Singleton.cpp

class Singleton {
public:
  static Singleton& getInstance()
  {
    static Singleton instance;  // Guaranteed to be destroyed.
                                // Instantiated on first use.
    return instance;
  }
private:
  Singleton() {};                     // Constructor (the {} brackets) are needed here.

  // Declare copy constructors to be unaccessible

  Singleton(Singleton const&);        // Don't implement
  void operator=(Singleton const&);   // Don't implement
};