59a44
permissions -rw-r--r--
Adding -fPIC isn't necessary of xeno-config is set correctly. Backed out changeset b9f1fcda7d30
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/* from http://www.pwilson.net/getopt.html */
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/* getopt.h */
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/* Declarations for getopt.
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   Copyright (C) 1989-1994, 1996-1999, 2001 Free Software 
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   Foundation, Inc. This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute 
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   it and/or modify it under the terms of the GNU Lesser 
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   General Public License as published by the Free Software 
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   Foundation; either version 2.1 of the License, or 
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   (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will 
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   be useful, but WITHOUT ANY WARRANTY; without even the 
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   implied warranty of MERCHANTABILITY or FITNESS FOR A 
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   PARTICULAR PURPOSE.  See the GNU Lesser General Public 
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   License for more details.
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   You should have received a copy of the GNU Lesser General 
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   Public License along with the GNU C Library; if not, write 
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   to the Free Software Foundation, Inc., 59 Temple Place,
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   Suite 330, Boston, MA 02111-1307 USA.  */
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#ifndef _GETOPT_H
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#ifndef __need_getopt
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# define _GETOPT_H 1
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#endif
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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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# include <ctype.h>
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#endif
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#ifdef  __cplusplus
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extern "C" {
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#endif
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/* For communication from `getopt' to the caller.
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   When `getopt' finds an option that takes an argument,
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   the argument value is returned here.
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   Also, when `ordering' is RETURN_IN_ORDER,
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   each non-option ARGV-element is returned here.  */
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extern char *optarg;
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/* Index in ARGV of the next element to be scanned.
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   This is used for communication to and from the caller
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   and for communication between successive calls to `getopt'.
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   On entry to `getopt', zero means this is the first call; initialize.
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   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.
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   Otherwise, `optind' communicates from one call to the next
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   how much of ARGV has been scanned so far.  */
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extern int optind;
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/* Callers store zero here to inhibit the error message `getopt' prints
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   for unrecognized options.  */
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extern int opterr;
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/* Set to an option character which was unrecognized.  */
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extern int optopt;
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#ifndef __need_getopt
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/* Describe the long-named options requested by the application.
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   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
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   of `struct option' terminated by an element containing a name which is
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   zero.
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   The field `has_arg' is:
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   no_argument          (or 0) if the option does not take an argument,
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   required_argument    (or 1) if the option requires an argument,
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   optional_argument    (or 2) if the option takes an optional argument.
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   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
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   left unchanged if the option is not found.
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   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
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   value (the equivalent single-letter option character, if there is
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   one).  For long options that have a zero `flag' field, `getopt'
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   returns the contents of the `val' field.  */
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struct option
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{
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# if (defined __STDC__ && __STDC__) || defined __cplusplus
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  const char *name;
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# else
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  char *name;
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# endif
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  /* has_arg can't be an enum because some compilers complain about
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     type mismatches in all the code that assumes it is an int.  */
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  int has_arg;
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  int *flag;
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  int val;
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};
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/* Names for the values of the `has_arg' field of `struct 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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#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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   returned.
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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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   options.
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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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   `getopt'.  */
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#if (defined __STDC__ && __STDC__) || defined __cplusplus
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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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# else /* not __GNU_LIBRARY__ */
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extern int getopt ();
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# endif /* __GNU_LIBRARY__ */
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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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                             int __long_only);
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# endif
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#else /* not __STDC__ */
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extern int getopt ();
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# ifndef __need_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
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#endif /* __STDC__ */
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#ifdef  __cplusplus
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}
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#endif
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/* Make sure we later can get all the definitions and declarations.  */
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#undef __need_getopt
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#endif /* getopt.h */
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