rvalue reference disabled

rvaluedisabled

class CrashDestination {
 public:
  CrashDestination(const std::string& aString)
    : theString(aString)
  {}
  CrashDestination(const std::string&&) = delete;
 
  void print() const { std::cout << theString << std::endl; }
 private:
  const std::string& theString;
};