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/*
* Copyright (c) 2017-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include <cstdarg>
#include <cstdio>
double average(int count, ...) {
va_list ap;
int j;
double sum = 0;
va_start(ap,
count); /* Requires the last fixed parameter (to get the address) */
for (j = 0; j < count; j++) {
sum += va_arg(ap, int); /* Increments ap to the next argument. */
}
va_end(ap);
return sum / count;
}
int main(int argc, char const* argv[]) {
printf("%f\n", average(3, 1, 2, 3));
return 0;
}