| /* Example of a Variadic Function |
| Copyright (C) 1991-2014 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; |
| } |