text: int main() {
    unsigned int a[10] = { 0xFFFFFFFF };
    unsigned int b[10] = { 0xFFFFFFFF };
    unsigned int c[10] = { 0xFFFFFFFE };
    if (__builtin_memcmp(&a, &a, sizeof(a))) {
      return 1;
    }
    if (__builtin_memcmp(&a, &b, sizeof(a))) {
      return 1;
    }
    if (!__builtin_memcmp(&a, &c, sizeof(a))) {
      return 1;
    }
    return 0;
  }
  