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#include <stdio.h>
int main() {
int x = 10;
int y = __sync_add_and_fetch(&x, 5);
printf("*%d,%d*\n", x, y);
x = 10;
y = __sync_fetch_and_add(&x, 5);
printf("*%d,%d*\n", x, y);
x = 10;
y = __sync_lock_test_and_set(&x, 6);
printf("*%d,%d*\n", x, y);
x = 10;
y = __sync_bool_compare_and_swap(&x, 9, 7);
printf("*%d,%d*\n", x, y);
y = __sync_bool_compare_and_swap(&x, 10, 7);
printf("*%d,%d*\n", x, y);
return 0;
}
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