Thread: vector of function pointers

A singleton is a very basic concept really.
You can use lazy instantiation, or controlled. Lazy is fine if it does not matter who/what creates the singleton first, but is not ok if the creation time matters(rare case IMO).

This is a basic class using lazy instantiation.(not tested so may have syntax error)

Code:

class MySingleton
{
private:
  MySingleton() {};
  ~MySingleton() {};

  static MySingleton* m_Singleton;

public:
  static MySingleton* Get()
  {
     if ( !m_Singleton )
        m_Singleton = new MySingleton();
     return m_Singleton;
   }

   static void Release()
   { 
       if ( m_Singleton )
      {
         delete m_Singleton;
         m_Singleton = 0;
       }
    }
};

//To use it
MySingleton* Test = MySingleton::Get();

//Don't forget to release it when your done
MySingleton::Release();

The other way is pretty simple to figure out.