glibc/manual/examples/argp-ex1.c

/* Argp example #1 -- a minimal program using argp
   Copyright (C) 1991-2021 Free Software Foundation, Inc.

   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
   of the License, 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, see <https://www.gnu.org/licenses/>.
*/

/* This is (probably) the smallest possible program that
   uses argp.  It won't do much except give an error
   messages and exit when there are any arguments, and print
   a (rather pointless) messages for --help.  */

#include <stdlib.h>
#include <argp.h>

int
main (int argc, char **argv)
{
  argp_parse (0, argc, argv, 0, 0, 0);
  exit (0);
}