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48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/* Example of a Variadic Function
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Copyright (C) 1991-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdarg.h>
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#include <stdio.h>
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int
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add_em_up (int count,...)
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{
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va_list ap;
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int i, sum;
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va_start (ap, count); /* Initialize the argument list. */
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sum = 0;
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for (i = 0; i < count; i++)
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sum += va_arg (ap, int); /* Get the next argument value. */
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va_end (ap); /* Clean up. */
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return sum;
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}
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int
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main (void)
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{
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/* This call prints 16. */
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printf ("%d\n", add_em_up (3, 5, 5, 6));
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/* This call prints 55. */
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printf ("%d\n", add_em_up (10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
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return 0;
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}
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