advansys: use 'bool' instead of 'int'

[linux-2.6/btrfs-unstable.git] / tools / build / feature / test-sync-compare-and-swap.c

#include <stdint.h>

volatile uint64_t x;

int main(int argc, char *argv[])
{
        uint64_t old, new = argc;

        argv = argv;
        do {
                old = __sync_val_compare_and_swap(&x, 0, 0);
        } while (!__sync_bool_compare_and_swap(&x, old, new));
        return old == new;
}