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Diffstat (limited to 'REORG.TODO/manual/examples/add.c')
-rw-r--r-- | REORG.TODO/manual/examples/add.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/manual/examples/add.c b/REORG.TODO/manual/examples/add.c new file mode 100644 index 0000000000..9261f105da --- /dev/null +++ b/REORG.TODO/manual/examples/add.c @@ -0,0 +1,47 @@ +/* Example of a Variadic Function + Copyright (C) 1991-2017 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; +} |