test auto keyword with lvalue's reference

test-auto-with-lvalue-reference.cpp

class A {
public:
  A() : _value(0) {}
  
  int& get() { return _value; }
  void print() { std::cout << _value << std::endl; }
  
private:
  int _value;
};

int main(void) {
  A a;
  auto local = a.get();
  local = 1;
  a.print();
  
  auto& local2 = a.get();
  local2 = 2;
  a.print();
  
  return 0;
}

/*
==============================
output: 
0
2
------------------------------
*/