Cannot access private member in singleton class destructor

Question

I\'m trying to implement this singleton class. But I encountered this error:

\'Singleton::~Singleton\': cannot access private member declared in class \'Singleton\'

Answer 1

class Singleton
{
     static Singleton *pInstance = NULL;  
     Singleton(){};

     public:

    static Singleton * GetInstance() {

          if(!pInstance)
          {
               pInstance = new Singleton();
          }
          return pInstance;
     }

     static void  RemoveInstance() {

          if(pInstance)
          {
               delete pInstance;
               pInstance = NULL;
          }

     }
};