Function DecrementThread

be/src/common/atomic-test.cc:78–82

template<typename T>
static void DecrementThread(int64_t id, int64_t n, AtomicInt<T>* ai) {
  for (int64_t i = 0; i < n * id; ++i) {
    ai->Add(-1);
  }
}

template<typename T>
static void TestMultipleThreadsIncDec() {