/*
* Copyright (c) 2015 - present Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

void using_value() {
  int v = 3;
  int &r = ++v;
  int &q = --v;
}

void using_ref() {
  int v = 3;
  int &vr = v;
  int &r = ++vr;
  int &q = --vr;
}