/* Example of a Variadic Function

   Copyright (C) 1991-2018 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, if not, see <http://www.gnu.org/licenses/>.

*/

#include <stdarg.h>

#include <stdio.h>

int

add_em_up (int count,...)

{

  va_list ap;

  int i, sum;

  va_start (ap, count);		/* Initialize the argument list. */

  sum = 0;

  for (i = 0; i < count; i++)

    sum += va_arg (ap, int);	/* Get the next argument value. */

  va_end (ap);			/* Clean up. */

  return sum;

}

int

main (void)

{

  /* This call prints 16. */

  printf ("%d\n", add_em_up (3, 5, 5, 6));

  /* This call prints 55. */

  printf ("%d\n", add_em_up (10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));

  return 0;

}