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// SPDX-License-Identifier: LGPL-2.1-or-later
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <math.h>
int main()
{
pid_t child = fork();
if (child == 0) {
double sum = 0;
for (int i = 0; i < 1000000; ++i) {
sum += cos(cos(i) * cos(i) + cos(i * i) + cos(cos(i)));
}
printf("sum is: %g\n", sum);
} else {
printf("waiting for child\n");
waitpid(child, NULL, 0);
printf("done waiting\n");
}
return 0;
}
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